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"count": 257662,
"next": "https://hermes.lco.global/api/v0/messages/?format=api&limit=100&offset=2100&ordering=topic",
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"results": [
{
"id": 6582,
"topic": "gcn.circular",
"uuid": "14090325-72d4-48a9-a25d-a7b239f1ad81",
"title": "GRB 240414B: Fermi GBM Final Real-time Localization",
"submitter": "Hop gcn.circular",
"authors": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
"data": {
"date": "24/04/15 12:32:00 GMT",
"from": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/36112"
},
"title": "GCN CIRCULAR",
"number": "36112",
"subject": "GRB 240414B: Fermi GBM Final Real-time Localization"
},
"message_text": "The Fermi GBM team reports the detection of a likely LONG GRB\n\nAt 02:20:39 UT on 14 Apr 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240414B (trigger 734754044.261764 / 240414098).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 188.2, Dec = 58.1 (J2000 degrees, equivalent to J2000 12h 32m, 58d 06'), with a statistical uncertainty of 4.7 degrees.\n\nThe angle from the Fermi LAT boresight is 47.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240414098/quicklook/glg_skymap_all_bn240414098.png\n\nThe HEALPix FITS file, including the estimated localization systematic, can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240414098/quicklook/glg_healpix_all_bn240414098.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240414098/quicklook/glg_lc_medres34_bn240414098.gif\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/36112.",
"published": "2024-04-15T12:32:18.571307Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-04-15T12:32:18.571325Z",
"modified": "2024-04-15T12:32:18.579672Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5936,
"topic": "gcn.circular",
"uuid": "3d51345a-7f53-4d84-8ed1-95d056fe91dd",
"title": "GRB 240128A: MAXI/GSC detection",
"submitter": "Hop gcn.circular",
"authors": "Kazutaka Yamaoka at Nagoya Univ. <yamaoka@isee.nagoya-u.ac.jp>",
"data": {
"date": "24/01/28 22:09:40 GMT",
"from": "Kazutaka Yamaoka at Nagoya Univ. <yamaoka@isee.nagoya-u.ac.jp>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35646"
},
"title": "GCN CIRCULAR",
"number": "35646",
"subject": "GRB 240128A: MAXI/GSC detection"
},
"message_text": "\nK. Yamaoka (Nagoya U.), H. Negoro (Nihon U.), M. Serino (AGU),\nW. Iwakiri (Chiba U.), M. Nakajima, K. Kobayashi, M. Tanaka,\nY. Soejima, Y. Kudo (Nihon U.), T. Mihara, T. Kawamuro, S. Yamada,\nT. Tamagawa, N. Kawai, M. Matsuoka (RIKEN), T. Sakamoto, S. Sugita,\nH. Hiramatsu, H. Nishikawa, A. Yoshida (AGU), Y. Tsuboi, S. Urabe,\nS. Nawa, N. Nemoto, E.Goto (Chuo U.), M. Shidatsu, Y. Niida (Ehime U.),\nI. Takahashi, M. Niwano, S. Sato, N. Higuchi, Y. Yatsu (Tokyo Tech),\nS. Nakahira, S. Ueno, H. Tomida, M. Ishikawa, S. Ogawa, T. Kurihara (JAXA),\nY. Ueda, K. Setoguchi, T. Yoshitake, Y. Nakatani, Y. Okada (Kyoto U.),\nM. Yamauchi, Y. Hagiwara, Y. Umeki, Y. Otsuki (Miyazaki U.),\nY. Kawakubo (LSU), and M. Sugizaki (NAOC)\n\n\nThe MAXI/GSC nova alert system triggered on an uncatalogued X-ray\ntransient source at 15:14:03 UT on January 28, 2024.\nBecause our localization program did not run, we can not provide a\nprecise error region.\nThe source position determined with the nova alert system (Negoro et\nal. 2016) is\n\n(R.A., Dec) = (139.846 deg, -5.053 deg) = (09 19 23.04, -05 03 10.8) (J2000)\n\nwith an uncertainty of more than 30 arc-min. The burst duration is\nabout 30 sec, and the averaged X-ray flux in the 2-10 keV range was about 600 mCrab.\nThis event was also detected by INTEGRAL SPI-ACS.\nThere was no significant excess flux in the previous transit at 13:37 UT\nwith an upper limit of 20 mCrab.\n\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35646.",
"published": "2024-01-28T22:09:52.703476Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-01-28T22:09:52.703495Z",
"modified": "2024-01-28T22:09:52.711258Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5937,
"topic": "gcn.circular",
"uuid": "584b7b69-20d5-4515-bd80-26583fb9d3aa",
"title": "GRB 240128A: CALET Gamma-Ray Burst Monitor detection",
"submitter": "Hop gcn.circular",
"authors": "Yuta Kawakubo at Louisiana State University <kawakubo1@lsu.edu>",
"data": {
"date": "24/01/28 23:37:46 GMT",
"from": "Yuta Kawakubo at Louisiana State University <kawakubo1@lsu.edu>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35647"
},
"title": "GCN CIRCULAR",
"number": "35647",
"subject": "GRB 240128A: CALET Gamma-Ray Burst Monitor detection"
},
"message_text": "A. Yoshida, T. Sakamoto, S. Sugita (AGU), Y. Kawakubo (LSU),\nK. Yamaoka (Nagoya U), S. Nakahira (JAXA),\nY. Asaoka (ICRR), S. Torii, Y. Akaike, K. Kobayashi (Waseda U),\nY. Shimizu, T. Tamura (Kanagawa U), N. Cannady (GSFC/UMBC),\nM. L. Cherry (LSU), S. Ricciarini (U of Florence),\nP. S. Marrocchesi (U of Siena),\nand the CALET collaboration:\n\nThe long GRB 240128A (MAXI/GSC detection, Yamaoka et al.,\nGCN Circ. 35646) triggered the CALET Gamma-ray Burst Monitor\n(CGBM) at 15:13:34.34 UTC on 28 January 2024\n(http://cgbm.calet.jp/cgbm_trigger/flight/1390489809/).\nThe burst signal was seen by all CGBM detectors.\n\nThe burst light curve shows a multi-peaked structure that starts\nat T+1.4 sec, peaks at T+10.8 sec, and ends at T+15.2 sec.\nThe T90 and T50 durations measured by the SGM data are 12.5 +/- 0.6 sec\nand 7.2 +/- 0.6 sec (40-1000 keV), respectively.\n\nThe ground-processed light curve is available at\n\nhttp://cgbm.calet.jp/cgbm_trigger/ground/1390489809/index.html\n\nThe CALET data used in this analysis are provided by\nthe Waseda CALET Operation Center located at Waseda University.\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35647.",
"published": "2024-01-28T23:37:56.860789Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-01-28T23:37:56.860805Z",
"modified": "2024-01-28T23:37:56.868473Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5938,
"topic": "gcn.circular",
"uuid": "5792702a-2138-4841-9d48-7232e6f42130",
"title": "GRB 240128A: Tiled Swift observations",
"submitter": "Hop gcn.circular",
"authors": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
"data": {
"date": "24/01/29 04:07:06 GMT",
"from": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35648"
},
"title": "GCN CIRCULAR",
"number": "35648",
"subject": "GRB 240128A: Tiled Swift observations"
},
"message_text": "\nP. A. Evans (U. Leicester) reports on behalf of the Swift team:\n\nSwift has initiated a series of observations, tiled on the sky, of the\nMAXI GRB 240128A. Automated analysis of the XRT data will\nbe presented online at http://www.swift.ac.uk/xrt_products/TILED_GRB00120\n\nAny uncatalogued X-ray sources detected in this analysis will be\nreported on this website and via GCN COUNTERPART notices. The probability of finding\nserendipitous sources, unrelated to the MAXI event is high: any X-ray source\nconsidered to be a probable afterglow candidate will be reported via a GCN Circular\nafter manual consideration.\n\nDetails of the XRT automated analysis methods are detailed in Evans et\nal. (2007, A&A, 469, 379; 2009, MNRAS, 397, 1177 and 2014, ApJS, 210, 8).\n\nThis circular is an official product of the Swift-XRT team.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35648.",
"published": "2024-01-29T04:07:21.502739Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-01-29T04:07:21.502758Z",
"modified": "2024-01-29T04:07:21.511127Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6583,
"topic": "gcn.circular",
"uuid": "0c2e9c36-4747-4dcd-92b6-f4edb68185ff",
"title": "GRB 240414A: Mondy optical observations",
"submitter": "Hop gcn.circular",
"authors": "Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>",
"data": {
"date": "24/04/15 13:04:11 GMT",
"from": "Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/36113"
},
"title": "GCN CIRCULAR",
"number": "36113",
"subject": "GRB 240414A: Mondy optical observations"
},
"message_text": "N. Pankov (HSE, IKI), A. Pozanenko (IKI), E. Klunko (ISTP), S. Belkin (IKI) report on behalf of GRB-IKI-FuN:\n\nWe observed the field of GRB 240414A (Caputo et. al., GCN 36083) at redshift z=1.833 (Adami et al., GCN 36085; de Ugarte Postigo et al., GCN 36087) with 1.5-meter AZT-33IK telescope of Sayan observatory at Mondy. The observations were started on 2024-04-14 (UT) 13:56:41, i.e. ~12 hr since the Swift trigger. We took 45 frame 120 s each in the R-filter.\nThe optical counterpart (Schneider et al., GCN 36084; Adami et al., GCN 36085; de Ugarte Postigo et al., GCN 36087; Niwano et al., GCN 36088; Lipunov et al., GCN 36095; Dutton et al., GCN 36097; Peretto, GCN 36100; Turpin et al., GCN 36101; Karambelkar et al., GCN 36103) is well detected in the stacked image at coordinates of (J2000) 12:19:08.09 +56:44:28.8. Preliminary photometry of the optical source is following:\n\nDate UT_start t-T0 Filter Exp. OT err UL(3sigma)\n (mid, days) (s)\n2024-04-14 13:56:41 0.51395 R 44*120 20.60 0.12 22.2\n\nThe magnitudes were calibrated with respect to nearby USNO-B1.0 stars.\nAssuming no spectral evolution between earlier observations(Turpin et al., GCN 36101), we estimate a power law decay index to be alpha~1.2, which is in agreement with SkyNet observations (Dutton et al., GCN 36097).\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/36113.",
"published": "2024-04-15T13:04:35.284492Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-04-15T13:04:35.284507Z",
"modified": "2024-04-15T13:04:35.293861Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5940,
"topic": "gcn.circular",
"uuid": "a5840ffa-0c6b-4f11-900f-9dcf7b9aedb2",
"title": "GRB 240128A: Swift-XRT observations",
"submitter": "Hop gcn.circular",
"authors": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
"data": {
"date": "24/01/29 15:53:21 GMT",
"from": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35650"
},
"title": "GCN CIRCULAR",
"number": "35650",
"subject": "GRB 240128A: Swift-XRT observations"
},
"message_text": "M. Perri (SSDC & INAF-OAR), S. Dichiara (PSU), J.A. Kennea (PSU), A.\nTohuvavohu (U. Toronto), K.L. Page (U. Leicester), A.P. Beardmore (U.\nLeicester), V. D'Elia (SSDC & INAF-OAR), B. Sbarufatti (INAF-OAB) and\nP.A. Evans (U. Leicester) reports on behalf of the Swift-XRT team:\n\nSwift-XRT has performed follow-up observations of the MAXI-detected\nburst GRB 240128A in a series of observations tiled on the sky. The\ntotal exposure time is 1.4 ks, distributed over 6 tiles; the maximum\nexposure at a single sky location was 460 s. The data were collected\nbetween T0+46.4 ks and T0+52.4 ks, and are entirely in Photon Counting\n(PC) mode.\n\nOne uncatalogued X-ray source has been detected, it is below the RASS\nlimit and shows no definitive signs of fading. Therefore, at the\npresent time we cannot confirm this as the afterglow. Details of this\nsource are given below:\n\nSource 1:\n RA (J2000.0): 140.1536 = 09:20:36.87\n Dec (J2000.0): -5.2004 = -05:12:01.5\n Error: 8.8 arcsec (radius, 90% conf.)\n Count-rate: 0.0149 [+0.0080, -0.0059] ct s^-1\n Distance: 1224 arcsec from MAXI position.\n Flux: (2.9 [+1.6, -1.2])e-13 erg cm^-2 s^-1 (observed, 0.3-10 keV)\n\nA catalogued source was also detected.\n\nThe results of the XRT-team automatic analysis of the tiled XRT\nobservations, including a position-specific upper limit calculator, are\navailable at https://www.swift.ac.uk/xrt_products/TILED_GRB00120.\n\nThis circular is an official product of the Swift-XRT team.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35650.",
"published": "2024-01-29T15:53:29.899672Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-01-29T15:53:29.899690Z",
"modified": "2024-01-29T15:53:29.905305Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5941,
"topic": "gcn.circular",
"uuid": "37decbdb-3da6-48f5-871b-9a849cb17d5f",
"title": "GRB 240128A: Glowbug gamma-ray detection",
"submitter": "Hop gcn.circular",
"authors": "C.C. Cheung at Naval Research Lab <Teddy.Cheung@nrl.navy.mil>",
"data": {
"date": "24/01/29 16:07:31 GMT",
"from": "C.C. Cheung at Naval Research Lab <Teddy.Cheung@nrl.navy.mil>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35651"
},
"title": "GCN CIRCULAR",
"number": "35651",
"subject": "GRB 240128A: Glowbug gamma-ray detection"
},
"message_text": "C.C. Cheung, M. Kerr, J.E. Grove, R. Woolf (NRL), A. Goldstein (USRA), C.A. Wilson-Hodge, D. Kocevski (MSFC), and M.S. Briggs (UAH) report:\n \nThe Glowbug gamma-ray telescope [1,2], operating on the International Space Station, reports the detection of GRB 240128A, which was also detected by MAXI/GSC (GCN 35646), CALET/CGBM (GCN 35647), GRBAlpha (GCN 35649), and INTEGRAL/SPI-ACS (Trigger 10493).\n \nUsing an adaptive window with a resolution of 32-ms, the burst onset is determined to be 2024-01-28 15:13:35.064 with a duration of 18.4 s and a total significance of about 44.8 sigma. The light curve comprises a multi-peaked structure similar to that observed by CALET/CGBM (GCN 35647).\n \nUsing a standard power-law function with an exponential high-energy cutoff [3] to model the emission over this duration results in a photon index dN/dE~E^x of x=1.9 and a cutoff energy (\"Epeak\") of 176 keV. The modeled 10-10000 keV fluence is 2.0e-06 erg/cm^2.\n \nThe analysis results presented here are preliminary and use a response function that lacks a detailed characterization of the surrounding passive structure of the ISS.\n \nGlowbug is a NASA-funded technology demonstrator for sensitive, low-cost gamma-ray transient telescopes developed, built, and operated by the U.S. Naval Research Laboratory (NRL) with support from the University of Alabama in Huntsville, USRA, and NASA MSFC. It was launched on 2023 March 15 aboard the Department of Defense Space Test Programâs STP-H9 to the ISS. The detector comprises 12 large-area (15 cm x 15 cm) CsI:Tl panels covering the surface of a half cube, and two hexagonal (5-cm diameter, 10-cm length) CLLB scintillators, giving it a large field of view (instantaneous FoV ~2/3 sky) over a wide energy band of 50 keV to >2 MeV.\n \n[1] Grove, J.E. et al. 2020, Proc. Yamada Conf. LXXI, arXiv:2009.11959\n[2] Woolf, R.S. et al. 2022, Proc. SPIE, 12181, id. 121811O\n[3] Goldstein, A. et al. 2020, ApJ 895, 40, arXiv :1909.03006\n \nDistribution Statement A: Approved for public release. Distribution is unlimited.\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35651.",
"published": "2024-01-29T16:07:42.815889Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-01-29T16:07:42.815908Z",
"modified": "2024-01-29T16:07:42.820606Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5951,
"topic": "gcn.circular",
"uuid": "11c77065-a190-42e3-967a-59aa82a77225",
"title": "Swift-BAT triggers 1212787, 1212789 are not astrophysical.",
"submitter": "Hop gcn.circular",
"authors": "K.L. Page at U Leicester <klp5@leicester.ac.uk>",
"data": {
"date": "24/02/03 19:10:59 GMT",
"from": "K.L. Page at U Leicester <klp5@leicester.ac.uk>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35661"
},
"title": "GCN CIRCULAR",
"number": "35661",
"subject": "Swift-BAT triggers 1212787, 1212789 are not astrophysical."
},
"message_text": "\nP. A. Evans (U Leicester), C. Gronwall (PSU) and\nK. L. Page (U Leicester) report on behalf of the Neil Gehrels Swift\nObservatory Team:\n\nSwift triggers 1212787 and 1212789 were caused by a star track\nloss-of-lock event, and are not interesting events.\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35661.",
"published": "2024-02-03T19:11:16.562427Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-03T19:11:16.562459Z",
"modified": "2024-02-03T19:11:16.581980Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5952,
"topic": "gcn.circular",
"uuid": "428e9644-57aa-470a-a8c1-cbdb8ce35c39",
"title": "Swift Trigger 1212791 is not an astrophysical event.",
"submitter": "Hop gcn.circular",
"authors": "K.L. Page at U Leicester <klp5@leicester.ac.uk>",
"data": {
"date": "24/02/03 19:46:45 GMT",
"from": "K.L. Page at U Leicester <klp5@leicester.ac.uk>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35662"
},
"title": "GCN CIRCULAR",
"number": "35662",
"subject": "Swift Trigger 1212791 is not an astrophysical event."
},
"message_text": "\nK. L. Page (U Leicester) report on behalf of the Neil Gehrels Swift\nObservatory Team:\n\nSwift-BAT trigger 1212791 is also related to the ongoing star tracker loss-of-lock event, and is not astrophysically of interest.\n\nWe also note that there was an earlier trigger (1212786) for which all TDRSS messages were lost, so no prompt alert was sent; this was also not astrophysical.\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35662.",
"published": "2024-02-03T19:46:59.455195Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-03T19:46:59.455218Z",
"modified": "2024-02-03T19:46:59.461556Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5942,
"topic": "gcn.circular",
"uuid": "2cbdb7ec-60a7-4371-8483-951062259ef6",
"title": "IPN triangulation of GRB 240125A (short)",
"submitter": "Hop gcn.circular",
"authors": "Dmitry Svinkin at Ioffe Institute <svinkin@mail.ioffe.ru>",
"data": {
"date": "24/01/29 20:50:21 GMT",
"from": "Dmitry Svinkin at Ioffe Institute <svinkin@mail.ioffe.ru>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35652"
},
"title": "GCN CIRCULAR",
"number": "35652",
"subject": "IPN triangulation of GRB 240125A (short)"
},
"message_text": "A.S. Kozyrev, D.V. Golovin, M.L. Litvak, I.G. Mitrofanov, and A.B. Sanin\non behalf of the HEND/Mars Odyssey team,\n\nD. Svinkin, D. Frederiks, A. Lysenko, A. Ridnaia,\nand T. Cline on behalf of the Konus-Wind team,\n\nG. Waratkar (IITB), J.Joshi (IUCAA), A. Vibhute (IUCAA),\nV. Bhalerao (IITB), D. Bhattacharya (Ashoka University/IUCAA),\nA. R. Rao (IUCAA/TIFR), and S. Vadawale (PRL)\non behalf of the Astrosat-CZTI team,\n\nS. Barthelmy, J. Cummings, H. Krimm, D. Palmer, and A. Tohuvavohu\non behalf of the Swift-BAT team,\n\nand\n\nW. Boynton, C. Fellows, K. Harshman, H. Enos, R. Starr,\nand A.S. Gardner on on behalf of the GRS-Odyssey GRB team,\nreport:\n\nThe short-duration GRB 240125A\n(Glowbug detection: Cheung et al., GCN 35630;\nAstroSat-CZTI detection: Joshi et al., GCN 35637;\nCALET-CGBM detection: Marrocchesi et al., GCN 35639;\nGRBAlpha detection: Dafcikova et al., GCN 35645)\nwas detected by Glowbug, Astrosat (CZTI) Konus-Wind,\nGRBAlpha, CALET (CGBM) and Mars-Odyssey (HEND)\nat about 34499 s UT (09:34:59).\n\nWe have triangulated it to a preliminary, 3 sigma error box\nwhose coordinates are:\n -------------------------------\n RA(2000), deg Dec(2000), deg\n -------------------------------\n Center:\n 131.528 +66.846\n Corners:\n 147.975 +59.476\n 147.882 +59.456\n 92.799 +68.770\n 93.211 +68.871\n --------------------------------\nThe error box area is 1.85 sq. deg and its maximum\ndimension is 24.6 deg (the minimum one is 3.3 arcmin).\nThe Sun distance was 132 deg.\n\nThis localization may be improved.\n\nA triangulation map and HEALPix FITS file are posted at\nhttp://www.ioffe.ru/LEA/GRBs/GRB240125_T34503/IPN\n\nThe Konus-Wind time history and spectrum will be given\nin a forthcoming GCN Circular.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35652.",
"published": "2024-01-29T20:50:34.082597Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-01-29T20:50:34.082621Z",
"modified": "2024-01-29T20:50:34.091181Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5943,
"topic": "gcn.circular",
"uuid": "d60992be-7a7b-4b4f-987e-6f03e3ad1790",
"title": "GRB 240129A: Swift/BAT-GUANO detection of a burst outside the coded FOV",
"submitter": "Hop gcn.circular",
"authors": "Jimmy DeLaunay at Penn State <delauj2@gmail.com>",
"data": {
"date": "24/01/30 18:32:45 GMT",
"from": "Jimmy DeLaunay at Penn State <delauj2@gmail.com>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35653"
},
"title": "GCN CIRCULAR",
"number": "35653",
"subject": "GRB 240129A: Swift/BAT-GUANO detection of a burst outside the coded FOV"
},
"message_text": "James DeLaunay (PSU), Samuele Ronchini (PSU), Gayathri Raman (PSU), Aaron Tohuvavohu (U Toronto), Jamie A. Kennea (PSU), Tyler Parsotan (NASA GSFC) report:\n\nSwift/BAT did not localize GRB 240129A onboard (T0: 2024-01-29T15:09:22.53 UTC, Fermi trig 728233767)\n\nThe Fermi notice, distributed in near real-time, triggered the Swift Mission Operations Center operated Gamma-ray Urgent Archiver for Novel Opportunities (GUANO; Tohuvavohu et al. 2020, ApJ, 900, 1).\n\nUpon trigger by this notice, GUANO sent a command to the Swift Burst Alert Telescope (BAT) to save 200 seconds of BAT event-mode data from [-50,+150] seconds around the time of the burst. All the requested event mode data was delivered to the ground.\n\nThe BAT likelihood search, NITRATES (DeLaunay + Tohuvavohu 2022, ApJ, 941, 169), performed on the temporal window [T0-20 s, T0+20 s], detects the burst with a sqrt(TS) of 15.8 in a 16.384 s analysis time bin, starting at T0 - 4.096 s.\n\nNITRATES results are consistent with a burst coming from outside the FOV, with DeltaLLHOut of 2.4.\n\nSee Section 9.1 and Figures 10 and 17 in the NITRATES paper for brief descriptions and interpretation of sqrt(TS), DeltaLLHPeak, and DeltaLLHOut.\n\nGUANO is a fully autonomous, extremely low latency, spacecraft commanding pipeline designed for targeted recovery of BAT event mode data around the times of compelling astrophysical events to enable more sensitive GRB searches.\n\nA live reporting of Swift/BAT event data recovered by GUANO can be found at: https://www.swift.psu.edu/guano/\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35653.",
"published": "2024-01-30T18:33:02.555872Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-01-30T18:33:02.555899Z",
"modified": "2024-01-30T18:33:02.567390Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5945,
"topic": "gcn.circular",
"uuid": "e4b66c11-699c-4a75-a95b-dab61c3fb998",
"title": "GRB 240129A: Fermi GBM Observation",
"submitter": "Hop gcn.circular",
"authors": "Vidushi Sharma at NASA GSFC/UMBC <vidushi.sharma@nasa.gov>",
"data": {
"date": "24/01/31 15:28:04 GMT",
"from": "Vidushi Sharma at NASA GSFC/UMBC <vidushi.sharma@nasa.gov>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35655"
},
"title": "GCN CIRCULAR",
"number": "35655",
"subject": "GRB 240129A: Fermi GBM Observation"
},
"message_text": "S. Dalessi (UAH), V Sharma (NASA-GSFC/UMBC) and C. Meegan (UAH) report\non behalf of the Fermi Gamma-ray Burst Monitor Team:\n\n\"At 15:09:22.53 UT on 29 January 2024, the Fermi Gamma-ray Burst Monitor (GBM)\ntriggered and located GRB 240129A (trigger 728233767/240129632), which was also\ndetected by Swift/BAT-GUANO (DeLaunay et al. 2024, GCN 35653).\n\nThe on-ground calculated location, using the Fermi GBM trigger data,\nis RA = 108.02, Dec = 34.60 (J2000 degrees, equivalent to\nJ2000 07h 12m, 34d 36'), with a statistical uncertainty of 3.18 degrees.\n(radius, 1-sigma containment, statistical only; there is additionally a\nsystematic error which we have characterized as a core-plus-tail model,\nwith 90% of GRBs having a 3.7 deg error and a small tail suffering a larger\nthan 10 deg systematic error [Connaughton et al. 2015, ApJS, 216, 32]).\n\nThe angle from the Fermi LAT boresight is 114 degrees.\n\nThe GBM light curve of a single emission episode with a duration (T90)\nof about 28 s (50-300 keV). The time-averaged spectrum\nfrom T0+6.1 to T0+21.5 s is best fit by\na power law function with an exponential high-energy cutoff.\nThe power law index is -1.24 +/- 0.09 and the cutoff energy,\nparameterized as Epeak, is 74 +/- 6 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(4.6 +/- 0.2)E-06 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+0.38 s in the 10-1000 keV band is 4.9 +/- 0.3 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog:\nhttps://heasarc.gsfc.nasa.gov/W3Browse/fermi/fermigbrst.html\n\nFor Fermi GBM data and info, please visit the official Fermi GBM Support Page:\nhttps://fermi.gsfc.nasa.gov/ssc/data/access/gbm/.\"\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35655.",
"published": "2024-01-31T15:28:20.446092Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-01-31T15:28:20.446114Z",
"modified": "2024-01-31T15:28:20.456483Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5955,
"topic": "gcn.circular",
"uuid": "951dcf67-4829-4695-a693-2d023dc4767b",
"title": "IceCube Alert 240204.38: Global MASTER-Net observations report",
"submitter": "Hop gcn.circular",
"authors": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"data": {
"date": "24/02/04 12:39:40 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35663"
},
"title": "GCN CIRCULAR",
"number": "35663",
"subject": "IceCube Alert 240204.38: Global MASTER-Net observations report"
},
"message_text": "V. Lipunov, V.Kornilov, E. Gorbovskoy, K. Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, V.Senik, D. Vlasenko,\nG.Antipov, D.Zimnukhov, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D. Cheryasov, Ya.Kechin, Yu.Tselik, A. Sosnovskij\n(Lomonosov Moscow State University, SAI, Physics Department),\n\nR. Podesta, C.Lopez, F. Podesta, C.Francile\n(Observatorio Astronomico Felix Aguilar OAFA),\n\nR. Rebolo, M. Serra\n(The Instituto de Astrofisica de Canarias),\n\nD. Buckley\n(South African Astronomical Observatory),\n\nO.A. Gress, N.M. Budnev, O.Ershova\n(Irkutsk State University, API),\n\nL.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez,\nA.R.Corella, L.H.Rodriguez\n(INAOE, Guillermo Haro Astrophysics Observatory),\n\nA. Tlatov, D. Dormidontov\n(Kislovodsk Solar Station of the Pulkovo Observatory),\n\nV. Yurkov, A. Gabovich\n(Blagoveschensk Educational State University)\n\nMASTER-Tunka robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Applied Physics Institute, Irkutsk State University) was pointed to the IceCube Alert 240204.38 (trigger No 62272876,23h 14m 35.52s , +11d 03m 32.4s, R=0.51) errorbox 6920 sec after notice time and 6988 sec after trigger time at 2024-02-04 11:05:28 UT, with upper limit up to 18.9 mag. Observations started at twilight. The observations began at zenith distance = 60 deg. The sun altitude is -10.4 deg.\n\nThe galactic latitude b = -45 deg., longitude l = 89 deg.\n\n\nReal time updated cover map and OT discovered available here:\nhttps://master.sai.msu.ru/site/master2/observ.php?id#71099\n\nWe obtain a following upper limits.\n\nTmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n 7018 | 2024-02-04 11:05:28 | MASTER-Tunka | (23h 14m 28.24s , +11d 09m 19.8s) | C | 60 | 16.2 | Coadd\n 7321 | 2024-02-04 11:10:31 | MASTER-Tunka | (23h 08m 00.78s , +10d 47m 13.2s) | C | 60 | 14.4 | Coadd\n 7709 | 2024-02-04 11:16:59 | MASTER-Tunka | (23h 16m 05.80s , +10d 48m 14.4s) | C | 60 | 14.7 | Coadd\n 8468 | 2024-02-04 11:29:38 | MASTER-Tunka | (23h 14m 28.13s , +11d 09m 38.0s) | C | 60 | 14.6 | Coadd\n 8843 | 2024-02-04 11:35:53 | MASTER-Tunka | (23h 07m 54.64s , +10d 47m 24.9s) | C | 60 | 14.1 | Coadd\n 9217 | 2024-02-04 11:42:07 | MASTER-Tunka | (23h 16m 02.60s , +10d 48m 22.4s) | C | 60 | 14.7 | Coadd\n 9470 | 2024-02-04 11:46:20 | MASTER-Tunka | (23h 14m 20.74s , +11d 07m 47.7s) | C | 60 | 17.9 | Coadd\n 9536 | 2024-02-04 11:47:25 | MASTER-Tunka | (23h 07m 58.87s , +10d 46m 11.9s) | C | 60 | 17.8 | Coadd\n 9893 | 2024-02-04 11:53:23 | MASTER-Tunka | (23h 16m 01.82s , +10d 46m 04.6s) | C | 60 | 18.9 |\nFilter C is a clear (unfiltred) band.\n\n\nThe observation and reduction will continue.\nThe message may be cited.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35663.",
"published": "2024-02-04T12:40:00.783364Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-04T12:40:00.783387Z",
"modified": "2024-02-04T12:40:00.792032Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5967,
"topic": "gcn.circular",
"uuid": "183f2761-6319-4c2b-b068-33f28c3fa797",
"title": "Fermi trigger No 728796365: Global MASTER-Net observations report",
"submitter": "Hop gcn.circular",
"authors": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"data": {
"date": "24/02/05 12:31:16 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35674"
},
"title": "GCN CIRCULAR",
"number": "35674",
"subject": "Fermi trigger No 728796365: Global MASTER-Net observations report"
},
"message_text": "V. Lipunov, V.Kornilov, E. Gorbovskoy, K. Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, V.Senik, D. Vlasenko,\nG.Antipov, D.Zimnukhov, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D. Cheryasov, Ya.Kechin, Yu.Tselik, A. Sosnovskij\n(Lomonosov Moscow State University, SAI, Physics Department),\n\nR. Podesta, C.Lopez, F. Podesta, C.Francile\n(Observatorio Astronomico Felix Aguilar OAFA),\n\nR. Rebolo, M. Serra\n(The Instituto de Astrofisica de Canarias),\n\nD. Buckley\n(South African Astronomical Observatory),\n\nO.A. Gress, N.M. Budnev, O.Ershova\n(Irkutsk State University, API),\n\nL.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez,\nA.R.Corella, L.H.Rodriguez\n(INAOE, Guillermo Haro Astrophysics Observatory),\n\nA. Tlatov, D. Dormidontov\n(Kislovodsk Solar Station of the Pulkovo Observatory),\n\nV. Yurkov, A. Gabovich\n(Blagoveschensk Educational State University)\n\nMASTER-Tunka robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the Fermi GRB240205.14 (trigger No 728796365,21h 04m 19.92s , +03d 49m 58.8s, R(.77) errorbox 27489 sec after notice time and 27525 sec after trigger time at 2024-02-05 11:04:45 UT, with upper limit up to 19.0 mag. Observations started at twilight. The observations began at zenith distance = 58 deg. The sun altitude is -10.0 deg.\n\nThe galactic latitude b = -28 deg., longitude l = 54 deg.\n\n\nReal time updated cover map and OT discovered available here:\nhttps://master.sai.msu.ru/site/master2/observ.php?id#71514\n\nWe obtain a following upper limits.\n\nTmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n 27556 | 2024-02-05 11:04:45 | MASTER-Tunka | (22h 23m 08.78s , +24d 05m 20.4s) | C | 60 | 16.2 | Coadd\n 27649 | 2024-02-05 11:06:18 | MASTER-Tunka | (22h 31m 48.61s , +24d 04m 20.8s) | C | 60 | 16.8 | Coadd\n 29249 | 2024-02-05 11:32:59 | MASTER-Tunka | (22h 23m 06.11s , +24d 04m 07.6s) | C | 60 | 16.4 | Coadd\n 29364 | 2024-02-05 11:34:54 | MASTER-Tunka | (22h 31m 48.75s , +24d 05m 27.6s) | C | 60 | 16.3 | Coadd\n 29991 | 2024-02-05 11:45:21 | MASTER-Tunka | (22h 23m 04.25s , +24d 04m 56.4s) | C | 60 | 18.8 |\n 30064 | 2024-02-05 11:46:34 | MASTER-Tunka | (22h 35m 53.68s , +20d 17m 32.7s) | C | 60 | 18.9 |\n 30136 | 2024-02-05 11:47:45 | MASTER-Tunka | (22h 44m 30.98s , +20d 16m 37.7s) | C | 60 | 19.0 |\n 30208 | 2024-02-05 11:48:58 | MASTER-Tunka | (22h 31m 44.67s , +24d 03m 21.1s) | C | 60 | 19.0 |\n 30280 | 2024-02-05 11:50:10 | MASTER-Tunka | (22h 37m 02.02s , +22d 11m 20.5s) | C | 60 | 19.0 |\n 30352 | 2024-02-05 11:51:21 | MASTER-Tunka | (22h 45m 40.05s , +22d 09m 39.5s) | C | 60 | 19.0 |\n 31175 | 2024-02-05 12:05:04 | MASTER-Tunka | (22h 35m 59.82s , +20d 15m 59.6s) | C | 60 | 18.9 |\n 31247 | 2024-02-05 12:06:17 | MASTER-Tunka | (22h 44m 24.73s , +20d 15m 06.5s) | C | 60 | 18.9 |\n 31320 | 2024-02-05 12:07:30 | MASTER-Tunka | (22h 37m 03.08s , +22d 09m 18.3s) | C | 60 | 19.0 |\n 31391 | 2024-02-05 12:08:41 | MASTER-Tunka | (22h 45m 38.78s , +22d 10m 40.6s) | C | 60 | 18.9 |\n 32208 | 2024-02-05 12:22:18 | MASTER-Tunka | (22h 35m 51.84s , +20d 14m 24.7s) | C | 60 | 18.6 |\n 32279 | 2024-02-05 12:23:28 | MASTER-Tunka | (22h 44m 30.15s , +20d 14m 49.5s) | C | 60 | 18.8 |\n 32350 | 2024-02-05 12:24:40 | MASTER-Tunka | (22h 37m 00.34s , +22d 10m 12.8s) | C | 60 | 18.9 |\nFilter C is a clear (unfiltred) band.\n\n\nThe observation and reduction will continue.\nThe message may be cited.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35674.",
"published": "2024-02-05T12:31:34.058684Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-05T12:31:34.058714Z",
"modified": "2024-02-05T12:31:34.067662Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5946,
"topic": "gcn.circular",
"uuid": "bfacb9aa-a55c-408f-a126-4e523443e5b1",
"title": "GRB 240201A: AstroSat CZTI detection",
"submitter": "Hop gcn.circular",
"authors": "Gaurav Waratkar at IIT Bombay <gauravwaratkar24@gmail.com>",
"data": {
"date": "24/02/02 13:14:15 GMT",
"from": "Gaurav Waratkar at IIT Bombay <gauravwaratkar24@gmail.com>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35656"
},
"title": "GCN CIRCULAR",
"number": "35656",
"subject": "GRB 240201A: AstroSat CZTI detection"
},
"message_text": "J. Joshi (IUCAA), G. Waratkar (IITB), A. Vibhute (IUCAA), V. Bhalerao (IITB), D. Bhattacharya (Ashoka University/IUCAA), A. R. Rao (IUCAA/TIFR), and S. Vadawale (PRL) report on behalf of the AstroSat CZTI collaboration:\n\nAnalysis of AstroSat CZTI data with the CIFT framework (Sharma et al., 2021, JApA, 42, 73) showed the detection of a long-duration GRB 240201A. Inspection of Integral SPI-ACS data also shows a detection of the burst.\n\nThe source was clearly detected in the CZT detectors in the 20-200 keV energy range. The light curve showed multiple peaks of emission with the strongest peak at 2024-02-01 18:33:32.50 UTC. The measured peak count rate associated with the burst is 205 (+39, -36) counts/s above the background in the combined data of all quadrants, with a total of 832 (+230, -175) counts. The local mean background count rate was 313 (+3, -5) counts/s. Using cumulative rates, we measure a T90 of 10 (+3, -4) s.\n\nThe source was also clearly detected in the CsI anticoincidence (Veto) detector in the 100-500 keV energy range. The light curve showed multiple peaks of emission with the strongest peak at 2024-02-01 18:33:32.47 UTC. The measured peak count rate associated with the burst is 335 (+68, -55) counts/s above the background in the combined data of all quadrants, with a total of 2054 (+352, -383) counts. The local mean background count rate was 1480 (+6, -7) counts/s. We measure a T90 of 11 (+3, -2) s from the cumulative Veto light curve.\n\nCZTI is built by a TIFR-led consortium of institutes across India, including VSSC, URSC, IUCAA, SAC, and PRL. The Indian Space Research Organisation funded, managed, and facilitated the project.\n\nCZTI GRB detections are reported regularly on the payload site at:\nhttp://astrosat.iucaa.in/czti/?q=grb\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35656.",
"published": "2024-02-02T13:14:31.887304Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-02T13:14:31.887327Z",
"modified": "2024-02-02T13:14:31.898272Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5947,
"topic": "gcn.circular",
"uuid": "d9229bcc-6686-4562-b462-8adbd554578f",
"title": "IPN triangulation of GRB 240124B",
"submitter": "Hop gcn.circular",
"authors": "Anna Ridnaia at Ioffe Institute <ridnaia@mail.ioffe.ru>",
"data": {
"date": "24/02/02 14:26:58 GMT",
"from": "Anna Ridnaia at Ioffe Institute <ridnaia@mail.ioffe.ru>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35657"
},
"title": "GCN CIRCULAR",
"number": "35657",
"subject": "IPN triangulation of GRB 240124B"
},
"message_text": "A. Ridnaia, D. Frederiks, D. Svinkin, A. Lysenko,\nand T. Cline on behalf of the Konus-Wind team,\n\nE. Bozzo and C. Ferrigno, on behalf of the INTEGRAL SPI-ACS GRB team,\n\nS. Barthelmy, J. Cummings, H. Krimm, D. Palmer, and A. Tohuvavohu\non behalf of the Swift-BAT team,\n\nand\n\nG. Waratkar (IITB), J.Joshi (IUCAA), A. Vibhute (IUCAA),\nV. Bhalerao (IITB), D. Bhattacharya (Ashoka University/IUCAA),\nA. R. Rao (IUCAA/TIFR), and S. Vadawale (PRL)\non behalf of the Astrosat-CZTI team,\n\nreport:\n\nThe long-duration GRB 240124B\n(AstroSat CZTI detection: Joshi et al., GCN 35636)\nwas detected by Konus-Wind, INTEGRAL (SPI-ACS),\nSwift (BAT), and AstroSat (CZTI)\nat about 76474 s UT (21:14:34).\nThe burst was outside the coded field of view of the BAT.\n\nWe have triangulated this GRB to the following annuli:\n---------------------------------------------------\nannulus R.A. Dec. R dR (3sigma)\n (deg) (deg) (deg) (deg)\n---------------------------------------------------\nKonus-SPI-ACS 114.536 21.719 79.082 2.281\nKonus-BAT 112.129 19.162 79.550 1.622\n---------------------------------------------------\n\nThe annuli combined with the KW ecliptic latitude response\ngive 254.7 sq.deg (3 sigma) localization region.\n\nA triangulation map and HEALPix FITS file are posted at\nhttp://www.ioffe.ru/LEA/GRBs/GRB240124_T76473/IPN\n\nThe Konus-Wind time history and spectrum will be given\nin a forthcoming GCN Circular.\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35657.",
"published": "2024-02-02T14:27:10.466011Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-02T14:27:10.466034Z",
"modified": "2024-02-02T14:27:10.473476Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5948,
"topic": "gcn.circular",
"uuid": "5f7052e6-4d77-443b-89e6-62c7bd4a9010",
"title": "Konus-Wind detection of GRB 240123C",
"submitter": "Hop gcn.circular",
"authors": "Alexandra Lysenko at Ioffe Institute <alexandra.lysenko@mail.ioffe.ru>",
"data": {
"date": "24/02/02 15:53:58 GMT",
"from": "Alexandra Lysenko at Ioffe Institute <alexandra.lysenko@mail.ioffe.ru>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35658"
},
"title": "GCN CIRCULAR",
"number": "35658",
"subject": "Konus-Wind detection of GRB 240123C"
},
"message_text": "A. Lysenko, D. Frederiks, A. Ridnaia, D. Svinkin, A. Tsvetkova, M. Ulanov,\nand T. Cline on behalf of the Konus-Wind team, report:\n\nThe short-duration GRB 240123C\n(IPN triangulation: Ridnaia et al., GCN circ. 35627;\nAstroSat CZTI detection: Joshi et al., GCN circ. 35635;\nGRBAlpha detection: Dafcikova et al., GCN circ. 35643)\ntriggered Konus-Wind at T0553.043 s UT (23:12:33.043).\n\nThe burst light curve shows a single-pulse structure\nwhich starts at ~T0-0.1 s and has a total duration of ~1.0 s.\nThe emission is seen up to 1 MeV.\n\nThe Konus-Wind light curve of this GRB is available at\nhttp://www.ioffe.ru/LEA/GRBs/GRB240123_T83553/\n\nAs observed by Konus-Wind, the burst\nhad a fluence of 2.91(-0.22,+0.23)x10^-6 erg/cm2,\nand a 16-ms peak flux, measured from T0+0.160s,\nof 1.17(-0.32,+0.33)x10^-5 erg/cm2/s\n(both in the 20 keV - 10 MeV energy range).\n\nA time-averaged spectrum of the burst\n(measured from T0 to T0+0.256 s)\nis best fit in the 20 keV - 10 MeV range\nby a power law with exponential cutoff model:\ndN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep)\nwith alpha = 0.85(-0.40,+0.46)\nand Ep = 210(-17,+19) keV (chi2 = 24/38 dof).\nFitting by a GRB (Band) model yields the close alpha and Ep,\nand an upper limit on the high energy photon index: beta < -2.8\n(chi2 = 22/37 dof).\n\nAll the quoted errors are at the 90% confidence level.\nAll the quoted values are preliminary.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35658.",
"published": "2024-02-02T15:54:14.242357Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-02T15:54:14.242372Z",
"modified": "2024-02-02T15:54:14.250710Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6584,
"topic": "gcn.circular",
"uuid": "8e33422c-3372-48fa-92e9-12662bd15451",
"title": "LXT 240402A/GRB 240402B: Swift follow-up observations",
"submitter": "Hop gcn.circular",
"authors": "Antonio Martin-Carrillo at UCD,Space Science Group <antonio.martin-carrillo@ucd.ie>",
"data": {
"date": "24/04/15 13:21:33 GMT",
"from": "Antonio Martin-Carrillo at UCD,Space Science Group <antonio.martin-carrillo@ucd.ie>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/36114"
},
"title": "GCN CIRCULAR",
"number": "36114",
"subject": "LXT 240402A/GRB 240402B: Swift follow-up observations"
},
"message_text": "A. Martin-Carrillo (UCD), S. Campana (INAF/Brera), D. B. Malesani (DAWN/NBI & Radboud Univ.), A. J. Levan (Radboud Univ.), G. Pugliese (Amsterdam), D. Xu (NAOC/CAS), N. R. Tanvir (Leicester), P. G. Jonker (Radboud Univ.), A. Rossi (INAF-OAS), P. OâBrien (Leicester) report on behalf of the Stargate collaboration:\n\nFollowing up the LEIA trigger LXT 240402A (Xu et al., GCN 36016) associated with the Konus-Wind GRB 240402B (Ridnaia et al., GCN 3628) and the detection of its X-ray counterpart (Jia et al., GCN 36022) a series of Swift follow-up observations (PI Xu, ID: 203030 and PI Martin-Carrillo, ID: 20382) were performed between April 7 and April 14, with a total exposure time of 8 ks.\n\nCombining all the data, a source is well detected with a count rate of 1.9 (+0.7, -0.6) x 10^-3 count s^-1 at the coordinates (J2000):\n\nRA: 16:21:47.75 (245.4490);\nDec: +25:45:45.9â (25.7627);\nError: 5.8â (90% confidence).\n\nUsing the spectral parameters of the EP-FXT detection (Jia et al., GCN 36022), this corresponds to an observed flux of 7.7*10^-14 erg cm^-2 s^-1. Assuming a mid-point for the Swift observations of 8.5 days after the LEIA trigger, and using a single power-law decay, the X-ray flux decays with an approximate index -1.2, typical for a GRB afterglow.\n\nThe source centroid lies within 1.5\" from the optical counterpart reported by Levan et al. (GCN 36025) and Yang et al. (GCN 36027). The reduced localisation error strengthens its association with the proposed optical counterpart.\n\nWe thank the Neil Gehrels Swift Observatory team for making these ToO observations possible.\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/36114.",
"published": "2024-04-15T13:21:47.856907Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-04-15T13:21:47.856921Z",
"modified": "2024-04-15T13:21:47.869241Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5949,
"topic": "gcn.circular",
"uuid": "2a260a2a-7b47-4327-afbe-5aa262699b80",
"title": "Konus-Wind detection of GRB 240124B",
"submitter": "Hop gcn.circular",
"authors": "Alexandra Lysenko at Ioffe Institute <alexandra.lysenko@mail.ioffe.ru>",
"data": {
"date": "24/02/02 15:58:30 GMT",
"from": "Alexandra Lysenko at Ioffe Institute <alexandra.lysenko@mail.ioffe.ru>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35659"
},
"title": "GCN CIRCULAR",
"number": "35659",
"subject": "Konus-Wind detection of GRB 240124B"
},
"message_text": "A. Lysenko, D. Frederiks, A. Ridnaia, D. Svinkin, A. Tsvetkova, M. Ulanov,\nand T. Cline on behalf of the Konus-Wind team, report:\n\nThe long-duration GRB 240124B\n(AstroSat CZTI detection: Joshi et al., GCN 35636;\nIPN triangulation: Ridnaia et al., GCN 35657)\ntriggered Konus-Wind at T0v473.999 s UT (21:14:33.999).\n\nThe burst light curve shows a single-pulse structure\nwhich starts at ~T0-1.1 s and has a total duration of ~4.0 s.\nThe emission is seen up to 3 MeV.\n\nThe Konus-Wind light curve of this GRB is available at\nhttp://www.ioffe.ru/LEA/GRBs/GRB240124_T76473/\n\nAs observed by Konus-Wind, the burst\nhad a fluence of 4.57(-0.85,+2.93)x10^-6 erg/cm2,\nand a 64-ms peak flux, measured from T0+0.228s,\nof 4.33(-1.37,+3.93)x10^-6 erg/cm2/s\n(both in the 20 keV - 10 MeV energy range).\n\nA time-averaged spectrum of the burst\n(measured from T0 to T0+8.448 s)\nis best fit in the 20 keV - 10 MeV range\nby a power law with exponential cutoff model:\ndN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep)\nwith alpha = -1.40(-0.35,+0.44)\nand Ep = 270(-94,+1040) keV (chi2 = 113/97 dof).\nFitting by a GRB (Band) model yields close alpha and Ep,\nand an upper limit on the high energy photon index: beta < -1.9\n(chi2 = 112/96 dof).\n\nAll the quoted errors are at the 90% confidence level.\nAll the quoted values are preliminary.\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35659.",
"published": "2024-02-02T15:58:38.944909Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-02T15:58:38.944932Z",
"modified": "2024-02-02T15:58:38.951082Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5950,
"topic": "gcn.circular",
"uuid": "290a8418-fd41-4ee1-9751-cac1538efecc",
"title": "GRB 230812B: Update on Bad Time Intervals for Fermi GBM data",
"submitter": "Hop gcn.circular",
"authors": "Oliver J Roberts at USRA/NASA <oliver.roberts@nasa.gov>",
"data": {
"date": "24/02/02 20:44:59 GMT",
"from": "Oliver J Roberts at USRA/NASA <oliver.roberts@nasa.gov>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35660"
},
"title": "GCN CIRCULAR",
"number": "35660",
"subject": "GRB 230812B: Update on Bad Time Intervals for Fermi GBM data"
},
"message_text": "O.J. Roberts (USRA) and W. Cleveland (USRA) report on behalf of the Fermi GBM Team:\n\n\"The Fermi Gamma-ray Burst Monitor data for GRB 230812B had a bad time interval affecting all data types and all detectors, which was reported in GCN #34694. Subsequently, we reprocessed the TTE data in an effort to remove spurious artefacts, such as the artificially created pulse centered at roughly T0+1.233 seconds due to TTE drop out. We encourage those in the community interested in analyzing this event, to use the v4 TTE trigger data found on the GBM HEASARC page: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230812790/current/\n\nWe note, that while we have tried to reprocess the data for this trigger to the best of our ability, pulse pile-up and deadtime effects still remain in all detectors and data types from roughly T0+0.5 to T0+1.4 seconds. We again, recommend the exclusion of these time intervals for GBM analysis of this burst, as well as caution using bins adjacent to these selections.\"\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35660.",
"published": "2024-02-02T20:45:11.688129Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-02T20:45:11.688145Z",
"modified": "2024-02-02T20:45:11.696543Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5961,
"topic": "gcn.circular",
"uuid": "07250d8a-4571-4896-838d-1e03ded7c6a4",
"title": "Fermi GRB 240204A: Global MASTER-Net observations report",
"submitter": "Hop gcn.circular",
"authors": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"data": {
"date": "24/02/04 16:15:52 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35668"
},
"title": "GCN CIRCULAR",
"number": "35668",
"subject": "Fermi GRB 240204A: Global MASTER-Net observations report"
},
"message_text": "V. Lipunov, V.Kornilov, E. Gorbovskoy, K. Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, V.Senik, D. Vlasenko,\nG.Antipov, D.Zimnukhov, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D. Cheryasov, Ya.Kechin, Yu.Tselik, A. Sosnovskij\n(Lomonosov Moscow State University, SAI, Physics Department),\n\nR. Podesta, C.Lopez, F. Podesta, C.Francile\n(Observatorio Astronomico Felix Aguilar OAFA),\n\nR. Rebolo, M. Serra\n(The Instituto de Astrofisica de Canarias),\n\nD. Buckley\n(South African Astronomical Observatory),\n\nO.A. Gress, N.M. Budnev, O.Ershova\n(Irkutsk State University, API),\n\nL.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez,\nA.R.Corella, L.H.Rodriguez\n(INAOE, Guillermo Haro Astrophysics Observatory),\n\nA. Tlatov, D. Dormidontov\n(Kislovodsk Solar Station of the Pulkovo Observatory),\n\nV. Yurkov, A. Gabovich\n(Blagoveschensk Educational State University)\n\nMASTER-Tunka robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the Fermi GRB 240204A ( Fermi GBM team, GCN 35664) errorbox 818 sec after notice time and 854 sec after trigger time at 2024-02-04 15:21:52 UT, with upper limit up to 20.8 mag. The observations began at zenith distance = 54 deg. The sun altitude is -48.0 deg.\n\nThe galactic latitude b = -2 deg., longitude l = 216 deg.\n\n\nReal time updated cover map and OT discovered available here:\nhttps://master.sai.msu.ru/site/master2/observ.php?id#71241\n\nWe obtain a following upper limits.\n\nTmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n 884 | 2024-02-04 15:21:52 | MASTER-Tunka | (06h 45m 43.71s , -03d 13m 03.5s) | C | 60 | 19.9 |\n 944 | 2024-02-04 15:21:52 | MASTER-Tunka | (06h 45m 43.71s , -03d 13m 03.5s) | C | 180 | 20.4 | Coadd\n 1154 | 2024-02-04 15:21:52 | MASTER-Tunka | (06h 45m 43.71s , -03d 13m 03.5s) | C | 600 | 20.8 | Coadd\n 947 | 2024-02-04 15:22:56 | MASTER-Tunka | (06h 45m 43.78s , -03d 13m 01.1s) | C | 60 | 19.9 |\n 1011 | 2024-02-04 15:23:59 | MASTER-Tunka | (06h 45m 43.83s , -03d 12m 59.8s) | C | 60 | 19.9 |\n 1074 | 2024-02-04 15:25:02 | MASTER-Tunka | (06h 45m 43.88s , -03d 12m 57.8s) | C | 60 | 19.9 |\n 1134 | 2024-02-04 15:25:02 | MASTER-Tunka | (06h 45m 43.88s , -03d 12m 57.9s) | C | 180 | 20.4 | Coadd\n 1201 | 2024-02-04 15:27:09 | MASTER-Tunka | (06h 45m 44.01s , -03d 12m 54.0s) | C | 60 | 19.8 |\n 1264 | 2024-02-04 15:28:12 | MASTER-Tunka | (06h 45m 44.05s , -03d 12m 52.5s) | C | 60 | 19.9 |\n 1327 | 2024-02-04 15:29:15 | MASTER-Tunka | (06h 45m 44.14s , -03d 12m 50.2s) | C | 60 | 19.9 |\n 1387 | 2024-02-04 15:29:15 | MASTER-Tunka | (06h 45m 44.14s , -03d 12m 50.2s) | C | 180 | 20.4 | Coadd\n 1454 | 2024-02-04 15:31:22 | MASTER-Tunka | (06h 45m 44.31s , -03d 12m 46.5s) | C | 60 | 19.8 |\n 1522 | 2024-02-04 15:32:30 | MASTER-Tunka | (06h 45m 49.39s , -03d 12m 38.6s) | C | 60 | 19.9 |\n 1585 | 2024-02-04 15:33:33 | MASTER-Tunka | (06h 45m 49.44s , -03d 12m 36.0s) | C | 60 | 20.0 |\n 1645 | 2024-02-04 15:33:33 | MASTER-Tunka | (06h 45m 49.44s , -03d 12m 36.0s) | C | 180 | 20.5 | Coadd\n 1648 | 2024-02-04 15:34:37 | MASTER-Tunka | (06h 45m 49.50s , -03d 12m 34.2s) | C | 60 | 20.0 |\n 1712 | 2024-02-04 15:35:40 | MASTER-Tunka | (06h 45m 49.57s , -03d 12m 32.2s) | C | 60 | 20.0 |\n 1775 | 2024-02-04 15:36:43 | MASTER-Tunka | (06h 45m 49.60s , -03d 12m 30.7s) | C | 60 | 20.0 |\n 1835 | 2024-02-04 15:36:43 | MASTER-Tunka | (06h 45m 49.61s , -03d 12m 30.8s) | C | 180 | 20.5 | Coadd\n 1838 | 2024-02-04 15:37:46 | MASTER-Tunka | (06h 45m 49.68s , -03d 12m 29.1s) | C | 60 | 20.1 |\n 1901 | 2024-02-04 15:38:50 | MASTER-Tunka | (06h 45m 49.73s , -03d 12m 27.3s) | C | 60 | 20.0 |\n 1965 | 2024-02-04 15:39:53 | MASTER-Tunka | (06h 45m 49.77s , -03d 12m 25.3s) | C | 60 | 20.0 |\n 2028 | 2024-02-04 15:40:56 | MASTER-Tunka | (06h 45m 49.82s , -03d 12m 23.8s) | C | 60 | 20.0 |\n 2091 | 2024-02-04 15:41:59 | MASTER-Tunka | (06h 45m 49.86s , -03d 12m 21.8s) | C | 60 | 20.0 |\nFilter C is a clear (unfiltred) band.\n\n\nThe observation and reduction will continue.\nThe message may be cited.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35668.",
"published": "2024-02-04T16:15:58.113042Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-04T16:15:58.113063Z",
"modified": "2024-02-04T16:15:58.118777Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5962,
"topic": "gcn.circular",
"uuid": "f8c802c5-28eb-41bc-b5db-4c74fc887b16",
"title": "Fermi Gamma-ray Burst Monitor trigger 728706420/240204102 is not a GRB",
"submitter": "Hop gcn.circular",
"authors": "Lorenzo Scotton at UAH <lscottongcn@outlook.com>",
"data": {
"date": "24/02/04 16:16:43 GMT",
"from": "Lorenzo Scotton at UAH <lscottongcn@outlook.com>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35669"
},
"title": "GCN CIRCULAR",
"number": "35669",
"subject": "Fermi Gamma-ray Burst Monitor trigger 728706420/240204102 is not a GRB"
},
"message_text": "L. Scotton (UAH) reports on behalf of the Fermi Gamma-ray Burst Monitor Team:\n\n\"The Fermi Gamma-ray Burst Monitor (GBM) trigger 728706420/240204102 at 02:26:55.07 UT\non 04 February 2024, tentatively classified as a GRB, is in fact not due\nto a GRB. This trigger is likely due to a solar flare.\"\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35669.",
"published": "2024-02-04T16:16:55.198182Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-04T16:16:55.198203Z",
"modified": "2024-02-04T16:16:55.203581Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5963,
"topic": "gcn.circular",
"uuid": "27f2ed39-cd83-4e8b-947f-5ecb7a61bfdd",
"title": "GRB 240204A: Mondy optical afterglow candidate",
"submitter": "Hop gcn.circular",
"authors": "Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>",
"data": {
"date": "24/02/04 18:05:52 GMT",
"from": "Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35670"
},
"title": "GCN CIRCULAR",
"number": "35670",
"subject": "GRB 240204A: Mondy optical afterglow candidate"
},
"message_text": "A. Pozanenko (IKI), E. Klunko (ISTP), N. Pankov (HSE, IKI), S. Belkin (IKI, HSE) report on behalf of IKI-GRB-FuN:\n\nWe observed the field of Swift localization of GRB 240204A (Cenko et al., GCN 35666) which is also detected be GMB/Fermi (Fermi GBM team GCN 35664) with AZT-33IK telescope of Mondy observatory starting on 2024-02-04 (UT) 16:05:26. In the first images of 60 s exposure we detected the object in coordinates of (J2000) 06:56:43.36, +01:01:37.7 with uncertainties of 0.2 arcsec in both coordinates. The position of the object is within XRT afterglow localization (Cenko et al., GCN 35666). The object is absent in PS1 catalogue. Preliminary photometry of the object is R ~ 20.6 based on USNO-B1.0 (R2) nearby stars.\n\nWe suggest the source is an afterglow of GRB 240204A.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35670.",
"published": "2024-02-04T18:06:04.506558Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-04T18:06:04.506581Z",
"modified": "2024-02-04T18:06:04.514054Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5956,
"topic": "gcn.circular",
"uuid": "d36729b4-8fe4-4d0a-bf3a-19c9f88b63eb",
"title": "GRB 240204A: Fermi GBM Final Real-time Localization",
"submitter": "Hop gcn.circular",
"authors": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
"data": {
"date": "24/02/04 15:18:07 GMT",
"from": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35664"
},
"title": "GCN CIRCULAR",
"number": "35664",
"subject": "GRB 240204A: Fermi GBM Final Real-time Localization"
},
"message_text": "The Fermi GBM team reports the detection of a likely LONG GRB\n\nAt 15:07:38 UT on 4 Feb 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240204A (trigger 728752063.677018 / 240204630).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 101.5, Dec = -3.4 (J2000 degrees, equivalent to J2000 06h 46m, -3d 23'), with a statistical uncertainty of 1.6 degrees.\n\nThe angle from the Fermi LAT boresight is 102.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240204630/quicklook/glg_skymap_all_bn240204630.png\n\nThe HEALPix FITS file, including the estimated localization systematic, can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240204630/quicklook/glg_healpix_all_bn240204630.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240204630/quicklook/glg_lc_medres34_bn240204630.gif\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35664.",
"published": "2024-02-04T15:18:23.239591Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-04T15:18:23.239611Z",
"modified": "2024-02-04T15:18:23.246363Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5957,
"topic": "gcn.circular",
"uuid": "80a45ef8-b440-4012-8164-9be2003c53e4",
"title": "IceCube-240204A - IceCube observation of a high-energy neutrino candidate track-like event",
"submitter": "Hop gcn.circular",
"authors": "Giacomo Sommani at Ruhr-Universität Bochum <gsommani@icecube.wisc.edu>",
"data": {
"date": "24/02/04 15:33:21 GMT",
"from": "Giacomo Sommani at Ruhr-Universität Bochum <gsommani@icecube.wisc.edu>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35665"
},
"title": "GCN CIRCULAR",
"number": "35665",
"subject": "IceCube-240204A - IceCube observation of a high-energy neutrino candidate track-like event"
},
"message_text": "The IceCube Collaboration (http://icecube.wisc.edu/) reports:\n\nOn 2024-02-04 at 09:09:00.44 UT IceCube detected a track-like event with a moderate probability of being of astrophysical origin. The event was selected by the ICECUBE_Astrotrack_Bronze alert stream. The average astrophysical neutrino purity for Bronze alerts is 30%. This alert has an estimated false alarm rate of 1.6084 events per year due to atmospheric backgrounds. The IceCube detector was in a normal operating state at the time of detection.\n\nAfter the initial automated alert (https://gcn.gsfc.nasa.gov/notices_amon_g_b/138938_62272876.amon) more sophisticated reconstruction algorithms have been applied offline, with the direction refined to:\n\nDate: 2024-02-04\nTime: 09:09:00.44\nRA: 348.40 (+1.10, -1.00 deg 90% PSF containment) J2000\nDec: +10.28 (+0.72, -0.76 deg 90% PSF containment) J2000\n\nWe encourage follow-up by ground and space-based instruments to help identify a possible astrophysical source for the candidate neutrino.\n\nThere are no Fermi 4FGL-DR4 or 3FHL catalog sources in the 90% uncertainty region. The nearest gamma-ray source in either catalog is 4FGL J2308.9+1111 at RA: 347.25 deg, Dec: 11.20 deg J2000 (1.46 deg away from the best-fit event position).\n\nThe IceCube Neutrino Observatory is a cubic-kilometer neutrino detector operating at the geographic South Pole, Antarctica. The IceCube realtime alert point of contact can be reached at roc@icecube.wisc.edu\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35665.",
"published": "2024-02-04T15:33:32.799890Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-04T15:33:32.799920Z",
"modified": "2024-02-04T15:33:32.805828Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5968,
"topic": "gcn.circular",
"uuid": "43230f77-7455-4a2f-9c4c-e6081f6c0403",
"title": "Fermi Gamma-ray Burst Monitor trigger 728740048/240204491 is not a GRB",
"submitter": "Hop gcn.circular",
"authors": "Christian Malacaria at ISSI <cmalacaria.astro@gmail.com>",
"data": {
"date": "24/02/05 14:55:09 GMT",
"from": "Christian Malacaria at ISSI <cmalacaria.astro@gmail.com>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35675"
},
"title": "GCN CIRCULAR",
"number": "35675",
"subject": "Fermi Gamma-ray Burst Monitor trigger 728740048/240204491 is not a GRB"
},
"message_text": "C. Malacaria (ISSI) reports on behalf of the Fermi Gamma-ray Burst Monitor Team:\n\nThe Fermi Gamma-ray Burst Monitor (GBM) trigger 728740048/240204491 at 11:47:23.81 UT on 04 February 2024, tentatively classified as a GRB, is in fact not due to a GRB. This trigger is likely due to a solar flare.\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35675.",
"published": "2024-02-05T14:55:26.671852Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-05T14:55:26.671961Z",
"modified": "2024-02-05T14:55:26.681896Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5969,
"topic": "gcn.circular",
"uuid": "890bddcd-627a-4c0d-932b-bca0b727c135",
"title": "IceCube-240204A: Upper limits from a search for additional neutrino events in IceCube",
"submitter": "Hop gcn.circular",
"authors": "Jessie Thwaites at IceCube/U Wisc-Madison <thwaites@wisc.edu>",
"data": {
"date": "24/02/05 17:33:02 GMT",
"from": "Jessie Thwaites at IceCube/U Wisc-Madison <thwaites@wisc.edu>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35676"
},
"title": "GCN CIRCULAR",
"number": "35676",
"subject": "IceCube-240204A: Upper limits from a search for additional neutrino events in IceCube"
},
"message_text": "The IceCube Collaboration (http://icecube.wisc.edu/) reports:\n\nIceCube has performed a search [1] for additional track-like muon neutrino events arriving from the direction of IceCube-240204A (https://gcn.nasa.gov/circulars/35665) in a time range of 1000 seconds centered on the alert event time (2024-02-04 09:00:40.440 UTC to 2024-02-04 09:17:20.440 UTC) during which IceCube was collecting good quality data. Excluding the event that prompted the alert, zero track-like events are found within the 90% containment region of IceCube-240204A. The IceCube sensitivity to neutrino point sources with an E^-2.5 spectrum (E^2 dN/dE at 1 TeV) within the locations spanned by the 90% spatial containment region of IceCube-240204A is 1.3e-01 GeV cm^-2 in a 1000 second time window. 90% of events IceCube would detect from a source at this declination with an E^-2.5 spectrum have energies in the approximate energy range between 2e+02 GeV and 1e+05 GeV.\n\nA subsequent search was performed including 2 days of data centered on the alert event time (2024-02-03 09:09:00.440 UTC to 2024-02-05 09:09:00.440 UTC). In this case, we report a p-value of 1.00, consistent with no significant excess of track events. The IceCube sensitivity to neutrino point sources with an E^-2.5 spectrum (E^2 dN/dE at 1 TeV) within the locations spanned by the 90% spatial containment region of IceCube-240204A is 1.5e-01 GeV cm^-2 in a 2 day time window.\n\nThe IceCube Neutrino Observatory is a cubic-kilometer neutrino detector operating at the geographic South Pole, Antarctica. The IceCube realtime alert point of contact can be reached at roc@icecube.wisc.edu.\n\n[1] IceCube Collaboration, R. Abbasi et al., ApJ 910 4 (2021)\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35676.",
"published": "2024-02-05T17:33:17.486723Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-05T17:33:17.486743Z",
"modified": "2024-02-05T17:33:17.495292Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5958,
"topic": "gcn.circular",
"uuid": "704737d8-88f8-46fb-9aba-c4b7d4bb2f0c",
"title": "GRB 240204A: Swift detection of a burst",
"submitter": "Hop gcn.circular",
"authors": "K.L. Page at U Leicester <klp5@leicester.ac.uk>",
"data": {
"date": "24/02/04 15:33:54 GMT",
"from": "K.L. Page at U Leicester <klp5@leicester.ac.uk>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35666"
},
"title": "GCN CIRCULAR",
"number": "35666",
"subject": "GRB 240204A: Swift detection of a burst"
},
"message_text": "\nS. B. Cenko (GSFC), C. Gronwall (PSU), J.D. Gropp (PSU),\nJ. A. Kennea (PSU) and K. L. Page (U Leicester) report on behalf of\nthe Neil Gehrels Swift Observatory Team:\n\nSwift/BAT triggered on the Fermi/GBM reported long GRB 240204A (GCN #35664).\nDue to a telemetry outage, no realtime BAT data are available.\n\nThe XRT began observing the field at 15:10:12.2 UT, 154 seconds\nafter the Fermi/GBM trigger. Using promptly downlinked data we find an\nuncatalogued X-ray source located at RA, Dec 104.18190, 1.02767 which\nis equivalent to:\n RA(J2000) = 06h 56m 43.66s\n Dec(J2000) = +01d 01' 39.6\"\nwith an uncertainty of 4.0 arcseconds (radius, 90% containment). This\nposition may be improved as more data are received; the latest position\nis available at https://www.swift.ac.uk/sper.\n\nA power-law fit to a spectrum formed from promptly downlinked event\ndata gives a column density consistent with the Galactic value of 6.45\nx 10^21 cm^-2 (Willingale et al. 2013).\n\nDue to a telemetry outage, there are no UVOT data available at this time.\n\nBurst Advocate for this burst is S. B. Cenko (brad.cenko AT nasa.gov).\nPlease contact the BA by email if you require additional information\nregarding Swift followup of this burst. In extremely urgent cases, after\ntrying the Burst Advocate, you can contact the Swift PI by phone (see\nSwift TOO web site for information: http://www.swift.psu.edu/)\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35666.",
"published": "2024-02-04T15:34:00.848204Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-04T15:34:00.848224Z",
"modified": "2024-02-04T15:34:00.854505Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5960,
"topic": "gcn.circular",
"uuid": "610d162e-cc61-413e-bd09-e39d1adf806f",
"title": "Fermi trigger No 728706420: Global MASTER-Net observations report",
"submitter": "Hop gcn.circular",
"authors": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"data": {
"date": "24/02/04 16:15:36 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35667"
},
"title": "GCN CIRCULAR",
"number": "35667",
"subject": "Fermi trigger No 728706420: Global MASTER-Net observations report"
},
"message_text": "V. Lipunov, V.Kornilov, E. Gorbovskoy, K. Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, V.Senik, D. Vlasenko,\nG.Antipov, D.Zimnukhov, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D. Cheryasov, Ya.Kechin, Yu.Tselik, A. Sosnovskij\n(Lomonosov Moscow State University, SAI, Physics Department),\n\nR. Podesta, C.Lopez, F. Podesta, C.Francile\n(Observatorio Astronomico Felix Aguilar OAFA),\n\nR. Rebolo, M. Serra\n(The Instituto de Astrofisica de Canarias),\n\nD. Buckley\n(South African Astronomical Observatory),\n\nO.A. Gress, N.M. Budnev, O.Ershova\n(Irkutsk State University, API),\n\nL.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez,\nA.R.Corella, L.H.Rodriguez\n(INAOE, Guillermo Haro Astrophysics Observatory),\n\nA. Tlatov, D. Dormidontov\n(Kislovodsk Solar Station of the Pulkovo Observatory),\n\nV. Yurkov, A. Gabovich\n(Blagoveschensk Educational State University)\n\nMASTER-Kislovodsk robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the Fermi GRB240204.10 (trigger No 728706420,07h 55m 07.92s , +03d 07m 01.2s, R).57) errorbox 45762 sec after notice time and 45799 sec after trigger time at 2024-02-04 15:10:14 UT, with upper limit up to 14.2 mag. Observations started at twilight. The observations began at zenith distance = 73 deg. The sun altitude is -8.5 deg.\n\nMASTER-Tunka robotic telescope located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the Fermi GRB240204.10 errorbox 45869 sec after notice time and 45906 sec after trigger time at 2024-02-04 15:12:01 UT, with upper limit up to 20.8 mag. The observations began at zenith distance = 54 deg. The sun altitude is -46.9 deg.\n\nThe galactic latitude b = 16 deg., longitude l = 218 deg.\n\n\nReal time updated cover map and OT discovered available here:\nhttps://master.sai.msu.ru/site/master2/observ.php?id#70974\n\nWe obtain a following upper limits.\n\nTmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n 45815 | 2024-02-04 15:10:14 | MASTER-Kislovodsk | (07h 03m 31.74s , -03d 55m 49.9s) | C | 30 | 13.8 |\n 45880 | 2024-02-04 15:11:14 | MASTER-Kislovodsk | (07h 03m 37.97s , -03d 55m 50.8s) | C | 40 | 14.2 |\n 45935 | 2024-02-04 15:12:01 | MASTER-Tunka | (07h 00m 35.55s , -03d 26m 43.3s) | C | 55 | 18.5 |\n 45990 | 2024-02-04 15:12:01 | MASTER-Tunka | (07h 00m 35.55s , -03d 26m 43.2s) | C | 165 | 18.9 | Coadd\n 45952 | 2024-02-04 15:12:16 | MASTER-Kislovodsk | (07h 03m 35.18s , -03d 54m 09.2s) | C | 60 | 14.2 |\n 45993 | 2024-02-04 15:13:00 | MASTER-Tunka | (07h 00m 35.63s , -03d 26m 41.6s) | C | 55 | 18.5 |\n 46037 | 2024-02-04 15:13:37 | MASTER-Kislovodsk | (07h 03m 35.33s , -03d 55m 45.7s) | C | 70 | 14.1 |\n 46110 | 2024-02-04 15:14:56 | MASTER-Tunka | (07h 00m 35.76s , -03d 26m 38.0s) | C | 55 | 18.5 |\n 46168 | 2024-02-04 15:15:55 | MASTER-Tunka | (07h 00m 35.83s , -03d 26m 36.1s) | C | 55 | 18.5 |\n 46285 | 2024-02-04 15:17:51 | MASTER-Tunka | (07h 00m 35.93s , -03d 26m 32.6s) | C | 55 | 18.5 |\n 46343 | 2024-02-04 15:18:50 | MASTER-Tunka | (07h 00m 36.01s , -03d 26m 30.8s) | C | 55 | 18.5 |\n 46401 | 2024-02-04 15:19:48 | MASTER-Tunka | (07h 00m 36.09s , -03d 26m 28.8s) | C | 55 | 18.5 |\n 46460 | 2024-02-04 15:20:46 | MASTER-Tunka | (07h 00m 36.17s , -03d 26m 27.1s) | C | 55 | 18.5 |\n 46528 | 2024-02-04 15:21:52 | MASTER-Tunka | (06h 45m 43.71s , -03d 13m 03.5s) | C | 60 | 19.9 |\n 46588 | 2024-02-04 15:21:52 | MASTER-Tunka | (06h 45m 43.71s , -03d 13m 03.5s) | C | 180 | 20.4 | Coadd\n 46798 | 2024-02-04 15:21:52 | MASTER-Tunka | (06h 45m 43.71s , -03d 13m 03.5s) | C | 600 | 20.8 | Coadd\n 46591 | 2024-02-04 15:22:56 | MASTER-Tunka | (06h 45m 43.78s , -03d 13m 01.1s) | C | 60 | 19.9 |\n 46654 | 2024-02-04 15:23:59 | MASTER-Tunka | (06h 45m 43.83s , -03d 12m 59.8s) | C | 60 | 19.9 |\n 46718 | 2024-02-04 15:25:02 | MASTER-Tunka | (06h 45m 43.88s , -03d 12m 57.8s) | C | 60 | 19.9 |\n 46778 | 2024-02-04 15:25:02 | MASTER-Tunka | (06h 45m 43.88s , -03d 12m 57.9s) | C | 180 | 20.4 | Coadd\n 46844 | 2024-02-04 15:27:09 | MASTER-Tunka | (06h 45m 44.01s , -03d 12m 54.0s) | C | 60 | 19.8 |\n 46907 | 2024-02-04 15:28:12 | MASTER-Tunka | (06h 45m 44.05s , -03d 12m 52.5s) | C | 60 | 19.9 |\n 46971 | 2024-02-04 15:29:15 | MASTER-Tunka | (06h 45m 44.14s , -03d 12m 50.2s) | C | 60 | 19.9 |\n 47031 | 2024-02-04 15:29:15 | MASTER-Tunka | (06h 45m 44.14s , -03d 12m 50.2s) | C | 180 | 20.4 | Coadd\n 47097 | 2024-02-04 15:31:22 | MASTER-Tunka | (06h 45m 44.31s , -03d 12m 46.5s) | C | 60 | 19.8 |\n 47165 | 2024-02-04 15:32:30 | MASTER-Tunka | (06h 45m 49.39s , -03d 12m 38.6s) | C | 60 | 19.9 |\n 47229 | 2024-02-04 15:33:33 | MASTER-Tunka | (06h 45m 49.44s , -03d 12m 36.0s) | C | 60 | 20.0 |\n 47289 | 2024-02-04 15:33:33 | MASTER-Tunka | (06h 45m 49.44s , -03d 12m 36.0s) | C | 180 | 20.5 | Coadd\n 47292 | 2024-02-04 15:34:37 | MASTER-Tunka | (06h 45m 49.50s , -03d 12m 34.2s) | C | 60 | 20.0 |\n 47355 | 2024-02-04 15:35:40 | MASTER-Tunka | (06h 45m 49.57s , -03d 12m 32.2s) | C | 60 | 20.0 |\n 47418 | 2024-02-04 15:36:43 | MASTER-Tunka | (06h 45m 49.60s , -03d 12m 30.7s) | C | 60 | 20.0 |\n 47478 | 2024-02-04 15:36:43 | MASTER-Tunka | (06h 45m 49.61s , -03d 12m 30.8s) | C | 180 | 20.5 | Coadd\n 47482 | 2024-02-04 15:37:46 | MASTER-Tunka | (06h 45m 49.68s , -03d 12m 29.1s) | C | 60 | 20.1 |\n 47545 | 2024-02-04 15:38:50 | MASTER-Tunka | (06h 45m 49.73s , -03d 12m 27.3s) | C | 60 | 20.0 |\n 47608 | 2024-02-04 15:39:53 | MASTER-Tunka | (06h 45m 49.77s , -03d 12m 25.3s) | C | 60 | 20.0 |\n 47672 | 2024-02-04 15:40:56 | MASTER-Tunka | (06h 45m 49.82s , -03d 12m 23.8s) | C | 60 | 20.0 |\n 47735 | 2024-02-04 15:41:59 | MASTER-Tunka | (06h 45m 49.86s , -03d 12m 21.8s) | C | 60 | 20.0 |\nFilter C is a clear (unfiltred) band.\n\n\nThe observation and reduction will continue.\nThe message may be cited.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35667.",
"published": "2024-02-04T16:15:46.976053Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-04T16:15:46.976075Z",
"modified": "2024-02-04T16:15:46.984850Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6585,
"topic": "gcn.circular",
"uuid": "ab422b57-8457-484c-ac56-6df1e11b96c1",
"title": "GRB 240414A: Swift/UVOT Detection",
"submitter": "Hop gcn.circular",
"authors": "Mike Siegel at PSU/Swift MOC <mhs18@psu.edu>",
"data": {
"date": "24/04/15 13:29:21 GMT",
"from": "Mike Siegel at PSU/Swift MOC <mhs18@psu.edu>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/36115"
},
"title": "GCN CIRCULAR",
"number": "36115",
"subject": "GRB 240414A: Swift/UVOT Detection"
},
"message_text": "M. H. Siegel (PSU) and R. Caputo (GSFC) report on behalf of the\nSwift/UVOT team:\n\nThe Swift/UVOT began settled observations of the field of GRB 240414A\n9754s after the BAT trigger (Caputo et al., GCN Circ. 36083). A source consistent\nwith the XRT position (Obsorne et al., GCN Circ. 36102) and the previously reported\noptical counterpart (Schneider et al., GCN Circ. 36084, Aryan et al., GCN Circ. 36094,\nDutton et al., GCN Circ. 36097, Xu et al., GCN Circ. 36105, Pankov et al., GCN Circ. 36113)\nis detected in the initial UVOT exposures.\n\nThe preliminary UVOT position is:\n RA (J2000) = 12:19:08.09 = 184.78370 (deg.)\n Dec (J2000) = +56:44:28.6 = 56.74127 (deg.)\nwith an estimated uncertainty of 0.4 arc sec. (radius, 90% confidence).\n\nPreliminary 3-sigma upper limits using the UVOT photometric system\n(Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the initial exposures are:\n\nFilter T_start(s) T_stop(s) Exp(s) Mag\nb 9754 10628 853 19.23+/-0.07\nuvm2 15403 16303 885 >20.33\nu 22136 22862 707 19.29+/-0.11\nv 62457 62769 302 >19.60\nuvw1 16310 22129 1262 20.04+/-0.18\nuvw2 26698 27465 755 >20.54\n\nThe magnitudes in the table are not corrected for the Galactic extinction\ndue to the reddening of E(B-V) = 0.02 in the direction of the burst\n(Schlegel et al. 1998).\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/36115.",
"published": "2024-04-15T13:29:31.547032Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-04-15T13:29:31.547043Z",
"modified": "2024-04-15T13:29:31.768997Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5964,
"topic": "gcn.circular",
"uuid": "e03c0029-8a95-488e-a74f-c5eb024e25a2",
"title": "GRB 240204A: Enhanced Swift-XRT position",
"submitter": "Hop gcn.circular",
"authors": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
"data": {
"date": "24/02/04 19:44:55 GMT",
"from": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35671"
},
"title": "GCN CIRCULAR",
"number": "35671",
"subject": "GRB 240204A: Enhanced Swift-XRT position"
},
"message_text": "A.P. Beardmore, P.A. Evans, M.R. Goad and J.P. Osborne (U. Leicester)\nreport on behalf of the Swift-XRT team.\n\nUsing 1322 s of XRT Photon Counting mode data and 2 UVOT\nimages for GRB 240204A, we find an astrometrically corrected X-ray\nposition (using the XRT-UVOT alignment and matching UVOT field sources\nto the USNO-B1 catalogue): RA, Dec = 104.18139, +1.02693 which is equivalent\nto:\n\nRA (J2000): 06h 56m 43.53s\nDec (J2000): +01d 01' 36.9\"\n\nwith an uncertainty of 2.5 arcsec (radius, 90% confidence).\n\nThis position may be improved as more data are received. The latest\nposition can be viewed at http://www.swift.ac.uk/xrt_positions. Position\nenhancement is described by Goad et al. (2007, A&A, 476, 1401) and Evans\net al. (2009, MNRAS, 397, 1177).\n\nThis circular was automatically generated, and is an official product of the\nSwift-XRT team.\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35671.",
"published": "2024-02-04T19:45:06.900778Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-04T19:45:06.900809Z",
"modified": "2024-02-04T19:45:06.906935Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5965,
"topic": "gcn.circular",
"uuid": "b7831d0d-2a70-4eac-812a-8ff5e00638cf",
"title": "GRB 240204A: Montarrenti Observatory optical observations",
"submitter": "Hop gcn.circular",
"authors": "Simone Leonini at Montarrenti Observatory (Siena, Italy) <s.leonini@iol.it>",
"data": {
"date": "24/02/04 23:54:13 GMT",
"from": "Simone Leonini at Montarrenti Observatory (Siena, Italy) <s.leonini@iol.it>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35672"
},
"title": "GCN CIRCULAR",
"number": "35672",
"subject": "GRB 240204A: Montarrenti Observatory optical observations"
},
"message_text": "S. Leonini, M. Conti, P. Rosi, L.M. Tinjaca Ramirez, L. Bellizzi (Montarrenti Observatory, Siena, Italy, part of UAI/SSV-GRB section), M.G. Dainotti (National Astronomical Observatory of Japan), Y. Niino (Tokyo University, Institute of Astronomy), K. Kalinowski (Aarhus University, Department of Physics and Astronomy) and B. De Simone (Universita' degli Studi Di Salerno) report:\n\nWe observed the field of GRB 240204A (Swift triggered on the Fermi/GBM, GCN 35664; Cenko et al., GCN 35666; Pozanenko et al., GCN 35670) with the automated and remoted 0.53m Ritchey-Chretien telescope at Montarrenti Observatory (Siena, Italy, IAU code C88).\n\nThe observations were started under good weather conditions at 2024-02-04 18:58:44 UT (approximately 4 hours after burst) stacking 30x40s Rc-band CCD images.\n\nThe OT was detected at the following position:\n\nRA (J2000.0) 06h 56m 43.39s +/-0.11 \nDecl. (J2000.0) +01° 01' 38.5\" +/-0.14\n\nPreliminary photometry was obtained using nearby PanSTARRS stars as follows: \n\n MJD Filter Mag. Err.\n60345.30597 Rc 21.02 +/-0.21\n\nMagnitudes were converted using Lupton (2005) equations and were not corrected for galactic dust extinction.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35672.",
"published": "2024-02-04T23:54:24.827739Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-04T23:54:24.827761Z",
"modified": "2024-02-04T23:54:24.833595Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5983,
"topic": "gcn.circular",
"uuid": "dddc7532-e065-4827-85a9-de0b894d5049",
"title": "GRB 240204A : OHP/T193/T120 optical afterglow fading detection",
"submitter": "Hop gcn.circular",
"authors": "Christophe Adami at LAM <christophe.adami@lam.fr>",
"data": {
"date": "24/02/06 05:05:24 GMT",
"from": "Christophe Adami at LAM <christophe.adami@lam.fr>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35690"
},
"title": "GCN CIRCULAR",
"number": "35690",
"subject": "GRB 240204A : OHP/T193/T120 optical afterglow fading detection"
},
"message_text": "C. Adami, D. Russeil, H. LeCoroller (Pythéas/LAM), E. Abdo, M. Carta, T. Chehab, M. Colliaux, A. Gharibi-Ziarati, E. Pouyer, \nA. Jacquet, F. Malaval, S. Aftis (AMU), J. Balcaen, Y. Degot-Longhi, (OHP/Pythéas), E. Le Floc'h, D. Götz, F. Schüssler (CEA \nParis-Saclay), B. Schneider (MIT), S. Basa (Pytheas/OHP/LAM), A. Saccardi, S. D. Vergani (GEPI, Obs. de Paris),\nM. Dennefeld (IAP), report on behalf of a larger collaboration\n\nWe observed the field of GRB 240204A (Fermi-GBM team GCN 35664, Cenko et al. GCN 35666, Pozanenko et al. GCN 35670, \nLeonini et al. GCN 35672, Pérez-Fournon et al. GCN 35673, Dainotti et al. GCN 35677, Bochenek et al. GCN 35678) using the \nT193cm telescope equiped with the MISTRAL instrument and with the T120cm telescope at Observatoire de Haute-Provence \n(France). On the night of 04 February 2024, we made 9 sets of observations with MISTRAL in r band (30min each) and two sets \nof observations with the T120 telescope (V and i bands: 135min each). On the night of 05 February 2024, we made an \nadditional single set of observations with MISTRAL in r band during 97.5min. Details are given in the table below.\n\nAll magnitudes were calibrated against the PanStarrs catalog (mean Kron magnitudes), extracted in a radius of 1arcmin around \nthe GRB position. Magnitudes were not corrected for galactic extinction.\n\nOur results in r-band show a fading behaviour of typically 0.09+/-0.03 mag/hour over the 10 first hours and of 0.06+/-0.01 mag/hours over the 31 first hours.\n\n-----------------------------------------------\nT-T0 (in hours) | mag | filter | Telescope\n-----------------------------------------------\n+4.09 | 21.82+/-0.21 | r | MISTRAL@T193\n+4.70 | 21.88+/-0.15 | r | MISTRAL@T193\n+5.29 | 21.86+/-0.11 | r | MISTRAL@T193\n+5.89 | 21.92+/-0.12 | r | MISTRAL@T193\n+6.64 | 21.77+/-0.10 | r | MISTRAL@T193\n+7.22 | 21.98+/-0.10 | r | MISTRAL@T193\n+7.99 | 21.88+/-0.12 | r | MISTRAL@T193\n+8.69 | 22.10+/-0.13 | r | MISTRAL@T193\n+9.32 | 22.51+/-0.31 | r | MISTRAL@T193\n+30.72 | 23.37+/-0.31 | r | MISTRAL@T193\n+6.02 | 22.69+/-0.17 | g | T120\n+6.02 | 20.33+/-0.13 | i | T120\n\nWe acknowledge OHP staff for its excellent support during the AMU M2-Physics 2024 observationnal internship. This work \nreceived support from the French government under the France2030 investment plan, as part of the initiative dâExcellence \ndâAix-Marseille Universit´e- A*MIDEX (AMX-19-IET-008). We were also supported by the IPhU Graduate School program at \nAix-Marseille University. We also acknowledge the support by Master Erasmus Mundus Europhotonics \n(599098-EPP-1-2018-1-FR-EPPKA1-JMD-MOB) financed by EACEA (European Education and Culture Executive Agency). \n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35690.",
"published": "2024-02-06T05:05:39.968702Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-06T05:05:39.968718Z",
"modified": "2024-02-06T05:05:39.976410Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5984,
"topic": "gcn.circular",
"uuid": "2ff38dc9-5840-4455-86df-fadd1d048ac1",
"title": "GRB 240204A: Mondy optical afterglow observations",
"submitter": "Hop gcn.circular",
"authors": "Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>",
"data": {
"date": "24/02/06 07:50:17 GMT",
"from": "Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35691"
},
"title": "GCN CIRCULAR",
"number": "35691",
"subject": "GRB 240204A: Mondy optical afterglow observations"
},
"message_text": "S. Belkin (IKI, HSE), N. Pankov (HSE, IKI), E. Klunko (ISTP), A. Pozanenko (IKI) report on behalf of IKI-GRB-FuN:\n\nWe observed the GRB 240204A (Fermi-GBM team GCN 35664, Cenko et al. GCN 35666, Pozanenko et al. GCN 35670, Leonini et al. GCN 35672, Pérez-Fournon et al. GCN 35673, Dainotti et al. GCN 35677, Bochenek et al. GCN 35678; Adami et al. GCN 35690) with AZT-33IK telescope of Mondy observatory starting on 2024-02-04 (UT) 16:05:26 and 2024-02-05 (UT) 13:10:09. Preliminary photometry of the afterglow based on USNO-B1.0 (R2) nearby stars is following\n\nDate UT start t-T0 Filter Exp. OT Err. UL(3sigma)\n (mid, days) (s)\n\n2024-02-04 16:05:26 0.04292 R 480 19.90 0.10 21.9\n2024-02-04 16:13:26 0.04847 R 480 20.01 0.11 21.8\n2024-02-04 16:21:26 0.05403 R 480 19.93 0.10 21.9\n2024-02-04 16:29:27 0.05959 R 480 19.85 0.09 21.8\n2024-02-04 17:31:00 0.11345 R 2400 20.55 0.10 22.5\n2024-02-05 13:10:09 0.96772 R 8400 22.4 0.2 23.1\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35691.",
"published": "2024-02-06T07:50:32.703057Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-06T07:50:32.703072Z",
"modified": "2024-02-06T07:50:32.709891Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5966,
"topic": "gcn.circular",
"uuid": "4cab4944-9f3e-42e6-85dd-c388c428d2eb",
"title": "GRB 240204A: optical afterglow detection with LCOGT 1m telescopes at Sutherland and Teide Observatories",
"submitter": "Hop gcn.circular",
"authors": "Ismael Perez-Fournon at Instituto de Astrofisica de Canarias <ipf@iac.es>",
"data": {
"date": "24/02/05 02:47:44 GMT",
"from": "Ismael Perez-Fournon at Instituto de Astrofisica de Canarias <ipf@iac.es>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35673"
},
"title": "GCN CIRCULAR",
"number": "35673",
"subject": "GRB 240204A: optical afterglow detection with LCOGT 1m telescopes at Sutherland and Teide Observatories"
},
"message_text": "I. Pérez-Fournon and F. Poidevin (IAC and ULL) report\n\nWe observed the field of GRB 240204A, detected by FERMI GBM (Fermi GBM team, GCN 35664) and by Swift XRT (Cenko et al., GCN 35666), centred at the enhanced Swift-XRT position reported by Beardmore et al. (GCN 35671) with LCOGT 1m telescopes at Sutherland and Teide Observatories. We detect a source, not visible in PanSTARRS imaging, at the position RA (J2000) = 06:56:43.367, Dec (J2000) = +01:01:38.06 (+/- 0.5\" in both coordinates). We measure the following magnitudes in SDSS filters: r' = 21.10 +/- 0.15 on 2024-02-04 20:37:30 UT (Sutherland Observatory) and i' = 20.79 +/- 0.15 on 2024-02-04 21:29:56 UT (Teide Observatory), calibrated using the Gaia DR3 synthetic photometry catalog generated from the Gaia BP/RP mean spectra (Gaia Collaboration, 2022), uncorrected for interstellar extinction.\n\nThe reported position agrees within the errors with the enhanced Swift-XRT position and with the positions of the optical source detected by Pozanenko et al. (GCN 35670) and Leonini et al. (GCN 35672). \n\nThe flux is clearly decreasing in the red bands.\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35673.",
"published": "2024-02-05T02:47:56.125280Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-05T02:47:56.125301Z",
"modified": "2024-02-05T02:47:56.132807Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6586,
"topic": "gcn.circular",
"uuid": "07c97c0c-d18b-4999-9f52-a69f1af9941d",
"title": "IceCube-240412A: Upper limits from a search for additional neutrino events in IceCube",
"submitter": "Hop gcn.circular",
"authors": "Jessie Thwaites at IceCube/U Wisc-Madison <thwaites@wisc.edu>",
"data": {
"date": "24/04/15 13:43:01 GMT",
"from": "Jessie Thwaites at IceCube/U Wisc-Madison <thwaites@wisc.edu>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/36116"
},
"title": "GCN CIRCULAR",
"number": "36116",
"subject": "IceCube-240412A: Upper limits from a search for additional neutrino events in IceCube"
},
"message_text": "The IceCube Collaboration (http://icecube.wisc.edu/) reports:\n\nIceCube has performed a search [1] for additional track-like muon neutrino events arriving from the direction of IceCube-240412A (https://gcn.nasa.gov/circulars/36070) in a time range of 1000 seconds centered on the alert event time (2024-04-12 05:25:26.890 UTC to 2024-04-12 05:42:06.890 UTC) during which IceCube was collecting good quality data. Excluding the event that prompted the alert, zero track-like events are found within the 90% containment region of IceCube-240412A. The IceCube sensitivity to neutrino point sources with an E^-2.5 spectrum (E^2 dN/dE at 1 TeV) within the locations spanned by the 90% spatial containment region of IceCube-240412A ranges from 1.3e-01 to 1.4e-01 GeV cm^-2 in a 1000 second time window. 90% of events IceCube would detect from a source at this declination with an E^-2.5 spectrum have energies in the approximate energy range between 3e+02 GeV and 1e+05 GeV.\n\nA subsequent search was performed including 2 days of data centered on the alert event time (2024-04-11 05:33:46.890 UTC to 2024-04-13 05:33:46.890 UTC). In this case, we report a p-value of 0.02, consistent with no significant excess of track events. The IceCube sensitivity to neutrino point sources with an E^-2.5 spectrum (E^2 dN/dE at 1 TeV) within the locations spanned by the 90% spatial containment region of IceCube-240412A is 1.5e-01 GeV cm^-2 in a 2 day time window.\n\nThe IceCube Neutrino Observatory is a cubic-kilometer neutrino detector operating at the geographic South Pole, Antarctica. The IceCube realtime alert point of contact can be reached at roc@icecube.wisc.edu.\n\n[1] IceCube Collaboration, R. Abbasi et al., ApJ 910 4 (2021)\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/36116.",
"published": "2024-04-15T13:43:17.218655Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-04-15T13:43:17.218668Z",
"modified": "2024-04-15T13:43:17.226154Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6587,
"topic": "gcn.circular",
"uuid": "b4d5cf60-28a9-438c-8854-36788cecc987",
"title": "GRB 240414A: Photometric observation from 2.2m CAHA",
"submitter": "Hop gcn.circular",
"authors": "Antonio de Ugarte Postigo at OCA <deugarte@oca.eu>",
"data": {
"date": "24/04/15 15:11:19 GMT",
"from": "Antonio de Ugarte Postigo at OCA <deugarte@oca.eu>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/36117"
},
"title": "GCN CIRCULAR",
"number": "36117",
"subject": "GRB 240414A: Photometric observation from 2.2m CAHA"
},
"message_text": "A. de Ugarte Postigo (CNRS, OCA, LAM), J.F. Agui Fernandez (CAHA), C.C. Thoene (ASU-CAS), Y. Calatayud-Borras and S. Gongora (both CAHA) report:\n\nWe observed the field of GRB 240414A (Caputo et al. GCN 36083) to obtain photometry of the optical afterglow (Schneider et al. GCN 36084, Dutton et al. GCN 36097, Turpin et al. GCN 36101, Pankov et al. GCN 36113, Siegel et al. GCN 36115) at a redshift of 1.833 (Adami et al. GCN 36085, de Ugarte Postigo et al. GCN 36087). The observation was performed with CAFOS, mounted on the 2.2m Calar Alto Telescope, in Almeria (Spain). Our imaging started at 2024-04-14T23:28:42 UT (21.14 hr after the burst onset) and consisted of 5x200s exposures in each of the g, r, and i bands\n\nThe afterglow is well detected in all three bands, and had decayed to r(AB) = 22.11+/-0.18 mag, as compared to field stars of the SDSS. Further observations are scheduled.\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/36117.",
"published": "2024-04-15T15:11:36.805435Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-04-15T15:11:36.805450Z",
"modified": "2024-04-15T15:11:36.813679Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6588,
"topic": "gcn.circular",
"uuid": "1e2c6fbd-67a6-4601-b311-05932c452b4a",
"title": "GRB 240415A: Mondy optical transient detection",
"submitter": "Hop gcn.circular",
"authors": "Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>",
"data": {
"date": "24/04/15 16:15:54 GMT",
"from": "Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/36118"
},
"title": "GCN CIRCULAR",
"number": "36118",
"subject": "GRB 240415A: Mondy optical transient detection"
},
"message_text": "N. Pankov (HSE, IKI), A. Pozanenko (IKI), E. Klunko (ISTP), S. Belkin (IKI) report on behalf of GRB-IKI-FuN:\n\nWe observed the field of GRB 240415A (Fermi GBM team, GCN 36107; Moss et al., GCN 36108, Evans et al., GCN 36109) with 1.5-meter AZT-33IK telescope of Sayan observatory at Mondy. The observations were started on 2024-04-15 (UT) 14:33:22, i.e. ~8 hr since the Fermi GBM trigger. We took 30 frames 120 s each in the R-filter. We detect a possible optical counterpart in the stacked image at coordinates of (J2000) 08:36:45.26 73:08:47.6 with uncertainties of 0.4 arcsec in both coordinates.\nPreliminary photometry of the optical source is following:\n\nDate UT_start MJD Filter Exp. OT err UL(3sigma)\n (mid, days) (s)\n2024-04-15 14:33:22 60415.627345 R 44*120 18.84 0.08 21.9\n\nThe magnitudes were calibrated using nearby USNO-B1.0 stars.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/36118.",
"published": "2024-04-15T16:16:10.548896Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-04-15T16:16:10.548908Z",
"modified": "2024-04-15T16:16:10.554687Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5970,
"topic": "gcn.circular",
"uuid": "c0447c1d-1bb2-451b-859c-a5855909e0e5",
"title": "GRB 240204A: Osservatorio Astronomico Nastro Verde upper limit",
"submitter": "Hop gcn.circular",
"authors": "Nello Ruocco at Osservatorio Nastro Verde - Sorrento (Naples) - Italy - MPC Code C82 <osservatorionastroverde@gmail.com>",
"data": {
"date": "24/02/05 18:30:30 GMT",
"from": "Nello Ruocco at Osservatorio Nastro Verde - Sorrento (Naples) - Italy - MPC Code C82 <osservatorionastroverde@gmail.com>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35677"
},
"title": "GCN CIRCULAR",
"number": "35677",
"subject": "GRB 240204A: Osservatorio Astronomico Nastro Verde upper limit"
},
"message_text": "Nello Ruocco at Osservatorio Nastro Verde - Sorrento (Naples) - Italy\nin a large collaboration with:\nM.G. Dainotti (National Astronomical Observatory of Japan),\nY. Niino (Tokyo University, Institute of Astronomy),\nK. Kalinowski (Aarhus University, Department of Physics and Astronomy),\nB. De Simone (Universita' degli Studi Di Salerno)\nreport:\n\nWe image the field of GRB 240204A (Swift triggered on the Fermi/GBM, GCN 35664; Cenko et al., GCN 35666; Pozanenko et al., GCN 35670)\nwith telescope of Nastro Verde Observatory - Sorrento (Naples), Italy. Member of:\nAAVSO - American Association of Variable Star Observers.\nUAI/SSV - Unione Astrofili Italiani/sezione stelle variabili.\nAstroCampania Associazione\n\nThe observations started at 18:16 UT of 2024/02/04, after about 3 hours after the GRB trigger, at the end of twilight\nwith principal telescope SC 0.35 f/10 with focal reduced + CCD Sbig ST10 XME\nI took 104 image of 60 sec each. All images are unfiltered, calibrated with masterdark and masterflat,stacked with Tycho Tracker and Astrometrica software\nWe have not detected any clearly visible sources, up to 20th magnitude with clear skies.\n Start T0+ End T0+ Rlim\n18:16:19 UT 21:15:19 UT 19.5\n\nWe did not found any optical counterpart in the error box of the XRTcandidate.\n\n\n\n\nMagnitudes were estimated with the Gaia DR2 cat. and\nare not corrected for galactic dust extinction.\n\n\n\nThe message may be cited.\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35677.",
"published": "2024-02-05T18:30:43.624106Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-05T18:30:43.624173Z",
"modified": "2024-02-05T18:30:43.631753Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5971,
"topic": "gcn.circular",
"uuid": "fdb3b470-f9db-4134-884b-f61652776998",
"title": "GRB 240204a: Liverpool Telescope optical afterglow detection",
"submitter": "Hop gcn.circular",
"authors": "A. Bochenek at Liverpool John Moores University <a.m.bochenek@2023.ljmu.ac.uk>",
"data": {
"date": "24/02/05 20:01:51 GMT",
"from": "A. Bochenek at Liverpool John Moores University <a.m.bochenek@2023.ljmu.ac.uk>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35678"
},
"title": "GCN CIRCULAR",
"number": "35678",
"subject": "GRB 240204a: Liverpool Telescope optical afterglow detection"
},
"message_text": "A. Bochenek, J. Wise, D. A. Perley (LJMU) report:\n \nWe observed the field of GRB 240204A (Fermi-GBM team, GCN 35664; Cenko et al., GCN 35666; Pozanenko et al., GCN 35670) with the IO:O optical camera on the 2m robotic Liverpool Telescope. We conducted two sets of observations, the first starting at 2024-02-04 22:39:16 UT (approx. 7.5h after the burst), and the second starting at 2024-02-04 23:57:25 UT (approx. 9h after the burst). Both consisted of 2x60s exposures in the SDSS g, r, i, and z filters. Conditions were generally good throughout.\n \nThe afterglow is detected in the i and z bands in both epochs, and in the r-band in the first epoch. We measure the following magnitudes:\n \nMJD Time since burst Filter Mag. (AB)\n60344.94386 7.52 hours g > 22.72 \n60344.94585 7.57 hours r 21.37 ± 0.20 \n60344.94783 7.62 hours i 20.98 ± 0.21\n60344.94981 7.66 hours z 20.74 ± 0.20 \n60344.99812 8.82 hours g > 22.29 \n60345.00012 8.87 hours r > 22.08 \n60345.00210 8.92 hours i 20.85 ± 0.12 \n60345.00408 8.97 hours z 20.34 ± 0.13 \n \nThe photometry was obtained using nearby PanSTARRS secondary standards and was not corrected for extinction.\n \nThe source was detected at a position consistent with previous detections.\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35678.",
"published": "2024-02-05T20:02:03.066351Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-05T20:02:03.066373Z",
"modified": "2024-02-05T20:02:03.073590Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6589,
"topic": "gcn.circular",
"uuid": "931f2369-9104-4915-9526-894352fefaa3",
"title": "Fermi GRB 240415A: Global MASTER-Net observations report",
"submitter": "Hop gcn.circular",
"authors": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"data": {
"date": "24/04/15 19:15:28 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/36119"
},
"title": "GCN CIRCULAR",
"number": "36119",
"subject": "Fermi GRB 240415A: Global MASTER-Net observations report"
},
"message_text": "V. Lipunov, V.Kornilov, E. Gorbovskoy, K. Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, V.Senik, D. Vlasenko,\nG.Antipov, D.Zimnukhov, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D. Cheryasov, Ya.Kechin, Yu.Tselik, A. Sosnovskij\n(Lomonosov Moscow State University, SAI, Physics Department),\n\nR. Podesta, C.Lopez, F. Podesta, C.Francile\n(Observatorio Astronomico Felix Aguilar OAFA),\n\nR. Rebolo, M. Serra\n(The Instituto de Astrofisica de Canarias),\n\nD. Buckley\n(South African Astronomical Observatory),\n\nO.A. Gress, N.M. Budnev, O.Ershova\n(Irkutsk State University, API),\n\nL.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez,\nA.R.Corella, L.H.Rodriguez\n(INAOE, Guillermo Haro Astrophysics Observatory),\n\nA. Tlatov, D. Dormidontov\n(Kislovodsk Solar Station of the Pulkovo Observatory),\n\nV. Yurkov, A. Gabovich\n(Blagoveschensk Educational State University)\n\nMASTER-Tavrida robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB 240415A ( Fermi GBM team, GCN 36107) errorbox 43102 sec after notice time and 43137 sec after trigger time at 2024-04-15 18:25:55 UT, with upper limit up to 18.7 mag. The observations began at zenith distance = 35 deg. The sun altitude is -20.0 deg.\n\nMASTER-Kislovodsk robotic telescope located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the Fermi GRB 240415A errorbox 43114 sec after notice time and 43149 sec after trigger time at 2024-04-15 18:26:07 UT, with upper limit up to 18.6 mag. The observations began at zenith distance = 38 deg. The sun altitude is -25.1 deg.\n\nThe galactic latitude b = 42 deg., longitude l = 120 deg.\n\n\nReal time updated cover map and OT discovered available here:\nhttps://master.sai.msu.ru/site/master2/observ.php?id$23215\n\nWe obtain a following upper limits.\n\nTmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n 43168 | 2024-04-15 18:25:55 | MASTER-Tavrida | (12h 41m 57.43s , +75d 02m 45.2s) | C | 60 | 18.3 |\n 43180 | 2024-04-15 18:26:07 | MASTER-Kislovodsk | (13h 58m 04.46s , +75d 29m 04.7s) | C | 60 | 17.6 |\n 43180 | 2024-04-15 18:26:07 | MASTER-Kislovodsk | (14h 14m 02.58s , +75d 02m 20.5s) | C | 60 | 18.5 |\n 43260 | 2024-04-15 18:27:27 | MASTER-Kislovodsk | (13h 22m 54.58s , +79d 18m 44.3s) | C | 60 | 17.8 |\n 43260 | 2024-04-15 18:27:27 | MASTER-Kislovodsk | (13h 44m 16.06s , +78d 51m 50.7s) | C | 60 | 18.5 |\n 43340 | 2024-04-15 18:28:47 | MASTER-Kislovodsk | (13h 17m 15.80s , +73d 35m 59.5s) | C | 60 | 17.8 |\n 43340 | 2024-04-15 18:28:47 | MASTER-Kislovodsk | (13h 31m 44.89s , +73d 10m 02.8s) | C | 60 | 18.5 |\n 43374 | 2024-04-15 18:29:21 | MASTER-Tavrida | (13h 24m 13.00s , +76d 57m 02.6s) | C | 60 | 18.4 |\n 43420 | 2024-04-15 18:30:07 | MASTER-Kislovodsk | (12h 51m 52.86s , +76d 57m 52.8s) | C | 60 | 18.3 |\n 43420 | 2024-04-15 18:30:07 | MASTER-Kislovodsk | (12h 33m 18.95s , +77d 23m 31.1s) | C | 60 | 17.5 |\n 43446 | 2024-04-15 18:30:33 | MASTER-Tavrida | (13h 56m 37.00s , +73d 10m 16.5s) | C | 60 | 18.3 |\n 43518 | 2024-04-15 18:31:45 | MASTER-Tavrida | (13h 21m 10.17s , +71d 15m 43.7s) | C | 60 | 18.4 |\n 43593 | 2024-04-15 18:33:00 | MASTER-Tavrida | (11h 42m 00.08s , +75d 01m 17.2s) | C | 60 | 18.5 |\n 43666 | 2024-04-15 18:34:13 | MASTER-Tavrida | (12h 33m 06.72s , +71d 13m 56.3s) | C | 60 | 18.6 |\n 43701 | 2024-04-15 18:34:48 | MASTER-Kislovodsk | (14h 44m 19.50s , +79d 16m 36.9s) | C | 60 | 17.6 |\n 43701 | 2024-04-15 18:34:48 | MASTER-Kislovodsk | (15h 05m 01.93s , +78d 48m 27.9s) | C | 60 | 18.4 |\n 43781 | 2024-04-15 18:36:08 | MASTER-Kislovodsk | (12h 55m 54.06s , +81d 11m 28.9s) | C | 60 | 17.8 |\n 43781 | 2024-04-15 18:36:08 | MASTER-Kislovodsk | (13h 21m 39.24s , +80d 44m 24.4s) | C | 60 | 18.4 |\n 43861 | 2024-04-15 18:37:28 | MASTER-Kislovodsk | (14h 51m 26.51s , +77d 23m 02.0s) | C | 60 | 17.5 |\n 43861 | 2024-04-15 18:37:28 | MASTER-Kislovodsk | (15h 09m 51.40s , +76d 55m 31.1s) | C | 60 | 18.2 |\n 43942 | 2024-04-15 18:38:49 | MASTER-Kislovodsk | (12h 23m 31.82s , +73d 36m 49.8s) | C | 60 | 17.9 |\n 43942 | 2024-04-15 18:38:49 | MASTER-Kislovodsk | (12h 38m 13.66s , +73d 11m 56.7s) | C | 60 | 18.6 |\n 43947 | 2024-04-15 18:38:54 | MASTER-Tavrida | (11h 40m 21.90s , +79d 27m 06.2s) | C | 60 | 18.5 |\n 44242 | 2024-04-15 18:43:49 | MASTER-Tavrida | (12h 41m 57.04s , +75d 02m 13.5s) | C | 60 | 18.6 |\n 44269 | 2024-04-15 18:44:16 | MASTER-Kislovodsk | (14h 14m 03.95s , +75d 02m 14.5s) | C | 60 | 18.2 |\n 44269 | 2024-04-15 18:44:16 | MASTER-Kislovodsk | (13h 57m 52.27s , +75d 28m 52.9s) | C | 60 | 17.5 |\n 44314 | 2024-04-15 18:45:01 | MASTER-Tavrida | (13h 13m 41.15s , +75d 02m 50.4s) | C | 60 | 18.6 |\n 44350 | 2024-04-15 18:45:37 | MASTER-Kislovodsk | (13h 44m 12.27s , +78d 52m 16.9s) | C | 60 | 18.1 |\n 44350 | 2024-04-15 18:45:37 | MASTER-Kislovodsk | (13h 22m 33.47s , +79d 19m 00.8s) | C | 60 | 17.5 |\n 44384 | 2024-04-15 18:46:11 | MASTER-Tavrida | (13h 24m 18.65s , +76d 58m 13.6s) | C | 60 | 18.5 |\n 44429 | 2024-04-15 18:46:57 | MASTER-Kislovodsk | (13h 16m 59.43s , +73d 35m 27.9s) | C | 60 | 17.5 |\n 44429 | 2024-04-15 18:46:57 | MASTER-Kislovodsk | (13h 31m 36.58s , +73d 09m 38.3s) | C | 60 | 18.3 |\n 44455 | 2024-04-15 18:47:22 | MASTER-Tavrida | (14h 00m 34.32s , +76d 57m 07.8s) | C | 60 | 18.3 |\n 44510 | 2024-04-15 18:48:17 | MASTER-Kislovodsk | (12h 33m 08.21s , +77d 25m 41.9s) | C | 60 | 17.4 |\n 44510 | 2024-04-15 18:48:17 | MASTER-Kislovodsk | (12h 51m 56.28s , +77d 00m 14.0s) | C | 60 | 18.2 |\n 44525 | 2024-04-15 18:48:33 | MASTER-Tavrida | (13h 56m 47.31s , +73d 10m 32.5s) | C | 60 | 18.4 |\n 44590 | 2024-04-15 18:49:37 | MASTER-Kislovodsk | (14h 21m 25.41s , +71d 41m 13.5s) | C | 60 | 17.3 |\n 44590 | 2024-04-15 18:49:37 | MASTER-Kislovodsk | (14h 34m 39.37s , +71d 15m 19.0s) | C | 60 | 18.1 |\n 44597 | 2024-04-15 18:49:44 | MASTER-Tavrida | (14h 24m 47.23s , +73d 10m 17.6s) | C | 60 | 18.3 |\n 44670 | 2024-04-15 18:50:57 | MASTER-Kislovodsk | (14h 43m 16.62s , +79d 17m 39.9s) | C | 60 | 17.5 |\n 44670 | 2024-04-15 18:50:57 | MASTER-Kislovodsk | (15h 04m 56.57s , +78d 49m 56.8s) | C | 60 | 18.3 |\n 44877 | 2024-04-15 18:54:24 | MASTER-Tavrida | (13h 21m 14.79s , +71d 15m 40.9s) | C | 60 | 18.5 |\n 44950 | 2024-04-15 18:55:37 | MASTER-Kislovodsk | (12h 55m 52.40s , +81d 11m 20.1s) | C | 60 | 17.3 |\n 44950 | 2024-04-15 18:55:37 | MASTER-Kislovodsk | (13h 21m 27.72s , +80d 44m 44.2s) | C | 60 | 17.9 |\n 45031 | 2024-04-15 18:56:58 | MASTER-Kislovodsk | (14h 51m 29.36s , +77d 21m 43.6s) | C | 60 | 17.0 |\n 45031 | 2024-04-15 18:56:58 | MASTER-Kislovodsk | (15h 09m 43.58s , +76d 54m 21.0s) | C | 60 | 17.6 |\n 45111 | 2024-04-15 18:58:18 | MASTER-Kislovodsk | (12h 23m 29.80s , +73d 37m 50.3s) | C | 60 | 17.4 |\n 45111 | 2024-04-15 18:58:18 | MASTER-Kislovodsk | (12h 38m 11.43s , +73d 13m 26.0s) | C | 60 | 18.0 |\n 45165 | 2024-04-15 18:59:12 | MASTER-Tavrida | (13h 46m 25.65s , +71d 16m 16.2s) | C | 60 | 18.4 |\n 45191 | 2024-04-15 18:59:38 | MASTER-Kislovodsk | (13h 57m 39.21s , +75d 28m 58.0s) | C | 60 | 17.2 |\n 45191 | 2024-04-15 18:59:38 | MASTER-Kislovodsk | (14h 13m 58.40s , +75d 03m 07.1s) | C | 60 | 17.8 |\n 45240 | 2024-04-15 19:00:27 | MASTER-Tavrida | (11h 42m 12.12s , +75d 01m 49.4s) | C | 60 | 18.5 |\n 45271 | 2024-04-15 19:00:58 | MASTER-Kislovodsk | (13h 22m 29.72s , +79d 18m 43.9s) | C | 60 | 17.2 |\n 45271 | 2024-04-15 19:00:58 | MASTER-Kislovodsk | (13h 44m 13.71s , +78d 52m 49.5s) | C | 60 | 17.9 |\n 45317 | 2024-04-15 19:01:44 | MASTER-Tavrida | (12h 13m 40.94s , +75d 01m 28.4s) | C | 60 | 18.7 |\n 45351 | 2024-04-15 19:02:18 | MASTER-Kislovodsk | (13h 16m 54.83s , +73d 36m 29.9s) | C | 60 | 17.3 |\n 45351 | 2024-04-15 19:02:18 | MASTER-Kislovodsk | (13h 31m 32.67s , +73d 11m 28.0s) | C | 60 | 17.8 |\n 45388 | 2024-04-15 19:02:55 | MASTER-Tavrida | (12h 33m 18.22s , +71d 13m 42.0s) | C | 60 | 18.6 |\n 45432 | 2024-04-15 19:03:39 | MASTER-Kislovodsk | (12h 32m 59.58s , +77d 25m 49.4s) | C | 60 | 17.2 |\n 45432 | 2024-04-15 19:03:39 | MASTER-Kislovodsk | (12h 51m 46.06s , +77d 01m 20.2s) | C | 60 | 17.9 |\n 45460 | 2024-04-15 19:04:07 | MASTER-Tavrida | (12h 58m 31.22s , +71d 15m 36.2s) | C | 60 | 18.7 |\n 45512 | 2024-04-15 19:04:59 | MASTER-Kislovodsk | (14h 21m 31.48s , +71d 41m 32.0s) | C | 60 | 17.0 |\n 45512 | 2024-04-15 19:04:59 | MASTER-Kislovodsk | (14h 34m 42.40s , +71d 16m 12.0s) | C | 60 | 17.8 |\n 45533 | 2024-04-15 19:05:20 | MASTER-Tavrida | (11h 41m 07.92s , +78d 48m 47.3s) | C | 60 | 18.6 |\n 45593 | 2024-04-15 19:06:20 | MASTER-Kislovodsk | (14h 43m 17.06s , +79d 15m 58.1s) | C | 60 | 17.1 |\n 45593 | 2024-04-15 19:06:20 | MASTER-Kislovodsk | (15h 04m 49.15s , +78d 49m 00.0s) | C | 60 | 17.8 |\n 45605 | 2024-04-15 19:06:32 | MASTER-Tavrida | (12h 23m 34.35s , +78d 51m 09.5s) | C | 60 | 18.6 |\n 45673 | 2024-04-15 19:07:40 | MASTER-Kislovodsk | (14h 57m 50.89s , +75d 27m 52.6s) | C | 60 | 17.0 |\n 45753 | 2024-04-15 19:09:00 | MASTER-Kislovodsk | (13h 47m 36.20s , +69d 49m 09.2s) | C | 60 | 17.1 |\n 45753 | 2024-04-15 19:09:00 | MASTER-Kislovodsk | (13h 59m 42.52s , +69d 24m 28.3s) | C | 60 | 17.8 |\n 45833 | 2024-04-15 19:10:20 | MASTER-Kislovodsk | (14h 59m 12.52s , +80d 42m 48.6s) | C | 60 | 17.8 |\n 45894 | 2024-04-15 19:11:22 | MASTER-Tavrida | (12h 42m 08.42s , +75d 03m 32.5s) | C | 60 | 18.6 |\n 45966 | 2024-04-15 19:12:33 | MASTER-Tavrida | (13h 13m 51.27s , +75d 02m 51.3s) | C | 60 | 18.6 |\nFilter C is a clear (unfiltred) band.\n\n\nThe observation and reduction will continue.\nThe message may be cited.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/36119.",
"published": "2024-04-15T19:15:43.506508Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-04-15T19:15:43.506522Z",
"modified": "2024-04-15T19:15:43.516173Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5972,
"topic": "gcn.circular",
"uuid": "8b6e030c-05a9-4ee1-8b27-abbe014ea9e1",
"title": "GRB 240205A: Fermi GBM Final Real-time Localization",
"submitter": "Hop gcn.circular",
"authors": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
"data": {
"date": "24/02/05 20:37:04 GMT",
"from": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35679"
},
"title": "GCN CIRCULAR",
"number": "35679",
"subject": "GRB 240205A: Fermi GBM Final Real-time Localization"
},
"message_text": "The Fermi GBM team reports the detection of a likely SHORT GRB\n\nAt 20:26:30 UT on 5 Feb 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240205A (trigger 728857595.713148 / 240205852).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 300.9, Dec = 20.5 (J2000 degrees, equivalent to J2000 20h 03m, 20d 30'), with a statistical uncertainty of 6.0 degrees.\n\nThe angle from the Fermi LAT boresight is 57.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240205852/quicklook/glg_skymap_all_bn240205852.png\n\nThe HEALPix FITS file, including the estimated localization systematic, can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240205852/quicklook/glg_healpix_all_bn240205852.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240205852/quicklook/glg_lc_medres34_bn240205852.gif\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35679.",
"published": "2024-02-05T20:37:16.532018Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-05T20:37:16.532039Z",
"modified": "2024-02-05T20:37:16.537961Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5973,
"topic": "gcn.circular",
"uuid": "e029d1fd-b871-4edd-8bd7-2017108c3bcd",
"title": "GRB 240204A: Fermi GBM Observation",
"submitter": "Hop gcn.circular",
"authors": "Lorenzo Scotton at UAH <lscottongcn@outlook.com>",
"data": {
"date": "24/02/05 21:17:16 GMT",
"from": "Lorenzo Scotton at UAH <lscottongcn@outlook.com>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35680"
},
"title": "GCN CIRCULAR",
"number": "35680",
"subject": "GRB 240204A: Fermi GBM Observation"
},
"message_text": "L. Scotton (UAH) and C. Meegan (UAH) report on behalf of\nthe Fermi Gamma-ray Burst Monitor Team:\n\n\"At 15:07:38.68 UT on 04 February 2024, the Fermi Gamma-ray Burst Monitor (GBM)\ntriggered and located GRB 240204A (trigger 728752063/240204630),\nwhich was also detected by Swift XRT (S. B. Cenko et al. 2024, GCN 35666).\nThe Fermi GBM on-ground location is consistent with the Swift XRT position.\n\nThe angle from the Fermi LAT boresight is 101 degrees.\n\nThe GBM light curve consists of a single emission episode with a duration (T90)\nof about 15.9 s (50-300 keV). The time-averaged spectrum\nfrom T0-6.5 to T0+34.5 s is best fit by\na power law function with an exponential high-energy cutoff.\nThe power law index is -1.03 +/- 0.03 and the cutoff energy,\nparameterized as Epeak, is 84 +/- 2 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(1.69 +/- 0.02)E-05 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+12 s in the 10-1000 keV band is 32.9 +/- 0.5 ph/s/cm^2.\n\nA Band function fits the spectrum equally well\nwith Epeak= 79 +/- 2 keV, alpha = -0.97 +/- 0.04 and beta = -3.0 +/- 0.2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog:\nhttps://heasarc.gsfc.nasa.gov/W3Browse/fermi/fermigbrst.html\n\nFor Fermi GBM data and info, please visit the official Fermi GBM Support Page:\nhttps://fermi.gsfc.nasa.gov/ssc/data/access/gbm/\"\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35680.",
"published": "2024-02-05T21:17:28.138738Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-05T21:17:28.138765Z",
"modified": "2024-02-05T21:17:28.144958Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5974,
"topic": "gcn.circular",
"uuid": "e334a2d3-e9bd-4346-9faa-325ba4122943",
"title": "Swift GRB240205.93: Global MASTER-Net observations report",
"submitter": "Hop gcn.circular",
"authors": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"data": {
"date": "24/02/05 22:19:22 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35681"
},
"title": "GCN CIRCULAR",
"number": "35681",
"subject": "Swift GRB240205.93: Global MASTER-Net observations report"
},
"message_text": "V. Lipunov, V.Kornilov, E. Gorbovskoy, K. Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, V.Senik, D. Vlasenko,\nG.Antipov, D.Zimnukhov, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D. Cheryasov, Ya.Kechin, Yu.Tselik, A. Sosnovskij\n(Lomonosov Moscow State University, SAI, Physics Department),\n\nR. Podesta, C.Lopez, F. Podesta, C.Francile\n(Observatorio Astronomico Felix Aguilar OAFA),\n\nR. Rebolo, M. Serra\n(The Instituto de Astrofisica de Canarias),\n\nD. Buckley\n(South African Astronomical Observatory),\n\nO.A. Gress, N.M. Budnev, O.Ershova\n(Irkutsk State University, API),\n\nL.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez,\nA.R.Corella, L.H.Rodriguez\n(INAOE, Guillermo Haro Astrophysics Observatory),\n\nA. Tlatov, D. Dormidontov\n(Kislovodsk Solar Station of the Pulkovo Observatory),\n\nV. Yurkov, A. Gabovich\n(Blagoveschensk Educational State University)\n\nMASTER-SAAO robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in South Africa (South African Astronomical Observatory) was pointed to the Swift GRB240205.93 (trigger No 1213095,23h 25m 54.24s , -55d 07m 55.2s, R=0.05) errorbox 26 sec after notice time and 47 sec after trigger time at 2024-02-05 22:13:54 UT, with upper limit up to 15.9 mag. The observations began at zenith distance = 86 deg. The sun altitude is -41.1 deg.\n\nThe galactic latitude b = -58 deg., longitude l = 326 deg.\n\n\nReal time updated cover map and OT discovered available here:\nhttps://master.sai.msu.ru/site/master2/observ.php?id#71949\n\nWe obtain a following upper limits.\n\nTmid-T0 | Site |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____|_______|______|________\n\n 53 | MASTER-SAAO | P\\\\ | 10 | 13.1 |\n 53 | MASTER-SAAO | P/ | 10 | 15.3 |\n 71 | MASTER-SAAO | P/ | 10 | 15.3 |\n 71 | MASTER-SAAO | P\\\\ | 10 | 13.1 |\n 93 | MASTER-SAAO | P/ | 20 | 15.9 |\n\n\nThe observation and reduction will continue.\nThe message may be cited.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35681.",
"published": "2024-02-05T22:19:35.417655Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-05T22:19:35.417677Z",
"modified": "2024-02-05T22:19:35.426594Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6010,
"topic": "gcn.circular",
"uuid": "c3013784-ffa3-4a29-a5c1-63bfb6cf1363",
"title": "GRB 240209A: NOEMA non-detection of AT2024cew / GOTO24pw counterpart candidate",
"submitter": "Hop gcn.circular",
"authors": "Antonio de Ugarte Postigo at OCA <deugarte@oca.eu>",
"data": {
"date": "24/02/13 18:24:21 GMT",
"from": "Antonio de Ugarte Postigo at OCA <deugarte@oca.eu>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35717"
},
"title": "GCN CIRCULAR",
"number": "35717",
"subject": "GRB 240209A: NOEMA non-detection of AT2024cew / GOTO24pw counterpart candidate"
},
"message_text": "A. de Ugarte Postigo (CNRS/OCA & LAM), M. Bremer (IRAM), C. C. Thoene (ASU-CAS), J. F. Agui Fernandez (CAHA), S. Antier (OCA), S. Basa (LAM), M. Michalowski (AOI-AMU), D. A. Perley (LJMU), S. Martin (ESO, ALMA) report:\n\nWe observed AT2024cew / GOTO24pw (Belkin et al. GCN 35715, de Ugarte Postigo et al. GCN 35716), the optical counterpart candidate of GRB 240209A (Fermi GBM team, GCN 35712), with NOEMA at 74 and 90 GHz at a mean epoch 4.025 days after the burst.\n\nThere is no detection down to a 3-sigma limit of 60 microJy at 90 GHz. This limit disfavours the connection between AT2024cew / GOTO24pw and GRB 240209A, although it is not excluding.\n\nBased on observations carried out under project number W23DI with the IRAM NOEMA Interferometer. IRAM is supported by INSU/CNRS (France), MPG (Germany) and IGN (Spain).\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35717.",
"published": "2024-02-13T18:24:40.882541Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-13T18:24:40.882557Z",
"modified": "2024-02-13T18:24:40.890767Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6590,
"topic": "gcn.circular",
"uuid": "cd40fcbd-8c9d-427f-87df-aa1cf7748a90",
"title": "GRB 240414A: Fermi GBM Observation",
"submitter": "Hop gcn.circular",
"authors": "Ava Myers at NASA GSFC <ava.myers@nasa.gov>",
"data": {
"date": "24/04/15 20:36:01 GMT",
"from": "Ava Myers at NASA GSFC <ava.myers@nasa.gov>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/36120"
},
"title": "GCN CIRCULAR",
"number": "36120",
"subject": "GRB 240414A: Fermi GBM Observation"
},
"message_text": "A. Myers (NPP/GSFC) reports on behalf of the Fermi Gamma-ray Burst Monitor Team:\n\n\"At 02:20:39.26 UT on 14 April 2024, the Fermi Gamma-ray Burst Monitor (GBM)\ntriggered and located GRB 240414A (trigger 734754044/240414098).\nwhich was also detected by Swift BAT (R. Caputo et al. 2024, GCN 36083).\nThe event was originally mislabeled as GRB 240414B\n(Fermi GBM Team, GCN 36612). The Fermi GBM on-ground\nlocation is consistent with the Swift BAT position.\n\nThe angle from the Fermi LAT boresight is 49 degrees.\n\nThe GBM light curve contains a double emission episode with a duration (T90)\nof about 82 s (50-300 keV). The time-averaged spectrum\nfrom T0-1.5 to T0+80.4 s is best fit by\na power law function with an exponential high-energy cutoff.\nThe power law index is -0.9 +/- 0.1 and the cutoff energy,\nparameterized as Epeak, is 150 +/- 20 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(5.556 +/- 1.065)E-06 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0-0.19 s in the 10-1000 keV band is 2.7 +/- 0.2 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog:\nhttps://heasarc.gsfc.nasa.gov/W3Browse/fermi/fermigbrst.html\n\nFor Fermi GBM data and info, please visit the official Fermi GBM Support Page:\nhttps://fermi.gsfc.nasa.gov/ssc/data/access/gbm/\"\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/36120.",
"published": "2024-04-15T20:36:18.128868Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-04-15T20:36:18.128882Z",
"modified": "2024-04-15T20:36:18.136586Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5975,
"topic": "gcn.circular",
"uuid": "e9d24eb9-51ee-4736-942f-014cdd8de631",
"title": "GRB 240205B: Fermi GBM Final Real-time Localization",
"submitter": "Hop gcn.circular",
"authors": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
"data": {
"date": "24/02/05 22:23:35 GMT",
"from": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35682"
},
"title": "GCN CIRCULAR",
"number": "35682",
"subject": "GRB 240205B: Fermi GBM Final Real-time Localization"
},
"message_text": "The Fermi GBM team reports the detection of a likely LONG GRB\n\nAt 22:13:08 UT on 5 Feb 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240205B (trigger 728863993.169242 / 240205926).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 352.0, Dec = -53.0 (J2000 degrees, equivalent to J2000 23h 27m, -53d 00'), with a statistical uncertainty of 1.0 degrees.\n\nThe angle from the Fermi LAT boresight is 110.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240205926/quicklook/glg_skymap_all_bn240205926.png\n\nThe HEALPix FITS file, including the estimated localization systematic, can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240205926/quicklook/glg_healpix_all_bn240205926.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240205926/quicklook/glg_lc_medres34_bn240205926.gif\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35682.",
"published": "2024-02-05T22:23:43.745560Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-05T22:23:43.745579Z",
"modified": "2024-02-05T22:23:43.752043Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5976,
"topic": "gcn.circular",
"uuid": "f4625b2f-a791-48bd-94c8-01c0c48b9b2d",
"title": "GRB 240205B: Swift detection of a burst",
"submitter": "Hop gcn.circular",
"authors": "David Palmer at LANL <palmer@lanl.gov>",
"data": {
"date": "24/02/05 22:31:07 GMT",
"from": "David Palmer at LANL <palmer@lanl.gov>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35683"
},
"title": "GCN CIRCULAR",
"number": "35683",
"subject": "GRB 240205B: Swift detection of a burst"
},
"message_text": "\nM. J. Moss (GSFC), C. Gronwall (PSU), J.D. Gropp (PSU),\nK. L. Page (U Leicester) and D. M. Palmer (LANL) report on behalf of\nthe Neil Gehrels Swift Observatory Team:\n\nAt 22:13:06 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated GRB 240205B (trigger\u001213095). Swift did not immediately slew\ndue to a Sun constraint.\nThe BAT on-board calculated location is\nRA, Dec 351.476, -55.132 which is\n RA(J2000) = 23h 25m 54s\n Dec(J2000) = -55d 07' 55\"\nwith an uncertainty of 3 arcmin (radius, 90% containment, including\nsystematic uncertainty). The BAT light curve is only available\nup to T+8s due to a telemetry gap. The partial light curve shows a\ncomplex rise to a count rate of ~10,000 counts/s (15-350 keV)\nand still rising steeply at 8 sec after the trigger.\n\nThis GRB is Sun constrained for Swift observations until February 25th.\nThere will therefore not be any XRT or UVOT data collected.\n\nBurst Advocate for this burst is M. J. Moss (mikejmoss3 AT gmail.com).\nPlease contact the BA by email if you require additional information\nregarding Swift followup of this burst. In extremely urgent cases, after\ntrying the Burst Advocate, you can contact the Swift PI by phone (see\nSwift TOO web site for information: http://www.swift.psu.edu/)\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35683.",
"published": "2024-02-05T22:31:19.547420Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-05T22:31:19.547439Z",
"modified": "2024-02-05T22:31:19.554352Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6036,
"topic": "gcn.circular",
"uuid": "7c552de9-ec22-447d-a82f-d14e13f51f6a",
"title": "GRB240218A: VLT/X-shooter upper limits",
"submitter": "Hop gcn.circular",
"authors": "Daniele B. Malesani at IMAPP / Radboud University <d.malesani@astro.ru.nl>",
"data": {
"date": "24/02/18 03:49:19 GMT",
"from": "Daniele B. Malesani at IMAPP / Radboud University <d.malesani@astro.ru.nl>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35743"
},
"title": "GCN CIRCULAR",
"number": "35743",
"subject": "GRB240218A: VLT/X-shooter upper limits"
},
"message_text": "D. B Malesani (DAWN/NBI and Radboud Univ.) and E. Le Floch (CEA) report on behalf of the Stargate collaboration:\n\nWe observed the field of GRB 240218A (Page et al., GCN 35742) using the ESO VLT UT3 with the X-shooter acquisition camera. A short sequence of imaging was secured in the r, g, and z bands. No afterglow is detected consistent with the position reported by XRT (https://www.swift.ac.uk/xrt_positions/) with the following upper limits:\n\nr band: r > 23.0 (AB) on Feb 18.124 UT (1.00 hr after the GRB);\nz band: z > 21.5 (AB) on Feb 18.127 UT (1.07 hr after the GRB).\n\nWe acknowledge excellent support from the VLT staff in Paranal, in particular Jonathan Smoker, Thomas Szeifert, and Rodrigo Romero.\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35743.",
"published": "2024-02-18T03:49:36.800050Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-18T03:49:36.800078Z",
"modified": "2024-02-18T03:49:36.809507Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6591,
"topic": "gcn.circular",
"uuid": "f36c4a81-aed3-4937-ade2-27ab34407d6a",
"title": "GRB 240415A: Mondy optical transient detection (photometry correction in GCN 36118 )",
"submitter": "Hop gcn.circular",
"authors": "Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>",
"data": {
"date": "24/04/15 20:42:11 GMT",
"from": "Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/36121"
},
"title": "GCN CIRCULAR",
"number": "36121",
"subject": "GRB 240415A: Mondy optical transient detection (photometry correction in GCN 36118 )"
},
"message_text": "N. Pankov (HSE, IKI), A. Pozanenko (IKI), E. Klunko (ISTP), A. Moskvitin (SAO RAS), S. Belkin (IKI) report on behalf of GRB-IKI-FuN:\n\nWe report correction to the GCN 36118 (Pankov et al.) and additional photometry in subsequent epochs.\nPreliminary photometry of the optical transient is following:\n\nDate UT_start MJD Filter Exp. OT err UL(3sigma)\n (mid, days) (s)\n2024-04-15 14:33:22 60415.627345 R 30*120 19.9 0.1 21.8\n2024-04-15 16:13:49 60415.697104 R 30*120 20.5 0.1 21.9\n2024-04-15 17:20:02 60415.732668 R 15*120 20.9 0.1 21.9\n\nThe magnitudes were calibrated using nearby USNO-B1.0 stars.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/36121.",
"published": "2024-04-15T20:42:21.621309Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-04-15T20:42:21.621329Z",
"modified": "2024-04-15T20:42:21.628308Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5977,
"topic": "gcn.circular",
"uuid": "080ca3fe-7c23-4f54-b392-fdac3da5d42f",
"title": "GRB 240205B: MASTER OT J232550.14-550704.6 counterpart detection",
"submitter": "Hop gcn.circular",
"authors": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"data": {
"date": "24/02/05 23:02:28 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35684"
},
"title": "GCN CIRCULAR",
"number": "35684",
"subject": "GRB 240205B: MASTER OT J232550.14-550704.6 counterpart detection"
},
"message_text": "V.Lipunov, Ya.Kechin, N.Tiurina, G.Antipov E.Gorbovskoy (Lomonosov MSU), D.Buckley (SAAO),\nD.Svinkin (Ioffe Institute, Konus-Wind),\nYa.Kechin, K.Zhirkov, A.Kuznetsov, D.Vlasenko, P.Balanutsa, Yu.Tselik, N.Tiurina, I.Gorbunov, V.Vladimirov,\nD.Zimnukhov, V.Senik, A.Yudin,A.Chasovnikov, D.Cheryasov, A.Sosnovskij (Lomonosov MSU,SAI,PhysicsDepartment),\nO.A. Gres, N.M. Budnev (Irkutsk State University, API),\nC.Francile. F. Podesta, R.Podesta (Observatorio Astronomico Felix Aguilar OAFA),\nR. Rebolo, M. Serra(The Instituto de Astrofisica de Canarias),\nA. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory),\nA. Gabovich, V.Yurkov (Blagoveschensk Educational StateUniversity)\n\nMASTER Global robotic net (http://observ.pereplet.ru Lipunov et al.,2010,Advances in Astronomy,2010,30L) started Swift GRB 240205B/Fermi GRB 240205B observation 26 sec after notice time and 47 sec after trigger time at 2024-02-05 22:13:54 UT, with upper limit up to 15.9 mag. The observations began at zenith distance = 86 deg. (Lipunov et al. GCN 35681) MASTER auto-detection system discovered changing OT inside Swift BAT (Moss GCN 35682, Fermi GCN 25682)\nMASTER OT J232550.14-550704.6\nR.A.,Dec(2000)# 25 50.14 -55 07 04.6 with mOT~12.8 near maximum\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35684.",
"published": "2024-02-05T23:02:40.093537Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-05T23:02:40.093573Z",
"modified": "2024-02-05T23:02:40.100544Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5978,
"topic": "gcn.circular",
"uuid": "e35497bc-3629-4b55-b190-9176f2425092",
"title": "Fermi trigger No 728749569: Global MASTER-Net observations report",
"submitter": "Hop gcn.circular",
"authors": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"data": {
"date": "24/02/05 23:45:39 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35685"
},
"title": "GCN CIRCULAR",
"number": "35685",
"subject": "Fermi trigger No 728749569: Global MASTER-Net observations report"
},
"message_text": "V. Lipunov, V.Kornilov, E. Gorbovskoy, K. Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, V.Senik, D. Vlasenko,\nG.Antipov, D.Zimnukhov, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D. Cheryasov, Ya.Kechin, Yu.Tselik, A. Sosnovskij\n(Lomonosov Moscow State University, SAI, Physics Department),\n\nR. Podesta, C.Lopez, F. Podesta, C.Francile\n(Observatorio Astronomico Felix Aguilar OAFA),\n\nR. Rebolo, M. Serra\n(The Instituto de Astrofisica de Canarias),\n\nD. Buckley\n(South African Astronomical Observatory),\n\nO.A. Gress, N.M. Budnev, O.Ershova\n(Irkutsk State University, API),\n\nL.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez,\nA.R.Corella, L.H.Rodriguez\n(INAOE, Guillermo Haro Astrophysics Observatory),\n\nA. Tlatov, D. Dormidontov\n(Kislovodsk Solar Station of the Pulkovo Observatory),\n\nV. Yurkov, A. Gabovich\n(Blagoveschensk Educational State University)\n\nMASTER-SAAO robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in South Africa (South African Astronomical Observatory) started inspect of the Fermi GRB240204.60 (trigger No 728749569,20h 39m 07.92s , -34d 31m 01.2s, R4.82) errorbox 1 days 28036 sec after notice time and 1 days 28069 sec after trigger time at 2024-02-05 22:13:54 UT, with upper limit up to 17.1 mag. The observations began at zenith distance = 86 deg. The sun altitude is -41.1 deg.\n\nThe galactic latitude b = -37 deg., longitude l = 9 deg.\n\n\nReal time updated cover map and OT discovered available here:\nhttps://master.sai.msu.ru/site/master2/observ.php?id#71201\n\nWe obtain a following upper limits.\n\nTmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n 114475 | 2024-02-05 22:13:54 | MASTER-SAAO | (23h 18m 03.91s , -55d 00m 37.9s) | P\\\\ | 10 | 13.1 |\n 114490 | 2024-02-05 22:13:54 | MASTER-SAAO | (23h 18m 03.95s , -55d 00m 38.2s) | P\\\\ | 40 | 13.7 | Coadd\n 114475 | 2024-02-05 22:13:54 | MASTER-SAAO | (23h 27m 10.53s , -55d 14m 46.9s) | P/ | 10 | 15.3 |\n 114490 | 2024-02-05 22:13:54 | MASTER-SAAO | (23h 27m 10.57s , -55d 14m 46.3s) | P/ | 40 | 16.1 | Coadd\n 114493 | 2024-02-05 22:14:12 | MASTER-SAAO | (23h 27m 10.62s , -55d 14m 46.0s) | P/ | 10 | 15.3 |\n 114493 | 2024-02-05 22:14:12 | MASTER-SAAO | (23h 18m 04.09s , -55d 00m 37.6s) | P\\\\ | 10 | 13.1 |\n 114515 | 2024-02-05 22:14:29 | MASTER-SAAO | (23h 18m 04.16s , -55d 00m 36.1s) | P\\\\ | 20 | 14.0 |\n 114515 | 2024-02-05 22:14:29 | MASTER-SAAO | (23h 27m 10.68s , -55d 14m 45.8s) | P/ | 20 | 15.9 |\n 114543 | 2024-02-05 22:14:57 | MASTER-SAAO | (23h 27m 10.78s , -55d 14m 44.7s) | P/ | 20 | 15.8 |\n 114573 | 2024-02-05 22:14:57 | MASTER-SAAO | (23h 27m 10.90s , -55d 14m 44.1s) | P/ | 80 | 16.6 | Coadd\n 114576 | 2024-02-05 22:15:25 | MASTER-SAAO | (23h 18m 04.40s , -55d 00m 30.3s) | P\\\\ | 30 | 13.7 |\n 114611 | 2024-02-05 22:15:25 | MASTER-SAAO | (23h 18m 04.44s , -55d 00m 30.4s) | P\\\\ | 100 | 14.4 | Coadd\n 114576 | 2024-02-05 22:15:25 | MASTER-SAAO | (23h 27m 10.95s , -55d 14m 44.5s) | P/ | 30 | 15.9 |\n 114613 | 2024-02-05 22:16:03 | MASTER-SAAO | (23h 18m 04.64s , -55d 00m 28.2s) | P\\\\ | 30 | 14.0 |\n 114614 | 2024-02-05 22:16:03 | MASTER-SAAO | (23h 27m 11.21s , -55d 14m 43.3s) | P/ | 30 | 16.1 |\n 114656 | 2024-02-05 22:16:40 | MASTER-SAAO | (23h 27m 11.49s , -55d 14m 42.7s) | P/ | 40 | 16.6 |\n 114656 | 2024-02-05 22:16:40 | MASTER-SAAO | (23h 18m 04.78s , -55d 00m 24.9s) | P\\\\ | 40 | 13.8 |\n 114711 | 2024-02-05 22:16:40 | MASTER-SAAO | (23h 27m 11.46s , -55d 14m 42.3s) | P/ | 150 | 17.1 | Coadd\n 114709 | 2024-02-05 22:17:28 | MASTER-SAAO | (23h 18m 05.06s , -55d 00m 21.3s) | P\\\\ | 50 | 13.7 |\n 114709 | 2024-02-05 22:17:28 | MASTER-SAAO | (23h 27m 11.61s , -55d 14m 39.5s) | P/ | 50 | 16.2 |\n 114772 | 2024-02-05 22:18:26 | MASTER-SAAO | (23h 27m 11.34s , -55d 14m 41.4s) | P/ | 60 | 15.2 |\n 114859 | 2024-02-05 22:19:53 | MASTER-SAAO | (23h 27m 25.86s , -55d 18m 47.2s) | P/ | 60 | 15.8 |\n 115018 | 2024-02-05 22:22:32 | MASTER-SAAO | (23h 18m 19.36s , -55d 04m 07.0s) | P\\\\ | 60 | 13.6 |\n 115176 | 2024-02-05 22:25:10 | MASTER-SAAO | (23h 27m 26.02s , -55d 18m 21.2s) | P/ | 60 | 15.4 |\n 115256 | 2024-02-05 22:26:30 | MASTER-SAAO | (23h 18m 19.31s , -55d 03m 39.2s) | P\\\\ | 60 | 13.3 |\n 115335 | 2024-02-05 22:27:49 | MASTER-SAAO | (23h 18m 19.27s , -55d 03m 30.1s) | P\\\\ | 60 | 13.4 |\n 115494 | 2024-02-05 22:30:28 | MASTER-SAAO | (23h 18m 19.15s , -55d 03m 08.6s) | P\\\\ | 60 | 12.5 |\n 115494 | 2024-02-05 22:30:28 | MASTER-SAAO | (23h 27m 26.72s , -55d 17m 52.7s) | P/ | 60 | 14.7 |\n 115574 | 2024-02-05 22:31:48 | MASTER-SAAO | (23h 18m 18.68s , -55d 02m 52.8s) | P\\\\ | 60 | 13.4 |\n 115653 | 2024-02-05 22:33:07 | MASTER-SAAO | (23h 18m 18.96s , -55d 02m 46.1s) | P\\\\ | 60 | 13.3 |\n 115813 | 2024-02-05 22:35:47 | MASTER-SAAO | (23h 18m 18.94s , -55d 02m 22.9s) | P\\\\ | 60 | 13.3 |\n 116052 | 2024-02-05 22:39:46 | MASTER-SAAO | (23h 18m 18.18s , -55d 01m 36.2s) | P\\\\ | 60 | 13.3 |\n 116211 | 2024-02-05 22:42:25 | MASTER-SAAO | (23h 27m 25.99s , -55d 16m 28.5s) | P/ | 60 | 15.0 |\n\n\nThe observation and reduction will continue.\nThe message may be cited.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35685.",
"published": "2024-02-05T23:45:51.068859Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-05T23:45:51.068878Z",
"modified": "2024-02-05T23:45:51.078688Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5987,
"topic": "gcn.circular",
"uuid": "2ac4f7da-eac7-4e89-bc4c-b2cc9d4f08e2",
"title": "GRB 240205B: REM detection of the optical/NIR afterglow",
"submitter": "Hop gcn.circular",
"authors": "Matteo Ferro <matteo.ferro@inaf.it>",
"data": {
"date": "24/02/06 16:33:01 GMT",
"from": "Matteo Ferro <matteo.ferro@inaf.it>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35694"
},
"title": "GCN CIRCULAR",
"number": "35694",
"subject": "GRB 240205B: REM detection of the optical/NIR afterglow"
},
"message_text": "M. Ferro, R. Brivio, Y.-D. Hu, P. D'Avanzo, D. Fugazza, S. Covino (INAF-OAB) on behalf of the REM team, report:\n\nWe observed the field of GRB 240205B (Fermi GBM Team., GCN 35682; Moss et al., GCN 35683) with the REM 60cm robotic telescope located at the ESO Observatory of La Silla (Chile). The observations were carried out in the g, r, i, z, J, H and K bands, starting on 2024 Feb 05 at 00:46:23 UT (i.e. about 2.55 hours after the GBM and Swift trigger) and lasted for about 1.5 hours.\n\nThe optical (Lipunov et al., GCN 35684, Fernandez-Garcia et al., GCN 35686, Dutton et al., GCN 35687) and NIR afterglow is detected in our observations. From preliminary photometry, we derive the following magnitudes, in r and H bands:\n\nr = 15.67+/-0.01Â (AB; calibrated against SkyMapper catalogue)\nat a mid time of t-t0 ~ 2.63 hours after the GRB trigger.\nH = 13.92+/-0.04Â (Vega; calibrated against the 2MASS catalogue)\nat a mid time of t-t0 ~ 2.65 hours after the GRB trigger.\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35694.",
"published": "2024-02-06T16:33:16.597516Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-06T16:33:16.597531Z",
"modified": "2024-02-06T16:33:16.603965Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5988,
"topic": "gcn.circular",
"uuid": "4cda0d8c-55f1-4434-bd72-dede8ad121b8",
"title": "GRB 240205B: ATCA detection of radio counterpart",
"submitter": "Hop gcn.circular",
"authors": "Sarah Chastain at University of New Mexico <sarahichastain@gmail.com>",
"data": {
"date": "24/02/06 22:54:29 GMT",
"from": "Sarah Chastain at University of New Mexico <sarahichastain@gmail.com>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35695"
},
"title": "GCN CIRCULAR",
"number": "35695",
"subject": "GRB 240205B: ATCA detection of radio counterpart"
},
"message_text": "S. Chastain (UNM), G. E. Anderson (Curtin), A. Gulati (USyd), L. Rhodes (Oxford), J. K. Leung (UofT/HUJI),\nA. J. van der Horst (GWU) on behalf of the PanRadio GRB collaboration\n\nThe Australia Telescope Compact Array (ATCA) performed rapid-response follow-up to long GRB 240205B detected by Fermi-GBM (Fermi GBM Team, GCN 35682), Swift-BAT (Moss et al., GCN 35683), and GECAM (Zhang et al., GCN 35689) at the MASTER-OT localization (Lipunov et al., GCN 35684) as part of the Large ATCA \"PanRadio GRB\" follow-up programme C3542 (PI. Anderson).\n\nThe observation was on target by 2024-02-05 at 22:26 UT and ended 11.5 hours later. We detected a candidate radio afterglow at 9 GHz consistent with the MASTER-OT position with a preliminary flux density of ~100 microJy with rms noise of 11 microJy.\n\nFurther observations are planned.\n\nWe thank the CSIRO Space and Astronomy staff for supporting these observations.\nWe acknowledge the Gomeroi people as the traditional owners of the Observatory site. The Australia Telescope Compact Array is part of the Australia Telescope National Facility (https://ror.org/05qajvd42) which is funded by the Australian Government for operation as a National Facility managed by CSIRO.\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35695.",
"published": "2024-02-06T22:54:44.981323Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-06T22:54:44.981343Z",
"modified": "2024-02-06T22:54:44.989874Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5979,
"topic": "gcn.circular",
"uuid": "28449cb3-bf42-4112-8f99-cc7f7774fa5e",
"title": "GRB 240205B: BOOTES-7 optical afterglow follow-up",
"submitter": "Hop gcn.circular",
"authors": "Alberto Castro-Tirado at Inst.de Astro. de Andalucia <ajct@iaa.es>",
"data": {
"date": "24/02/06 01:23:45 GMT",
"from": "Alberto Castro-Tirado at Inst.de Astro. de Andalucia <ajct@iaa.es>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35686"
},
"title": "GCN CIRCULAR",
"number": "35686",
"subject": "GRB 240205B: BOOTES-7 optical afterglow follow-up"
},
"message_text": "E. Fernandez-Garcia, A. J. Castro-Tirado, M. D. Caballero-Garcia, R. Sanchez-Ramirez, I. Perez-Garcia, S.-Y. Wu, S. Guziy (IAA-CSIC Granada), Y.-D. Hu (INAF-OAB, Brera), L. Hernandez-Garcia (Univ. de Valparaiso), C. Perez del Pulgar, A. Castellon, A. Reina (Univ. de Malaga), B.-B. Zhang (Nanjing Univ.) and A. Maury (Space, San Pedro de Atacama), report:\n\nFollowing the detection of GRB 240205B by Fermi (GCNC 35682) and Swift (Palmer et al., GCNC 35683), the 0.6m BOOTES-7 robotic telescope at San Pedro de Atacama (Chile) pointed to the burst position starting on Feb 6 at 00:15 UT (i.e. ~2 h after trigger). Images are being gathered, through passing clouds, in different optical bands (griz). In any case, the optical afterglow reported by MASTER (Lipunov et al. GCNC 35684), is well detected in all images, for which we measure a g-band mag of 15.5 +/- 0.1 (on a 60s image taken at 00:33 UT). Spectroscopic observations are encouraged.\n\nWe thank the staff at San Pedro de Atacama Celestial Explorations observatory for their excellent support.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35686.",
"published": "2024-02-06T01:23:58.723308Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-06T01:23:58.723343Z",
"modified": "2024-02-06T01:23:58.731657Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5980,
"topic": "gcn.circular",
"uuid": "0c308461-54f5-4338-a18c-209dc9d64a2e",
"title": "GRB 240205B: Skynet Optical Afterglow Observations",
"submitter": "Hop gcn.circular",
"authors": "Dylan Dutton at UNC Chapel Hill <ddutton59@gmail.com>",
"data": {
"date": "24/02/06 02:25:46 GMT",
"from": "Dylan Dutton at UNC Chapel Hill <ddutton59@gmail.com>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35687"
},
"title": "GCN CIRCULAR",
"number": "35687",
"subject": "GRB 240205B: Skynet Optical Afterglow Observations"
},
"message_text": "Dylan Dutton, Donovan Schlekat, Logan Selph, Ruide Fu, Megan Dubay, Daniel Reichart, Joshua Haislip, Vladimir Kouprianov report on behalf of the Skynet Robotic Telescope Network at the University of North Carolina at Chapel Hill.\n\nWe observed the field of GRB 240205B with our 0.4m robotic telescopes located in the Cerro Tololo Inter-American Observatory, Chile. The observation began at 00:42:54 UTC on Feb 05 2024, approximately 2.5 hours after the trigger reported by Fermi (GCN 35682) and SWIFT (Palmer et al., GCN 35683).\n\nWe obtained multiple exposures in the B, V, R, and I filters. Exposure lengths were calculated using our automated exposure length scaling model.\n\nWe clearly detect the optical afterglow reported by MASTER (Lipunov et al., GCN 35684) and BOOTES-7 (GCN 35686). The coordinates are within the uncertainty radius of the Swift localization and consistent with the coordinates reported by MASTER (Lipunov et al., GCN 35684):\nR.A. (J2000): 23:25:50.12\nDec. (J2000): -55:07:05.5\n\nWe report the photometry below. We estimate a spectral index of -1.\n\nExpLen | Filter | Mag | Mag Error | MJD\n------------------------------------------------\n223.98 | B | 16.12 | 0.017 | 60346.030\n284.45 | B | 16.12 | 0.017 | 60346.031\n233.30 | V | 15.74 | 0.009 | 60346.032\n100.85 | R | 15.49 | 0.010 | 60346.034\n298.28 | V | 15.86 | 0.009 | 60346.035\n145.94 | R | 15.66 | 0.011 | 60346.048\n265.82 | B | 16.31 | 0.012 | 60346.049\n113.75 | I | 15.33 | 0.019 | 60346.049\n272.02 | V | 15.94 | 0.008 | 60346.052\n131.13 | R | 15.76 | 0.010 | 60346.065\n391.41 | V | 16.11 | 0.008 | 60346.065\n\nOur images have been calibrated using stars from the APASS catalog.\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35687.",
"published": "2024-02-06T02:25:58.332358Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-06T02:25:58.332395Z",
"modified": "2024-02-06T02:25:58.340486Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6592,
"topic": "gcn.circular",
"uuid": "f5cc1938-c1ca-435f-af87-8d8f0cf4407b",
"title": "GRB 240415A: SAO RAS optical observations",
"submitter": "Hop gcn.circular",
"authors": "Moskvitin Alexander at SAO RAS <mosk@sao.ru>",
"data": {
"date": "24/04/15 21:04:13 GMT",
"from": "Moskvitin Alexander at SAO RAS <mosk@sao.ru>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/36122"
},
"title": "GCN CIRCULAR",
"number": "36122",
"subject": "GRB 240415A: SAO RAS optical observations"
},
"message_text": "A. Moskvitin, A. Vinokurov, A. Sarkisian (SAO RAS), N. Pankov (HSE, IKI),\nA. Pozanenko (IKI), report on behalf of GRB follow-up team.\n\nWe observed the field of the GRB 240415A (Fermi GBM team, GCN 36107; Moss\net al., GCN 36108, Evans et al., GCN 36109) with the BTA, 6-m telescope of\nSAO RAS, equipped with the Scorpio-2 multi-mode focal reducer (Afanasiev &\nMoiseev, 2011, BaltA, 20, 363). We obtained series of 30 and 60 sec images\nin VRI bands on April 15, 17:38:12--18:05:08 UT.\n\nThe OT (Pankov et al., GCNs 36118; 36121) is clearly detected in the\nstacked frames of each band. Preliminary photometry of OT: R = 21.19 +/-\n0.15 (17:39:08--18:03:53 UT, t_mid - T0 = 0.4754 days = 11.4104 hours). The\nmagnitudes were calibrated using R2 magnitudes of nearby USNO-B1.0 stars.\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/36122.",
"published": "2024-04-15T21:04:36.577070Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-04-15T21:04:36.577084Z",
"modified": "2024-04-15T21:04:36.586332Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5994,
"topic": "gcn.circular",
"uuid": "78680393-f13b-4a48-8242-ce40cdec9e19",
"title": "Konus-Wind detection of GRB 240205B (long / very soft)",
"submitter": "Hop gcn.circular",
"authors": "Dmitry Frederiks at Ioffe Institute <fred@mail.ioffe.ru>",
"data": {
"date": "24/02/07 17:14:19 GMT",
"from": "Dmitry Frederiks at Ioffe Institute <fred@mail.ioffe.ru>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35701"
},
"title": "GCN CIRCULAR",
"number": "35701",
"subject": "Konus-Wind detection of GRB 240205B (long / very soft)"
},
"message_text": "D. Frederiks, A.Lysenko, A. Ridnaia, D. Svinkin,\nA. Tsvetkova, M. Ulanov, and T. Cline,\non behalf of the Konus-Wind team, report:\n\nThe long GRB 240205B (Fermi GBM observation:\nFermi GBM team, GCN 35682; Fletcher et al., GCN 35693;\nSwift detection: Moss et al., GCN 35683;\nGECAM detection: Zhang et al., GCN 35689;\nCALET detection: Sakamoto et al., GCN 35697)\ntriggered Konus-Wind (KW) at T0=79986.680 s UT (22:13:06.680).\n\nThe burst light curve shows multiple overlapping pulses\nin the interval from ~T0-5 s to ~T0+57 s,\nwith the brightest peak around ~T0+36 s.\nThe emission is seen up to ~1 MeV.\n\nThe Konus-Wind light curve of this GRB is available at\nhttp://www.ioffe.ru/LEA/GRBs/GRB240205_T79986/\n\nAs observed by Konus-Wind, the burst had\na total fluence of (3.22 ± 0.18)x10^-5 erg/cm^2 and\na 64-ms peak energy flux, measured from T0+36.352 s,\nof (7.38 ± 0.87)x10^-6 erg/cm^2/s (both in the 20 keV - 10 MeV energy range).\n\nA time-integrated spectrum (measured from T0 to T0+49.408 s)\nis best fit in the 20 keV - 1.5 MeV range\nby a GRB (Band) function with the following model parameters:\nthe low-energy photon index alpha = -1.80 (-0.08,+0.09),\nthe high energy photon index beta = -3.20 (-6.80,+0.35),\nthe peak energy Ep = 27 (-16,+10) keV,\nchi2 = 28/49 dof.\n\nA spectrum near the peak count rate (measured from T0+33.024 to T0+41.216 s)\nis best fit in the 20 keV - 15 MeV range by a CPL model\nwith alpha = -1.70(-0.10,+0.11) and Ep = 49(-10,+8) keV (chi2 = 64/62 dof).\nFitting this spectrum by a Band function yields the same values of alpha and Ep,\nand an upper limit on the high energy photon index beta of -3.5 (chi2 = 64/62 dof).\n\nAssuming the redshift z=0.824 (Fausey et al., GCN 35698)\nand a standard cosmology with H_0 = 67.3 km/s/Mpc, Omega_M = 0.315,\nand Omega_Lambda = 0.685 (Planck Collaboration, 2014),\nwe estimate the burst isotropic energy release E_iso to (6.1 ± 0.3)x10^52 erg,\nthe isotropic peak luminosity L_iso to (2.6 ± 0.5)x10^52 erg/s,\nthe rest-frame peak energy of the time-integrated spectrum Ep,i,z to ~49 keV,\nand the rest-frame peak energy at the peak of the emission Ep,p,z to ~89 keV.\nWith the obtained estimates, GRB 240205B is a soft-spectrum outlier in\nboth 'Amati' and 'Yonetoku' relations derived for the sample of >300 long\nKW GRBs with known redshifts (Tsvetkova et al., 2017; Tsvetkova et al., 2021),\nsee http://www.ioffe.ru/LEA/GRBs/GRB240205_T79986/GRB240205B_rest_frame.pdf\n\n\nAll the quoted errors are estimated at the 90% confidence level.\nAll the presented results are preliminary.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35701.",
"published": "2024-02-07T17:14:31.702638Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-07T17:14:31.702665Z",
"modified": "2024-02-07T17:14:31.708919Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6011,
"topic": "gcn.circular",
"uuid": "12e58b44-9c05-4ee1-8dde-eb95de7bd698",
"title": "GRB 240213A: Fermi GBM Final Real-time Localization",
"submitter": "Hop gcn.circular",
"authors": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
"data": {
"date": "24/02/13 20:32:08 GMT",
"from": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35718"
},
"title": "GCN CIRCULAR",
"number": "35718",
"subject": "GRB 240213A: Fermi GBM Final Real-time Localization"
},
"message_text": "The Fermi GBM team reports the detection of a likely LONG GRB\n\nAt 20:11:09 UT on 13 Feb 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240213A (trigger 729547874.78288 / 240213841).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 166.4, Dec = -20.5 (J2000 degrees, equivalent to J2000 11h 05m, -20d 30'), with a statistical uncertainty of 1.6 degrees.\n\nThe angle from the Fermi LAT boresight is 112.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240213841/quicklook/glg_skymap_all_bn240213841.png\n\nThe HEALPix FITS file, including the estimated localization systematic, can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240213841/quicklook/glg_healpix_all_bn240213841.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240213841/quicklook/glg_lc_medres34_bn240213841.gif\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35718.",
"published": "2024-02-13T20:32:20.619398Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-13T20:32:20.619414Z",
"modified": "2024-02-13T20:32:20.629377Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6012,
"topic": "gcn.circular",
"uuid": "6697181f-2727-4253-8019-6dc108d4a9ac",
"title": "Fermi GRB 240213A: Global MASTER-Net observations report",
"submitter": "Hop gcn.circular",
"authors": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"data": {
"date": "24/02/13 20:46:19 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35719"
},
"title": "GCN CIRCULAR",
"number": "35719",
"subject": "Fermi GRB 240213A: Global MASTER-Net observations report"
},
"message_text": "V. Lipunov, V.Kornilov, E. Gorbovskoy, K. Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, V.Senik, D. Vlasenko,\nG.Antipov, D.Zimnukhov, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D. Cheryasov, Ya.Kechin, Yu.Tselik, A. Sosnovskij\n(Lomonosov Moscow State University, SAI, Physics Department),\n\nR. Podesta, C.Lopez, F. Podesta, C.Francile\n(Observatorio Astronomico Felix Aguilar OAFA),\n\nR. Rebolo, M. Serra\n(The Instituto de Astrofisica de Canarias),\n\nD. Buckley\n(South African Astronomical Observatory),\n\nO.A. Gress, N.M. Budnev, O.Ershova\n(Irkutsk State University, API),\n\nL.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez,\nA.R.Corella, L.H.Rodriguez\n(INAOE, Guillermo Haro Astrophysics Observatory),\n\nA. Tlatov, D. Dormidontov\n(Kislovodsk Solar Station of the Pulkovo Observatory),\n\nV. Yurkov, A. Gabovich\n(Blagoveschensk Educational State University)\n\nMASTER-Amur robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Blagoveshchensk State Pedagogical University) started inspect of the Fermi GRB 240213A ( Fermi GBM team, GCN 35718) errorbox 547 sec after notice time and 581 sec after trigger time at 2024-02-13 20:20:50 UT, with upper limit up to 15.4 mag. The observations began at zenith distance = 83 deg. The sun altitude is -23.7 deg.\n\nMASTER-SAAO robotic telescope located in South Africa (South African Astronomical Observatory) started inspect of the Fermi GRB 240213A errorbox 564 sec after notice time and 598 sec after trigger time at 2024-02-13 20:21:08 UT, with upper limit up to 19.5 mag. The observations began at zenith distance = 53 deg. The sun altitude is -31.8 deg.\n\nMASTER-Tunka robotic telescope located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the Fermi GRB 240213A errorbox 841 sec after notice time and 875 sec after trigger time at 2024-02-13 20:25:45 UT, with upper limit up to 18.8 mag. The observations began at zenith distance = 75 deg. The sun altitude is -37.2 deg.\n\nThe galactic latitude b = 36 deg., longitude l = 273 deg.\n\n\nReal time updated cover map and OT discovered available here:\nhttps://master.sai.msu.ru/site/master2/observ.php?id#77781\n\nWe obtain a following upper limits.\n\nTmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n 641 | 2024-02-13 20:20:50 | MASTER-Amur | (11h 07m 11.98s , -20d 31m 49.5s) | C | 120 | 15.4 |\n 628 | 2024-02-13 20:21:08 | MASTER-SAAO | (11h 06m 57.05s , -20d 30m 53.7s) | C | 60 | 19.5 |\n 628 | 2024-02-13 20:21:08 | MASTER-SAAO | (11h 01m 26.58s , -20d 19m 25.9s) | C | 60 | 19.4 |\n 708 | 2024-02-13 20:22:27 | MASTER-SAAO | (11h 06m 56.96s , -20d 30m 52.9s) | C | 60 | 19.5 |\n 708 | 2024-02-13 20:22:27 | MASTER-SAAO | (11h 01m 26.50s , -20d 19m 25.2s) | C | 60 | 19.4 |\n 791 | 2024-02-13 20:23:10 | MASTER-Amur | (11h 07m 14.59s , -20d 30m 39.0s) | C | 140 | 15.4 |\n 788 | 2024-02-13 20:23:47 | MASTER-SAAO | (11h 06m 56.88s , -20d 30m 52.3s) | C | 60 | 19.3 |\n 788 | 2024-02-13 20:23:47 | MASTER-SAAO | (11h 01m 26.41s , -20d 19m 24.9s) | C | 60 | 19.4 |\n 906 | 2024-02-13 20:25:45 | MASTER-Tunka | (11h 05m 09.88s , -20d 06m 52.1s) | C | 60 | 18.4 |\n 966 | 2024-02-13 20:25:45 | MASTER-Tunka | (11h 05m 09.88s , -20d 06m 52.1s) | C | 180 | 18.8 | Coadd\n 965 | 2024-02-13 20:25:50 | MASTER-Amur | (11h 07m 07.90s , -20d 31m 27.1s) | C | 170 | 15.1 |\n 969 | 2024-02-13 20:26:48 | MASTER-Tunka | (11h 05m 10.00s , -20d 06m 51.6s) | C | 60 | 18.4 |\n 1032 | 2024-02-13 20:27:51 | MASTER-Tunka | (11h 05m 10.11s , -20d 06m 51.4s) | C | 60 | 18.3 |\n 1095 | 2024-02-13 20:28:55 | MASTER-Tunka | (11h 05m 10.20s , -20d 06m 50.6s) | C | 60 | 18.2 |\n 1155 | 2024-02-13 20:28:55 | MASTER-Tunka | (11h 05m 10.19s , -20d 06m 50.7s) | C | 180 | 18.8 | Coadd\n 1160 | 2024-02-13 20:29:00 | MASTER-Amur | (11h 07m 07.37s , -20d 30m 33.7s) | C | 180 | 14.3 |\n 1159 | 2024-02-13 20:29:58 | MASTER-Tunka | (11h 05m 10.31s , -20d 06m 50.4s) | C | 60 | 18.3 |\n 1222 | 2024-02-13 20:31:01 | MASTER-Tunka | (11h 05m 10.38s , -20d 06m 49.8s) | C | 60 | 18.3 |\n 1360 | 2024-02-13 20:32:19 | MASTER-Amur | (11h 07m 11.73s , -20d 31m 38.6s) | C | 180 | 14.0 |\n 1349 | 2024-02-13 20:33:08 | MASTER-Tunka | (11h 05m 10.60s , -20d 06m 48.8s) | C | 60 | 18.3 |\n 1409 | 2024-02-13 20:33:08 | MASTER-Tunka | (11h 05m 10.59s , -20d 06m 48.6s) | C | 180 | 18.7 | Coadd\n 1412 | 2024-02-13 20:34:11 | MASTER-Tunka | (11h 05m 10.65s , -20d 06m 48.8s) | C | 60 | 18.3 |\n 1559 | 2024-02-13 20:35:38 | MASTER-Amur | (11h 07m 06.10s , -20d 32m 41.8s) | C | 180 | 13.6 |\n 1544 | 2024-02-13 20:36:23 | MASTER-Tunka | (11h 05m 11.14s , -20d 05m 45.1s) | C | 60 | 18.1 |\n 1670 | 2024-02-13 20:38:29 | MASTER-Tunka | (11h 05m 11.38s , -20d 05m 44.6s) | C | 60 | 18.5 |\n 1733 | 2024-02-13 20:39:33 | MASTER-Tunka | (11h 05m 11.46s , -20d 05m 44.6s) | C | 60 | 18.5 |\nFilter C is a clear (unfiltred) band.\n\n\nThe observation and reduction will continue.\nThe message may be cited.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35719.",
"published": "2024-02-13T20:46:31.218851Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-13T20:46:31.218868Z",
"modified": "2024-02-13T20:46:31.227800Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5981,
"topic": "gcn.circular",
"uuid": "df1c70f2-6fe7-4e60-b932-dc1706f59486",
"title": "GRB 240204A: Swift-BAT refined analysis",
"submitter": "Hop gcn.circular",
"authors": "Sibasish Laha at GSFC <sibasish.laha@nasa.gov>",
"data": {
"date": "24/02/06 02:39:23 GMT",
"from": "Sibasish Laha at GSFC <sibasish.laha@nasa.gov>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35688"
},
"title": "GCN CIRCULAR",
"number": "35688",
"subject": "GRB 240204A: Swift-BAT refined analysis"
},
"message_text": "T. Sakamoto (AGU),S. D. Barthelmy (GSFC),\nH. A. Krimm (NSF), S. Laha (GSFC/UMBC),\nA. Y. Lien (U Tampa), C. B. Markwardt (GSFC),\nM. J. Moss (GSFC), D. M. Palmer (LANL),\nT. Parsotan (GSFC), M. Stamatikos (OSU)\n(i.e. the Swift-BAT team):\n\nSwift-BAT triggered on GRB 240204A at 15:07:50.63 UT on 2024-02-04.\nSwift slewed immediately, but didnât have initial BAT information due to a telemetry gap.\nUsing the data set from T-239 to T+346 sec from the recent telemetry downlink,\nwe report further analysis of BAT GRB 240204A (trigger #1212898)\n(Cenko, et al., GCN Circ. 35666). The BAT ground-calculated position is\nRA, Dec = 104.290, 1.078 deg which is\n RA(J2000) = 06h 57m 09.6s\n Dec(J2000) = +01d 04' 41.5\"\nwith an uncertainty of 1.2 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 9%.\n\nThe BAT light curve shows a complex structure with a duration of ~ 20 sec.\nT90 (15-350 keV) is 18.93 +- 2.06 sec (estimated error including systematics).\n\nThe time-averaged spectrum from T-22.96 to T+8.96 sec is best fit by a power law\nwith an exponential cutoff. This fit gives a photon index 1.21 +- 0.28,\nand Epeak of 67.8 +- 12.6 keV (chi squared 41.34 for 56 d.o.f.). For this\nmodel the total fluence in the 15-150 keV band is 1.0 +- 0.0 x 10^-05 erg/cm2\nand the 1-sec peak flux measured from T+0.08 sec in the 15-150 keV band is\n22.1 +- 1.5 ph/cm2/sec. A fit to a simple power law gives a photon index\nof 1.80 +- 0.06 (chi squared 55.74 for 57 d.o.f.). All the quoted errors\nare at the 90% confidence level.\n\nThe results of the batgrbproduct analysis are available at\nhttp://gcn.gsfc.nasa.gov/notices_s/1212898/BA/\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35688.",
"published": "2024-02-06T02:39:35.423851Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-06T02:39:35.423870Z",
"modified": "2024-02-06T02:39:35.431652Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5982,
"topic": "gcn.circular",
"uuid": "368fcc03-f359-4c36-830a-00d910239a57",
"title": "GRB 240205B: GECAM detection of a long burst",
"submitter": "Hop gcn.circular",
"authors": "wenlongzhang2018@163.com",
"data": {
"date": "24/02/06 03:12:10 GMT",
"from": "wenlongzhang2018@163.com",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35689"
},
"title": "GCN CIRCULAR",
"number": "35689",
"subject": "GRB 240205B: GECAM detection of a long burst"
},
"message_text": "Wen-Long Zhang, Shao-Lin Xiong, Chen-Wei Wang report on behalf of the GECAM team:\n\nGECAM-B was triggered in-flight by a long burst, GRB 240205B, at 2024-02-05T22:13:08.400 UTC (T0), which was also detected by Fermi/GBM (GCN #35682), Swift/BAT (GCN #35683), INTEGRAL_SPIACS (trig# 10513) and CALET/GBM (trig# 1391206207). As the science data arrived, GECAM-B was also triggered on-ground by this burst with the automatic processing pipeline.\n\nAccording to the GECAM-B light curves, this burst shows multi-pulses with a total duration of ~50 sec. Interestingly, we note that there is a bright and narrow peak at T0+ 37.5 s.\n\nAccording to the in-flight software, GECAM-B localized this burst to the following position (J2000):\nRa: 344.14 deg\nDec: -53.02 deg\nErr: 8.74 deg (1-sigma, statistical only)\nThis GECAM-B localization is consistent with that of Swift/BAT and Fermi/GBM within the error.\n\nWe note that these results are very preliminary. Refined analysis will be reported later.\n\nGravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM) mission originally consists of two microsatellites (GECAM-A and GECAM-B) launched in December 2020. As the third member of GECAM constellation, GECAM-C was launched onboard SATech-01 experimental satellite in July 2022. GECAM mission is funded by the Chinese Academy of Sciences (CAS).\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35689.",
"published": "2024-02-06T03:12:21.898807Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-06T03:12:21.898835Z",
"modified": "2024-02-06T03:12:21.907635Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6593,
"topic": "gcn.circular",
"uuid": "fc944c44-e441-419d-93e6-03dc44e2c22c",
"title": "GRB 240415A: optical afterglow detection from the INAF Asiago Observatory",
"submitter": "Hop gcn.circular",
"authors": "Paolo D'Avanzo at INAF-OAB <pda.davanzo@gmail.com>",
"data": {
"date": "24/04/15 21:17:04 GMT",
"from": "Paolo D'Avanzo at INAF-OAB <pda.davanzo@gmail.com>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/36123"
},
"title": "GCN CIRCULAR",
"number": "36123",
"subject": "GRB 240415A: optical afterglow detection from the INAF Asiago Observatory"
},
"message_text": "A. Reguitti (INAF-OAB / INAF-OAPd), P. D'Avanzo (INAF-OAB), L. Tomasella (INAF -OAPd), E. Cappellaro (INAF -OAPd),\nreport on behalf of the CIBO and of the GRAWITA collaborations:\n\nWe carried out follow-up optical observations of GRB 240415A (Fermi GBM Team, GCN Circ. #36107; Moss et al., GCN Circ. #36108)\nfrom the INAF - Padova Astronomical Observatory located in Asiago (Italy) with the 67/92 Schmidt telescope starting on 2024-04-15 at 19:13:10 UT\n(~ 12.8 hours after the burst) with the r-sdss filter.\n\nIn our stacked image the optical afterglow (Pankov et al., GCN Circ. #36118; Pankov et al., GCN Circ. #36121; Moskvitin et al., GCN Circ. #36122)\nis detected.\nFrom preliminary analysis we estimate a magnitude of r = 21.0 +/- 0.3 (AB; calibrated against r band of the PanSTARRS catalog).\n\nFurther observations are ongoing.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/36123.",
"published": "2024-04-15T21:17:19.817438Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-04-15T21:17:19.817455Z",
"modified": "2024-04-15T21:17:19.825138Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5985,
"topic": "gcn.circular",
"uuid": "f3c49541-af49-42f2-a360-be3c51afa9ba",
"title": "GRB 240204A: AstroSat CZTI detection",
"submitter": "Hop gcn.circular",
"authors": "Varun Bhalerao at IIT Bombay <varunb@iitb.ac.in>",
"data": {
"date": "24/02/06 14:39:17 GMT",
"from": "Varun Bhalerao at IIT Bombay <varunb@iitb.ac.in>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35692"
},
"title": "GCN CIRCULAR",
"number": "35692",
"subject": "GRB 240204A: AstroSat CZTI detection"
},
"message_text": "J. Joshi (IUCAA), G. Waratkar (IITB), A. Vibhute (IUCAA), V. Bhalerao (IITB), D. Bhattacharya (Ashoka University/IUCAA), A. R. Rao (IUCAA/TIFR), and S. Vadawale (PRL) report on behalf of the AstroSat CZTI collaboration:\n\nAnalysis of AstroSat CZTI data with the CIFT framework (Sharma et al., 2021, JApA, 42, 73) showed the detection of a long-duration GRB 240204A which was also detected by Fermi-GBM (Fermi GBM Team, GCN Circ. 35664), and Swift (Cenko et al., GCN Circ. 35666).\n\nThe source was clearly detected in the CZT detectors in the 20-200 keV energy range. The light curve peaks at 2024-02-04 15:07:49.50 UTC. The measured peak count rate associated with the burst is 201 (+40 -25) counts/s above the background in the combined data of four quadrants, with a total of 1125 (+193 -176) counts. The local mean background count rate was 308 (+5 -6) counts/s. Using cumulative rates, we measure a T90 of 10.5 (+1.1 -2.5) s.\n\nThe source was also clearly detected in the CsI anticoincidence (Veto) detector in the 100-500 keV energy range. The light curve peaks at 2024-02-04 15:07:49.4 UTC. The measured peak count rate associated with the burst is 388 (+65, -60) counts/s above the background in the combined data of all quadrants, with a total of 2008 (+336, -351) counts. The local mean background count rate was 1276 (+6, -6) counts/s. We measure a T90 of 8.5 (+3.1, -2.1) s from the cumulative Veto light curve.\n\nCZTI is built by a TIFR-led consortium of institutes across India, including VSSC, URSC, IUCAA, SAC, and PRL. The Indian Space Research Organisation funded, managed, and facilitated the project.\n\nCZTI GRB detections are reported regularly on the payload site at: http://astrosat.iucaa.in/czti/?q=grb\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35692.",
"published": "2024-02-06T14:39:33.171189Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-06T14:39:33.171217Z",
"modified": "2024-02-06T14:39:33.178999Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5986,
"topic": "gcn.circular",
"uuid": "34fd247f-c651-4ba3-aa61-705319b35b13",
"title": "GRB 240205B: Fermi GBM Observation",
"submitter": "Hop gcn.circular",
"authors": "Cori Fletcher at USRA <cfletcher@usra.edu>",
"data": {
"date": "24/02/06 15:05:19 GMT",
"from": "Cori Fletcher at USRA <cfletcher@usra.edu>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35693"
},
"title": "GCN CIRCULAR",
"number": "35693",
"subject": "GRB 240205B: Fermi GBM Observation"
},
"message_text": "C. Fletcher (USRA) and C. Meegan (UAH) report on behalf of\nthe Fermi Gamma-ray Burst Monitor Team:\n\n\"At 22:13:08.17 UT on 05 February 2024, the Fermi Gamma-ray Burst Monitor (GBM)\ntriggered and located GRB 240205B (trigger 728863993/240205926).\nwhich was also detected by Swift BAT (M. J. Moss et al. 2024, GCN 35683) and GECAM (W. Zhang et al. 2024, GCN 35689).\nThe Fermi GBM Real-time Final Localization (GCN 35682) is consistent with the Swift BAT position.\n\nThis burst was also independently detected by INTEGRAL SPI-ACS.\n\nThe angle from the Fermi LAT boresight is 112 degrees.\n\nThe GBM light curve consists of multiple peaks with a duration (T90)\nof about 47 s (50-300 keV). The time-averaged spectrum\nfrom T0-3.3 to T0+54.0 s is best fit by\na Band function with Epeak = 34 +/- 0.8 keV,\nalpha = -1.69 +/- 0.02, and beta = -2.78 +/- 0.08.\n\nThe event fluence (10-1000 keV) in this time interval is\n(4.77 +/- 0.05)E-05 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+38 s in the 10-1000 keV band is 81.2 +/- 0.9 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog:\nhttps://heasarc.gsfc.nasa.gov/W3Browse/fermi/fermigbrst.html\n\nFor Fermi GBM data and info, please visit the official Fermi GBM Support Page:\nhttps://fermi.gsfc.nasa.gov/ssc/data/access/gbm/\"\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35693.",
"published": "2024-02-06T15:05:36.824579Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-06T15:05:36.824593Z",
"modified": "2024-02-06T15:05:36.830453Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5999,
"topic": "gcn.circular",
"uuid": "b9cc611d-5c1c-4569-ae62-96ce06e47478",
"title": "Swift Trigger 1213872 is not an astrophysical event",
"submitter": "Hop gcn.circular",
"authors": "Boris Sbarufatti at INAF-OAB <boris.sbarufatti@inaf.it>",
"data": {
"date": "24/02/08 16:42:15 GMT",
"from": "Boris Sbarufatti at INAF-OAB <boris.sbarufatti@inaf.it>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35706"
},
"title": "GCN CIRCULAR",
"number": "35706",
"subject": "Swift Trigger 1213872 is not an astrophysical event"
},
"message_text": "\nM. J. Moss (GSFC), K. L. Page (U Leicester), B. Sbarufatti (INAF-OAB)\nand M. A. Williams (PSU) report on behalf of the Neil Gehrels Swift\nObservatory Team:\n\nSwift-BAT trigger 1213872 is also related to the ongoing star tracker loss-of-lock event, and is not astrophysically of interest.\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35706.",
"published": "2024-02-08T16:42:27.757845Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-08T16:42:27.757867Z",
"modified": "2024-02-08T16:42:27.772135Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6000,
"topic": "gcn.circular",
"uuid": "e4d86d13-c4b2-4be1-b285-76e2be5a2636",
"title": "GRB 240205A (short): Glowbug gamma-ray detection",
"submitter": "Hop gcn.circular",
"authors": "C.C. Cheung at Naval Research Lab <Teddy.Cheung@nrl.navy.mil>",
"data": {
"date": "24/02/08 21:34:45 GMT",
"from": "C.C. Cheung at Naval Research Lab <Teddy.Cheung@nrl.navy.mil>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35707"
},
"title": "GCN CIRCULAR",
"number": "35707",
"subject": "GRB 240205A (short): Glowbug gamma-ray detection"
},
"message_text": "C.C. Cheung, R. Woolf, M. Kerr, J.E. Grove (NRL), A. Goldstein (USRA), C.A. Wilson-Hodge, D. Kocevski (MSFC), and M.S. Briggs (UAH) report:\n \nThe Glowbug gamma-ray telescope [1,2], operating on the International Space Station, reports the detection of the short GRB 240205A, which was also detected by Fermi/GBM (GCN 35679) and Konus-Wind (Trigger Time 20:26:26.689).\n \nUsing an adaptive window with a resolution of 32-ms, the burst onset is determined to be 2024-02-05 20:26:29.640 with a duration of 0.29 s and a total significance of about 24.0 sigma. The light curve comprises a single peak.\n \nUsing a standard power-law function with an exponential high-energy cutoff [3] to model the emission over this duration results in a photon index dN/dE~E^x of x=1.0 and a cutoff energy (\"Epeak\") of 310 keV. The modeled 10-10000 keV fluence is 4.2e-07 erg/cm^2.\n \nThe analysis results presented here are preliminary and use a response function that lacks a detailed characterization of the surrounding passive structure of the ISS.\n \nGlowbug is a NASA-funded technology demonstrator for sensitive, low-cost gamma-ray transient telescopes developed, built, and operated by the U.S. Naval Research Laboratory (NRL) with support from the University of Alabama in Huntsville, USRA, and NASA MSFC. It was launched on 2023 March 15 aboard the Department of Defense Space Test Programâs STP-H9 to the ISS. The detector comprises 12 large-area (15 cm x 15 cm) CsI:Tl panels covering the surface of a half cube, and two hexagonal (5-cm diameter, 10-cm length) CLLB scintillators, giving it a large field of view (instantaneous FoV ~2/3 sky) over a wide energy band of 50 keV to >2 MeV.\n \n[1] Grove, J.E. et al. 2020, Proc. Yamada Conf. LXXI, arXiv:2009.11959\n[2] Woolf, R.S. et al. 2022, Proc. SPIE, 12181, id. 121811O\n[3] Goldstein, A. et al. 2020, ApJ 895, 40, arXiv :1909.03006\n \nDistribution Statement A: Approved for public release. Distribution is unlimited.\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35707.",
"published": "2024-02-08T21:35:01.170791Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-08T21:35:01.170819Z",
"modified": "2024-02-08T21:35:01.180421Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6013,
"topic": "gcn.circular",
"uuid": "5fc49957-5ac2-47da-865f-6e44372187f9",
"title": "GRB 240213A: BALROG localization (Fermi Trigger / GRB 240213841)",
"submitter": "Hop gcn.circular",
"authors": "Jochen Greiner at MPE <jcgrog@mpe.mpg.de>",
"data": {
"date": "24/02/13 20:59:44 GMT",
"from": "Jochen Greiner at MPE <jcgrog@mpe.mpg.de>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35720"
},
"title": "GCN CIRCULAR",
"number": "35720",
"subject": "GRB 240213A: BALROG localization (Fermi Trigger / GRB 240213841)"
},
"message_text": "T. Preis, B. Biltzinger, J. Burgess & J. Greiner (all MPE Garching) report:\n\nThe public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger\n at 20:11:09 on 13 Feb. 2024 were automatically fitted for spectrum\nand sky location with BALROG (Burgess et al. 2018, MNRAS 476, 1427;\nBerlato et al. 2019, ApJ 873, 60).\n\nThe best-fit position is:\nRA(2000.0) = 166.0 deg\nDecl.(2000.0) = -18.3 deg\nThe 1 sigma statistical error radius is 3.1 deg.\nWe estimate an additional systematic error of 1 deg.\n\nFurther details are available at:\nhttps://grb.mpe.mpg.de/grb/GRB240213841/\n\nThe Healpix map can be downloaded from:\nhttps://grb.mpe.mpg.de/grb/GRB240213841/healpix\n\nThe location parameters are available as JSON at:\nhttps://grb.mpe.mpg.de/grb/GRB240213841/json\n\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35720.",
"published": "2024-02-13T20:59:56.477795Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-13T20:59:56.477814Z",
"modified": "2024-02-13T20:59:56.486453Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5989,
"topic": "gcn.circular",
"uuid": "5a8b594c-e70f-44ff-86a3-d2ea469240e4",
"title": "GRB 240205B: BOOTES-6 optical afterglow follow-up",
"submitter": "Hop gcn.circular",
"authors": "Alberto Castro-Tirado at Inst.de Astro. de Andalucia <ajct@iaa.es>",
"data": {
"date": "24/02/06 23:51:09 GMT",
"from": "Alberto Castro-Tirado at Inst.de Astro. de Andalucia <ajct@iaa.es>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35696"
},
"title": "GCN CIRCULAR",
"number": "35696",
"subject": "GRB 240205B: BOOTES-6 optical afterglow follow-up"
},
"message_text": "E. Fernandez-Garcia, I. Perez-Garcia, M.D. Caballero-Garcia, S. Guziy, S.-Y. Wu, I. Olivares, R. Sanchez-Ramirez and A. J. Castro-Tirado (IAA-CSIC, Granada), Y.-D. Hu (INAF-OAB Brera), P. J. Meintjes and H. J. van Heerden (UFS, South Africa), A. Martin-Carrillo and L. Hanlon (UCD, Ireland), A. Castellon, S. Castillo, A. J. Reina and C. J. Perez del Pulgar (UMA, Malaga), on behalf of a larger collaboration, report:\n\nFollowing the detection of GRB 240205B by Fermi (GCNC 35682, Fletcher et al. GCNC 35693), Swift (Palmer et al., GCNC 35683), INTEGRAL_SPIACS (trig# 10513), CALET/GBM (trig# 1391206207) and GECAM (Zhang et al., GCNC 35689), the 0.6m BOOTES-6/DPR robotic telescope at Boyden Observatory (South Africa) continued the observation of this burst, starting on Feb 6 at 18:13 UT (i.e. ~20 h after trigger), as part of the monitoring conducted by the BOOTES Global Network of Robotic Telescopes. Images were gathered in different optical bands (griz). The optical afterglow (Lipunov et al. GCNC 35684, Fernandez-Garcia et al. GCNC 35686, Dutton et al. GCNC 35687, Ferro et al. GCNC 35694) is still detected in all filters. We measure a g-band mag of 18.1 ± 0.1 (on a 300s image taken at 18:30 UT). Spectroscopic observations, in spite of the low elevation of the target after sunset, are encouraged.\n\nWe thank the staff at Boyden Observatory for their excellent support.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35696.",
"published": "2024-02-06T23:51:22.001289Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-06T23:51:22.001302Z",
"modified": "2024-02-06T23:51:22.014828Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5990,
"topic": "gcn.circular",
"uuid": "4a360ddc-b303-476b-9da5-f4aa4a595ccb",
"title": "GRB 240205B: CALET Gamma-Ray Burst Monitor detection",
"submitter": "Hop gcn.circular",
"authors": "Yuta Kawakubo at Louisiana State University <kawakubo1@lsu.edu>",
"data": {
"date": "24/02/07 01:32:14 GMT",
"from": "Yuta Kawakubo at Louisiana State University <kawakubo1@lsu.edu>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35697"
},
"title": "GCN CIRCULAR",
"number": "35697",
"subject": "GRB 240205B: CALET Gamma-Ray Burst Monitor detection"
},
"message_text": "T. Sakamoto, A. Yoshida, S. Sugita (AGU), Y. Kawakubo (LSU),\nK. Yamaoka (Nagoya U), S. Nakahira (JAXA),\nY. Asaoka (ICRR), S. Torii, Y. Akaike, K. Kobayashi (Waseda U),\nY. Shimizu, T. Tamura (Kanagawa U), N. Cannady (GSFC/UMBC),\nM. L. Cherry (LSU), S. Ricciarini (U of Florence),\nP. S. Marrocchesi (U of Siena),\nand the CALET collaboration:\n\nThe long GRB 240205B (Fermi GBM Final Real-time Localization:\nFermi GBM team, GCN Circ. 35682; Swift detection: Moss et al.,\nGCN Circ. 35683; INTEGRAL SPI-ACS Trigger #10513; GECAM\ndetection: Zhang et al., GCN Circ. 35689; Fermi GBM Observation:\nFletcher et al., GCN Circ. 35693) triggered the CALET Gamma-ray\nBurst Monitor (CGBM) at 22:13:45.98 UTC on 5 February 2024\n(http://cgbm.calet.jp/cgbm_trigger/flight/1391206207/).\nThe burst signal was seen by only the SGM detector.\n\nBased on the GRB position reported by Swift-BAT (referenced to\nGCN Circ. 35683), the angle from the SGM bore-sight is 106\ndegrees, and the direction was blocked by the structures of the\nInternational Space Station. Although the observed light curve was\naffected by the structures, SGM detected the brightest peak which\nwas observed by Fermi-GBM, INTEGRAL SPI-ACS, and GECAM.\n\nThe burst light curve shows a single pulse that starts at T+0.0 sec,\npeaks at T+0.4 sec, and ends at T+0.9 sec. The T90 and T50 durations\nmeasured by the SGM data are 0.7 +/- 0.3 sec and 0.2 +/- 0.1 sec\n(40-1000 keV), respectively.\n\nThe ground-processed light curve is available at\n\nhttp://cgbm.calet.jp/cgbm_trigger/ground/1391206207/index.html\n\nThe CALET data used in this analysis are provided by\nthe Waseda CALET Operation Center located at Waseda University.\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35697.",
"published": "2024-02-07T01:32:26.353426Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-07T01:32:26.353442Z",
"modified": "2024-02-07T01:32:26.359562Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5991,
"topic": "gcn.circular",
"uuid": "9d390eb0-7d60-439b-ab0f-6c9a83bd5161",
"title": "GRB 240205B: VLT/X-shooter redshift",
"submitter": "Hop gcn.circular",
"authors": "J. T. Palmerio at Observatoire de Paris - GEPI <jesse.palmerio@obspm.fr>",
"data": {
"date": "24/02/07 11:08:25 GMT",
"from": "J. T. Palmerio at Observatoire de Paris - GEPI <jesse.palmerio@obspm.fr>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35698"
},
"title": "GCN CIRCULAR",
"number": "35698",
"subject": "GRB 240205B: VLT/X-shooter redshift"
},
"message_text": "H. Fausey (GWU), J. T. Palmerio (GEPI/Obs. de Paris & IAP), D. B. Malesani (DAWN/NBI & Radboud Univ.), A. Saccardi (GEPI/Obs. de Paris), L. Izzo (INAF-OACn & DARK/NBI), V. D'Elia (SSDC & INAF-OAR), J. P. U. Fynbo (DAWN/NBI), A. Martin-Carrillo (UCD, Ireland), A. J. Levan (Radboud), N. R. Tanvir (U. Leicester), B. Gompertz (Birmingham) report on behalf of the Stargate collaboration:\n\nWe observed the field of GRB 240205B detected by Fermi-GBM (Fermi GBM Team, GCN 35682), Swift-BAT (Moss et al., GCN 35683), and GECAM (Zhang et al., GCN 35689) using the ESO VLT UT3 (Melipal) equipped with the X-shooter spectrograph. Our spectra cover the wavelength range 3000-21000 AA, and consist of 2 exposures of 600 s each. The observation starting-time was 00:21:26 UT on 2024 Feb 7 (~26 hr after the trigger). Observations were carried out in twilight, at high airmass 2.3 to 2.5.\n\nDespite the low elevation, in a single r-band image taken with the acquisition camera, we clearly detect the optical afterglow (Lipunov et al., GCN 35684; Fernandez-Garcia et al., GCN 35686; Dutton et al., GCN 35687; Ferro et al., GCN 35694; Fernandez-Garcia et al., GCN 35696). We measure r' = 19.05 +/- 0.07 (AB) calibrated against two nearby SkyMapper stars.\n\nIn a preliminary reduction of the spectra, we detect a continuum down to at least 3200 AA implying z < 1.6 from the lack of damped Lyman-alpha absorption. Multiple absorption features are detectd, consistent with being due to Fe II and Mg II at a common redshift z = 0.824. While the modest S/N does not allow to identify any fine-structure lines at this redshift, due to the lack of unidentified features we consider z = 0.824 the likely redshift of GRB 240205B.\n\nWe acknowledge the excellent support from the ESO staff in Paranal in conducting such a challenging observation, in particular Boris Haeussler, Zahed Wahhaj, and Diego Parraguez.\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35698.",
"published": "2024-02-07T11:08:44.265179Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-07T11:08:44.265199Z",
"modified": "2024-02-07T11:08:44.271829Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6014,
"topic": "gcn.circular",
"uuid": "5b24ec5c-67e6-4aed-8b19-ef6edf1791ec",
"title": "GRB 240214A/1H 0451-560: MAXI/GSC detection",
"submitter": "Hop gcn.circular",
"authors": "Hitoshi Negoro at Nihon University/MAXI team <negoro.hitoshi@nihon-u.ac.jp>",
"data": {
"date": "24/02/14 06:50:03 GMT",
"from": "Hitoshi Negoro at Nihon University/MAXI team <negoro.hitoshi@nihon-u.ac.jp>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35721"
},
"title": "GCN CIRCULAR",
"number": "35721",
"subject": "GRB 240214A/1H 0451-560: MAXI/GSC detection"
},
"message_text": "H. Negoro, M. Nakajima (Nihon U.), W. Iwakiri (Chiba U.), T. Mihara (RIKEN),\nK. Kobayashi, M. Tanaka, Y. Soejima, Y. Kudo (Nihon U.),\nT. Kawamuro, S. Yamada, S. Wang, T. Tamagawa, N. Kawai, M. Matsuoka (RIKEN),\nT. Sakamoto, M. Serino, S. Sugita, H. Hiramatsu, H. Nishikawa, A. Yoshida (AGU),\nY. Tsuboi, S. Urabe, S. Nawa, N. Nemoto, E.Goto (Chuo U.), M. Shidatsu,\nY. Niida (Ehime U.), I. Takahashi, M. Niwano, S. Sato, N. Higuchi, Y. Yatsu (Tokyo Tech),\nS. Nakahira, S. Ueno, H. Tomida, M. Ishikawa, S. Ogawa, T. Kurihara (JAXA),\nY. Ueda, K. Setoguchi, T. Yoshitake, Y. Nakatani, Y. Okada (Kyoto U.),\nM. Yamauchi, Y. Hagiwara, Y. Umeki, Y. Otsuki (Miyazaki U.),\nK. Yamaoka (Nagoya U.), Y. Kawakubo (LSU), and M. Sugizaki (NAOC)\n\nThe MAXI/GSC nova alert system triggered on an uncatalogued soft X-ray transient source at\n01:43:39 UT on February 14, 2024. Assuming that the source flux was constant over the transit,\nwe obtain the source position at\n(R.A., Dec) = (73.197 deg, -55.923 deg) = (04 52 47, -55 55 22) (J2000)\nwith a 90% C.L. statistical error of 0.42 deg and an additional systematic uncertainty of\n0.1 deg (90% containment radius).\nThe X-ray flux averaged over the scan was 109 +- 24 mCrab (4.0-10.0keV, 1 sigma error).\nWithout assumptions on the source constancy, we obtain a rectangular error box\nfor the transient source with the following corners:\n(73.301, -55.429) deg = (04 53 12, -55 25 44) (J2000)\n(72.444, -56.103) deg = (04 49 46, -56 06 10) (J2000)\n(74.543, -56.916) deg = (04 58 10, -56 54 57) (J2000)\n(75.381, -56.228) deg = (05 01 31, -56 13 40) (J2000)\n\nThe burst showed a spectral softening during the burst duration of about 30 sec (in the MAXI\nscan window), and the average spectrum is characterized by a power-law with a photon index\nof 2.3 (+0.8, -0.6) at a 90% confidence level.\n\nAn X-ray flux of about 20 mCrab at 2-10 keV was also recognized in the next transit at 03:16 UT.\nThere was no significant excess flux in the previous transit at 00:10 UT, and in the transit\nat 04:49 UT with an upper limit of 20 mCrab for each.\n\nWe note that 1H 0451-560 is located near the center of the error region.\n1H 0451-560 is a short-lived transient X-ray source with a Crab-like spectrum (Kaluzienski 1978,\nIAUC 3174). Thus, 1H 0451-560 is most likely. We also tentatively name the source MAXI J0452-559.\n\nSwift/XRT followup observation is requested.\n\nWe crosspost this content to the Astronomer's Telegram because of the possible nature of the source.\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35721.",
"published": "2024-02-14T06:50:19.212078Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-14T06:50:19.212097Z",
"modified": "2024-02-14T06:50:19.222943Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5992,
"topic": "gcn.circular",
"uuid": "ef5e7d10-77b6-4e29-8360-5f48755c4c78",
"title": "Konus-Wind detection of GRB 240125A",
"submitter": "Hop gcn.circular",
"authors": "Dmitry Svinkin at Ioffe Institute <svinkin@mail.ioffe.ru>",
"data": {
"date": "24/02/07 14:51:18 GMT",
"from": "Dmitry Svinkin at Ioffe Institute <svinkin@mail.ioffe.ru>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35699"
},
"title": "GCN CIRCULAR",
"number": "35699",
"subject": "Konus-Wind detection of GRB 240125A"
},
"message_text": "A. Ridnaia, D. Frederiks, A. Lysenko, D. Svinkin,\nA. Tsvetkova, M. Ulanov, and T. Cline,\non behalf of the Konus-Wind team, report:\n\nThe short-duration GRB 240125A\n(Glowbug gamma-ray detection: Cheung et al., GCN 35630;\nAstroSat CZTI detection: Joshi et al., GCN 35637;\nCALET CGBM detection: Marrocchesi et al., GCN 35639;\nGRBAlpha detection: Dafcikova et al., GCN 35645;\nIPN triangulation: Kozyrev et al., GCN 35652)\ntriggered Konus-Wind at T04503.601 s UT (09:35:03.601).\n\nThe burst light curve shows a multipeaked structure\nwhich starts at ~T0-0.5 s and has a total duration of ~1.0 s.\nThe Konus-Wind light curve of this GRB is available at\nhttp://www.ioffe.ru/LEA/GRBs/GRB240125_T34503/\n\nAs observed by Konus-Wind, the burst\nhad a fluence of 4.79(-1.52,+5.06)x10^-6 erg/cm2,\nand a 16-ms peak flux, measured from T0-0.220 s,\nof 1.13(-0.57,+1.27)x10^-5 erg/cm2/s\n(both in the 20 keV - 10 MeV energy range).\n\nSince the main fraction of the burst emission was detected\nbefore the trigger, the spectral analysis was performed using\nthe KW 3-channel light curve data.\n\nModelling the KW 3-channel time-integrated spectrum\n(measured from T0-0.512 s to T0+0.448 s)\nby a power law with exponential cutoff model:\ndN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep),\nyields alpha = 0.01(-0.59,+1.53) and Ep = 982(-418,+1876) keV.\n\nAll the quoted errors are at the 90% confidence level.\nAll the quoted values are preliminary.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35699.",
"published": "2024-02-07T14:51:37.115782Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-07T14:51:37.115807Z",
"modified": "2024-02-07T14:51:37.123208Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5993,
"topic": "gcn.circular",
"uuid": "c35b82d0-0364-43c1-8844-f5f6f05bc91b",
"title": "GRB 240207A: Fermi GBM Final Real-time Localization",
"submitter": "Hop gcn.circular",
"authors": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
"data": {
"date": "24/02/07 15:30:53 GMT",
"from": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35700"
},
"title": "GCN CIRCULAR",
"number": "35700",
"subject": "GRB 240207A: Fermi GBM Final Real-time Localization"
},
"message_text": "The Fermi GBM team reports the detection of a likely LONG GRB\n\nAt 15:20:18 UT on 7 Feb 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240207A (trigger 729012023.222884 / 240207639).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 162.1, Dec = 51.6 (J2000 degrees, equivalent to J2000 10h 48m, 51d 36'), with a statistical uncertainty of 9.2 degrees.\n\nThe angle from the Fermi LAT boresight is 73.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240207639/quicklook/glg_skymap_all_bn240207639.png\n\nThe HEALPix FITS file, including the estimated localization systematic, can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240207639/quicklook/glg_healpix_all_bn240207639.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240207639/quicklook/glg_lc_medres34_bn240207639.gif\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35700.",
"published": "2024-02-07T15:31:10.019014Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-07T15:31:10.019031Z",
"modified": "2024-02-07T15:31:10.035882Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6594,
"topic": "gcn.circular",
"uuid": "c5596e18-a376-4c6b-896c-f2e8a86d0ab9",
"title": "GRB 240415A: OHP/T193 optical observations",
"submitter": "Hop gcn.circular",
"authors": "Benjamin Schneider at MIT <bschn@mit.edu>",
"data": {
"date": "24/04/15 22:12:13 GMT",
"from": "Benjamin Schneider at MIT <bschn@mit.edu>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/36124"
},
"title": "GCN CIRCULAR",
"number": "36124",
"subject": "GRB 240415A: OHP/T193 optical observations"
},
"message_text": "B. Schneider (MIT), C. Adami, O. Ilbert, N. A. Rakotondrainibe (LAM/Pytheas/AMU), D. Turpin, E. Le Flocâh (CEA Paris-Saclay), A. Saccardi, S. Vergani (GEPI/Obs. de Paris) report on behalf of a larger collaboration:\n\nWe observed the field of the GRB 240415A (Fermi GBM team, GCN 36107; Moss et al., GCN 36108; Evans et al., GCN 36109) and its afterglow candidate (Pankov et al., GCN 36118, GCN 36121; Moskvitin et al., GCN 36122; Reguitti et al., GCN 36123) using the T193cm telescope at Observatoire de Haute-Provence (France) equipped with the MISTRAL spectro-imager. A total of 6 exposures (5x600s + 1x480s) were obtained in the r-band at 20:37:17.5 UT on 2024-04-15 (~14.1h after the trigger). In the combined frame, we clearly detect the optical afterglow and measure the following preliminary magnitude:\n\nr = 21.67 +/- 0.10 mag (AB)\n\nThe photometric calibration was performed using nearby stars from the PanSTARRS catalog and the magnitude is not corrected for Galactic extinction.\n\nWe acknowledge the excellent support from Observatoire de Haute-Provence and in particular Jean Balcaen for the MISTRAL observations.\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/36124.",
"published": "2024-04-15T22:12:31.555296Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-04-15T22:12:31.555313Z",
"modified": "2024-04-15T22:12:31.563616Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6595,
"topic": "gcn.circular",
"uuid": "415a5c91-543f-4e0d-8bf6-eaa166a14dd9",
"title": "GRB 240415B: Swift/BAT-GUANO arcminute localization of a short burst",
"submitter": "Hop gcn.circular",
"authors": "Jimmy DeLaunay at Penn State <delauj2@gmail.com>",
"data": {
"date": "24/04/15 22:22:56 GMT",
"from": "Jimmy DeLaunay at Penn State <delauj2@gmail.com>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/36125"
},
"title": "GCN CIRCULAR",
"number": "36125",
"subject": "GRB 240415B: Swift/BAT-GUANO arcminute localization of a short burst"
},
"message_text": "James DeLaunay (PSU), Aaron Tohuvavohu (U Toronto), Samuele Ronchini (PSU), Gayathri Raman (PSU), Jamie A. Kennea (PSU), Tyler Parsotan (NASA GSFC) report:\n\nSwift/BAT did not localize GRB 240415B onboard (T0: 2024-04-15T03:10:49.351 UTC, GECAM trigger 328).\n\nThe GECAM notice, distributed in near real-time, triggered the Swift Mission Operations Center operated Gamma-ray Urgent Archiver for Novel Opportunities (GUANO; Tohuvavohu et al. 2020, ApJ, 900, 1). \n\nUpon trigger by this notice, GUANO sent a command to the Swift Burst Alert Telescope (BAT) to save 200 seconds of BAT event-mode data from [-50,+150] seconds around the time of the burst. All the requested event mode data was delivered to the ground.\n\nThe BAT likelihood search, NITRATES (DeLaunay + Tohuvavohu 2022, ApJ, 941, 169), detects the burst in a 0.256 s analysis time bin starting at T0 - 0.128 s with a sqrt(TS) of 16.2.\nAn arcminute localization is found with DeltaLLHOut of 26.8 and a DeltaLLHPeak of 9.4.\n\nSee Section 9.1 and Figures 10 and 17 in the NITRATES paper for brief descriptions and interpretations of sqrt(TS), DeltaLLHPeak, and DeltaLLHOut.\n\nThe BAT position is\nRA, Dec = 132.317, -27.07 deg which is\n RA(J2000) = 08h 49m 16.0s\n Dec(J2000) = -27d 04â² 12.0â³\nwith an estimated uncertainty of 5 arcmin radius.\n\nFollow-up observations from other instruments are requested.\nXRT and UVOT will not follow-up until March 18 due to planned observatory downtime.\n\nGUANO is a fully autonomous, extremely low latency, spacecraft\ncommanding pipeline designed for targeted recovery of BAT event mode\ndata around the times of compelling astrophysical events to enable\nmore sensitive GRB searches.\n\nA live reporting of Swift/BAT event data recovered by GUANO can be\nfound at: https://www.swift.psu.edu/guano/\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/36125.",
"published": "2024-04-15T22:23:12.556942Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-04-15T22:23:12.556953Z",
"modified": "2024-04-15T22:23:12.563512Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5995,
"topic": "gcn.circular",
"uuid": "4bf53b4b-4a6e-4d40-8b83-e769869a5e6f",
"title": "GRB 240205B: Swift-BAT refined analysis",
"submitter": "Hop gcn.circular",
"authors": "Sibasish Laha at GSFC <sibasish.laha@nasa.gov>",
"data": {
"date": "24/02/07 19:18:03 GMT",
"from": "Sibasish Laha at GSFC <sibasish.laha@nasa.gov>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35702"
},
"title": "GCN CIRCULAR",
"number": "35702",
"subject": "GRB 240205B: Swift-BAT refined analysis"
},
"message_text": "M. Stamatikos (OSU), S. D. Barthelmy (GSFC),\nH. A. Krimm (NSF), S. Laha (GSFC/UMBC),\nA. Y. Lien (U Tampa), C. B. Markwardt (GSFC),\nM. J. Moss (GSFC), D. M. Palmer (LANL),\nT. Parsotan (GSFC), T. Sakamoto (AGU),\n(i.e. the Swift-BAT team):\n\nUsing the data set from T-240 to T+962 sec from the recent telemetry downlink,\nwe report further analysis of BAT GRB 240205B (trigger #1213095)\n(Moss, et al., GCN Circ. 35683). The BAT ground-calculated position is\nRA, Dec = 351.466, -55.123 deg which is\n RA(J2000) = 23h 25m 51.9s\n Dec(J2000) = -55d 07' 24.5\"\nwith an uncertainty of 1.0 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 98%.\n\nThe BAT light curve shows a complex structure with a duration of ~ 60 sec.\nAbove 100 keV, the lightcurve is dominated by a single bright 1 s long peak around T+40.\nA similar feature has also been reported by GECAM-B telescope, Zhang et al., GCN circ. 35689.\nT90 (15-350 keV) is 47.29 +- 0.29 sec (estimated error including systematics).\n\nThe time-averaged spectrum from T-0.84 to T+78.94 sec is best fit by a simple\npower-law model. The power law index of the time-averaged spectrum is\n2.23 +- 0.03. The fluence in the 15-150 keV band is 2.6 +- 0.0 x 10^-05 erg/cm2.\nThe 1-sec peak photon flux measured from T+39.07 sec in the 15-150 keV band\nis 47.8 +- 1.0 ph/cm2/sec. All the quoted errors are at the 90% confidence\nlevel.\n\nThe results of the batgrbproduct analysis are available at\nhttp://gcn.gsfc.nasa.gov/notices_s/1213095/BA/\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35702.",
"published": "2024-02-07T19:18:16.582334Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-07T19:18:16.582347Z",
"modified": "2024-02-07T19:18:16.592332Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5996,
"topic": "gcn.circular",
"uuid": "3d949abd-a8de-45b0-82f2-75c4545e8730",
"title": "Fermi trigger No 729012023: Global MASTER-Net observations report",
"submitter": "Hop gcn.circular",
"authors": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"data": {
"date": "24/02/08 07:30:57 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35703"
},
"title": "GCN CIRCULAR",
"number": "35703",
"subject": "Fermi trigger No 729012023: Global MASTER-Net observations report"
},
"message_text": "V. Lipunov, V.Kornilov, E. Gorbovskoy, K. Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, V.Senik, D. Vlasenko,\nG.Antipov, D.Zimnukhov, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D. Cheryasov, Ya.Kechin, Yu.Tselik, A. Sosnovskij\n(Lomonosov Moscow State University, SAI, Physics Department),\n\nR. Podesta, C.Lopez, F. Podesta, C.Francile\n(Observatorio Astronomico Felix Aguilar OAFA),\n\nR. Rebolo, M. Serra\n(The Instituto de Astrofisica de Canarias),\n\nD. Buckley\n(South African Astronomical Observatory),\n\nO.A. Gress, N.M. Budnev, O.Ershova\n(Irkutsk State University, API),\n\nL.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez,\nA.R.Corella, L.H.Rodriguez\n(INAOE, Guillermo Haro Astrophysics Observatory),\n\nA. Tlatov, D. Dormidontov\n(Kislovodsk Solar Station of the Pulkovo Observatory),\n\nV. Yurkov, A. Gabovich\n(Blagoveschensk Educational State University)\n\nMASTER-Tunka robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the Fermi GRB240207.64 (trigger No 729012023,10h 48m 31.20s , +51d 33m 36.0s, R=9.16) errorbox 973 sec after notice time and 1011 sec after trigger time at 2024-02-07 15:37:09 UT, with upper limit up to 20.5 mag. The observations began at zenith distance = 28 deg. The sun altitude is -48.8 deg.\n\nMASTER-Tavrida robotic telescope located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB240207.64 errorbox 19834 sec after notice time and 19872 sec after trigger time at 2024-02-07 20:51:30 UT, with upper limit up to 19.5 mag. The observations began at zenith distance = 17 deg. The sun altitude is -58.2 deg.\n\nMASTER-SAAO robotic telescope located in South Africa (South African Astronomical Observatory) started inspect of the Fermi GRB240207.64 errorbox 23635 sec after notice time and 23673 sec after trigger time at 2024-02-07 21:54:51 UT, with upper limit up to 19.4 mag. The observations began at zenith distance = 79 deg. The sun altitude is -40.7 deg.\n\nThe galactic latitude b = 57 deg., longitude l = 158 deg.\n\n\nReal time updated cover map and OT discovered available here:\nhttps://master.sai.msu.ru/site/master2/observ.php?id#73518\n\nWe obtain a following upper limits.\n\nTmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n 1042 | 2024-02-07 15:37:09 | MASTER-Tunka | (10h 41m 30.64s , +50d 43m 45.4s) | C | 60 | 19.4 |\n 1116 | 2024-02-07 15:38:23 | MASTER-Tunka | (10h 54m 14.15s , +50d 42m 20.5s) | C | 60 | 19.6 |\n 1188 | 2024-02-07 15:39:36 | MASTER-Tunka | (10h 44m 01.98s , +52d 36m 00.4s) | C | 60 | 19.3 |\n 1259 | 2024-02-07 15:40:47 | MASTER-Tunka | (10h 57m 09.44s , +52d 36m 54.7s) | C | 60 | 19.5 |\n 1334 | 2024-02-07 15:42:02 | MASTER-Tunka | (10h 40m 04.34s , +48d 49m 57.3s) | C | 60 | 19.4 |\n 1641 | 2024-02-07 15:47:09 | MASTER-Tunka | (10h 52m 07.15s , +48d 48m 12.7s) | C | 60 | 19.5 |\n 2007 | 2024-02-07 15:53:14 | MASTER-Tunka | (10h 41m 31.47s , +50d 43m 52.9s) | C | 60 | 19.4 |\n 2079 | 2024-02-07 15:54:26 | MASTER-Tunka | (10h 54m 09.47s , +50d 44m 27.8s) | C | 60 | 19.6 |\n 2151 | 2024-02-07 15:55:38 | MASTER-Tunka | (10h 44m 00.92s , +52d 37m 52.0s) | C | 60 | 19.3 |\n 2222 | 2024-02-07 15:56:50 | MASTER-Tunka | (10h 57m 06.35s , +52d 36m 25.5s) | C | 60 | 19.5 |\n 2295 | 2024-02-07 15:58:02 | MASTER-Tunka | (10h 40m 04.42s , +48d 49m 23.5s) | C | 60 | 19.5 |\n 2369 | 2024-02-07 15:59:17 | MASTER-Tunka | (10h 47m 21.25s , +54d 31m 10.6s) | C | 60 | 19.5 |\n 2441 | 2024-02-07 16:00:29 | MASTER-Tunka | (11h 01m 12.17s , +54d 32m 19.0s) | C | 60 | 19.7 |\n 2520 | 2024-02-07 16:01:48 | MASTER-Tunka | (11h 05m 30.81s , +50d 44m 22.7s) | C | 60 | 19.6 |\n 2678 | 2024-02-07 16:04:26 | MASTER-Tunka | (11h 18m 09.23s , +50d 42m 03.5s) | C | 60 | 19.3 |\n 2751 | 2024-02-07 16:05:39 | MASTER-Tunka | (10h 52m 12.56s , +48d 49m 26.8s) | C | 60 | 19.5 |\n 3123 | 2024-02-07 16:11:51 | MASTER-Tunka | (10h 41m 30.68s , +50d 45m 51.9s) | C | 60 | 19.5 |\n 3195 | 2024-02-07 16:13:02 | MASTER-Tunka | (10h 54m 14.21s , +50d 44m 26.1s) | C | 60 | 19.5 |\n 3269 | 2024-02-07 16:14:16 | MASTER-Tunka | (10h 43m 55.31s , +52d 37m 50.8s) | C | 60 | 19.3 |\n 3360 | 2024-02-07 16:15:48 | MASTER-Tunka | (10h 57m 11.88s , +52d 37m 25.7s) | C | 60 | 19.6 |\n 3432 | 2024-02-07 16:17:00 | MASTER-Tunka | (10h 40m 00.26s , +48d 52m 02.7s) | C | 60 | 19.5 |\n 3505 | 2024-02-07 16:18:13 | MASTER-Tunka | (10h 47m 20.74s , +54d 32m 17.4s) | C | 60 | 19.4 |\n 3577 | 2024-02-07 16:19:24 | MASTER-Tunka | (11h 01m 11.15s , +54d 33m 06.6s) | C | 60 | 19.7 |\n 3649 | 2024-02-07 16:20:36 | MASTER-Tunka | (11h 05m 31.00s , +50d 44m 21.4s) | C | 60 | 19.5 |\n 3720 | 2024-02-07 16:21:48 | MASTER-Tunka | (11h 18m 09.12s , +50d 44m 53.9s) | C | 60 | 19.2 |\n 3794 | 2024-02-07 16:23:01 | MASTER-Tunka | (10h 52m 13.02s , +48d 51m 02.2s) | C | 60 | 19.5 |\n 3867 | 2024-02-07 16:24:15 | MASTER-Tunka | (10h 18m 56.65s , +52d 39m 14.3s) | C | 60 | 19.4 |\n 4001 | 2024-02-07 16:26:29 | MASTER-Tunka | (10h 32m 05.54s , +52d 40m 49.9s) | C | 60 | 19.2 |\n 4080 | 2024-02-07 16:27:48 | MASTER-Tunka | (11h 09m 04.00s , +52d 39m 09.0s) | C | 60 | 19.5 |\n 4151 | 2024-02-07 16:28:59 | MASTER-Tunka | (11h 22m 07.49s , +52d 38m 03.4s) | C | 60 | 19.2 |\n 4226 | 2024-02-07 16:30:14 | MASTER-Tunka | (10h 17m 33.87s , +50d 46m 34.9s) | C | 60 | 19.2 |\n 4298 | 2024-02-07 16:31:25 | MASTER-Tunka | (10h 30m 05.75s , +50d 45m 13.3s) | C | 60 | 19.2 |\n 4379 | 2024-02-07 16:32:46 | MASTER-Tunka | (10h 21m 06.81s , +54d 35m 21.2s) | C | 60 | 19.4 |\n 4450 | 2024-02-07 16:33:58 | MASTER-Tunka | (10h 34m 54.66s , +54d 33m 29.8s) | C | 60 | 19.3 |\n 4547 | 2024-02-07 16:35:35 | MASTER-Tunka | (10h 47m 21.63s , +54d 34m 34.3s) | C | 60 | 19.4 |\n 4629 | 2024-02-07 16:36:57 | MASTER-Tunka | (11h 01m 04.32s , +54d 33m 16.8s) | C | 60 | 19.6 |\n 4701 | 2024-02-07 16:38:09 | MASTER-Tunka | (11h 05m 30.97s , +50d 46m 12.9s) | C | 60 | 19.4 |\n 4773 | 2024-02-07 16:39:21 | MASTER-Tunka | (11h 18m 13.97s , +50d 44m 44.9s) | C | 60 | 19.2 |\n 4859 | 2024-02-07 16:40:47 | MASTER-Tunka | (10h 18m 48.99s , +52d 40m 00.8s) | C | 60 | 19.3 |\n 4931 | 2024-02-07 16:41:59 | MASTER-Tunka | (10h 32m 08.29s , +52d 39m 50.7s) | C | 60 | 19.2 |\n 5008 | 2024-02-07 16:43:16 | MASTER-Tunka | (11h 08m 59.85s , +52d 40m 02.9s) | C | 60 | 19.5 |\n 5081 | 2024-02-07 16:44:29 | MASTER-Tunka | (11h 22m 11.11s , +52d 37m 48.2s) | C | 60 | 19.0 |\n 5156 | 2024-02-07 16:45:44 | MASTER-Tunka | (10h 17m 33.06s , +50d 48m 00.1s) | C | 60 | 19.3 |\n 5256 | 2024-02-07 16:47:24 | MASTER-Tunka | (10h 30m 04.41s , +50d 46m 59.1s) | C | 60 | 19.4 |\n 5332 | 2024-02-07 16:48:40 | MASTER-Tunka | (10h 21m 01.93s , +54d 36m 17.1s) | C | 60 | 19.4 |\n 5404 | 2024-02-07 16:49:52 | MASTER-Tunka | (10h 34m 57.58s , +54d 34m 52.7s) | C | 60 | 19.4 |\n 5480 | 2024-02-07 16:51:08 | MASTER-Tunka | (10h 51m 48.53s , +56d 27m 37.4s) | C | 60 | 19.5 |\n 5626 | 2024-02-07 16:53:34 | MASTER-Tunka | (10h 39m 16.49s , +46d 59m 59.8s) | C | 60 | 19.5 |\n 5702 | 2024-02-07 16:54:50 | MASTER-Tunka | (10h 50m 54.46s , +46d 58m 38.5s) | C | 60 | 19.5 |\n 5775 | 2024-02-07 16:56:02 | MASTER-Tunka | (10h 18m 50.34s , +52d 42m 43.8s) | C | 60 | 19.4 |\n 5847 | 2024-02-07 16:57:14 | MASTER-Tunka | (10h 32m 07.25s , +52d 41m 21.0s) | C | 60 | 19.3 |\n 5920 | 2024-02-07 16:58:28 | MASTER-Tunka | (11h 08m 58.43s , +52d 39m 02.0s) | C | 60 | 19.6 |\n 5992 | 2024-02-07 16:59:40 | MASTER-Tunka | (11h 22m 15.07s , +52d 38m 51.4s) | C | 60 | 19.3 |\n 6067 | 2024-02-07 17:00:55 | MASTER-Tunka | (10h 17m 29.62s , +50d 49m 00.8s) | C | 60 | 19.4 |\n 6147 | 2024-02-07 17:02:15 | MASTER-Tunka | (10h 16m 54.67s , +48d 54m 47.7s) | C | 60 | 19.4 |\n 6222 | 2024-02-07 17:03:29 | MASTER-Tunka | (10h 28m 59.67s , +48d 53m 48.7s) | C | 60 | 19.4 |\n 6293 | 2024-02-07 17:04:41 | MASTER-Tunka | (10h 30m 04.61s , +50d 48m 48.3s) | C | 60 | 19.4 |\n 6467 | 2024-02-07 17:07:35 | MASTER-Tunka | (10h 34m 50.88s , +54d 34m 43.3s) | C | 60 | 19.4 |\n 6539 | 2024-02-07 17:08:47 | MASTER-Tunka | (10h 51m 49.59s , +56d 28m 36.6s) | C | 60 | 19.4 |\n 6612 | 2024-02-07 17:10:00 | MASTER-Tunka | (11h 06m 14.59s , +56d 29m 23.9s) | C | 60 | 19.5 |\n 6686 | 2024-02-07 17:11:14 | MASTER-Tunka | (10h 39m 12.59s , +46d 59m 09.5s) | C | 60 | 19.5 |\n 6758 | 2024-02-07 17:12:26 | MASTER-Tunka | (10h 50m 59.06s , +47d 00m 16.0s) | C | 60 | 19.5 |\n 6879 | 2024-02-07 17:14:26 | MASTER-Tunka | (11h 13m 29.07s , +54d 35m 37.1s) | C | 60 | 19.5 |\n 6951 | 2024-02-07 17:15:39 | MASTER-Tunka | (11h 27m 22.72s , +54d 34m 05.6s) | C | 60 | 19.1 |\n 7026 | 2024-02-07 17:16:54 | MASTER-Tunka | (10h 24m 16.79s , +56d 29m 42.6s) | C | 60 | 19.3 |\n 7102 | 2024-02-07 17:18:10 | MASTER-Tunka | (10h 38m 42.40s , +56d 30m 38.5s) | C | 60 | 19.4 |\n 7176 | 2024-02-07 17:19:23 | MASTER-Tunka | (10h 16m 50.08s , +48d 54m 08.2s) | C | 60 | 19.4 |\n 7247 | 2024-02-07 17:20:35 | MASTER-Tunka | (10h 29m 02.90s , +48d 55m 33.2s) | C | 60 | 19.3 |\n 7319 | 2024-02-07 17:21:47 | MASTER-Tunka | (10h 16m 50.82s , +47d 02m 03.9s) | C | 60 | 19.4 |\n 7392 | 2024-02-07 17:23:00 | MASTER-Tunka | (10h 28m 42.13s , +47d 00m 45.6s) | C | 60 | 19.3 |\n 7469 | 2024-02-07 17:24:17 | MASTER-Tunka | (10h 51m 42.02s , +56d 28m 54.2s) | C | 60 | 19.4 |\n 7542 | 2024-02-07 17:25:30 | MASTER-Tunka | (11h 06m 15.51s , +56d 28m 44.8s) | C | 60 | 19.5 |\n 7616 | 2024-02-07 17:26:43 | MASTER-Tunka | (10h 39m 11.26s , +47d 01m 13.1s) | C | 60 | 19.4 |\n 7687 | 2024-02-07 17:27:55 | MASTER-Tunka | (10h 50m 54.87s , +46d 59m 24.2s) | C | 60 | 19.5 |\n 7759 | 2024-02-07 17:29:07 | MASTER-Tunka | (11h 03m 00.60s , +48d 53m 49.4s) | C | 60 | 19.4 |\n 7832 | 2024-02-07 17:30:20 | MASTER-Tunka | (11h 15m 10.74s , +48d 54m 24.4s) | C | 60 | 19.2 |\n 7905 | 2024-02-07 17:31:32 | MASTER-Tunka | (11h 13m 32.96s , +54d 35m 27.4s) | C | 60 | 19.5 |\n 7977 | 2024-02-07 17:32:45 | MASTER-Tunka | (11h 27m 15.35s , +54d 33m 56.9s) | C | 60 | 19.5 |\n 8051 | 2024-02-07 17:33:59 | MASTER-Tunka | (10h 24m 13.92s , +56d 30m 27.5s) | C | 60 | 19.3 |\n 8123 | 2024-02-07 17:35:11 | MASTER-Tunka | (10h 38m 40.26s , +56d 31m 35.0s) | C | 60 | 19.4 |\n 8197 | 2024-02-07 17:36:25 | MASTER-Tunka | (10h 16m 48.09s , +48d 54m 45.2s) | C | 60 | 19.3 |\n 8269 | 2024-02-07 17:37:36 | MASTER-Tunka | (10h 29m 01.09s , +48d 56m 18.7s) | C | 60 | 19.4 |\n 8341 | 2024-02-07 17:38:49 | MASTER-Tunka | (10h 16m 50.32s , +47d 01m 49.7s) | C | 60 | 19.3 |\n 8414 | 2024-02-07 17:40:02 | MASTER-Tunka | (10h 28m 34.63s , +47d 02m 32.8s) | C | 60 | 19.3 |\n 8490 | 2024-02-07 17:41:18 | MASTER-Tunka | (11h 00m 37.16s , +45d 05m 32.8s) | C | 60 | 19.5 |\n 8562 | 2024-02-07 17:42:29 | MASTER-Tunka | (11h 12m 03.75s , +45d 05m 37.0s) | C | 60 | 19.4 |\n 8635 | 2024-02-07 17:43:43 | MASTER-Tunka | (11h 26m 09.22s , +48d 52m 46.7s) | C | 60 | 19.1 |\n 8713 | 2024-02-07 17:45:01 | MASTER-Tunka | (11h 38m 22.23s , +48d 53m 43.9s) | C | 60 | 19.2 |\n 8786 | 2024-02-07 17:46:14 | MASTER-Tunka | (11h 02m 58.68s , +48d 54m 39.8s) | C | 60 | 19.6 |\n 8858 | 2024-02-07 17:47:26 | MASTER-Tunka | (11h 15m 09.64s , +48d 55m 15.2s) | C | 60 | 19.3 |\n 8931 | 2024-02-07 17:48:39 | MASTER-Tunka | (11h 13m 32.17s , +54d 36m 17.5s) | C | 60 | 19.6 |\n 9003 | 2024-02-07 17:49:51 | MASTER-Tunka | (11h 27m 14.06s , +54d 34m 47.5s) | C | 60 | 19.5 |\n 9077 | 2024-02-07 17:51:05 | MASTER-Tunka | (10h 24m 10.57s , +56d 31m 03.2s) | C | 60 | 19.4 |\n 9150 | 2024-02-07 17:52:17 | MASTER-Tunka | (10h 38m 37.89s , +56d 32m 15.9s) | C | 60 | 19.5 |\n 9224 | 2024-02-07 17:53:31 | MASTER-Tunka | (11h 01m 28.75s , +47d 02m 02.5s) | C | 60 | 19.5 |\n 9296 | 2024-02-07 17:54:43 | MASTER-Tunka | (11h 13m 07.10s , +47d 00m 41.4s) | C | 60 | 19.5 |\n 9370 | 2024-02-07 17:55:57 | MASTER-Tunka | (10h 16m 48.84s , +47d 03m 34.0s) | C | 60 | 19.5 |\n 9441 | 2024-02-07 17:57:09 | MASTER-Tunka | (10h 28m 37.59s , +47d 02m 17.5s) | C | 60 | 19.5 |\n 9515 | 2024-02-07 17:58:22 | MASTER-Tunka | (11h 00m 36.65s , +45d 06m 20.9s) | C | 60 | 19.4 |\n 9587 | 2024-02-07 17:59:34 | MASTER-Tunka | (11h 12m 01.49s , +45d 06m 17.1s) | C | 60 | 19.3 |\n 9659 | 2024-02-07 18:00:47 | MASTER-Tunka | (11h 26m 08.10s , +48d 55m 20.9s) | C | 60 | 19.4 |\n 9737 | 2024-02-07 18:02:05 | MASTER-Tunka | (11h 38m 17.88s , +48d 53m 14.1s) | C | 60 | 19.3 |\n 9810 | 2024-02-07 18:03:18 | MASTER-Tunka | (11h 03m 04.74s , +48d 56m 21.3s) | C | 60 | 19.6 |\n 9882 | 2024-02-07 18:04:30 | MASTER-Tunka | (11h 15m 08.22s , +48d 55m 03.8s) | C | 60 | 19.5 |\n 10003 | 2024-02-07 18:06:31 | MASTER-Tunka | (10h 39m 10.24s , +45d 08m 26.4s) | C | 60 | 19.7 |\n 10075 | 2024-02-07 18:07:43 | MASTER-Tunka | (10h 50m 23.74s , +45d 07m 08.4s) | C | 60 | 19.8 |\n 10147 | 2024-02-07 18:08:55 | MASTER-Tunka | (11h 01m 27.74s , +47d 01m 07.0s) | C | 60 | 19.6 |\n 10219 | 2024-02-07 18:10:07 | MASTER-Tunka | (11h 13m 09.21s , +47d 01m 57.7s) | C | 60 | 19.4 |\n 10292 | 2024-02-07 18:11:19 | MASTER-Tunka | (11h 29m 33.13s , +50d 49m 20.6s) | C | 60 | 19.3 |\n 10363 | 2024-02-07 18:12:31 | MASTER-Tunka | (11h 42m 07.14s , +50d 48m 18.5s) | C | 60 | 19.3 |\n 10437 | 2024-02-07 18:13:45 | MASTER-Tunka | (11h 00m 36.22s , +45d 09m 04.8s) | C | 60 | 19.5 |\n 10509 | 2024-02-07 18:14:57 | MASTER-Tunka | (11h 12m 02.57s , +45d 07m 43.2s) | C | 60 | 19.2 |\n 10581 | 2024-02-07 18:16:09 | MASTER-Tunka | (11h 26m 03.68s , +48d 54m 11.1s) | C | 60 | 19.1 |\n 10653 | 2024-02-07 18:17:21 | MASTER-Tunka | (11h 38m 20.80s , +48d 53m 55.8s) | C | 60 | 19.0 |\n 10726 | 2024-02-07 18:18:34 | MASTER-Tunka | (11h 19m 10.12s , +56d 30m 33.5s) | C | 60 | 19.1 |\n 10798 | 2024-02-07 18:19:46 | MASTER-Tunka | (11h 33m 43.30s , +56d 31m 38.0s) | C | 60 | 19.1 |\n 10872 | 2024-02-07 18:20:59 | MASTER-Tunka | (10h 57m 14.58s , +58d 27m 16.0s) | C | 60 | 19.4 |\n 10944 | 2024-02-07 18:22:12 | MASTER-Tunka | (11h 12m 36.51s , +58d 25m 48.1s) | C | 60 | 19.3 |\n 11019 | 2024-02-07 18:23:27 | MASTER-Tunka | (10h 39m 01.42s , +45d 08m 09.4s) | C | 60 | 19.6 |\n 11091 | 2024-02-07 18:24:38 | MASTER-Tunka | (10h 50m 27.72s , +45d 07m 54.4s) | C | 60 | 19.6 |\n 11162 | 2024-02-07 18:25:50 | MASTER-Tunka | (11h 01m 23.46s , +47d 03m 30.1s) | C | 60 | 19.5 |\n 11307 | 2024-02-07 18:28:15 | MASTER-Tunka | (11h 29m 31.41s , +50d 50m 28.7s) | C | 60 | 19.2 |\n 11487 | 2024-02-07 18:31:15 | MASTER-Tunka | (10h 27m 04.66s , +58d 27m 17.5s) | C | 60 | 19.3 |\n 11560 | 2024-02-07 18:32:27 | MASTER-Tunka | (10h 42m 14.92s , +58d 25m 55.7s) | C | 60 | 19.3 |\n 11633 | 2024-02-07 18:33:40 | MASTER-Tunka | (11h 18m 03.89s , +56d 31m 02.5s) | C | 60 | 19.4 |\n 11705 | 2024-02-07 18:34:52 | MASTER-Tunka | (11h 32m 29.43s , +56d 31m 50.4s) | C | 60 | 19.2 |\n 11977 | 2024-02-07 18:39:25 | MASTER-Tunka | (11h 11m 22.83s , +58d 27m 02.0s) | C | 60 | 19.5 |\n 12056 | 2024-02-07 18:40:44 | MASTER-Tunka | (10h 38m 05.55s , +45d 09m 50.3s) | C | 60 | 19.7 |\n 12128 | 2024-02-07 18:41:56 | MASTER-Tunka | (10h 49m 26.16s , +45d 10m 33.4s) | C | 60 | 19.7 |\n 12204 | 2024-02-07 18:43:12 | MASTER-Tunka | (09h 53m 26.02s , +54d 39m 42.4s) | C | 60 | 19.5 |\n 12277 | 2024-02-07 18:44:24 | MASTER-Tunka | (10h 07m 21.19s , +54d 39m 38.9s) | C | 60 | 19.3 |\n 12356 | 2024-02-07 18:45:44 | MASTER-Tunka | (11h 28m 27.75s , +50d 51m 14.5s) | C | 60 | 19.5 |\n 12431 | 2024-02-07 18:46:58 | MASTER-Tunka | (11h 41m 07.08s , +50d 49m 09.8s) | C | 60 | 19.5 |\n 12506 | 2024-02-07 18:48:14 | MASTER-Tunka | (10h 27m 02.63s , +58d 28m 53.8s) | C | 60 | 19.4 |\n 12578 | 2024-02-07 18:49:26 | MASTER-Tunka | (10h 42m 14.02s , +58d 27m 56.3s) | C | 60 | 19.5 |\n 12665 | 2024-02-07 18:50:53 | MASTER-Tunka | (11h 17m 54.88s , +56d 33m 50.4s) | C | 60 | 19.5 |\n 12741 | 2024-02-07 18:52:09 | MASTER-Tunka | (11h 32m 32.64s , +56d 32m 18.6s) | C | 60 | 19.3 |\n 12815 | 2024-02-07 18:53:23 | MASTER-Tunka | (10h 55m 58.60s , +58d 26m 42.7s) | C | 60 | 19.5 |\n 12888 | 2024-02-07 18:54:35 | MASTER-Tunka | (11h 11m 20.99s , +58d 26m 18.3s) | C | 60 | 19.3 |\n 12963 | 2024-02-07 18:55:51 | MASTER-Tunka | (09h 52m 08.62s , +50d 52m 35.3s) | C | 60 | 19.4 |\n 13091 | 2024-02-07 18:57:59 | MASTER-Tunka | (10h 04m 52.34s , +50d 53m 53.5s) | C | 60 | 19.6 |\n 13164 | 2024-02-07 18:59:12 | MASTER-Tunka | (09h 53m 22.74s , +54d 41m 20.6s) | C | 60 | 19.3 |\n 13237 | 2024-02-07 19:00:24 | MASTER-Tunka | (10h 07m 11.99s , +54d 42m 12.2s) | C | 60 | 19.3 |\n 13319 | 2024-02-07 19:01:47 | MASTER-Tunka | (11h 22m 38.51s , +47d 02m 22.2s) | C | 60 | 19.2 |\n 13391 | 2024-02-07 19:02:59 | MASTER-Tunka | (11h 34m 29.21s , +47d 02m 06.5s) | C | 60 | 19.3 |\n 13466 | 2024-02-07 19:04:14 | MASTER-Tunka | (10h 26m 56.10s , +58d 29m 30.9s) | C | 60 | 20.2 |\n 13538 | 2024-02-07 19:05:26 | MASTER-Tunka | (10h 42m 13.86s , +58d 27m 59.1s) | C | 60 | 20.3 |\n 13681 | 2024-02-07 19:07:49 | MASTER-Tunka | (11h 32m 48.13s , +52d 45m 08.5s) | C | 60 | 20.5 |\n 13753 | 2024-02-07 19:09:01 | MASTER-Tunka | (11h 46m 00.59s , +52d 45m 38.8s) | C | 60 | 20.2 |\n 13827 | 2024-02-07 19:10:15 | MASTER-Tunka | (10h 59m 36.05s , +43d 15m 40.6s) | C | 60 | 20.4 |\n 13899 | 2024-02-07 19:11:27 | MASTER-Tunka | (11h 10m 40.32s , +43d 15m 36.6s) | C | 60 | 20.3 |\n 14023 | 2024-02-07 19:13:31 | MASTER-Tunka | (09h 52m 05.57s , +50d 54m 34.6s) | C | 60 | 20.4 |\n 14165 | 2024-02-07 19:15:53 | MASTER-Tunka | (10h 04m 45.60s , +50d 53m 03.7s) | C | 60 | 20.4 |\n 14241 | 2024-02-07 19:17:09 | MASTER-Tunka | (09h 53m 25.23s , +54d 42m 37.8s) | C | 60 | 20.3 |\n 14313 | 2024-02-07 19:18:21 | MASTER-Tunka | (10h 07m 08.69s , +54d 41m 49.4s) | C | 60 | 20.3 |\n 14425 | 2024-02-07 19:20:13 | MASTER-Tunka | (11h 22m 36.28s , +47d 05m 13.2s) | C | 60 | 20.3 |\n 14498 | 2024-02-07 19:21:26 | MASTER-Tunka | (11h 34m 26.75s , +47d 03m 49.7s) | C | 60 | 20.4 |\n 14626 | 2024-02-07 19:23:34 | MASTER-Tunka | (11h 21m 11.94s , +45d 09m 50.7s) | C | 60 | 20.2 |\n 14703 | 2024-02-07 19:24:51 | MASTER-Tunka | (11h 32m 49.54s , +52d 46m 53.1s) | C | 60 | 20.4 |\n 14838 | 2024-02-07 19:27:06 | MASTER-Tunka | (11h 32m 30.13s , +45d 09m 30.6s) | C | 60 | 20.3 |\n 14918 | 2024-02-07 19:28:26 | MASTER-Tunka | (11h 46m 04.37s , +52d 46m 16.0s) | C | 60 | 20.2 |\n 15023 | 2024-02-07 19:30:11 | MASTER-Tunka | (10h 59m 33.59s , +43d 17m 28.7s) | C | 60 | 20.3 |\n 15095 | 2024-02-07 19:31:23 | MASTER-Tunka | (11h 10m 33.74s , +43d 18m 12.5s) | C | 60 | 20.4 |\n 15198 | 2024-02-07 19:33:06 | MASTER-Tunka | (09h 52m 03.90s , +50d 54m 25.8s) | C | 60 | 20.4 |\n 15269 | 2024-02-07 19:34:17 | MASTER-Tunka | (10h 04m 37.93s , +50d 53m 23.2s) | C | 60 | 20.4 |\n 15344 | 2024-02-07 19:35:32 | MASTER-Tunka | (11h 22m 40.53s , +47d 04m 03.5s) | C | 60 | 20.2 |\n 15416 | 2024-02-07 19:36:43 | MASTER-Tunka | (11h 34m 22.49s , +47d 05m 07.8s) | C | 60 | 20.2 |\n 15489 | 2024-02-07 19:37:57 | MASTER-Tunka | (11h 38m 29.60s , +54d 41m 07.5s) | C | 60 | 20.3 |\n 15561 | 2024-02-07 19:39:08 | MASTER-Tunka | (11h 52m 11.93s , +54d 39m 45.4s) | C | 60 | 20.3 |\n 15634 | 2024-02-07 19:40:22 | MASTER-Tunka | (11h 21m 05.95s , +45d 12m 11.3s) | C | 60 | 20.3 |\n 15708 | 2024-02-07 19:41:36 | MASTER-Tunka | (11h 32m 50.64s , +52d 46m 40.2s) | C | 60 | 20.5 |\n 15781 | 2024-02-07 19:42:49 | MASTER-Tunka | (11h 32m 26.21s , +45d 09m 53.6s) | C | 60 | 20.3 |\n 15855 | 2024-02-07 19:44:02 | MASTER-Tunka | (11h 46m 02.19s , +52d 45m 40.1s) | C | 60 | 20.2 |\n 15940 | 2024-02-07 19:45:28 | MASTER-Tunka | (10h 59m 34.89s , +43d 18m 50.7s) | C | 60 | 20.3 |\n 16011 | 2024-02-07 19:46:39 | MASTER-Tunka | (11h 10m 33.96s , +43d 16m 59.3s) | C | 60 | 20.3 |\n 16087 | 2024-02-07 19:47:55 | MASTER-Tunka | (11h 24m 51.39s , +58d 29m 05.0s) | C | 60 | 20.4 |\n 16160 | 2024-02-07 19:49:08 | MASTER-Tunka | (11h 40m 09.91s , +58d 29m 36.5s) | C | 60 | 20.2 |\n 16234 | 2024-02-07 19:50:22 | MASTER-Tunka | (11h 02m 48.65s , +60d 22m 45.8s) | C | 60 | 20.4 |\n 16306 | 2024-02-07 19:51:34 | MASTER-Tunka | (11h 19m 05.03s , +60d 22m 25.5s) | C | 60 | 20.4 |\n 16380 | 2024-02-07 19:52:47 | MASTER-Tunka | (10h 32m 04.80s , +60d 23m 25.9s) | C | 60 | 20.3 |\n 16452 | 2024-02-07 19:54:00 | MASTER-Tunka | (10h 48m 19.17s , +60d 24m 46.6s) | C | 60 | 20.4 |\n 16527 | 2024-02-07 19:55:14 | MASTER-Tunka | (11h 38m 20.20s , +54d 40m 57.7s) | C | 60 | 20.5 |\n 16606 | 2024-02-07 19:56:33 | MASTER-Tunka | (11h 52m 10.04s , +54d 41m 30.0s) | C | 60 | 20.4 |\n 16780 | 2024-02-07 19:59:28 | MASTER-Tunka | (11h 21m 08.35s , +45d 11m 53.1s) | C | 60 | 20.4 |\n 16874 | 2024-02-07 20:01:01 | MASTER-Tunka | (11h 32m 22.75s , +45d 10m 35.7s) | C | 60 | 20.5 |\n 16952 | 2024-02-07 20:02:19 | MASTER-Tunka | (09h 52m 11.06s , +52d 49m 36.1s) | C | 60 | 20.4 |\n 17033 | 2024-02-07 20:03:40 | MASTER-Tunka | (10h 05m 24.82s , +52d 48m 25.1s) | C | 60 | 20.3 |\n 17108 | 2024-02-07 20:04:56 | MASTER-Tunka | (11h 24m 53.89s , +58d 30m 23.6s) | C | 60 | 20.4 |\n 17184 | 2024-02-07 20:06:12 | MASTER-Tunka | (11h 40m 05.60s , +58d 29m 15.5s) | C | 60 | 20.2 |\n 17257 | 2024-02-07 20:07:25 | MASTER-Tunka | (11h 02m 44.09s , +60d 25m 19.0s) | C | 60 | 20.4 |\n 17329 | 2024-02-07 20:08:37 | MASTER-Tunka | (11h 19m 00.70s , +60d 23m 57.9s) | C | 60 | 20.4 |\n 17479 | 2024-02-07 20:11:07 | MASTER-Tunka | (10h 48m 13.49s , +60d 23m 52.2s) | C | 60 | 20.4 |\n 17557 | 2024-02-07 20:12:25 | MASTER-Tunka | (11h 38m 19.76s , +54d 42m 24.0s) | C | 60 | 20.5 |\n 17629 | 2024-02-07 20:13:37 | MASTER-Tunka | (11h 52m 09.78s , +54d 40m 21.9s) | C | 60 | 20.4 |\n 17706 | 2024-02-07 20:14:54 | MASTER-Tunka | (10h 17m 41.43s , +43d 19m 21.7s) | C | 60 | 20.5 |\n 17781 | 2024-02-07 20:16:09 | MASTER-Tunka | (10h 28m 41.19s , +43d 20m 20.3s) | C | 60 | 20.5 |\n 17855 | 2024-02-07 20:17:23 | MASTER-Tunka | (09h 52m 10.25s , +52d 49m 10.7s) | C | 60 | 20.3 |\n 17928 | 2024-02-07 20:18:36 | MASTER-Tunka | (09h 54m 54.27s , +56d 36m 30.6s) | C | 60 | 20.3 |\n 18001 | 2024-02-07 20:19:48 | MASTER-Tunka | (10h 09m 23.85s , +56d 38m 10.1s) | C | 60 | 20.3 |\n 18073 | 2024-02-07 20:21:00 | MASTER-Tunka | (10h 05m 20.32s , +52d 48m 41.1s) | C | 60 | 20.4 |\n 18150 | 2024-02-07 20:22:17 | MASTER-Tunka | (11h 24m 48.81s , +58d 31m 09.2s) | C | 60 | 20.4 |\n 18222 | 2024-02-07 20:23:29 | MASTER-Tunka | (11h 40m 00.41s , +58d 29m 53.3s) | C | 60 | 20.2 |\n 18295 | 2024-02-07 20:24:43 | MASTER-Tunka | (11h 02m 37.59s , +60d 25m 49.0s) | C | 60 | 20.4 |\n 18368 | 2024-02-07 20:25:55 | MASTER-Tunka | (11h 18m 56.27s , +60d 24m 30.9s) | C | 60 | 20.4 |\n 18442 | 2024-02-07 20:27:10 | MASTER-Tunka | (10h 31m 50.38s , +60d 24m 13.5s) | C | 60 | 20.3 |\n 18517 | 2024-02-07 20:28:24 | MASTER-Tunka | (10h 48m 09.33s , +60d 24m 10.7s) | C | 60 | 20.4 |\n 18592 | 2024-02-07 20:29:40 | MASTER-Tunka | (09h 57m 27.62s , +58d 30m 30.2s) | C | 60 | 20.2 |\n 18665 | 2024-02-07 20:30:53 | MASTER-Tunka | (10h 12m 48.88s , +58d 32m 12.2s) | C | 60 | 20.2 |\n 18740 | 2024-02-07 20:32:08 | MASTER-Tunka | (10h 17m 37.55s , +43d 19m 39.1s) | C | 60 | 20.4 |\n 18814 | 2024-02-07 20:33:22 | MASTER-Tunka | (10h 28m 37.38s , +43d 20m 40.3s) | C | 60 | 20.5 |\n 18889 | 2024-02-07 20:34:37 | MASTER-Tunka | (09h 52m 04.84s , +52d 49m 21.7s) | C | 60 | 20.4 |\n 18961 | 2024-02-07 20:35:49 | MASTER-Tunka | (09h 54m 44.27s , +56d 36m 20.3s) | C | 60 | 20.3 |\n 19033 | 2024-02-07 20:37:01 | MASTER-Tunka | (10h 09m 22.64s , +56d 36m 56.3s) | C | 60 | 20.2 |\n 19112 | 2024-02-07 20:38:20 | MASTER-Tunka | (10h 05m 15.89s , +52d 50m 08.1s) | C | 60 | 20.4 |\n 19193 | 2024-02-07 20:39:41 | MASTER-Tunka | (11h 45m 17.93s , +56d 36m 54.1s) | C | 60 | 20.2 |\n 19338 | 2024-02-07 20:42:06 | MASTER-Tunka | (11h 52m 18.50s , +50d 54m 16.8s) | C | 60 | 20.4 |\n 19485 | 2024-02-07 20:44:33 | MASTER-Tunka | (11h 47m 58.98s , +49d 01m 29.1s) | C | 60 | 20.4 |\n 19635 | 2024-02-07 20:47:03 | MASTER-Tunka | (09h 57m 25.27s , +58d 32m 19.3s) | C | 60 | 20.1 |\n 19708 | 2024-02-07 20:48:16 | MASTER-Tunka | (10h 12m 38.41s , +58d 31m 34.5s) | C | 60 | 20.1 |\n 19790 | 2024-02-07 20:49:38 | MASTER-Tunka | (10h 17m 33.48s , +43d 20m 53.8s) | C | 60 | 20.4 |\n 19862 | 2024-02-07 20:50:49 | MASTER-Tunka | (10h 28m 39.88s , +43d 19m 57.1s) | C | 60 | 20.4 |\n 19902 | 2024-02-07 20:51:30 | MASTER-Tavrida | (09h 38m 33.44s , +54d 17m 56.3s) | C | 60 | 18.9 |\n 19938 | 2024-02-07 20:52:06 | MASTER-Tunka | (09h 54m 39.16s , +56d 36m 28.8s) | C | 60 | 20.1 |\n 20053 | 2024-02-07 20:54:00 | MASTER-Tunka | (10h 09m 16.74s , +56d 36m 51.4s) | C | 60 | 20.1 |\n 20129 | 2024-02-07 20:55:17 | MASTER-Tunka | (11h 45m 10.15s , +56d 37m 42.7s) | C | 60 | 20.1 |\n 20277 | 2024-02-07 20:57:45 | MASTER-Tunka | (11h 52m 17.29s , +50d 55m 44.9s) | C | 60 | 20.3 |\n 20423 | 2024-02-07 21:00:10 | MASTER-Tunka | (11h 47m 52.81s , +49d 02m 03.2s) | C | 60 | 20.3 |\n 20581 | 2024-02-07 21:02:49 | MASTER-Tunka | (09h 57m 13.65s , +58d 30m 31.0s) | C | 60 | 20.1 |\n 20653 | 2024-02-07 21:04:01 | MASTER-Tunka | (10h 12m 38.31s , +58d 30m 45.1s) | C | 60 | 20.1 |\n 20733 | 2024-02-07 21:05:21 | MASTER-Tunka | (11h 57m 38.98s , +52d 48m 16.4s) | C | 60 | 20.2 |\n 20924 | 2024-02-07 21:08:32 | MASTER-Tavrida | (09h 43m 44.00s , +50d 31m 52.0s) | C | 60 | 18.6 |\n 21027 | 2024-02-07 21:10:14 | MASTER-Tunka | (11h 45m 02.11s , +56d 36m 16.0s) | C | 60 | 20.2 |\n 21105 | 2024-02-07 21:11:32 | MASTER-Tunka | (11h 00m 05.08s , +41d 26m 57.2s) | C | 60 | 20.3 |\n 21176 | 2024-02-07 21:12:44 | MASTER-Tunka | (11h 10m 44.90s , +41d 25m 11.4s) | C | 60 | 20.3 |\n 21328 | 2024-02-07 21:15:16 | MASTER-Tunka | (11h 52m 06.39s , +50d 55m 19.9s) | C | 60 | 20.3 |\n 21429 | 2024-02-07 21:16:57 | MASTER-Tavrida | (09h 38m 29.36s , +54d 17m 55.9s) | C | 60 | 18.9 |\n 21475 | 2024-02-07 21:17:43 | MASTER-Tunka | (11h 47m 56.07s , +49d 01m 32.4s) | C | 60 | 20.3 |\n 21501 | 2024-02-07 21:18:09 | MASTER-Tavrida | (09h 52m 19.60s , +54d 20m 04.4s) | C | 60 | 19.0 |\n 21645 | 2024-02-07 21:20:33 | MASTER-Tunka | (11h 57m 38.32s , +52d 48m 47.4s) | C | 60 | 20.1 |\n 21835 | 2024-02-07 21:23:42 | MASTER-Tunka | (11h 44m 39.15s , +47d 06m 54.5s) | C | 60 | 20.3 |\n 22001 | 2024-02-07 21:26:29 | MASTER-Tunka | (10h 38m 20.02s , +43d 21m 21.0s) | C | 60 | 20.4 |\n 22073 | 2024-02-07 21:27:41 | MASTER-Tunka | (10h 49m 25.81s , +43d 20m 24.4s) | C | 60 | 20.4 |\n 22152 | 2024-02-07 21:28:59 | MASTER-Tunka | (10h 59m 59.68s , +41d 25m 28.3s) | C | 60 | 20.3 |\n 22224 | 2024-02-07 21:30:12 | MASTER-Tunka | (11h 10m 43.87s , +41d 25m 56.2s) | C | 60 | 20.2 |\n 22298 | 2024-02-07 21:31:26 | MASTER-Tunka | (10h 16m 04.06s , +45d 13m 20.5s) | C | 60 | 20.3 |\n 22370 | 2024-02-07 21:32:38 | MASTER-Tavrida | (09h 47m 20.84s , +52d 24m 01.8s) | C | 60 | 19.0 |\n 22371 | 2024-02-07 21:32:38 | MASTER-Tunka | (10h 27m 28.43s , +45d 15m 05.5s) | C | 60 | 20.3 |\n 22528 | 2024-02-07 21:35:16 | MASTER-Tunka | (10h 30m 11.79s , +41d 26m 22.4s) | C | 60 | 20.4 |\n 22605 | 2024-02-07 21:36:32 | MASTER-Tunka | (11h 57m 29.32s , +52d 48m 43.1s) | C | 60 | 20.1 |\n 22749 | 2024-02-07 21:38:57 | MASTER-Tunka | (11h 44m 36.06s , +47d 08m 43.7s) | C | 60 | 20.2 |\n 22805 | 2024-02-07 21:39:52 | MASTER-Tavrida | (09h 43m 35.94s , +50d 31m 56.8s) | C | 60 | 19.1 |\n 22901 | 2024-02-07 21:41:29 | MASTER-Tunka | (10h 38m 23.54s , +43d 21m 08.3s) | C | 60 | 20.4 |\n 22974 | 2024-02-07 21:42:42 | MASTER-Tunka | (10h 39m 40.60s , +41d 27m 30.4s) | C | 60 | 20.3 |\n 23046 | 2024-02-07 21:43:54 | MASTER-Tunka | (10h 49m 23.67s , +43d 20m 33.4s) | C | 60 | 20.4 |\n 23119 | 2024-02-07 21:45:06 | MASTER-Tunka | (10h 50m 20.64s , +41d 25m 36.6s) | C | 60 | 20.4 |\n 23191 | 2024-02-07 21:46:18 | MASTER-Tunka | (11h 00m 00.81s , +41d 26m 01.9s) | C | 60 | 18.6 |\n 23310 | 2024-02-07 21:48:18 | MASTER-Tavrida | (09h 38m 22.57s , +54d 18m 41.2s) | C | 60 | 18.8 |\n 23383 | 2024-02-07 21:49:30 | MASTER-Tavrida | (09h 52m 11.37s , +54d 20m 02.8s) | C | 60 | 18.9 |\n 23703 | 2024-02-07 21:54:51 | MASTER-SAAO | (10h 17m 51.64s , +43d 03m 23.6s) | C | 60 | 18.6 |\n 23703 | 2024-02-07 21:54:51 | MASTER-SAAO | (10h 27m 20.25s , +42d 51m 06.4s) | C | 60 | 18.5 |\n 23994 | 2024-02-07 21:59:42 | MASTER-SAAO | (10h 04m 58.86s , +44d 47m 07.2s) | C | 60 | 18.7 |\n 24259 | 2024-02-07 22:04:06 | MASTER-Tavrida | (09h 47m 22.08s , +52d 25m 32.3s) | C | 60 | 18.9 |\n 24552 | 2024-02-07 22:09:00 | MASTER-Tavrida | (09h 43m 34.72s , +50d 31m 45.3s) | C | 60 | 19.2 |\n 24615 | 2024-02-07 22:10:02 | MASTER-SAAO | (10h 17m 41.19s , +43d 04m 54.2s) | C | 60 | 19.1 |\n 24615 | 2024-02-07 22:10:02 | MASTER-SAAO | (10h 27m 22.59s , +42d 52m 37.9s) | C | 60 | 19.0 |\n 24843 | 2024-02-07 22:13:51 | MASTER-Tavrida | (09h 52m 12.38s , +54d 19m 41.6s) | C | 60 | 19.1 |\n 24955 | 2024-02-07 22:15:42 | MASTER-SAAO | (10h 05m 01.21s , +44d 46m 05.9s) | C | 60 | 19.1 |\n 25034 | 2024-02-07 22:17:02 | MASTER-SAAO | (11h 01m 20.71s , +41d 11m 18.3s) | C | 60 | 18.7 |\n 25279 | 2024-02-07 22:21:07 | MASTER-Tavrida | (09h 47m 16.84s , +52d 23m 43.4s) | C | 60 | 19.2 |\n 25528 | 2024-02-07 22:25:16 | MASTER-SAAO | (10h 16m 21.08s , +43d 04m 12.2s) | C | 60 | 19.1 |\n 25528 | 2024-02-07 22:25:16 | MASTER-SAAO | (10h 27m 26.45s , +42d 52m 17.0s) | C | 60 | 19.1 |\n 25660 | 2024-02-07 22:27:27 | MASTER-Tunka | (10h 15m 54.28s , +45d 12m 43.1s) | C | 60 | 19.6 |\n 25721 | 2024-02-07 22:28:29 | MASTER-Tavrida | (09h 43m 48.59s , +56d 11m 30.0s) | C | 60 | 19.3 |\n 25732 | 2024-02-07 22:28:39 | MASTER-Tunka | (10h 27m 12.45s , +45d 14m 14.9s) | C | 60 | 19.6 |\n 25866 | 2024-02-07 22:30:54 | MASTER-SAAO | (10h 05m 13.52s , +44d 48m 24.9s) | C | 60 | 18.5 |\n 25942 | 2024-02-07 22:32:10 | MASTER-Tavrida | (09h 51m 52.21s , +48d 36m 02.5s) | C | 60 | 19.5 |\n 25946 | 2024-02-07 22:32:13 | MASTER-SAAO | (11h 00m 04.39s , +41d 11m 11.8s) | C | 60 | 18.8 |\n 25948 | 2024-02-07 22:32:15 | MASTER-Tunka | (10h 38m 07.65s , +43d 20m 01.0s) | C | 60 | 19.6 |\n 26020 | 2024-02-07 22:33:28 | MASTER-Tunka | (10h 39m 29.07s , +41d 27m 04.3s) | C | 60 | 19.6 |\n 26025 | 2024-02-07 22:33:33 | MASTER-SAAO | (10h 06m 47.70s , +42d 54m 37.0s) | C | 60 | 18.7 |\n 26095 | 2024-02-07 22:34:43 | MASTER-Tunka | (10h 49m 12.08s , +43d 20m 14.7s) | C | 60 | 19.8 |\n 26170 | 2024-02-07 22:35:58 | MASTER-Tunka | (10h 50m 08.36s , +41d 25m 17.1s) | C | 60 | 19.7 |\n 26241 | 2024-02-07 22:37:09 | MASTER-Tavrida | (09h 55m 02.48s , +50d 30m 17.8s) | C | 60 | 19.3 |\n 26247 | 2024-02-07 22:37:15 | MASTER-Tunka | (11h 32m 42.88s , +60d 26m 57.8s) | C | 60 | 18.3 |\n 26313 | 2024-02-07 22:38:21 | MASTER-Tavrida | (09h 59m 11.80s , +52d 23m 55.2s) | C | 60 | 19.1 |\n 26344 | 2024-02-07 22:38:52 | MASTER-SAAO | (11h 00m 41.79s , +43d 04m 42.1s) | C | 60 | 18.7 |\n 26344 | 2024-02-07 22:38:52 | MASTER-SAAO | (11h 09m 01.49s , +42d 52m 17.4s) | C | 60 | 18.6 |\n 26424 | 2024-02-07 22:40:12 | MASTER-SAAO | (10h 17m 57.21s , +45d 00m 56.8s) | C | 60 | 19.1 |\n 26424 | 2024-02-07 22:40:12 | MASTER-SAAO | (10h 26m 33.03s , +44d 48m 33.1s) | C | 60 | 19.1 |\n 26503 | 2024-02-07 22:41:31 | MASTER-SAAO | (10h 39m 54.44s , +43d 05m 50.2s) | C | 60 | 19.0 |\n 26504 | 2024-02-07 22:41:31 | MASTER-SAAO | (10h 48m 14.22s , +42d 53m 26.5s) | C | 60 | 19.3 |\n 26690 | 2024-02-07 22:44:38 | MASTER-SAAO | (10h 29m 07.34s , +40d 58m 36.2s) | C | 60 | 19.0 |\n 26872 | 2024-02-07 22:47:40 | MASTER-SAAO | (10h 59m 23.08s , +41d 12m 25.5s) | C | 60 | 19.0 |\n 26872 | 2024-02-07 22:47:40 | MASTER-SAAO | (11h 09m 26.42s , +41d 00m 08.5s) | C | 60 | 18.7 |\n 26952 | 2024-02-07 22:49:00 | MASTER-SAAO | (10h 07m 06.73s , +42d 53m 07.7s) | C | 60 | 18.9 |\n 27271 | 2024-02-07 22:54:18 | MASTER-SAAO | (10h 58m 46.10s , +43d 05m 42.9s) | C | 60 | 18.7 |\n 27271 | 2024-02-07 22:54:18 | MASTER-SAAO | (11h 09m 07.02s , +42d 53m 27.2s) | C | 60 | 18.6 |\n 27350 | 2024-02-07 22:55:38 | MASTER-SAAO | (10h 16m 02.61s , +44d 59m 11.3s) | C | 60 | 18.6 |\n 27350 | 2024-02-07 22:55:38 | MASTER-SAAO | (10h 26m 43.03s , +44d 46m 57.9s) | C | 60 | 18.7 |\n 27430 | 2024-02-07 22:56:58 | MASTER-SAAO | (10h 38m 01.52s , +43d 05m 26.5s) | C | 60 | 19.0 |\n 27430 | 2024-02-07 22:56:58 | MASTER-SAAO | (10h 48m 22.16s , +42d 53m 11.3s) | C | 60 | 19.2 |\n 27540 | 2024-02-07 22:58:48 | MASTER-Tavrida | (09h 43m 49.92s , +56d 12m 07.7s) | C | 60 | 18.8 |\n 27601 | 2024-02-07 22:59:48 | MASTER-SAAO | (10h 29m 20.58s , +40d 59m 16.6s) | C | 60 | 18.7 |\n 27612 | 2024-02-07 23:00:00 | MASTER-Tavrida | (09h 58m 11.01s , +56d 11m 33.9s) | C | 60 | 18.6 |\n 27777 | 2024-02-07 23:02:45 | MASTER-SAAO | (09h 52m 33.02s , +46d 54m 07.9s) | C | 60 | 18.4 |\n 27777 | 2024-02-07 23:02:45 | MASTER-SAAO | (10h 04m 42.54s , +46d 42m 03.5s) | C | 60 | 18.6 |\n 27857 | 2024-02-07 23:04:04 | MASTER-SAAO | (10h 38m 13.68s , +41d 13m 00.8s) | C | 60 | 19.3 |\n 27857 | 2024-02-07 23:04:04 | MASTER-SAAO | (10h 49m 18.64s , +41d 00m 56.2s) | C | 60 | 19.4 |\n 27936 | 2024-02-07 23:05:24 | MASTER-SAAO | (11h 19m 42.10s , +43d 05m 31.9s) | C | 60 | 18.6 |\n 27936 | 2024-02-07 23:05:24 | MASTER-SAAO | (11h 29m 56.35s , +42d 53m 14.5s) | C | 60 | 18.6 |\n 28175 | 2024-02-07 23:09:23 | MASTER-SAAO | (10h 58m 54.61s , +43d 06m 46.5s) | C | 60 | 18.9 |\n 28175 | 2024-02-07 23:09:23 | MASTER-SAAO | (11h 09m 09.07s , +42d 54m 30.9s) | C | 60 | 19.0 |\n 28205 | 2024-02-07 23:09:53 | MASTER-Tavrida | (09h 58m 42.41s , +49d 15m 58.3s) | C | 60 | 18.7 |\n 28255 | 2024-02-07 23:10:43 | MASTER-SAAO | (10h 16m 33.39s , +44d 59m 39.3s) | C | 60 | 18.7 |\n 28255 | 2024-02-07 23:10:43 | MASTER-SAAO | (10h 27m 03.30s , +44d 47m 22.8s) | C | 60 | 18.8 |\n 28277 | 2024-02-07 23:11:05 | MASTER-Tavrida | (10h 10m 56.27s , +49d 15m 18.7s) | C | 60 | 18.8 |\n 28335 | 2024-02-07 23:12:03 | MASTER-SAAO | (10h 38m 19.65s , +43d 06m 58.2s) | C | 60 | 18.6 |\n 28335 | 2024-02-07 23:12:03 | MASTER-SAAO | (10h 48m 30.63s , +42d 54m 41.1s) | C | 60 | 18.9 |\n 28430 | 2024-02-07 23:13:37 | MASTER-Tunka | (10h 15m 45.01s , +45d 12m 48.0s) | C | 60 | 19.6 |\n 28501 | 2024-02-07 23:14:49 | MASTER-Tunka | (10h 26m 59.69s , +45d 12m 13.2s) | C | 60 | 19.5 |\n 28505 | 2024-02-07 23:14:53 | MASTER-SAAO | (10h 29m 31.03s , +41d 01m 24.6s) | C | 60 | 18.7 |\n 28645 | 2024-02-07 23:17:13 | MASTER-Tunka | (10h 29m 48.70s , +41d 25m 58.9s) | C | 60 | 19.0 |\n 28717 | 2024-02-07 23:18:25 | MASTER-Tunka | (10h 39m 24.28s , +41d 25m 04.7s) | C | 60 | 19.2 |\n 28751 | 2024-02-07 23:18:59 | MASTER-SAAO | (09h 52m 51.39s , +46d 53m 51.3s) | C | 60 | 18.6 |\n 28751 | 2024-02-07 23:18:59 | MASTER-SAAO | (10h 05m 00.05s , +46d 41m 44.9s) | C | 60 | 18.7 |\n 28789 | 2024-02-07 23:19:37 | MASTER-Tunka | (10h 50m 07.29s , +41d 26m 39.6s) | C | 60 | 19.3 |\n 28792 | 2024-02-07 23:19:40 | MASTER-Tavrida | (10h 02m 07.26s , +51d 09m 59.6s) | C | 60 | 18.8 |\n 28831 | 2024-02-07 23:20:19 | MASTER-SAAO | (10h 38m 28.43s , +41d 13m 18.8s) | C | 60 | 18.9 |\n 28831 | 2024-02-07 23:20:19 | MASTER-SAAO | (10h 49m 33.14s , +41d 01m 12.3s) | C | 60 | 18.9 |\n 28864 | 2024-02-07 23:20:52 | MASTER-Tavrida | (10h 14m 51.39s , +51d 09m 21.2s) | C | 60 | 18.8 |\n 28868 | 2024-02-07 23:20:56 | MASTER-Tunka | (11h 32m 24.66s , +60d 26m 36.6s) | C | 60 | 19.1 |\n 28910 | 2024-02-07 23:21:38 | MASTER-SAAO | (11h 18m 40.31s , +43d 05m 10.0s) | C | 60 | 18.7 |\n 28910 | 2024-02-07 23:21:38 | MASTER-SAAO | (11h 29m 57.31s , +42d 53m 01.7s) | C | 60 | 18.6 |\n 28936 | 2024-02-07 23:22:04 | MASTER-Tavrida | (10h 06m 39.70s , +53d 02m 04.9s) | C | 60 | 18.8 |\n 29009 | 2024-02-07 23:23:17 | MASTER-Tavrida | (10h 19m 56.05s , +53d 02m 46.9s) | C | 60 | 18.5 |\n 29141 | 2024-02-07 23:25:29 | MASTER-Tunka | (10h 00m 03.12s , +60d 24m 18.1s) | C | 60 | 18.3 | Coadd\n 29150 | 2024-02-07 23:25:38 | MASTER-SAAO | (10h 36m 50.34s , +46d 55m 24.7s) | C | 60 | 18.3 |\n 29150 | 2024-02-07 23:25:38 | MASTER-SAAO | (10h 48m 52.14s , +46d 43m 17.9s) | C | 60 | 18.6 |\n 29217 | 2024-02-07 23:26:44 | MASTER-Tunka | (10h 16m 14.47s , +60d 23m 27.0s) | C | 60 | 18.2 | Coadd\n 29230 | 2024-02-07 23:26:57 | MASTER-SAAO | (10h 36m 54.38s , +45d 00m 34.0s) | C | 60 | 18.6 |\n 29230 | 2024-02-07 23:26:57 | MASTER-SAAO | (10h 48m 32.05s , +44d 48m 26.0s) | C | 60 | 18.9 |\n 29310 | 2024-02-07 23:28:17 | MASTER-SAAO | (10h 57m 54.26s , +44d 59m 20.3s) | C | 60 | 18.4 |\n 29310 | 2024-02-07 23:28:17 | MASTER-SAAO | (11h 09m 32.01s , +44d 47m 12.0s) | C | 60 | 18.2 |\n 29482 | 2024-02-07 23:31:10 | MASTER-SAAO | (11h 19m 17.80s , +45d 00m 34.1s) | C | 60 | 18.7 |\n 29482 | 2024-02-07 23:31:10 | MASTER-SAAO | (11h 31m 01.59s , +44d 48m 28.1s) | C | 60 | 18.5 |\n 29666 | 2024-02-07 23:34:14 | MASTER-Tavrida | (09h 52m 01.55s , +56d 51m 20.5s) | C | 60 | 18.4 |\n 29730 | 2024-02-07 23:35:18 | MASTER-SAAO | (09h 52m 55.56s , +46d 55m 04.3s) | C | 60 | 18.6 |\n 29730 | 2024-02-07 23:35:18 | MASTER-SAAO | (10h 05m 04.28s , +46d 42m 53.0s) | C | 60 | 18.7 |\n 29739 | 2024-02-07 23:35:26 | MASTER-Tavrida | (10h 06m 30.39s , +56d 49m 54.3s) | C | 60 | 18.5 |\n 29810 | 2024-02-07 23:36:38 | MASTER-SAAO | (10h 38m 39.81s , +41d 13m 50.5s) | C | 60 | 18.9 |\n 29810 | 2024-02-07 23:36:38 | MASTER-SAAO | (10h 49m 44.15s , +41d 01m 38.5s) | C | 60 | 19.0 |\n 29890 | 2024-02-07 23:37:57 | MASTER-SAAO | (11h 18m 38.92s , +43d 06m 19.0s) | C | 60 | 18.7 |\n 29890 | 2024-02-07 23:37:57 | MASTER-SAAO | (11h 30m 03.08s , +42d 54m 06.5s) | C | 60 | 18.6 |\n 30104 | 2024-02-07 23:41:32 | MASTER-Tavrida | (09h 58m 38.76s , +49d 13m 33.5s) | C | 60 | 18.5 |\n 30128 | 2024-02-07 23:41:56 | MASTER-SAAO | (10h 37m 02.25s , +46d 55m 25.6s) | C | 60 | 18.5 |\n 30128 | 2024-02-07 23:41:56 | MASTER-SAAO | (10h 49m 11.16s , +46d 43m 13.2s) | C | 60 | 18.6 |\n 30177 | 2024-02-07 23:42:44 | MASTER-Tavrida | (10h 10m 55.04s , +49d 13m 59.0s) | C | 60 | 18.7 |\n 30208 | 2024-02-07 23:43:16 | MASTER-SAAO | (10h 36m 58.60s , +45d 00m 21.7s) | C | 60 | 18.9 |\n 30208 | 2024-02-07 23:43:16 | MASTER-SAAO | (10h 48m 42.99s , +44d 48m 08.2s) | C | 60 | 19.0 |\n 30288 | 2024-02-07 23:44:36 | MASTER-SAAO | (10h 58m 11.96s , +45d 01m 41.4s) | C | 60 | 18.5 |\n 30288 | 2024-02-07 23:44:36 | MASTER-SAAO | (11h 09m 57.18s , +44d 49m 28.0s) | C | 60 | 18.4 |\n 30367 | 2024-02-07 23:45:55 | MASTER-SAAO | (10h 58m 56.07s , +46d 54m 42.5s) | C | 60 | 18.2 |\n 30367 | 2024-02-07 23:45:55 | MASTER-SAAO | (11h 11m 05.24s , +46d 42m 30.3s) | C | 60 | 18.2 |\n 30447 | 2024-02-07 23:47:15 | MASTER-SAAO | (11h 19m 13.61s , +45d 01m 31.2s) | C | 60 | 18.8 |\n 30447 | 2024-02-07 23:47:15 | MASTER-SAAO | (11h 30m 59.22s , +44d 49m 18.3s) | C | 60 | 18.6 |\n 30527 | 2024-02-07 23:48:35 | MASTER-SAAO | (10h 15m 12.01s , +46d 55m 21.2s) | C | 60 | 18.8 |\n 30527 | 2024-02-07 23:48:35 | MASTER-SAAO | (10h 27m 19.81s , +46d 43m 07.7s) | C | 60 | 18.9 |\n 30687 | 2024-02-07 23:51:15 | MASTER-SAAO | (11h 40m 50.43s , +44d 59m 26.2s) | C | 60 | 18.7 |\n 30694 | 2024-02-07 23:51:22 | MASTER-Tavrida | (10h 02m 03.18s , +51d 07m 30.8s) | C | 60 | 18.4 |\n 30766 | 2024-02-07 23:52:34 | MASTER-Tavrida | (10h 14m 49.73s , +51d 08m 25.1s) | C | 60 | 18.3 |\n 30838 | 2024-02-07 23:53:45 | MASTER-Tavrida | (10h 06m 38.36s , +53d 03m 12.2s) | C | 60 | 18.1 |\n 30910 | 2024-02-07 23:54:58 | MASTER-Tavrida | (10h 19m 50.47s , +53d 02m 28.3s) | C | 60 | 18.0 |\n 31085 | 2024-02-07 23:57:53 | MASTER-SAAO | (10h 37m 13.10s , +46d 56m 21.2s) | C | 60 | 19.0 |\n 31085 | 2024-02-07 23:57:53 | MASTER-SAAO | (10h 49m 21.12s , +46d 44m 05.7s) | C | 60 | 18.8 |\n 31165 | 2024-02-07 23:59:12 | MASTER-SAAO | (10h 37m 14.81s , +45d 01m 27.9s) | C | 60 | 19.0 |\n 31165 | 2024-02-07 23:59:12 | MASTER-SAAO | (10h 48m 58.52s , +44d 49m 12.0s) | C | 60 | 19.0 |\n 31244 | 2024-02-08 00:00:32 | MASTER-SAAO | (10h 58m 21.92s , +45d 00m 15.1s) | C | 60 | 18.6 |\n 31244 | 2024-02-08 00:00:32 | MASTER-SAAO | (11h 10m 05.88s , +44d 47m 58.7s) | C | 60 | 18.5 |\n 31280 | 2024-02-08 00:01:08 | MASTER-Tavrida | (10h 06m 23.18s , +56d 49m 26.7s) | C | 60 | 18.5 |\n 31324 | 2024-02-08 00:01:52 | MASTER-SAAO | (10h 59m 18.52s , +46d 54m 24.2s) | C | 60 | 18.5 |\n 31324 | 2024-02-08 00:01:52 | MASTER-SAAO | (11h 11m 26.61s , +46d 42m 07.8s) | C | 60 | 18.4 |\n 31404 | 2024-02-08 00:03:12 | MASTER-SAAO | (11h 19m 36.60s , +45d 01m 52.5s) | C | 60 | 18.4 |\n 31404 | 2024-02-08 00:03:12 | MASTER-SAAO | (11h 31m 21.66s , +44d 49m 36.9s) | C | 60 | 18.1 |\n 31484 | 2024-02-08 00:04:31 | MASTER-SAAO | (10h 15m 16.96s , +46d 55m 03.6s) | C | 60 | 18.8 |\n 31484 | 2024-02-08 00:04:31 | MASTER-SAAO | (10h 27m 24.48s , +46d 42m 48.3s) | C | 60 | 18.9 |\n 31500 | 2024-02-08 00:04:48 | MASTER-Tavrida | (10h 10m 49.38s , +49d 14m 01.9s) | C | 60 | 18.4 |\n 31643 | 2024-02-08 00:07:10 | MASTER-SAAO | (11h 40m 45.47s , +45d 00m 35.9s) | C | 60 | 18.5 |\n 31800 | 2024-02-08 00:09:47 | MASTER-Tavrida | (10h 14m 47.17s , +51d 08m 37.8s) | C | 60 | 18.2 |\n 31871 | 2024-02-08 00:10:58 | MASTER-Tavrida | (10h 19m 46.00s , +53d 01m 44.7s) | C | 60 | 18.0 |\n 32017 | 2024-02-08 00:13:25 | MASTER-Tavrida | (09h 56m 15.13s , +47d 20m 30.0s) | C | 60 | 18.0 |\n 32091 | 2024-02-08 00:14:38 | MASTER-Tavrida | (10h 12m 18.25s , +54d 57m 25.2s) | C | 60 | 17.8 |\n 32280 | 2024-02-08 00:17:48 | MASTER-SAAO | (10h 59m 26.26s , +46d 55m 36.7s) | C | 60 | 18.6 |\n 32280 | 2024-02-08 00:17:48 | MASTER-SAAO | (11h 11m 34.38s , +46d 43m 19.2s) | C | 60 | 18.5 |\n 32440 | 2024-02-08 00:20:27 | MASTER-SAAO | (10h 15m 23.30s , +46d 56m 20.1s) | C | 60 | 18.7 |\n 32440 | 2024-02-08 00:20:27 | MASTER-SAAO | (10h 27m 31.27s , +46d 44m 01.7s) | C | 60 | 18.9 |\n 32599 | 2024-02-08 00:23:07 | MASTER-SAAO | (11h 41m 09.27s , +45d 00m 25.8s) | C | 60 | 18.0 |\n 32976 | 2024-02-08 00:29:24 | MASTER-Tavrida | (09h 47m 45.08s , +49d 13m 51.6s) | C | 60 | 17.7 |\n 33049 | 2024-02-08 00:30:37 | MASTER-Tavrida | (09h 56m 08.05s , +47d 19m 18.1s) | C | 60 | 17.9 |\n 33122 | 2024-02-08 00:31:49 | MASTER-Tavrida | (10h 07m 51.54s , +47d 20m 44.1s) | C | 60 | 17.7 |\n 33195 | 2024-02-08 00:33:03 | MASTER-Tavrida | (10h 12m 22.16s , +54d 55m 48.5s) | C | 60 | 17.7 |\n 33237 | 2024-02-08 00:33:45 | MASTER-SAAO | (11h 43m 36.63s , +46d 54m 21.0s) | C | 60 | 18.1 |\n 33268 | 2024-02-08 00:34:15 | MASTER-Tavrida | (10h 26m 04.80s , +54d 55m 16.1s) | C | 60 | 17.9 |\n 33413 | 2024-02-08 00:36:41 | MASTER-Tavrida | (10h 14m 23.46s , +58d 44m 44.2s) | C | 60 | 17.6 |\n 34193 | 2024-02-08 00:49:41 | MASTER-SAAO | (11h 43m 47.20s , +46d 55m 34.0s) | C | 60 | 18.2 |\n 34878 | 2024-02-08 01:01:06 | MASTER-Tavrida | (09h 47m 36.18s , +49d 13m 04.4s) | C | 60 | 17.7 |\n 34950 | 2024-02-08 01:02:17 | MASTER-Tavrida | (09h 56m 11.62s , +47d 18m 26.9s) | C | 60 | 17.8 |\n 35022 | 2024-02-08 01:03:30 | MASTER-Tavrida | (10h 07m 48.72s , +47d 17m 54.5s) | C | 60 | 17.5 |\n 35095 | 2024-02-08 01:04:43 | MASTER-Tavrida | (10h 12m 20.55s , +54d 54m 15.8s) | C | 60 | 17.8 |\n 35113 | 2024-02-08 01:05:01 | MASTER-SAAO | (11h 44m 06.79s , +46d 55m 55.0s) | C | 60 | 18.3 |\n 35168 | 2024-02-08 01:05:55 | MASTER-Tavrida | (10h 26m 05.03s , +54d 56m 04.9s) | C | 60 | 17.9 |\n 35313 | 2024-02-08 01:08:21 | MASTER-Tavrida | (10h 14m 22.78s , +58d 43m 49.7s) | C | 60 | 18.0 |\n 36048 | 2024-02-08 01:20:35 | MASTER-SAAO | (11h 22m 07.36s , +46d 55m 45.4s) | C | 60 | 18.8 |\n 36048 | 2024-02-08 01:20:35 | MASTER-SAAO | (11h 34m 18.26s , +46d 43m 25.1s) | C | 60 | 18.6 |\n 36707 | 2024-02-08 01:31:35 | MASTER-Tavrida | (09h 47m 42.10s , +49d 11m 05.0s) | C | 60 | 18.4 |\n 36779 | 2024-02-08 01:32:47 | MASTER-Tavrida | (10h 07m 48.59s , +47d 16m 59.8s) | C | 60 | 18.1 |\n 36854 | 2024-02-08 01:34:01 | MASTER-Tavrida | (10h 26m 06.00s , +54d 53m 45.6s) | C | 60 | 18.2 |\n 36926 | 2024-02-08 01:35:13 | MASTER-Tavrida | (10h 14m 16.50s , +58d 42m 44.2s) | C | 60 | 18.1 |\n 36981 | 2024-02-08 01:36:09 | MASTER-SAAO | (11h 22m 06.23s , +46d 56m 02.1s) | C | 60 | 18.7 |\n 36981 | 2024-02-08 01:36:09 | MASTER-SAAO | (11h 34m 17.51s , +46d 43m 42.0s) | C | 60 | 18.6 |\n 37740 | 2024-02-08 01:48:48 | MASTER-Tavrida | (10h 26m 03.58s , +51d 06m 19.8s) | C | 60 | 18.2 |\n 37813 | 2024-02-08 01:50:01 | MASTER-Tavrida | (09h 54m 38.84s , +45d 21m 58.0s) | C | 60 | 18.2 |\n 37966 | 2024-02-08 01:52:34 | MASTER-Tavrida | (10h 21m 35.98s , +49d 12m 03.2s) | C | 60 | 18.3 |\n 38039 | 2024-02-08 01:53:47 | MASTER-Tavrida | (10h 31m 37.27s , +53d 00m 25.3s) | C | 60 | 18.1 |\n 38112 | 2024-02-08 01:55:00 | MASTER-Tavrida | (10h 18m 26.21s , +47d 16m 58.7s) | C | 60 | 18.2 |\n 38186 | 2024-02-08 01:56:14 | MASTER-Tavrida | (10h 07m 48.37s , +60d 34m 26.5s) | C | 60 | 18.2 |\n 38780 | 2024-02-08 02:06:08 | MASTER-Tavrida | (10h 25m 58.05s , +51d 04m 44.7s) | C | 60 | 18.1 |\n 38926 | 2024-02-08 02:08:34 | MASTER-Tavrida | (09h 54m 35.46s , +45d 23m 01.5s) | C | 60 | 18.1 |\n 38998 | 2024-02-08 02:09:46 | MASTER-Tavrida | (10h 05m 54.44s , +45d 21m 57.6s) | C | 60 | 18.2 |\n 39222 | 2024-02-08 02:13:30 | MASTER-Tavrida | (10h 21m 35.89s , +49d 12m 21.5s) | C | 60 | 17.9 |\n 39294 | 2024-02-08 02:14:42 | MASTER-Tavrida | (10h 33m 52.49s , +49d 11m 50.2s) | C | 60 | 17.8 |\n 39366 | 2024-02-08 02:15:54 | MASTER-Tavrida | (10h 31m 29.00s , +52d 58m 42.7s) | C | 60 | 17.5 |\n 39439 | 2024-02-08 02:17:07 | MASTER-Tavrida | (10h 44m 47.29s , +52d 59m 32.4s) | C | 60 | 17.8 |\n 39515 | 2024-02-08 02:18:23 | MASTER-Tavrida | (10h 18m 23.22s , +47d 18m 01.2s) | C | 60 | 17.6 |\n 39588 | 2024-02-08 02:19:36 | MASTER-Tavrida | (10h 30m 06.19s , +47d 17m 03.4s) | C | 60 | 17.6 |\n 39662 | 2024-02-08 02:20:50 | MASTER-Tavrida | (10h 07m 49.83s , +60d 35m 17.3s) | C | 60 | 17.4 |\n 39735 | 2024-02-08 02:22:03 | MASTER-Tavrida | (10h 23m 52.08s , +60d 35m 09.9s) | C | 60 | 17.6 |\n 40544 | 2024-02-08 02:35:32 | MASTER-Tavrida | (10h 19m 12.13s , +56d 45m 00.1s) | C | 60 | 16.8 |\n 40617 | 2024-02-08 02:36:44 | MASTER-Tavrida | (10h 33m 46.28s , +56d 45m 42.3s) | C | 60 | 16.9 |\n 40690 | 2024-02-08 02:37:58 | MASTER-Tavrida | (10h 25m 59.39s , +51d 04m 52.4s) | C | 60 | 17.2 |\n 40763 | 2024-02-08 02:39:11 | MASTER-Tavrida | (10h 38m 37.74s , +51d 03m 52.4s) | C | 60 | 17.5 |\n 40838 | 2024-02-08 02:40:25 | MASTER-Tavrida | (09h 54m 38.78s , +45d 21m 40.7s) | C | 60 | 16.9 |\n 41135 | 2024-02-08 02:45:23 | MASTER-Tavrida | (10h 21m 35.53s , +49d 08m 53.7s) | C | 60 | 17.3 |\n 41207 | 2024-02-08 02:46:35 | MASTER-Tavrida | (10h 33m 50.25s , +49d 09m 45.1s) | C | 60 | 17.1 |\n 41280 | 2024-02-08 02:47:48 | MASTER-Tavrida | (10h 31m 30.77s , +52d 59m 09.5s) | C | 60 | 16.8 |\n 41425 | 2024-02-08 02:50:13 | MASTER-Tavrida | (10h 18m 25.62s , +47d 16m 30.1s) | C | 60 | 16.7 |\n 41497 | 2024-02-08 02:51:25 | MASTER-Tavrida | (10h 30m 03.21s , +47d 16m 07.0s) | C | 60 | 16.5 |\n 41571 | 2024-02-08 02:52:39 | MASTER-Tavrida | (10h 07m 42.72s , +60d 34m 01.9s) | C | 60 | 16.3 |\n 42861 | 2024-02-08 03:14:09 | MASTER-Tavrida | (10h 33m 45.04s , +56d 46m 07.8s) | C | 60 | 16.9 |\n 42934 | 2024-02-08 03:15:22 | MASTER-Tavrida | (10h 38m 33.89s , +51d 03m 47.7s) | C | 60 | 16.9 |\n 43008 | 2024-02-08 03:16:36 | MASTER-Tavrida | (10h 05m 50.23s , +45d 21m 09.4s) | C | 60 | 16.9 |\n 43159 | 2024-02-08 03:19:07 | MASTER-Tavrida | (10h 33m 44.43s , +49d 08m 25.5s) | C | 60 | 16.8 |\n 43305 | 2024-02-08 03:21:33 | MASTER-Tavrida | (10h 30m 05.58s , +47d 16m 04.4s) | C | 60 | 15.6 |\n 43379 | 2024-02-08 03:22:46 | MASTER-Tavrida | (10h 23m 51.08s , +60d 32m 13.5s) | C | 60 | 15.7 |\n 44348 | 2024-02-08 03:38:55 | MASTER-Tavrida | (10h 16m 01.88s , +45d 18m 39.5s) | C | 60 | 17.0 |\n 44576 | 2024-02-08 03:42:44 | MASTER-Tavrida | (10h 27m 49.65s , +58d 39m 18.4s) | C | 60 | 15.4 |\n 45390 | 2024-02-08 03:56:18 | MASTER-Tavrida | (10h 04m 50.35s , +43d 25m 08.1s) | C | 60 | 16.6 |\n 45872 | 2024-02-08 04:04:20 | MASTER-Tavrida | (10h 16m 02.26s , +45d 17m 43.2s) | C | 60 | 16.4 |\n 45945 | 2024-02-08 04:05:33 | MASTER-Tavrida | (10h 27m 26.92s , +45d 18m 31.7s) | C | 60 | 16.5 |\nFilter C is a clear (unfiltred) band.\n\n\nThe observation and reduction will continue.\nThe message may be cited.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35703.",
"published": "2024-02-08T07:31:16.148883Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-08T07:31:16.148898Z",
"modified": "2024-02-08T07:31:16.158457Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5997,
"topic": "gcn.circular",
"uuid": "55670db5-a5d3-4187-9a65-2418e6a80458",
"title": "GRB 240205B: AstroSat CZTI detection",
"submitter": "Hop gcn.circular",
"authors": "Gaurav Waratkar at IIT Bombay <gauravwaratkar24@gmail.com>",
"data": {
"date": "24/02/08 15:28:38 GMT",
"from": "Gaurav Waratkar at IIT Bombay <gauravwaratkar24@gmail.com>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35704"
},
"title": "GCN CIRCULAR",
"number": "35704",
"subject": "GRB 240205B: AstroSat CZTI detection"
},
"message_text": "J. Joshi (IUCAA), G. Waratkar (IITB), A. Vibhute (IUCAA), V. Bhalerao (IITB), D. Bhattacharya (Ashoka University/IUCAA), A. R. Rao (IUCAA/TIFR), and S. Vadawale (PRL) report on behalf of the AstroSat CZTI collaboration:\n\nAnalysis of AstroSat CZTI data with the CIFT framework (Sharma et al., 2021, JApA, 42, 73) showed the detection of a long-duration GRB 240205B which was also detected by Fermi-GBM (Fermi GBM team, GCN Circ. 35682), Swift-BAT (Moss et al., GCN Circ. 35683), and GECAM (Zhang et al., GCN Circ. 35689).\n\nThe source was clearly detected in the CZT detectors in the 20-200 keV energy range. The light curve showed multiple peaks of emission with the strongest peak at 2024-02-05 22:13:46.50 UTC. The measured peak count rate associated with the burst is 731 (+51, -56) counts/s above the background in the combined data of all quadrants, with a total of 3027 (+294, -448) counts. The local mean background count rate was 295 (+3, -2) counts/s. Using cumulative rates, we measure a T90 of 43 (+3, -2) s.\n\nThe source was also clearly detected in the CsI anticoincidence (Veto) detector in the 100-500 keV energy range. The light curve showed multiple peaks of emission with the strongest peak at 2024-02-05 22:13:45.31 UTC. The measured peak count rate associated with the burst is 632 (+69, -74) counts/s above the background in the combined data of all quadrants, with a total of 2944 (+573, -674) counts. The local mean background count rate was 1220 (+4, -6) counts/s. We measure a T90 of 42 (+2, -3) s from the cumulative Veto light curve.\n\nCZTI is built by a TIFR-led consortium of institutes across India, including VSSC, URSC, IUCAA, SAC, and PRL. The Indian Space Research Organisation funded, managed, and facilitated the project.\n\nCZTI GRB detections are reported regularly on the payload site at:\nhttp://astrosat.iucaa.in/czti/?q=grb\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35704.",
"published": "2024-02-08T15:28:52.981705Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-08T15:28:52.981716Z",
"modified": "2024-02-08T15:28:52.989517Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6005,
"topic": "gcn.circular",
"uuid": "4193a4ba-3258-4931-b8af-b56f89939c4e",
"title": "GRB 240209A: Fermi GBM Final Localization",
"submitter": "Hop gcn.circular",
"authors": "Christian Malacaria at ISSI <cmalacaria.astro@gmail.com>",
"data": {
"date": "24/02/09 21:46:46 GMT",
"from": "Christian Malacaria at ISSI <cmalacaria.astro@gmail.com>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35712"
},
"title": "GCN CIRCULAR",
"number": "35712",
"subject": "GRB 240209A: Fermi GBM Final Localization"
},
"message_text": "The Fermi GBM team reports the detection of a likely LONG GRB.\n\n\"At 06:19:19.82 UT on 09 April 2024, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 240209A (trigger 729152364 / 240209263).\n\nThe on-ground calculated location, using the GBM trigger data,\nis RA = 259.8, DEC = 70.5 (J2000 degrees, equivalent\nto 17h 19m, 70d 30'), with an uncertainty of 9.1 degrees.\n\nThe angle from the Fermi LAT boresight at the GBM trigger time is 31 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240209263/quicklook/glg_skymap_all_bn240209263.png\n\nThe HEALPix FITS file, including the estimated localization systematic, can\nbe found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240209263/quicklook/glg_healpix_all_bn240209263.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240209263/quicklook/glg_lc_medres34_bn240209263.gif\"\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35712.",
"published": "2024-02-09T21:47:05.457148Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-09T21:47:05.457163Z",
"modified": "2024-02-09T21:47:05.465025Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6015,
"topic": "gcn.circular",
"uuid": "45ead8e2-cd83-4cb3-bad2-2232909cb5a6",
"title": "GRB 240214A: Tiled Swift observations",
"submitter": "Hop gcn.circular",
"authors": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
"data": {
"date": "24/02/14 07:22:27 GMT",
"from": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35722"
},
"title": "GCN CIRCULAR",
"number": "35722",
"subject": "GRB 240214A: Tiled Swift observations"
},
"message_text": "\nP. A. Evans (U. Leicester) reports on behalf of the Swift team:\n\nSwift has initiated a series of observations, tiled on the sky, of the\nMAXI GRB 240214A. Automated analysis of the XRT data will\nbe presented online at http://www.swift.ac.uk/xrt_products/TILED_GRB00122\n\nAny uncatalogued X-ray sources detected in this analysis will be\nreported on this website and via GCN COUNTERPART notices. The probability of finding\nserendipitous sources, unrelated to the MAXI event is high: any X-ray source\nconsidered to be a probable afterglow candidate will be reported via a GCN Circular\nafter manual consideration.\n\nDetails of the XRT automated analysis methods are detailed in Evans et\nal. (2007, A&A, 469, 379; 2009, MNRAS, 397, 1177 and 2014, ApJS, 210, 8).\n\nThis circular is an official product of the Swift-XRT team.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35722.",
"published": "2024-02-14T07:22:41.124260Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-14T07:22:41.124274Z",
"modified": "2024-02-14T07:22:41.135630Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 5998,
"topic": "gcn.circular",
"uuid": "f078753b-5d64-4489-ac56-0395d58b2628",
"title": "GRB240204A: Swift/UVOT Upper Limits",
"submitter": "Hop gcn.circular",
"authors": "Mike Siegel at PSU/Swift MOC <mhs18@psu.edu>",
"data": {
"date": "24/02/08 15:37:24 GMT",
"from": "Mike Siegel at PSU/Swift MOC <mhs18@psu.edu>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35705"
},
"title": "GCN CIRCULAR",
"number": "35705",
"subject": "GRB240204A: Swift/UVOT Upper Limits"
},
"message_text": "M. H. Siegel (PSU) and and S. B Cenko (GSFC) report on behalf of the\nSwift/UVOT team:\n\nThe Swift/UVOT began settled observations of the field of GRB 240204A\n4.8 ks after the BAT trigger (Cenko et al., GCN Circ 35666). No optical\nafterglow consistent with either the optical (Pozanenko et al., GCN\nCirc. 35670) or X-ray (Beardmore et al., GCN Circ. 35671) position is\ndetected in the initial UVOT exposures.\n\nPreliminary 3-sigma upper limits using the UVOT photometric system\n(Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the initial exposures of\nthe candidate afterglow field are:\n\nFilter T_start(s) T_stop(s) Exp(s) Mag\n\nwhite 5887 6087 196 >20.70\nv 4862 6498 393 >19.32\nb 5683 5882 196 >19.98\nu 5477 28539 1048 >20.54\nuvw1 5272 5472 196 >19.26\nuvm2 5067 6669 360 >19.36\nuvw2 6093 6293 196 >19.42\n\nThe magnitudes in the table are not corrected for the Galactic extinction\ndue to the high but uncertain reddening in the direction of the burst\n(Schlegel et al. 1998).\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35705.",
"published": "2024-02-08T15:37:35.699129Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-08T15:37:35.699143Z",
"modified": "2024-02-08T15:37:35.704956Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6598,
"topic": "gcn.circular",
"uuid": "30f91cdf-d2a1-440d-bf0f-f550f365de38",
"title": "GRB 240415B: Swift/BAT-GUANO Correction",
"submitter": "Hop gcn.circular",
"authors": "Jimmy DeLaunay at Penn State <delauj2@gmail.com>",
"data": {
"date": "24/04/15 22:50:31 GMT",
"from": "Jimmy DeLaunay at Penn State <delauj2@gmail.com>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/36126"
},
"title": "GCN CIRCULAR",
"number": "36126",
"subject": "GRB 240415B: Swift/BAT-GUANO Correction"
},
"message_text": "UVOT and XRT observations have been requested and approved.\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/36126.",
"published": "2024-04-15T22:50:45.124102Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-04-15T22:50:45.124126Z",
"modified": "2024-04-15T22:50:45.135506Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6001,
"topic": "gcn.circular",
"uuid": "5c7fa32f-b0f5-4bf9-ac01-c2e120363b19",
"title": "GRB 240205B: PRIME near infrared detection",
"submitter": "Hop gcn.circular",
"authors": "Joe Durbak at UMD <gcn.joedurbak@gmail.com>",
"data": {
"date": "24/02/08 21:36:03 GMT",
"from": "Joe Durbak at UMD <gcn.joedurbak@gmail.com>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35708"
},
"title": "GCN CIRCULAR",
"number": "35708",
"subject": "GRB 240205B: PRIME near infrared detection"
},
"message_text": "O. Guiffreda (UMD), J. Durbak (UMD), A. S. Kutyrev (NASA/GSFC), E. Troja (U Rome), K. De (MIT), S. B. Cenko (NASA/GSFC)\n\nFollowing the FERMI GBM detection (GCN 35682), and Swift BAT detection (Moss et al. GCN 35683), we observed the transient field in the J filter with PRIME ~2 days after FERMI & Swift detection.\n\nAt the position of the optical counterpart reported by MASTER (Lipunov et al. GCN 35684) and Skynet (Dutton et al. GCN 35687), we detect an uncatalogued source in J band. Using nearby 2MASS stars for preliminary calibration we derive the following magnitudes, not corrected for Galactic extinction: \n\nFilter | Mag(AB) | SNR | Seeing | Total exposure time (s) \n-------|----------------|-----|--------|-------------------------\nJ | 19.65 +/- 0.15 |11.8 | 2.138â | 800\n\n\nPRIME is a 1.8m telescope with 1.56 square degree FOV (0.5 arcsec/pixel) located in Sutherland, South Africa.\n\nFurther observations are planned.\n\nWe thank the Osaka University observers at PRIME and the staff at SAAO for their support with these observations.\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35708.",
"published": "2024-02-08T21:36:10.339586Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-08T21:36:10.339598Z",
"modified": "2024-02-08T21:36:10.346178Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6002,
"topic": "gcn.circular",
"uuid": "24092909-861f-4cb6-a503-d4d833d33a5a",
"title": "Fermi-LAT gamma-ray observations of IceCube-240204A",
"submitter": "Hop gcn.circular",
"authors": "Simone Garrappa at DESY <simone.garrappa@desy.de>",
"data": {
"date": "24/02/09 09:35:16 GMT",
"from": "Simone Garrappa at DESY <simone.garrappa@desy.de>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35709"
},
"title": "GCN CIRCULAR",
"number": "35709",
"subject": "Fermi-LAT gamma-ray observations of IceCube-240204A"
},
"message_text": "S. Garrappa (Weizmann Institute of Science), C. Bartolini (INFN Bari), S. Buson (Univ. of Wuerzburg), L. Pfeiffer (Univ. of Wuerzburg) and J. Sinapius (DESY) on behalf of the Fermi-LAT collaboration:\n\nWe report an analysis of observations of the vicinity of the IC240204A high-energy neutrino event (GCN 35665) with all-sky survey data from the Large Area Telescope (LAT), on board the Fermi Gamma-ray Space Telescope. The IceCube event was detected on 2024-02-04 at 09:09:00.44 UT (T0) with J2000 position RA = 348.40 (+1.10, -1.00) deg, Decl. = +10.28 (+0.72, -0.76) deg (90% PSF containment). No catalogued gamma-ray (>100 MeV; The Fermi-LAT collaboration 2022, ApJS, 260, 53) sources are located within the 90% IC240204A localization region.\n\nWe searched for intermediate (days to years) timescale emission from a new gamma-ray transient source. Preliminary analysis indicates no significant (> 5 sigma) new excess emission (> 100 MeV) at the IC240204A best-fit position. Assuming a power-law spectrum (photon index = 2.0 fixed) for a point source at the IC240204A best-fit position, the >100 MeV flux upper limit (95% confidence) is < 4.1e-10 ph cm^-2 s^-1 for ~15-years (2008-08-04 to 2024-02-04 UTC), and < 4.1e-9 (<4.0e-8) ph cm^-2 s^-1 for a 1-month (1-day) integration time before T0.\n\nSince Fermi normally operates in an all-sky scanning mode, regular monitoring of this region will continue. For these observations the Fermi-LAT contact persons is S. Garrappa (simone.garrappa at weizmann.ac.il).\n\nThe Fermi-LAT is a pair conversion telescope designed to cover the energy band from 20 MeV to greater than 300 GeV. It is the product of an international collaboration between NASA and DOE in the U.S. and many scientific institutions across France, Italy, Japan and Sweden.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35709.",
"published": "2024-02-09T09:35:32.288136Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-09T09:35:32.288152Z",
"modified": "2024-02-09T09:35:32.295946Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6003,
"topic": "gcn.circular",
"uuid": "0e009f41-fc11-4563-8f84-9f8ad10e6db0",
"title": "IPN triangulation of GRB 240205A (short)",
"submitter": "Hop gcn.circular",
"authors": "Dmitry Svinkin at Ioffe Institute <svinkin@mail.ioffe.ru>",
"data": {
"date": "24/02/09 16:02:13 GMT",
"from": "Dmitry Svinkin at Ioffe Institute <svinkin@mail.ioffe.ru>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35710"
},
"title": "GCN CIRCULAR",
"number": "35710",
"subject": "IPN triangulation of GRB 240205A (short)"
},
"message_text": "D. Svinkin, D. Frederiks, A. Ridnaia, A. Lysenko,\nand T. Cline on behalf of the Konus-Wind team,\n\nA. Goldstein, M. S. Briggs, C. Wilson-Hodge,\nand E. Burns on behalf of the Fermi GBM team,\n\nE. Bozzo and C. Ferrigno, on behalf of the INTEGRAL SPI-ACS GRB team,\n\nand\n\nS. Barthelmy, J. Cummings, H. Krimm, D. Palmer, and A. Tohuvavohu\non behalf of the Swift-BAT team,\nreport:\n\nThe short-duration GRB 240205A\n(Ferm-GBM detection: The Fermi GBM team, GCN 35679;\nGlowbug detection: Cheung, et al., GCN 35707)\nwas detected by Fermi (GBM trigger 728857595), Konus-Wind,\nINTEGRAL (SPI-ACS), and Swift (BAT) at about 73591 s UT (20:26:31).\nThe burst was outside the coded field of view of the BAT.\n\nWe have triangulated this GRB to the following annuli:\n---------------------------------------------------\nannulus R.A. Dec. R dR (3sigma)\n (deg) (deg) (deg) (deg)\n---------------------------------------------------\nKonus-GBM 297.778 -19.219 40.665 0.735\nGBM-SPI-ACS 180.960 84.546 70.289 6.208\n---------------------------------------------------\nThe annuli intersect to form a long 60.9 sq.deg (3 sigma)\nlocalization region.\n\nThis localization may be improved.\n\nA triangulation map and HEALPix FITS file are posted at\nhttp://www.ioffe.ru/LEA/GRBs/GRB240205_T73586/IPN\n\nThe Konus-Wind time history and spectrum will be given\nin a forthcoming GCN Circular.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35710.",
"published": "2024-02-09T16:02:30.367784Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-09T16:02:30.367802Z",
"modified": "2024-02-09T16:02:30.375579Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6004,
"topic": "gcn.circular",
"uuid": "15fa5c01-b585-4f31-b967-8cdae57c1df8",
"title": "Fermi trigger No 729152364: Global MASTER-Net observations report",
"submitter": "Hop gcn.circular",
"authors": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"data": {
"date": "24/02/09 18:45:44 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35711"
},
"title": "GCN CIRCULAR",
"number": "35711",
"subject": "Fermi trigger No 729152364: Global MASTER-Net observations report"
},
"message_text": "V. Lipunov, V.Kornilov, E. Gorbovskoy, K. Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, V.Senik, D. Vlasenko,\nG.Antipov, D.Zimnukhov, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D. Cheryasov, Ya.Kechin, Yu.Tselik, A. Sosnovskij\n(Lomonosov Moscow State University, SAI, Physics Department),\n\nR. Podesta, C.Lopez, F. Podesta, C.Francile\n(Observatorio Astronomico Felix Aguilar OAFA),\n\nR. Rebolo, M. Serra\n(The Instituto de Astrofisica de Canarias),\n\nD. Buckley\n(South African Astronomical Observatory),\n\nO.A. Gress, N.M. Budnev, O.Ershova\n(Irkutsk State University, API),\n\nL.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez,\nA.R.Corella, L.H.Rodriguez\n(INAOE, Guillermo Haro Astrophysics Observatory),\n\nA. Tlatov, D. Dormidontov\n(Kislovodsk Solar Station of the Pulkovo Observatory),\n\nV. Yurkov, A. Gabovich\n(Blagoveschensk Educational State University)\n\nMASTER-Tunka robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the Fermi GRB240209.26 (trigger No 729152364,17h 19m 04.80s , +70d 29m 24.0s, R=9.13) errorbox 1094 sec after notice time and 33812 sec after trigger time at 2024-02-09 15:42:52 UT, with upper limit up to 18.9 mag. The observations began at zenith distance = 56 deg. The sun altitude is -48.8 deg.\n\nMASTER-Tavrida robotic telescope located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB240209.26 errorbox 2344 sec after notice time and 35062 sec after trigger time at 2024-02-09 16:03:42 UT, with upper limit up to 18.8 mag. Observations started at twilight. The observations began at zenith distance = 68 deg. The sun altitude is -11.4 deg.\n\nThe galactic latitude b = 33 deg., longitude l = 101 deg.\n\n\nReal time updated cover map and OT discovered available here:\nhttps://master.sai.msu.ru/site/master2/observ.php?id#74442\n\nWe obtain a following upper limits.\n\nTmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n 33843 | 2024-02-09 15:42:52 | MASTER-Tunka | (17h 48m 40.52s , +71d 18m 47.3s) | C | 60 | 18.3 |\n 34177 | 2024-02-09 15:48:27 | MASTER-Tunka | (17h 13m 02.93s , +67d 31m 23.7s) | C | 60 | 18.3 |\n 34250 | 2024-02-09 15:49:39 | MASTER-Tunka | (17h 34m 04.79s , +67d 30m 57.1s) | C | 60 | 18.3 |\n 34322 | 2024-02-09 15:50:51 | MASTER-Tunka | (17h 17m 25.05s , +69d 25m 43.5s) | C | 60 | 18.9 |\n 34394 | 2024-02-09 15:52:03 | MASTER-Tunka | (17h 40m 15.32s , +69d 26m 19.0s) | C | 60 | 18.7 |\n 34645 | 2024-02-09 15:56:14 | MASTER-Tunka | (16h 34m 07.01s , +69d 26m 41.0s) | C | 60 | 18.3 |\n 34717 | 2024-02-09 15:57:27 | MASTER-Tunka | (16h 57m 01.47s , +69d 26m 08.8s) | C | 60 | 18.0 |\n 34790 | 2024-02-09 15:58:40 | MASTER-Tunka | (17h 23m 51.63s , +71d 21m 02.7s) | C | 60 | 17.6 |\n 34863 | 2024-02-09 15:59:53 | MASTER-Tunka | (17h 48m 50.92s , +71d 18m 38.1s) | C | 60 | 17.1 |\n 34938 | 2024-02-09 16:01:08 | MASTER-Tunka | (16h 36m 20.84s , +71d 21m 34.1s) | C | 60 | 17.1 |\n 35017 | 2024-02-09 16:02:26 | MASTER-Tunka | (17h 01m 22.22s , +71d 21m 41.7s) | C | 60 | 16.8 |\n 35089 | 2024-02-09 16:03:38 | MASTER-Tunka | (17h 13m 17.47s , +67d 32m 19.3s) | C | 60 | 15.9 |\n 35093 | 2024-02-09 16:03:42 | MASTER-Tavrida | (16h 29m 39.21s , +67d 57m 24.9s) | C | 60 | 16.8 |\n 35274 | 2024-02-09 16:06:43 | MASTER-Tavrida | (16h 38m 05.91s , +69d 52m 08.3s) | C | 60 | 17.5 |\n 35345 | 2024-02-09 16:07:54 | MASTER-Tavrida | (16h 11m 23.58s , +73d 41m 03.2s) | C | 60 | 17.6 |\n 35418 | 2024-02-09 16:09:07 | MASTER-Tavrida | (16h 23m 39.70s , +66d 03m 56.7s) | C | 60 | 16.9 |\n 35507 | 2024-02-09 16:10:36 | MASTER-Tavrida | (15h 01m 28.23s , +73d 05m 39.7s) | C | 60 | 17.9 |\n 35600 | 2024-02-09 16:12:09 | MASTER-Tavrida | (15h 45m 03.76s , +64d 12m 18.8s) | C | 60 | 17.3 |\n 35691 | 2024-02-09 16:13:40 | MASTER-Tavrida | (15h 13m 55.53s , +76d 52m 44.8s) | C | 60 | 18.1 |\n 36259 | 2024-02-09 16:23:08 | MASTER-Tavrida | (16h 29m 45.25s , +67d 58m 02.5s) | C | 60 | 17.5 |\n 36330 | 2024-02-09 16:24:20 | MASTER-Tavrida | (16h 50m 47.54s , +67d 58m 30.7s) | C | 60 | 17.6 |\n 36513 | 2024-02-09 16:27:22 | MASTER-Tavrida | (15h 30m 42.13s , +68d 02m 30.2s) | C | 60 | 17.7 |\n 36587 | 2024-02-09 16:28:36 | MASTER-Tavrida | (16h 38m 02.67s , +69d 52m 20.1s) | C | 60 | 17.9 |\n 36659 | 2024-02-09 16:29:48 | MASTER-Tavrida | (17h 00m 59.25s , +69d 52m 18.4s) | C | 60 | 18.3 |\n 36749 | 2024-02-09 16:31:18 | MASTER-Tavrida | (15h 54m 53.96s , +73d 03m 43.2s) | C | 60 | 18.1 |\n 36934 | 2024-02-09 16:34:23 | MASTER-Tavrida | (16h 12m 14.78s , +65d 25m 15.9s) | C | 60 | 17.6 |\n 37028 | 2024-02-09 16:35:57 | MASTER-Tavrida | (16h 43m 14.56s , +66d 05m 01.6s) | C | 60 | 17.2 |\n 37117 | 2024-02-09 16:37:26 | MASTER-Tavrida | (15h 01m 39.58s , +73d 05m 07.9s) | C | 60 | 18.0 |\n 37394 | 2024-02-09 16:42:03 | MASTER-Tavrida | (16h 03m 14.17s , +64d 13m 05.4s) | C | 60 | 17.7 |\n 37484 | 2024-02-09 16:43:34 | MASTER-Tavrida | (15h 14m 06.08s , +76d 54m 05.2s) | C | 60 | 18.3 |\n 37574 | 2024-02-09 16:45:04 | MASTER-Tavrida | (16h 11m 32.83s , +77d 29m 41.4s) | C | 60 | 18.3 |\n 37666 | 2024-02-09 16:46:36 | MASTER-Tavrida | (16h 06m 31.35s , +74d 56m 34.2s) | C | 60 | 18.4 |\n 37758 | 2024-02-09 16:48:07 | MASTER-Tavrida | (16h 56m 40.40s , +75d 35m 10.3s) | C | 60 | 18.1 |\n 37940 | 2024-02-09 16:51:09 | MASTER-Tavrida | (15h 29m 06.09s , +66d 09m 04.8s) | C | 60 | 17.6 |\n 38414 | 2024-02-09 16:59:03 | MASTER-Tavrida | (16h 29m 45.15s , +67d 58m 13.3s) | C | 60 | 17.6 |\n 38507 | 2024-02-09 17:00:37 | MASTER-Tavrida | (16h 38m 30.05s , +67d 18m 36.6s) | C | 60 | 17.5 |\n 38795 | 2024-02-09 17:05:24 | MASTER-Tavrida | (16h 38m 16.17s , +69d 53m 51.1s) | C | 60 | 17.8 |\n 38888 | 2024-02-09 17:06:58 | MASTER-Tavrida | (16h 47m 32.41s , +69d 13m 19.4s) | C | 60 | 17.8 |\n 38982 | 2024-02-09 17:08:31 | MASTER-Tavrida | (16h 11m 28.77s , +73d 43m 55.3s) | C | 60 | 18.0 |\n 39075 | 2024-02-09 17:10:04 | MASTER-Tavrida | (16h 23m 03.45s , +73d 02m 54.3s) | C | 60 | 18.1 |\n 39169 | 2024-02-09 17:11:38 | MASTER-Tavrida | (16h 23m 44.84s , +66d 04m 45.4s) | C | 60 | 17.5 |\n 39262 | 2024-02-09 17:13:12 | MASTER-Tavrida | (16h 31m 54.29s , +65d 25m 10.9s) | C | 60 | 17.1 |\n 39358 | 2024-02-09 17:14:47 | MASTER-Tavrida | (15h 18m 08.82s , +73d 46m 58.5s) | C | 60 | 18.2 |\n 39451 | 2024-02-09 17:16:20 | MASTER-Tavrida | (15h 29m 51.76s , +73d 04m 44.2s) | C | 60 | 17.9 |\n 39545 | 2024-02-09 17:17:54 | MASTER-Tavrida | (15h 45m 09.74s , +64d 14m 43.0s) | C | 60 | 17.3 |\n 39638 | 2024-02-09 17:19:28 | MASTER-Tavrida | (15h 52m 38.81s , +63d 33m 54.8s) | C | 60 | 17.6 |\n 39730 | 2024-02-09 17:21:00 | MASTER-Tavrida | (15h 35m 26.72s , +77d 35m 02.4s) | C | 60 | 18.2 |\n 39823 | 2024-02-09 17:22:32 | MASTER-Tavrida | (15h 50m 29.08s , +76d 53m 06.8s) | C | 60 | 18.2 |\n 39914 | 2024-02-09 17:24:04 | MASTER-Tavrida | (16h 25m 11.31s , +75d 35m 43.9s) | C | 60 | 18.2 |\n 40006 | 2024-02-09 17:25:35 | MASTER-Tavrida | (16h 38m 14.12s , +74d 55m 51.1s) | C | 60 | 18.2 |\n 40474 | 2024-02-09 17:33:24 | MASTER-Tavrida | (16h 50m 55.05s , +67d 59m 51.3s) | C | 60 | 17.8 |\n 40564 | 2024-02-09 17:34:53 | MASTER-Tavrida | (15h 18m 31.42s , +67d 24m 11.0s) | C | 60 | 17.9 |\n 40654 | 2024-02-09 17:36:23 | MASTER-Tavrida | (17h 01m 09.00s , +69d 51m 26.5s) | C | 60 | 18.0 |\n 40745 | 2024-02-09 17:37:55 | MASTER-Tavrida | (16h 23m 13.85s , +73d 02m 25.5s) | C | 60 | 18.1 |\n 40838 | 2024-02-09 17:39:28 | MASTER-Tavrida | (16h 43m 21.81s , +66d 06m 14.7s) | C | 60 | 17.4 |\n 40929 | 2024-02-09 17:40:58 | MASTER-Tavrida | (15h 29m 58.57s , +73d 05m 25.6s) | C | 60 | 18.1 |\n 41022 | 2024-02-09 17:42:31 | MASTER-Tavrida | (16h 03m 22.46s , +64d 14m 31.4s) | C | 60 | 17.6 |\n 41113 | 2024-02-09 17:44:02 | MASTER-Tavrida | (15h 50m 32.95s , +76d 53m 32.0s) | C | 60 | 18.1 |\n 41203 | 2024-02-09 17:45:32 | MASTER-Tavrida | (16h 56m 48.04s , +75d 36m 23.6s) | C | 60 | 18.1 |\n 41482 | 2024-02-09 17:50:11 | MASTER-Tavrida | (15h 46m 58.94s , +71d 12m 16.6s) | C | 60 | 17.9 |\n 41765 | 2024-02-09 17:54:55 | MASTER-Tavrida | (15h 10m 43.22s , +69d 58m 43.6s) | C | 60 | 17.0 |\n 41951 | 2024-02-09 17:58:00 | MASTER-Tavrida | (15h 46m 43.44s , +66d 10m 09.0s) | C | 60 | 17.8 |\n 42217 | 2024-02-09 18:02:26 | MASTER-Tavrida | (15h 50m 48.26s , +79d 29m 58.2s) | C | 60 | 18.1 |\n 42310 | 2024-02-09 18:03:59 | MASTER-Tavrida | (16h 23m 12.95s , +76d 52m 50.2s) | C | 60 | 17.9 |\n 42404 | 2024-02-09 18:05:33 | MASTER-Tavrida | (16h 01m 36.48s , +71d 51m 06.4s) | C | 60 | 18.0 |\n 42497 | 2024-02-09 18:07:06 | MASTER-Tavrida | (16h 12m 12.13s , +71d 11m 20.6s) | C | 60 | 18.1 |\n 42592 | 2024-02-09 18:08:41 | MASTER-Tavrida | (15h 49m 47.53s , +68d 03m 35.8s) | C | 60 | 17.9 |\n 42685 | 2024-02-09 18:10:15 | MASTER-Tavrida | (15h 58m 37.11s , +67d 21m 55.0s) | C | 60 | 18.1 |\n 42779 | 2024-02-09 18:11:48 | MASTER-Tavrida | (15h 54m 38.40s , +69d 56m 37.2s) | C | 60 | 18.1 |\n 42872 | 2024-02-09 18:13:21 | MASTER-Tavrida | (16h 04m 17.79s , +69d 17m 35.6s) | C | 60 | 17.8 |\n 42967 | 2024-02-09 18:14:57 | MASTER-Tavrida | (15h 10m 46.55s , +69d 59m 29.9s) | C | 60 | 18.3 |\n 43061 | 2024-02-09 18:16:30 | MASTER-Tavrida | (15h 20m 40.39s , +69d 19m 56.0s) | C | 60 | 18.4 |\n 43155 | 2024-02-09 18:18:04 | MASTER-Tavrida | (15h 13m 30.05s , +71d 54m 42.8s) | C | 60 | 18.2 |\n 43247 | 2024-02-09 18:19:36 | MASTER-Tavrida | (15h 24m 17.86s , +71d 14m 09.7s) | C | 60 | 18.5 |\n 43340 | 2024-02-09 18:21:10 | MASTER-Tavrida | (15h 46m 42.96s , +66d 10m 04.0s) | C | 60 | 18.1 |\n 43434 | 2024-02-09 18:22:43 | MASTER-Tavrida | (15h 54m 55.46s , +65d 28m 24.2s) | C | 60 | 17.9 |\n 43878 | 2024-02-09 18:30:08 | MASTER-Tavrida | (15h 26m 10.11s , +78d 49m 43.6s) | C | 60 | 18.8 |\n 43968 | 2024-02-09 18:31:38 | MASTER-Tavrida | (16h 33m 18.02s , +79d 28m 12.2s) | C | 60 | 18.8 |\n 44059 | 2024-02-09 18:33:09 | MASTER-Tavrida | (16h 23m 23.73s , +76d 52m 50.8s) | C | 60 | 18.4 |\n 44150 | 2024-02-09 18:34:39 | MASTER-Tavrida | (17h 20m 30.50s , +77d 28m 34.9s) | C | 60 | 18.4 |\n 44239 | 2024-02-09 18:36:09 | MASTER-Tavrida | (15h 47m 11.69s , +71d 11m 42.8s) | C | 60 | 18.4 |\n 44331 | 2024-02-09 18:37:40 | MASTER-Tavrida | (16h 26m 57.56s , +71d 51m 15.2s) | C | 60 | 18.4 |\nFilter C is a clear (unfiltred) band.\n\n\nThe observation and reduction will continue.\nThe message may be cited.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35711.",
"published": "2024-02-09T18:46:04.199806Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-09T18:46:04.199824Z",
"modified": "2024-02-09T18:46:04.208799Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6008,
"topic": "gcn.circular",
"uuid": "b95ed809-4ad6-4406-a220-4ae421fbbedf",
"title": "GRB 240209A: GOTO optical counterpart candidate",
"submitter": "Hop gcn.circular",
"authors": "Sergey Belkin at Monash University <sergey.belkin@monash.edu>",
"data": {
"date": "24/02/12 11:09:24 GMT",
"from": "Sergey Belkin at Monash University <sergey.belkin@monash.edu>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35715"
},
"title": "GCN CIRCULAR",
"number": "35715",
"subject": "GRB 240209A: GOTO optical counterpart candidate"
},
"message_text": "S. Belkin, M. Kennedy, B. P. Gompertz, K. Ackley, R. Starling, T. Killestein, M. J. Dyer, J. Lyman, K. Ulaczyk, F. Jimenez-Ibarra, A. Kumar, D. O'Neill, D. Steeghs, D. K. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, K. Noysena, R. Kotak, R. P. Breton, L. K. Nuttall, E. Pall'e and D. Pollacco report on behalf of the GOTO collaboration:\n\nWe report on observations with the Gravitational-wave Optical Transient Observer (GOTO; Steeghs et al. 2022) in response to GRB 240209A (Fermi GBM team, GCN 35712). Targeted observations were performed by GOTO-North between 05:27:38 on 2024-02-11 (starting 47 hrs after trigger) and 03:58:21 on 2024-02-12. Each observation consisted of 4x90s exposures in the GOTO L-band (400-700 nm).\n\nImages were processed immediately after acquisition using the GOTO pipeline. Difference imaging was performed using recent survey observations of the same pointings. Source candidates were initially filtered using a classifier (Killestein et al. 2021) and cross-matched against a variety of contextual and minor planet catalogues. Human vetting was carried out in real time on any candidates that passed the above checks.\n\nWe identify 1 candidate optical counterpart (GOTO24pw/AT2024cew) within the GBM 90% localisation region. We find no evidence of this source prior to the GRB trigger time in previous GOTO observations, the ZTF observations provided by the Lasair broker (Smith et al. 2019), or the ATLAS forced photometry server (Shingles et al. 2021). The most recent non-detection was taken by ATLAS on 2024-02-01.\n\nName | RA(J2000) | Dec(J2000) | Filter | t - trig(days) | Mag(AB)\nGOTO24pw | 17:01:05.29 | +68:43:46.31 | L | 1.96 | 19.64 +/- 0.14\n\nThe source is seen to decay as a power-law with an index of t^-1.80+/-0.16 across 3 epochs of observations. The most recent detection magnitude was L = 20.45 +/- 0.19 at 2.90 days after trigger.\n\nMagnitudes were calibrated using ATLAS-REFCAT2 (Tonry et al. 2018) and are not corrected for Galactic extinction.\n\nWe note the presence of the GLADE+ (Dalya et al. 2022) catalogued galaxy HyperLEDA 2722973 (z=0.1629+/-0.0150) approximately 7.3\" away. At this redshift the sky-projected offset of the transient from this galaxy is 20.58 kpc. This transient is spatially coincident with the cluster ZwCl 8111.\n\nObservations are ongoing.\n\nGOTO (https://goto-observatory.org) is a network of telescopes that is principally funded by the STFC and operated at the Roque de los Muchachos Observatory on La Palma, Spain, and Siding Spring Observatory in NSW, Australia, on behalf of a consortium including the University of Warwick, Monash University, Armagh Observatory & Planetarium, the University of Leicester, the University of Sheffield, the National Astronomical Research Institute of Thailand (NARIT), the University of Turku, the University of Portsmouth, the University of Manchester and the Instituto de Astrofisica de Canarias (IAC).\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35715.",
"published": "2024-02-12T11:09:45.051557Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-12T11:09:45.051578Z",
"modified": "2024-02-12T11:09:45.070538Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6018,
"topic": "gcn.circular",
"uuid": "2cb9ee3a-7a6d-4df6-a0eb-c515098634f4",
"title": "GRB240209A: OHP/T193 detection of the GOTO afterglow candidate AT2024cew / GOTO24pw",
"submitter": "Hop gcn.circular",
"authors": "Damien Turpin at CEA-Saclay <dturpin-astro@hotmail.com>",
"data": {
"date": "24/02/14 17:57:42 GMT",
"from": "Damien Turpin at CEA-Saclay <dturpin-astro@hotmail.com>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35725"
},
"title": "GCN CIRCULAR",
"number": "35725",
"subject": "GRB240209A: OHP/T193 detection of the GOTO afterglow candidate AT2024cew / GOTO24pw"
},
"message_text": "D. Turpin (CEA Paris-Saclay), C. Adami (LAM), A. de Ugarte Postigo (CNRS/OCA & LAM), E. Le Floc'h, D. Götz, F. Schüssler (CEA Paris-Saclay), B. Schneider (MIT), S. Basa (Pytheas/OHP/LAM), J. T. Palmerio, A. Saccardi, S. D. Vergani (GEPI, Obs. de Paris), report on behalf of a larger collaboration:\n\nWe observed the optical afterglow candidate of GRB 240209A (Fermi GBM team, GCN 35343) reported by the GOTO team (Belkin et al. GCN 35715) and also followed-up by the NOT and Wendelstein telescopes (de Ugarte Postigo et al. GCN 35716, Busmann et al. GCN 25724) using the T193cm telescope at Observatoire de Haute-Provence (France) equipped with the MISTRAL instrument. We took two series of r-band and g-band images (3x10min for each band) starting at 2024-02-14 04:00:34 UT. In both single and combined frames we detect the optical source at a high S/N. We performed forced photometry at the position of the source both on the science and difference image (we used PanSTARRS template images to make the subtraction) as the close HyperLEDA 2722973 galaxy might affect our measure. We derived the following magnitudes :\n----------------------------------------------------------\nT-T0 (in days, midtime) | mag | filter | subtracted\n----------------------------------------------------------\n4.893 | 20.06 ± 0.03 mag (AB) | r' | y\n4.893 | 19.41 ± 0.02 mag (AB) | r' | n\n4.919 | 20.02 ± 0.01 mag (AB) | g' | y\n4.919 | 19.78 ± 0.01 mag (AB) | g' | n\n-----------------------------------------------\nThe photometric calibration was performed using nearby stars from the PanSTARRS catalog and magnitudes are not corrected for Galactic extinction and the uncertainties are statistical only.\nWe note that our residual image magnitudes suggest a fading behavior of the source with respect to the NOT and the Wendelstein r-band epochs while the forced photometry on science images is in very good agreement with them. Further investigations about the potential flux contamination due to the presence of the HyperLEDA 2722973 galaxy will be done.\n\nIn addition to our photometric observations, we also performed spectroscopic observations of the source and the HyperLEDA 2722973 galaxy with the blue mode of MISTRAL. A total exposure of 20 minutes was obtained.\nThe preliminary analysis of the spectrum of the source suggests a rather blue transient (in agreement with the g-r ~ -0.04 we measured from difference image analysis) but at odds with typical GRB afterglow red colors. Due to the low S/N of the spectrum, we did not identify clear spectral features to estimate a redshift.\nThe MISTRAL spectrum of the HyperLEDA 2722973 galaxy shows a clear absorption complex that could be identified with the 5175A/5269A lines. This would suggest a redshift of z~0.207, close to the photometric value of z=0.1629+/-0.0150.\n\nFurther observation will be taken on Saturday night at OHP (weather permitting) to better characterize the color evolution of this transient.\n\nWe acknowledge the excellent support from Observatoire de Haute-Provence, in particular Stéphane Favard for the MISTRAL observations and the SOPHIE observer Magali Deleuil.\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35725.",
"published": "2024-02-14T17:58:04.530005Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-14T17:58:04.530044Z",
"modified": "2024-02-14T17:58:04.540155Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6006,
"topic": "gcn.circular",
"uuid": "fd37e777-cb03-4512-a9ff-815f1605c407",
"title": "Konus-Wind detection of GRB 240205A (short)",
"submitter": "Hop gcn.circular",
"authors": "Dmitry Frederiks at Ioffe Institute <fred@mail.ioffe.ru>",
"data": {
"date": "24/02/11 15:33:36 GMT",
"from": "Dmitry Frederiks at Ioffe Institute <fred@mail.ioffe.ru>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35713"
},
"title": "GCN CIRCULAR",
"number": "35713",
"subject": "Konus-Wind detection of GRB 240205A (short)"
},
"message_text": "D. Frederiks, A.Lysenko, A. Ridnaia, D. Svinkin,\nA. Tsvetkova, M. Ulanov, and T. Cline,\non behalf of the Konus-Wind team, report:\n\nThe short-duration GRB 240205A\n(Fermi GBM Final Real-time Localization: GCN 35679;\nGlowbug gamma-ray detection: Cheung et al., GCN 35707;\nIPN triangulation: Svinkin et al., GCN 35710)\ntriggered Konus-Wind at T0s586.689 s UT (20:26:26.689).\n\nThe burst light curve shows a single pulse,\nwhich starts at ~T0-0.2 s and has a total duration of ~0.45 s.\nThe Konus-Wind light curve of this GRB is available at\nhttp://www.ioffe.ru/LEA/GRBs/GRB240205_T73586/\n\nAs observed by Konus-Wind, the burst\nhad a fluence of 5.45(-0.84,+0.89)x10^-7 erg/cm2,\nand a 16-ms peak flux, measured from T0-0.016 s,\nof 4.13(-0.92,+1.08)x10^-6 erg/cm2/s\n(both in the 20 keV - 10 MeV energy range).\n\nSince the brightest part of the burst emission\nwas detected before the trigger, the spectral analysis\nwas performed using the KW 3-channel light curve data.\n\nModelling the KW 3-channel time-integrated spectrum\n(measured from T0-0.192 s to T0+0.256 s)\nby a power law with exponential cutoff (CPL) model:\ndN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep),\nyields alpha = -0.10(-0.38,+0.48) and Ep = 241(-46,+52) keV.\n\nModelling the KW 3-channel spectrum near the peak count rate\n(measured from T0-0.064 s to T0) by the CPL model\nyields alpha = -0.30(-0.48,+0.64) and Ep = 317(-82,+136) keV.\n\nAll the quoted errors are at the 68% confidence level.\nAll the quoted values are preliminary.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35713.",
"published": "2024-02-11T15:33:52.040900Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-11T15:33:52.040922Z",
"modified": "2024-02-11T15:33:52.048481Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6007,
"topic": "gcn.circular",
"uuid": "6ac7931f-f46a-4aef-84e3-2adf3f374ae7",
"title": "Konus-Wind detection of GRB 240204A",
"submitter": "Hop gcn.circular",
"authors": "Dmitry Svinkin at Ioffe Institute <svinkin@mail.ioffe.ru>",
"data": {
"date": "24/02/11 19:46:09 GMT",
"from": "Dmitry Svinkin at Ioffe Institute <svinkin@mail.ioffe.ru>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35714"
},
"title": "GCN CIRCULAR",
"number": "35714",
"subject": "Konus-Wind detection of GRB 240204A"
},
"message_text": "D. Svinkin, D. Frederiks, M. Ulanov, A. Tsvetkova,\nA. Lysenko, A. Ridnaia, and T. Cline\non behalf of the Konus-Wind team, report:\n\nThe long-duration GRB 240204A\n(Fermi-GBM detection: The Fermi GBM team, GCN 35664;\nSwift-BAt detection: Cenko et al., GCN 35666;\nAstroSat-CZTI detection: Joshi et al., GCN 35692)\ntriggered Konus-Wind at T0T473.519 s UT (15:07:53.519).\n\nThe burst light curve shows a single pulse\nwhich starts at ~T0-4.5 s and has a total duration of ~21.5 s.\nThe emission is seen up to ~1 MeV.\n\nThe Konus-Wind light curve of this GRB is available at\nhttp://www.ioffe.ru/LEA/GRBs/GRB240204_T54473/\n\nAs observed by Konus-Wind, the burst\nhad a fluence of 1.37(-0.07,+0.07)x10^-5 erg/cm2,\nand a 64-ms peak flux, measured from T0+2.448 s,\nof 4.22(-1.15,+1.15)x10^-6 erg/cm2/s\n(both in the 20 keV - 10 MeV energy range).\n\nThe time-averaged spectrum of the burst\n(measured from T0 to T0+8.448 s)\nis best fit in the 20 keV - 10 MeV range\nby a power law with exponential cutoff model:\ndN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep)\nwith alpha = -1.29(-0.16,+0.17)\nand Ep = 81(-6,+6) keV (chi2 = 87/83 dof).\nFitting by a GRB (Band) model yields the same alpha and Ep,\nand an upper limit on the high energy photon index: beta < -2.9\n(chi2 = 86/82 dof).\n\nAll the quoted errors are at the 90% confidence level.\nAll the quoted values are preliminary.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35714.",
"published": "2024-02-11T19:46:24.996120Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-11T19:46:24.996138Z",
"modified": "2024-02-11T19:46:25.003593Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6009,
"topic": "gcn.circular",
"uuid": "182d7e85-6c10-4b84-918d-2ff87db3ecce",
"title": "GRB 240209A: NOT photometry of the AT2024cew / GOTO24pw counterpart candidate",
"submitter": "Hop gcn.circular",
"authors": "Antonio de Ugarte Postigo at OCA <deugarte@oca.eu>",
"data": {
"date": "24/02/13 17:19:17 GMT",
"from": "Antonio de Ugarte Postigo at OCA <deugarte@oca.eu>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35716"
},
"title": "GCN CIRCULAR",
"number": "35716",
"subject": "GRB 240209A: NOT photometry of the AT2024cew / GOTO24pw counterpart candidate"
},
"message_text": "A. de Ugarte Postigo (CNRS/OCA & LAM), D. B. Malesani (DAWN/NBI & Radboud Univ.), M. I. Andersen (NBI), J. Sollerman (SU) report:\n\nWe observed AT2024cew / GOTO24pw (Belkin et al. GCN 35715), the optical counterpart candidate of GRB 240209A (Fermi GBM team, GCN 35712), using AlFOSC imaging on the 2.5m Nordic Optical Telescope (NOT), at the Roque de los Muchachos Observatory (La Palma, Spain).\n\nThe observation consisted of 5x300 s using r-band filter, with a mean time 3.990 days after the burst. The image shows a strong detection of the proposed counterpart at a preliminary magnitude of r~19.80+/-0.05, as compared to PanSTARRS field stars.\n\nThis is brighter than the last reported GOTO magnitude observed a day before, corresponding to a behaviour unlike typical GRB afterglows. However, we do note that there is a difference in the filters that could account for some inconsistency in the magnitudes of the two instruments.\n\nIf the object is at the same redshift of the nearby galaxy (photo-z = 0.16), then its absolute magnitude would be M_V ~ -19.9. This would be similar to some luminous supernovae (f.ex. a SN Ia) close to peak light. However, the fast decay and subsequent re-brightening in a day-scale, would be peculiar for a SN near peak.\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35716.",
"published": "2024-02-13T17:19:39.851859Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-13T17:19:39.851892Z",
"modified": "2024-02-13T17:19:39.862067Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6019,
"topic": "gcn.circular",
"uuid": "173a45b3-fe7f-4d17-b619-622a24a0e4e9",
"title": "The AGILE satellite ceased operations and re-entered today into the atmosphere",
"submitter": "Hop gcn.circular",
"authors": "Carlotta Pittori at ASDC <carlotta.pittori@ssdc.asi.it>",
"data": {
"date": "24/02/14 21:09:48 GMT",
"from": "Carlotta Pittori at ASDC <carlotta.pittori@ssdc.asi.it>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35726"
},
"title": "GCN CIRCULAR",
"number": "35726",
"subject": "The AGILE satellite ceased operations and re-entered today into the atmosphere"
},
"message_text": "M. Tavani (INAF/IAPS, and Univ. Roma Tor Vergata), A. Addis (INAF/OAS-Bo), A. Argan (INAF/IAPS), L. A. Antonelli (INAF/OAR), N. Auricchio (INAF/OAS-Bo), G. Barbiellini (INFN Trieste), L. Baroncelli (INAF/OAS-Bo), M. Basset (ex-INFN Trieste), F. Boffelli (ex-INFN Pavia), A. Bulgarelli (INAF/OAS-Bo), P. Caraveo (INAF/IASF-Mi), M. Cardillo (INAF/IAPS), C. Casentini (INAF/IAPS and INFN Tor Vergata), L. Castaldini (INAF/OAS-Bo), P. W. Cattaneo (INFN Pavia), E. Cavazzuti (ASI), G. Ceccobelli (SSDC-TPZ), A. Chen (Wits University), A. Ciabattoni (INAF/OAS-Bo), V. Cocco (ex-INFN Tor Vergata), M. Conte (free lance), M. Cosmo (ASI), E. Costa (INAF/IAPS), F. Cutrona (Univ. Milano Bicocca), F. D'Amico (ASI), P. D'Angeli (SSDC-TPZ), E. Del Monte (INAF/IAPS), G. De Paris (ESA), G. Di Cocco (INAF/OAS-Bo), G. Di Persio (INAF/IAPS), A. Di Piano (INAF/OAS-Bo), I. Donnarumma (ASI), Y. Evangelista (INAF/IAPS), F. Fabri (SSDC-SERCO), G. Fanari (SSDC-SERCO), G. Fedel (ex-INFN Trieste), V. Fioretti (INAF/OAS-Bo), L. Foffano (INAF/IAPS), L. Foggetta (INFN LNF), M. Feroci (INAF/IAPS), T. Froysland (Univ. Tor Vergata), F. Fuschino (ex-INAF/OAS-Bo), M. Galli (ENEA), F. Gianotti (INAF/OAS-Bo), P. Giommi (ex-ASI and INAF-OAB), A. Giuliani (INAF/IASF-Mi), M. Giusti (ASI), A. Guerra (SSDC-TPZ), C. Labanti (INAF/OAS-Bo), I. Lapshov (INAF/IAPS), F. Lazzarotto (INAF/OAPD), P. Lipari (INFN and Univ. Roma Sapienza), F. Longo (Univ. Trieste and INFN Trieste), F. Lucarelli (SSDC and INAF/OAR), M. Marisaldi (University of Bergen), A. Mauri (ENEA), E. Menegoni (ASI), S. Mereghetti (INAF/IASF-Mi), E. Morelli (INAF/OAS), A. Morselli (INFN and Univ. Roma Tor Vergata), P. Munar (ex-INAF/IAPS), B. Nadalut (ex-INFN Trieste),\n\nD. Navarra (SSDC-SERCO), B. Negri (ASI), L. Pacciani (INAF/IAPS), G. Panebianco (INAF/OAS-Bo), F. Paoletti (ex-East Windsor RSD Hightstown and INAF/IAPS), N. Parmiggiani, (INAF/OAS-Bo), A. Pellizzoni (INAF/OA-Cagliari), F. Perotti (INAF/IASF-Mi), G. Piano (INAF/IAPS), P. Picozza (INFN and Univ. Roma Tor Vergata), M. Pilia (INAF/OA-Cagliari), C. Pittori (SSDC and INAF/OAR), G. Polenta (ASI), C. Pontoni (ex-INFN Trieste), B. Preger (ex ASDC-SSDC), M. Prest (Univ. dell'Insubria and INFN Milano Bicocca), R. Primavera (SSDC-TPZ), G. Pucella (ENEA), M. Rapisarda (ENEA Frascati), A. Rappoldi (INFN Pavia), M. Romani (ex- INAF/IAPS), E. Rossi (INAF/OAS-Bo), A. Rubini (INAF/IAPS), S. Sabatini (ex-INAF/IAPS), P. Santolamazza (ex ASDC-SSDC), P. Soffitta (INAF/IAPS), L. Salotti (ASI), E. Scalise (INAF/IAPS), L. Soli (TAS-I), E. Striani (ex-INAF/IAPS), P. Tempesta (TeleSpazio), E. Tommasi (ASI), A. Traci (INAF/OAS-Bo), M. Trifoglio (INAF/OAS-Bo), A. Trois (INAF/OA-Cagliari), A. Ursi (ASI and INAF/IAPS), G. Valentini (ASI), E. Vallazza (INFN Milano Bicocca), S. Vercellone (INAF/OA-Brera), F. Verrecchia (SSDC and INAF/OAR), V. Vittorini (INAF/IAPS), A. Zambra (free lance), and D. Zanello (INFN and Univ. Roma Sapienza) report:\n\n\nThe AGILE satellite, launched on April 23, 2007 and dedicated to X-ray and gamma-ray astrophysics ceased its scientific observations on January 18, 2024 in anticipation of its re-entry. The satellite re-entered into the atmosphere today as a consequence of natural decay of its low Earth orbit.\n\n\n\nDuring 17 years, AGILE contributed in fundamental ways to high-energy astrophysics, cosmic-ray physics, solar physics and to the study of terrestrial gamma-ray flashes. Its archives and catalogs are available to the community through the ASI SSDC.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35726.",
"published": "2024-02-14T21:10:03.175061Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-14T21:10:03.175094Z",
"modified": "2024-02-14T21:10:03.184898Z",
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"targets": []
},
{
"id": 6020,
"topic": "gcn.circular",
"uuid": "99d00a8a-525b-4158-8f67-b348b15837b5",
"title": "The AGILE satellite ceased operations and re-entered today into the atmosphere",
"submitter": "Hop gcn.circular",
"authors": "Carlotta Pittori at ASDC <carlotta.pittori@ssdc.asi.it>",
"data": {
"date": "24/02/14 21:09:52 GMT",
"from": "Carlotta Pittori at ASDC <carlotta.pittori@ssdc.asi.it>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35727"
},
"title": "GCN CIRCULAR",
"number": "35727",
"subject": "The AGILE satellite ceased operations and re-entered today into the atmosphere"
},
"message_text": "M. Tavani (INAF/IAPS, and Univ. Roma Tor Vergata), A. Addis (INAF/OAS-Bo), A. Argan (INAF/IAPS), L. A. Antonelli (INAF/OAR), N. Auricchio (INAF/OAS-Bo), G. Barbiellini (INFN Trieste), L. Baroncelli (INAF/OAS-Bo), M. Basset (ex-INFN Trieste), F. Boffelli (ex-INFN Pavia), A. Bulgarelli (INAF/OAS-Bo), P. Caraveo (INAF/IASF-Mi), M. Cardillo (INAF/IAPS), C. Casentini (INAF/IAPS and INFN Tor Vergata), L. Castaldini (INAF/OAS-Bo), P. W. Cattaneo (INFN Pavia), E. Cavazzuti (ASI), G. Ceccobelli (SSDC-TPZ), A. Chen (Wits University), A. Ciabattoni (INAF/OAS-Bo), V. Cocco (ex-INFN Tor Vergata), M. Conte (free lance), M. Cosmo (ASI), E. Costa (INAF/IAPS), F. Cutrona (Univ. Milano Bicocca), F. D'Amico (ASI), P. D'Angeli (SSDC-TPZ), E. Del Monte (INAF/IAPS), G. De Paris (ESA), G. Di Cocco (INAF/OAS-Bo), G. Di Persio (INAF/IAPS), A. Di Piano (INAF/OAS-Bo), I. Donnarumma (ASI), Y. Evangelista (INAF/IAPS), F. Fabri (SSDC-SERCO), G. Fanari (SSDC-SERCO), G. Fedel (ex-INFN Trieste), V. Fioretti (INAF/OAS-Bo), L. Foffano (INAF/IAPS), L. Foggetta (INFN LNF), M. Feroci (INAF/IAPS), T. Froysland (Univ. Tor Vergata), F. Fuschino (ex-INAF/OAS-Bo), M. Galli (ENEA), F. Gianotti (INAF/OAS-Bo), P. Giommi (ex-ASI and INAF-OAB), A. Giuliani (INAF/IASF-Mi), M. Giusti (ASI), A. Guerra (SSDC-TPZ), C. Labanti (INAF/OAS-Bo), I. Lapshov (INAF/IAPS), F. Lazzarotto (INAF/OAPD), P. Lipari (INFN and Univ. Roma Sapienza), F. Longo (Univ. Trieste and INFN Trieste), F. Lucarelli (SSDC and INAF/OAR), M. Marisaldi (University of Bergen), A. Mauri (ENEA), E. Menegoni (ASI), S. Mereghetti (INAF/IASF-Mi), E. Morelli (INAF/OAS), A. Morselli (INFN and Univ. Roma Tor Vergata), P. Munar (ex-INAF/IAPS), B. Nadalut (ex-INFN Trieste),\n\nD. Navarra (SSDC-SERCO), B. Negri (ASI), L. Pacciani (INAF/IAPS), G. Panebianco (INAF/OAS-Bo), F. Paoletti (ex-East Windsor RSD Hightstown and INAF/IAPS), N. Parmiggiani, (INAF/OAS-Bo), A. Pellizzoni (INAF/OA-Cagliari), F. Perotti (INAF/IASF-Mi), G. Piano (INAF/IAPS), P. Picozza (INFN and Univ. Roma Tor Vergata), M. Pilia (INAF/OA-Cagliari), C. Pittori (SSDC and INAF/OAR), G. Polenta (ASI), C. Pontoni (ex-INFN Trieste), B. Preger (ex ASDC-SSDC), M. Prest (Univ. dell'Insubria and INFN Milano Bicocca), R. Primavera (SSDC-TPZ), G. Pucella (ENEA), M. Rapisarda (ENEA Frascati), A. Rappoldi (INFN Pavia), M. Romani (ex- INAF/IAPS), E. Rossi (INAF/OAS-Bo), A. Rubini (INAF/IAPS), S. Sabatini (ex-INAF/IAPS), P. Santolamazza (ex ASDC-SSDC), P. Soffitta (INAF/IAPS), L. Salotti (ASI), E. Scalise (INAF/IAPS), L. Soli (TAS-I), E. Striani (ex-INAF/IAPS), P. Tempesta (TeleSpazio), E. Tommasi (ASI), A. Traci (INAF/OAS-Bo), M. Trifoglio (INAF/OAS-Bo), A. Trois (INAF/OA-Cagliari), A. Ursi (ASI and INAF/IAPS), G. Valentini (ASI), E. Vallazza (INFN Milano Bicocca), S. Vercellone (INAF/OA-Brera), F. Verrecchia (SSDC and INAF/OAR), V. Vittorini (INAF/IAPS), A. Zambra (free lance), and D. Zanello (INFN and Univ. Roma Sapienza) report:\n\n\nThe AGILE satellite, launched on April 23, 2007 and dedicated to X-ray and gamma-ray astrophysics ceased its scientific observations on January 18, 2024 in anticipation of its re-entry. The satellite re-entered into the atmosphere today as a consequence of natural decay of its low Earth orbit.\n\n\n\nDuring 17 years, AGILE contributed in fundamental ways to high-energy astrophysics, cosmic-ray physics, solar physics and to the study of terrestrial gamma-ray flashes. Its archives and catalogs are available to the community through the ASI SSDC.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35727.",
"published": "2024-02-14T21:10:04.197536Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-14T21:10:04.197560Z",
"modified": "2024-02-14T21:10:04.204139Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6016,
"topic": "gcn.circular",
"uuid": "be107fe5-f31d-4874-b89b-75338f5e9a71",
"title": "GRB 240128A: Further Swift-XRT observations",
"submitter": "Hop gcn.circular",
"authors": "Paolo D'Avanzo at INAF-OAB <pda.davanzo@gmail.com>",
"data": {
"date": "24/02/14 07:52:22 GMT",
"from": "Paolo D'Avanzo at INAF-OAB <pda.davanzo@gmail.com>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35723"
},
"title": "GCN CIRCULAR",
"number": "35723",
"subject": "GRB 240128A: Further Swift-XRT observations"
},
"message_text": "P. D'Avanzo (INAF-OAB), K.L. Page (U. Leicester) and P.A. Evans (U. Leicester) reports on behalf of the Swift-XRT team:\n\nSwift-XRT has performed further follow-up observations of the MAXI-detected burst GRB 240128A (Yamaoka et al., GCN Circ. 35646;\nYoshida et al., GCN Circ. 35647; Dafcikova et al., GCN Circ. 35649; Cheung et al., GCN Circ. 35651). The data were collected between T0+553.6 ks and T0+1237.1 ks, and are entirely in Photon Counting (PC) mode for a total exposure time of 8.0 ks.\n\nThe uncatalogued X-ray source reported by Perri et al. (\"Source 1\"; GCN Circ. 35650), is still detected at an average count rate of\n~ 4e-2 ct/s and shows no definitive signs of fading. Therefore, we conclude that it is likely a field source unrelated with the GRB.\n\nThe results of the XRT-team automatic analysis of the XRT observations for this GRB, including a position-specific upper limit calculator,\nare available at https://www.swift.ac.uk/xrt_products/TILED_GRB00120 <https://www.swift.ac.uk/xrt_products/TILED_GRB00120>.\n\nThis circular is an official product of the Swift-XRT team.\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35723.",
"published": "2024-02-14T07:52:35.081438Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-14T07:52:35.081457Z",
"modified": "2024-02-14T07:52:35.093724Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6017,
"topic": "gcn.circular",
"uuid": "5eabb972-e62d-4a00-904d-5faf837d6345",
"title": "GRB 240209A: Wendelstein Optical Observations",
"submitter": "Hop gcn.circular",
"authors": "Malte Busmann at Ludwig-Maximilians-Universität München <m.busmann@physik.lmu.de>",
"data": {
"date": "24/02/14 10:42:16 GMT",
"from": "Malte Busmann at Ludwig-Maximilians-Universität München <m.busmann@physik.lmu.de>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35724"
},
"title": "GCN CIRCULAR",
"number": "35724",
"subject": "GRB 240209A: Wendelstein Optical Observations"
},
"message_text": "Malte Busmann (LMU), Daniel Gruen (LMU), Brendan OâConnor (CMU), Antonella Palmese (CMU), Lei Hu (CMU), Arno Riffeser (LMU/MPE) report:\n\nWe observed the position of the optical afterglow candidate (AT2024cew / GOTO24pw; Belkin et al. GCN 35715; de Ugarte Postigo et al. GCN 35716) for GRB 240209A (Fermi GBM team, GCN 35712) with the 2.1 m Fraunhofer telescope at Wendelstein Observatory, Germany. Observations were obtained using the 3kk imager in the r, i, and J bands simultaneously, starting at 2024-02-13 at 17:42 UT, and again in the g, i and J bands, starting at 04:46 UT.\n\nAt the position of the transient (Belkin et al. GCN 35715), we clearly detect the source in g-band, r-band and i-band in the individual epochs. We measure a brightness of r~19.5+/-0.1 AB mag calibrated to the PS1 catalog. We marginally detect it in J-band co-adding both epochs, at J~20.2+/-0.4 calibrated to the 2MASS catalog. Compared to previous NOT r-band photometry (de Ugarte Postigo et al. GCN 35716) this represents an increase in brightness, further suggesting that this transient is unlikely to be associated with the GRB, as does the blue color r-i~0.3 mag. \n\nFurther observations to uncover the nature of the transient are encouraged. \n\nWe thank the staff of the Wendelstein Observatory for obtaining these observations.\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35724.",
"published": "2024-02-14T10:42:27.938068Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-14T10:42:27.938087Z",
"modified": "2024-02-14T10:42:27.948680Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6599,
"topic": "gcn.circular",
"uuid": "a5b3da53-9c47-405f-9fbf-61a571802f75",
"title": "GRB 240415B: Swift ToO observations",
"submitter": "Hop gcn.circular",
"authors": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
"data": {
"date": "24/04/15 23:25:14 GMT",
"from": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/36127"
},
"title": "GCN CIRCULAR",
"number": "36127",
"subject": "GRB 240415B: Swift ToO observations"
},
"message_text": "P. A. Evans (U. Leicester) reports on behalf of the Swift team:\n\nSwift has initiated a ToO observation of the Swift/BAT GRB 240415B.\nAutomated analysis of the XRT data will be presented online at\nhttps://www.swift.ac.uk/ToO_GRBs/00021683\n\nAny uncatalogued X-ray sources detected in this analysis will be\nreported on this website and via GCN COUNTERPART notices. These are\nnot necessarily related to the Swift/BAT event. Any X-ray source\nconsidered to be a probable afterglow candidate will be reported via a\nGCN Circular after manual consideration.\n\nDetails of the XRT automated analysis methods are detailed in Evans et\nal. (2007, A&A, 469, 379; 2009, MNRAS, 397, 1177 and 2014, ApJS, 210, 8).\n\nThis circular is an official product of the Swift-XRT team.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/36127.",
"published": "2024-04-15T23:25:29.533131Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-04-15T23:25:29.533145Z",
"modified": "2024-04-15T23:25:29.541272Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6600,
"topic": "gcn.circular",
"uuid": "944694aa-b6f6-4461-9a9d-b84ee639192a",
"title": "GRB 240415A: Enhanced Swift-XRT position",
"submitter": "Hop gcn.circular",
"authors": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
"data": {
"date": "24/04/16 00:23:15 GMT",
"from": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/36128"
},
"title": "GCN CIRCULAR",
"number": "36128",
"subject": "GRB 240415A: Enhanced Swift-XRT position"
},
"message_text": "A.P. Beardmore, P.A. Evans, M.R. Goad and J.P. Osborne (U. Leicester)\nreport on behalf of the Swift-XRT team.\n\nUsing 822 s of XRT Photon Counting mode data and 3 UVOT\nimages for GRB 240415A, we find an astrometrically corrected X-ray\nposition (using the XRT-UVOT alignment and matching UVOT field sources\nto the USNO-B1 catalogue): RA, Dec = 129.18882, +73.14634 which is equivalent\nto:\n\nRA (J2000): 08h 36m 45.32s\nDec (J2000): +73d 08' 46.8\"\n\nwith an uncertainty of 2.8 arcsec (radius, 90% confidence).\n\nThis position may be improved as more data are received. The latest\nposition can be viewed at http://www.swift.ac.uk/xrt_positions. Position\nenhancement is described by Goad et al. (2007, A&A, 476, 1401) and Evans\net al. (2009, MNRAS, 397, 1177).\n\nThis circular was automatically generated, and is an official product of the\nSwift-XRT team.\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/36128.",
"published": "2024-04-16T00:23:32.776877Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-04-16T00:23:32.776891Z",
"modified": "2024-04-16T00:23:32.785236Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6022,
"topic": "gcn.circular",
"uuid": "4c4fbe79-af49-4690-b91e-090ceb25ca27",
"title": "GRB 240209A: Fermi GBM observation",
"submitter": "Hop gcn.circular",
"authors": "Christian Malacaria at ISSI <cmalacaria.astro@gmail.com>",
"data": {
"date": "24/02/14 21:34:38 GMT",
"from": "Christian Malacaria at ISSI <cmalacaria.astro@gmail.com>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35729"
},
"title": "GCN CIRCULAR",
"number": "35729",
"subject": "GRB 240209A: Fermi GBM observation"
},
"message_text": "C. Malacaria (ISSI) reports on behalf of the Fermi GBM Team:\n\n\"At 06:19:19.82 UT on 09 February 2024, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 240209A (GCN #35712).\nA GOTO optical counterpart candidate was found\nwithin the GBM 90% localisation region (GCN #35715), at a nominal\nangular separation from the GBM on-ground localisation of 2.4 degrees.\nAdditional observations of the GOTO candidate\nwere reported in GCN #35716, #35717, #35724, #35725.\n\nCareful inspection of the GBM trigger by the Fermi-GBM Team identified\na weak, soft GRB.\nThe GBM light curve consists of a single pulse with a duration (T90)\nof about 5.4 s (50-300 keV). The time-averaged spectrum from\nT0-4.0 s to T0+0.0 s is best fit by a power law function with\nindex of -1.82 +/- 0.07\n\nA power law function with an exponential high-energy cutoff with\nalpha = -1.4 +/- 0.2 and Epeak = 107 +/- 40 keV,\nfits the spectrum equally well.\n\nThe event fluence (10-1000 keV) in this time interval is\n(7.0 +/- 0.8)E-07 erg/cm^2. The 1.024-sec peak photon flux measured\nstarting from T0-1.98 s in the 10-1000 keV band\nis 3.0 +/- 0.3 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog.\"\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35729.",
"published": "2024-02-14T21:34:50.200796Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-14T21:34:50.200818Z",
"modified": "2024-02-14T21:34:50.211512Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6023,
"topic": "gcn.circular",
"uuid": "6ffa8fd5-c16b-4423-987a-61d1a7b9a30d",
"title": "GRB 240209A: Classification of AT2024cew/GOTO24pw as Type Ia-pec supernova",
"submitter": "Hop gcn.circular",
"authors": "kendall.ackley@warwick.ac.uk",
"data": {
"date": "24/02/14 22:00:51 GMT",
"from": "kendall.ackley@warwick.ac.uk",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/35730"
},
"title": "GCN CIRCULAR",
"number": "35730",
"subject": "GRB 240209A: Classification of AT2024cew/GOTO24pw as Type Ia-pec supernova"
},
"message_text": "K. Ackley; D. Steeghs; B. P. Gompertz; M. Magee; J. Lyman; R. Starling; M. J. Dyer; K. Ulaczyk; F. Jimenez-Ibarra; A. Kumar; D. O'Neill; D. K. Galloway; V. Dhillon; P. O'Brien; G. Ramsay; K. Noysena; R. Kotak; R. P. Breton; L. K. Nuttall; E. Pall'e and D. Pollacco report on behalf of the GOTO collaboration and the GOTO-FAST program:\n\nWe report on the classification of AT2024cew/GOTO24pw as part of the GOTO-FAST program (Godson et al., https://www.wis-tns.org/astronotes/astronote/2023-224) The source was first reported by GOTO (Belkin et al, GCN 35715) as a possible optical counterpart to GRB 240209A (Fermi GBM team, GCN 35712). It showed an initial decline across the GOTO epochs which was consistent with the ZTF photometry obtained through the Lasair broker (Smith et al. 2019).\n\nFollowing the reported brightening of the source (de Ugarte Postigo et al., GCN 35716) we obtained spectroscopic observations on the night of 2024-02-13 with the Isaac Newton Telescope (INT) using the IDS spectrograph with R150V grating (3950-7900 A, R~600). The INT spectrum is consistent with a Type Ia-pec SN at a redshift of z=0.15 (Godson et al. 2024, https://www.wis-tns.org/astronotes/astronote/2024-52) AT2024cew is therefore unrelated to GRB 240209A. \n\nAt this distance, the ongoing brightening measured by NOT (de Ugarte Postigo et al., GCN 35716), Wendelstein (Busmann et al., GCN 35724), and OHP (Turpin et al., GCN 35725) implies an absolute magnitude of -19.5. This is luminous for normal type Ia SNe and is consistent with peculiar SN Ia classification.\n\nBased on observations made with the Isaac Newton Telescope operated on the island of La Palma by the Isaac Newton Group of Telescopes in the Spanish Observatorio del Roque de los Muchachos of the Instituto de AstrofÃsica de Canarias.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/35730.",
"published": "2024-02-14T22:01:02.925502Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-02-14T22:01:02.925531Z",
"modified": "2024-02-14T22:01:02.932873Z",
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