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"title": "S230627bj - PRELIMINARY",
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"uuid": "f1565e25-fd6c-4b97-8071-6f13db4ccd94",
"title": "INTEGRAL follow-up of S230627bj",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230627bj at 2023-06-27T23:45:20.000\n\n\nSPI-ACS excesses:\nat T0+-12.16 FAP = 0.019\nat T0+0.09 FAP = 0.034\nat T0+27.64 FAP = 0.105\nat T0+-157.76 FAP = 0.339\nat T0+187.42 FAP = 0.43\nat T0+-8.13 FAP = 0.487\nat T0+-8.61 FAP = 0.607\nat T0+16.74 FAP = 0.759\n\n\n\n\nnext break in data in 22 hr: 2023-06-28T22:05:52, for 9.3 hr",
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"title": "S230628e - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
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{
"id": 706,
"topic": "hermes.message",
"uuid": "1b9858ad-eb89-49ed-a583-7b0b3a009d0f",
"title": "INTEGRAL follow-up of S230628e",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230628e at 2023-06-28T04:58:35.000\n\n\nSPI-ACS excesses:\nat T0+218.21 FAP = 0.262\nat T0+20.06 FAP = 0.263\nat T0+-214.71 FAP = 0.29\nat T0+269.24 FAP = 0.479\nat T0+7.49 FAP = 0.582\nat T0+-82.34 FAP = 0.872\nat T0+-115.61 FAP = 0.896\n\n\n\n\nnext break in data in 17 hr: 2023-06-28T22:05:52, for 9.3 hr",
"published": "2023-06-28T05:11:08.172550Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
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{
"id": 707,
"topic": "gcn.circular",
"uuid": "7606ce8a-9c7a-446f-ae90-33f21bcc1d59",
"title": "LIGO/Virgo/KAGRA S230627c: Additional observations from the Zwicky Transient Facility",
"submitter": "Hop gcn.circular",
"authors": "Tomas Fernando Ahumada Mena at Caltech <tahumada@umd.edu>",
"data": {
"date": "23/06/28 07:26:26 GMT",
"from": "Tomas Fernando Ahumada Mena at Caltech <tahumada@umd.edu>",
"title": "GCN CIRCULAR",
"number": "34100",
"subject": "LIGO/Virgo/KAGRA S230627c: Additional observations from the Zwicky Transient Facility"
},
"message_text": "Tomas Ahumada (CIT), Igor Andreoni (UMD), Akash Anumarlapudi (UWM), Viraj Karambelkar (CIT), Harsh Kumar (IITB), Theophile du Laz (CIT), Simeon Reusch (DESY), Anirudh Salgundi (IITB), Robert Stein (CIT), Vishwajeet Swain (IITB), Gaurav Waratkar (IITB), Shreya Anand (CIT), Eric Bellm (UW), Varun Bhalerao (IITB), Brad Cenko (UMD), Michael Coughlin (UMN), Brian Healy (UMN), David Kaplan (UWM), Mansi Kasliwal (CIT), Jannis Necker (DESY), D. Perley (LJMU), Avery Wold (IPAC) report on behalf of the ZTF and GROWTH collaborations:\n\nWe reobserved the localization region of the LVK trigger S230627c (GCN 34086) with the Palomar 48-inch telescope equipped with the 47 square-degree Zwicky Transient Facility (ZTF) camera (Graham et al., 2019; Bellm et al., 2019). We obtained images in the g- and r-bands of the Bilby map (GCN 34087) beginning at ~26.2 hours after the LVK trigger time, covering 78.6% (106.2 sq deg) of the probability enclosed in the localization region.\n\nWe queried the ZTF alert stream using AMPEL (Nordin et al. 2019) and Kowalski (Duev et al. 2019) through Fritz (Coughlin et al. 2023), and emgwcave (Karambelkar et al. in prep). We required at least 2 detections separated by at least 15 minutes to select against moving objects. Furthermore, we cross-match our candidates with the Minor Planet Center to flag known asteroids, reject stellar sources (Tachibana and Miller 2018), and apply machine learning algorithms (Mahabal et al. 2019). We require that no spatially coincident ZTF alerts were issued before the detection time of the LVK trigger. We also run forced photometry on ZTF images (Masci et al. 2019) and ATLAS images (Tonry et al. 2018, Smith et al. 2020) and require no 3- and 5-sigma detections before the LVK trigger respectively.\n\nOur observations yielded no new candidates. Furthermore, the candidates circulated on our initial GCN 34089 (Anumarlapudi et al.) show a flat evolution.\n\nZTF and GROWTH are worldwide collaborations comprising Caltech, USA; IPAC, USA, WIS, Israel; OKC, Sweden; JSI/UMd, USA; U Washington, USA; DESY, Germany; MOST, Taiwan; UW Milwaukee, USA; LANL USA; Tokyo Tech, Japan; IITB, India; IIA, India; LJMU, UK; TTU, USA; SDSU, USA and USyd, Australia. ZTF acknowledges the generous support of the NSF under AST MSIP Grant No 1440341. GROWTH acknowledges the generous support of the NSF under PIRE Grant No 1545949. Alert distribution service provided by DIRAC@UW (Patterson et al. 2019). Alert database searches are done by AMPEL (Nordin et al. 2019) and Kowalski (Duev et al. 2019). Fritz and SkyPortal acknowledge the generous support of The Gordon and Betty Moore Foundation, through the Data-Driven Investigator Program.\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg3OTM3MTkyLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.Rlca03vNrQy8tg6gOVznqS7ltzTGnPD1k7IFH3n7r48\n\n",
"published": "2023-06-28T07:26:38.015589Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-28T07:26:38.015610Z",
"modified": "2023-06-28T07:26:38.022701Z",
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{
"id": 708,
"topic": "gcn.circular",
"uuid": "521adc89-324d-413f-a2bd-e583e971bad2",
"title": "GRB 230628A: Fermi GBM Final Localization",
"submitter": "Hop gcn.circular",
"authors": "Andreas von Kienlin at MPE <azk@mpe.mpg.de>",
"data": {
"date": "23/06/28 11:26:43 GMT",
"from": "Andreas von Kienlin at MPE <azk@mpe.mpg.de>",
"title": "GCN CIRCULAR",
"number": "34101",
"subject": "GRB 230628A: Fermi GBM Final Localization"
},
"message_text": "The Fermi GBM team reports the detection of a likely SHORT GRB\n\n\"At 05:35:36.16 UT on 28 June 2023, the Fermi Gamma-ray Burst Monitor (GBM)\ntriggered and located GRB 230628A (trigger 709623341/230628233).\n\nThe on-ground calculated location, using the Fermi GBM trigger data,\nis RA = 139.19, Dec = -11.54 (J2000 degrees, equivalent to J2000 9h 16m, -11d 32'),\nwith a statistical uncertainty of 16.84 degrees.\n\nThe angle from the Fermi LAT boresight is 51 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230628233/quicklook/glg_skymap_all_bn230628233.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/2023/bn230628233/quicklook/glg_healpix_all_bn230628233.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230628233/quicklook/glg_lc_medres34_bn230628233.gif\"\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg3OTUxNjA4LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.owLoAgQ0Rqp8bUkHwSZG52IApN5lFfjF5E6lr6MisDI\n\n",
"published": "2023-06-28T11:26:53.342152Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-28T11:26:53.342171Z",
"modified": "2023-06-28T11:26:53.348703Z",
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{
"id": 709,
"topic": "igwn.gwalert",
"uuid": "c51435be-93b5-46c4-84c7-584af48f331d",
"title": "S230628ac - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
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"area_90": 4231.718559154704,
"duration": null,
"pipeline": "spiir",
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"time_created": "2023-06-28T14:03:17Z",
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},
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"published": "2023-06-28T14:03:18.338153Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-28T14:03:18.338180Z",
"modified": "2023-06-28T14:03:18.344272Z",
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{
"id": 710,
"topic": "igwn.gwalert",
"uuid": "1c126d8d-970e-4634-baa0-9bb6c02322c7",
"title": "S230628ac - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"event": {
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"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-06-28T14:14:53Z",
"superevent_id": "S230628ac",
"external_coinc": null
},
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"published": "2023-06-28T14:14:54.816174Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-28T14:14:54.816198Z",
"modified": "2023-06-28T14:14:54.821541Z",
"nonlocalizedevents": [],
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{
"id": 711,
"topic": "gcn.circular",
"uuid": "b0a7501a-3c03-417c-a95b-e36017a28efd",
"title": "ZTF23aaoohpy /AT2023lcr: TNG NIR detection",
"submitter": "Hop gcn.circular",
"authors": "Paolo D'Avanzo at INAF-OAB <pda.davanzo@gmail.com>",
"data": {
"date": "23/06/28 14:15:11 GMT",
"from": "Paolo D'Avanzo at INAF-OAB <pda.davanzo@gmail.com>",
"title": "GCN CIRCULAR",
"number": "34102",
"subject": "ZTF23aaoohpy /AT2023lcr: TNG NIR detection"
},
"message_text": "R. Brivio, M. Ferro, P. DâAvanzo (INAF-OAB), D. B. Malesani (U. Radboud and DAWN/NBI), A. Melandri (INAF-OAB, INAF-OAR), \nC. Padilla-Torres, A. Harutyunyan (INAF-TNG) on behalf of the CIBO collaboration report:\n\nWe observed the field of ZTF23aaoohpy/AT2023lcr (Swain et al., GCN 34022) with the Italian 3.6m TNG telescope equipped with \nthe near-infrared camera NICS. A series of images were obtained with the J and K filters on 2023-06-22 from 03:10:54 UT to 04:32:57 UT \n(i.e. at a mid time of about 60117.16 MJD).\n\nAt the position of the previously reported optical transient (e.g., Swain et al., GCN 34022, Gompertz et al., GCN 34023, Kumar et al., \nGCN 34025, Adami et al., GCN 34030, Perley et al., GCN 34031, Jian et al., GCN 34040) we clearly detect a source in both J and K filters.\n\nFrom preliminary photometry we derive K ~ 18.8 mag (Vega; calibrated against the 2MASS catalogue), not corrected for Galactic extinction.\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg3OTYxNzE3LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.BFcfoIE2sav-GzOoVX9LN46GDMyG9XktCrxNepZwto0\n\n",
"published": "2023-06-28T14:15:23.875368Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-28T14:15:23.875389Z",
"modified": "2023-06-28T14:15:23.879797Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 712,
"topic": "hermes.message",
"uuid": "1a181b58-c09f-4cfb-a67d-888a4ac3a2d0",
"title": "INTEGRAL follow-up of S230628ac",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230628ac at 2023-06-28T14:02:52.000\n\n\nSPI-ACS excesses:\nat T0+-31.52 FAP = 0.142\nat T0+56.88 FAP = 0.419\nat T0+-16.32 FAP = 0.478\nat T0+-23.49 FAP = 0.698\nat T0+246.56 FAP = 0.715\nat T0+268.66 FAP = 0.808\n\n\n\n\nnext break in data in 8.1 hr: 2023-06-28T22:05:52, for 9.3 hr",
"published": "2023-06-28T14:15:31.897870Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-06-28T14:15:31.897890Z",
"modified": "2023-06-28T14:15:31.902614Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 713,
"topic": "gcn.circular",
"uuid": "89106aae-4f70-4126-9fd8-337768e1ea82",
"title": "LIGO/Virgo/KAGRA S230516az: GOTO candidate counterpart GOTO23hu ruled out by Zwicky Transient Facility observations",
"submitter": "Hop gcn.circular",
"authors": "Simeon Reusch at DESY <simeon.reusch@desy.de>",
"data": {
"date": "23/06/28 16:28:39 GMT",
"from": "Simeon Reusch at DESY <simeon.reusch@desy.de>",
"title": "GCN CIRCULAR",
"number": "34103",
"subject": "LIGO/Virgo/KAGRA S230516az: GOTO candidate counterpart GOTO23hu ruled out by Zwicky Transient Facility observations"
},
"message_text": "Simeon Reusch (DESY), Tomas Ahumada (CIT), Anirudh Salgundi (IITB), Gokul Srinivasaragavan (UMD), Michael Coughlin (UMN), Vishwajeet Swain (IITB), Theophile du Laz (CIT), Jacob Wise (LJMU), Shreya Anand (CIT), Igor Andreoni (UMD), Eric Bellm (UW), Varun Bhalerao (IITB), S. Bradley Cenko (NASA/GSFC), Brian Healy (UMN), Mansi Kasliwal (CIT), Viraj Karambelkar (CIT), D. Kaplan (UWM), Harsh Kumar (IITB), Jannis Necker (DESY), Daniel Perley (LJMU), Robert Stein (CIT), Avery Wold (CIT/IPAC) report on behalf of the ZTF and GROWTH collaborations:\n\nWe observed parts of the localization region of LVK trigger S230516az as part of routine Zwicky Transient Facility (ZTF; Graham et al., 2019; Bellm et al., 2019) survey operations prior to and after merger time.\n\nFollowing the GOTO GCN notice (Gompertz et al., 33979), we obtained forced photometry of GOTO23hu and detected the transient in the i-band with 20.14 mag (AB) at 2023-06-15 04:37:55 UT, roughly 13 hours prior to merger time. Furthermore, the transient has since then continued to brighten in the i- and g-band, rising 1.4 mag in the g-band within 4 days.\n\nWe thereby rule out GOTO23hu as potential counterpart to S230516az.\n\nZTF and GROWTH are worldwide collaborations comprising Caltech, USA; IPAC, USA, WIS, Israel; OKC, Sweden; JSI/UMd, USA; U Washington, USA; DESY, Germany; MOST, Taiwan; UW Milwaukee, USA; LANL USA; Tokyo Tech, Japan; IITB, India; IIA, India; LJMU, UK; TTU, USA; SDSU, USA and USyd, Australia. ZTF acknowledges the generous support of the NSF under AST MSIP Grant No 1440341. GROWTH acknowledges generous support of the NSF under PIRE Grant No 1545949. Alert distribution service provided by DIRAC@UW (Patterson et al. 2019). Alert database searches are done by AMPEL (Nordin et al. 2019) and Kowalski (Duev et al. 2019).\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg3OTY5NzI1LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.zvcjMOp5KNeMR-Dt9V4uo1h_BL5xnkvy2dAk2QdYP0w\n\n",
"published": "2023-06-28T16:28:54.702530Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-28T16:28:54.702550Z",
"modified": "2023-06-28T16:28:54.709828Z",
"nonlocalizedevents": [
{
"event_id": "S230516a"
}
],
"targets": []
},
{
"id": 714,
"topic": "gcn.circular",
"uuid": "d877db7b-8da8-4581-91e9-754369542951",
"title": "GRB 230623B: CALET Gamma-Ray Burst Monitor detection",
"submitter": "Hop gcn.circular",
"authors": "Yuta Kawakubo at Louisiana State University <kawakubo1@lsu.edu>",
"data": {
"date": "23/06/28 16:39:07 GMT",
"from": "Yuta Kawakubo at Louisiana State University <kawakubo1@lsu.edu>",
"title": "GCN CIRCULAR",
"number": "34104",
"subject": "GRB 230623B: CALET Gamma-Ray Burst Monitor detection"
},
"message_text": "S. Nakahira (JAXA), A. Yoshida, T. Sakamoto, S. Sugita (AGU),\nY. Kawakubo (LSU), K. Yamaoka (Nagoya U), Y. Asaoka (ICRR),\nS. 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 230623B (GECAM trigger 195; Swift/BAT-GUANO\ndetection: Ronchini et al.,GCN Circ. 34076) triggered the CALET\nGamma-ray Burst Monitor (CGBM) at 21:22:37.02 UTC on 23\nJune 2023\n(http://cgbm.calet.jp/cgbm_trigger/flight/1371590547/index.html).\nThe burst signal was seen by all CGBM detectors. No real-time\nCGBM GCN notice was distributed about this trigger because\nthe real-time communication from the ISS was off (loss of signal).\n\nThe burst light curve shows a multi-peaked structure that starts\nat T-3.2 sec, peaks at T+13.9 sec, and ends at T+20.4 sec.\nThe T90 and T50 durations measured by the SGM data are 21.4 +/- 1.5 sec\nand 13.4 +/- 0.6 sec (40-1000 keV), respectively.\n\nThe ground-processed light curve is available at\n\nhttp://cgbm.calet.jp/cgbm_trigger/ground/1371590547/\n\nThe CALET data used in this analysis are provided by\nthe Waseda CALET Operation Center located at Waseda University.\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg3OTcwMzUyLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.pfYqRlCEh3TAOKli1hnvPPYo1j6ZgCdn63O3de50iFk\n\n",
"published": "2023-06-28T16:39:18.083051Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-28T16:39:18.083070Z",
"modified": "2023-06-28T16:39:18.088895Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 715,
"topic": "gcn.circular",
"uuid": "be932acf-e3e0-400c-888d-da6edbe7d401",
"title": "GRB 230628B: Swift/BAT-GUANO detection of a burst outside the coded FOV",
"submitter": "Hop gcn.circular",
"authors": "Jimmy DeLaunay at University of Alabama <delauj2@gmail.com>",
"data": {
"date": "23/06/28 16:42:07 GMT",
"from": "Jimmy DeLaunay at University of Alabama <delauj2@gmail.com>",
"title": "GCN CIRCULAR",
"number": "34105",
"subject": "GRB 230628B: Swift/BAT-GUANO detection of a burst outside the coded FOV"
},
"message_text": "James DeLaunay (U Alabama), Aaron Tohuvavohu (U Toronto), Gayathri Raman (PSU), Samuele Ronchini (PSU), Jamie A. Kennea (PSU), Tyler Parsotan (NASA GSFC) report:\n\nSwift/BAT did not localize GRB 230628B onboard (T0: 2023-06-28T01:35:56.03 UTC, INTEGRAL trig 10298, Fermi trig. 709608965).\n\nThe INTEGRAL and Fermi notices, 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 14.54 in a 16.384 s analysis time bin, starting at T0.\n\nNITRATES results are consistent with a burst coming from outside the FOV, with DeltaLLHOut of 0.78.\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\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg3OTcwNTMwLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.0FyjFPas8oJ7O9nou6d88JfYyXJDLcwj6CSa56yZxe8\n\n",
"published": "2023-06-28T16:42:15.531662Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-28T16:42:15.531682Z",
"modified": "2023-06-28T16:42:15.536773Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 716,
"topic": "igwn.gwalert",
"uuid": "6830aa8f-63ad-4b1d-9dbf-d8652e903c98",
"title": "S230628aj - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230628aj/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230628aj/view/"
},
"event": {
"far": 2.101472e-07,
"time": "2023-06-28T16:42:24.785Z",
"group": "CBC",
"search": "AllSky",
"area_50": 581.0010258974303,
"area_90": 1859.8747177879459,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.5405289520088914,
"HasMassGap": 0.01980838893847309,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "0027df0a333bd4acff14f175dc9be5ac",
"classification": {
"BBH": 0.6929456,
"BNS": 0.0,
"NSBH": 0.000869632,
"Terrestrial": 0.306184772
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-06-28T16:42:55Z",
"superevent_id": "S230628aj",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-28T16:42:56.623438Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-28T16:42:56.623463Z",
"modified": "2023-06-28T16:42:56.628190Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 717,
"topic": "igwn.gwalert",
"uuid": "d85ef430-4132-4832-b7fd-e441da7f2615",
"title": "S230628aj - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230628aj/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230628aj/view/"
},
"event": {
"far": 2.101472e-07,
"time": "2023-06-28T16:42:24.785Z",
"group": "CBC",
"search": "AllSky",
"area_50": 581.0010258974303,
"area_90": 1859.8747177879459,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.5405289520088914,
"HasMassGap": 0.01980838893847309,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "0027df0a333bd4acff14f175dc9be5ac",
"classification": {
"BBH": 0.6929456,
"BNS": 0.0,
"NSBH": 0.000869632,
"Terrestrial": 0.306184772
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-06-28T16:47:30Z",
"superevent_id": "S230628aj",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-28T16:47:31.224927Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-28T16:47:31.224962Z",
"modified": "2023-06-28T16:47:31.230766Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 718,
"topic": "hermes.message",
"uuid": "dc817e03-c893-42d7-ab13-7959aaa2c370",
"title": "INTEGRAL follow-up of S230628aj",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230628aj at 2023-06-28T16:42:24.000\n\n\nSPI-ACS excesses:\nat T0+-80.21 FAP = 0.056\nat T0+-60.39 FAP = 0.231\nat T0+25.59 FAP = 0.389\nat T0+42.51 FAP = 0.979\n\n\n\n\nnext break in data in 5.4 hr: 2023-06-28T22:05:52, for 9.3 hr",
"published": "2023-06-28T16:55:07.114439Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-06-28T16:55:07.114457Z",
"modified": "2023-06-28T16:55:07.119394Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 719,
"topic": "gcn.circular",
"uuid": "ae4c79e6-0aa1-4f94-a8ba-4e4d5e7afd5a",
"title": "GRB 230628C: 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": "23/06/28 17:47:08 GMT",
"from": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
"title": "GCN CIRCULAR",
"number": "34106",
"subject": "GRB 230628C: Fermi GBM Final Real-time Localization"
},
"message_text": "The Fermi GBM team reports the detection of a likely LONG GRB\n\nAt 17:36:34 UT on 28 Jun 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230628C (trigger 709666599.86266 / 230628734).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 301.0, Dec = 35.6 (J2000 degrees, equivalent to J2000 20h 03m, 35d 36'), with a statistical uncertainty of 3.3 degrees.\n\nThe angle from the Fermi LAT boresight is 18.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230628734/quicklook/glg_skymap_all_bn230628734.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/2023/bn230628734/quicklook/glg_healpix_all_bn230628734.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230628734/quicklook/glg_lc_medres34_bn230628734.gif\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg3OTc0NDMzLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.Eje6S4ZBHFznk0Dw1iJ2n6V8Q_xNDq0o-Wx8ksbrUDU\n\n",
"published": "2023-06-28T17:47:18.912460Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-28T17:47:18.912480Z",
"modified": "2023-06-28T17:47:18.918355Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 720,
"topic": "gcn.circular",
"uuid": "aae5007b-e77a-4db6-9bcc-9ad8aa35262e",
"title": "LIGO/Virgo/KAGRA low-significance gravitational wave candidate S230628aj: one counterpart neutrino candidate from IceCube neutrino searches",
"submitter": "Hop gcn.circular",
"authors": "acz2122@columbia.edu",
"data": {
"date": "23/06/28 18:26:22 GMT",
"from": "acz2122@columbia.edu",
"title": "GCN CIRCULAR",
"number": "34107",
"subject": "LIGO/Virgo/KAGRA low-significance gravitational wave candidate S230628aj: one counterpart neutrino candidate from IceCube neutrino searches"
},
"message_text": "The IceCube Collaboration (http://icecube.wisc.edu/) reports:\n\nA search for track-like muon neutrino events detected by IceCube consistent with the sky\nlocalization of the low-significance gravitational wave candidate S230628aj in a time range of 1000 seconds\ncentered on the alert event time (2023-06-28 16:34:04 UTC to 2023-06-28 16:50:44 UTC)\nhas been performed [1,2]. During this time period IceCube was collecting good quality data.\nOne hypothesis test was conducted for this low-significance gravitational wave event. The\nsearch uses a Bayesian approach to quantify the joint GW + neutrino event significance, which\nassumes a binary merger scenario and accounts for known astrophysical priors, such as GW source\ndistance, in the significance estimate [3].\n\nOne track-like event is found in spatial and temporal coincidence with the gravitational-wave\ncandidate S230628aj calculated from the map circulated by LVK as S230628aj-2-Preliminary. This\nrepresents an overall pre-trial p-value of 0.0080 for the Bayesian search. The most probable\nmulti-messenger source direction based on the neutrinos and GW skymap is RA 147.97, Dec 8.91 degrees.\n\nThe reported p-value here does not account for any trials correction (multiple hypotheses testing).\nThe false alarm rate of these coincidences can be obtained by multiplying the p-values with their\ncorresponding GW trigger rates. Further details are available at https://gcn.nasa.gov/missions/icecube.\n\nProperties of the coincident event(s) are shown below.\n\ndt(s)\tRA(deg)\t\tDec(deg)\tAngular uncertainty(deg) p-value(generic transient) p-value(Bayesian)\n-----------------------------------------------------------------------------------------------------\n-301.0 147.97 \t8.91 \t1.509 \tnull (not applicable) \t0.0086\n...\n\nwhere:\ndt = Time of track event minus time of GW trigger (sec)\nAngular uncertainty = Angular uncertainty of track event: the radius of a circle\n \trepresenting 90% CL containment by area.\np-value = the p-value for this specific track event from each search.\n\nThe IceCube Neutrino Observatory is a cubic-kilometer neutrino detector operating at the\ngeographic South Pole, Antarctica. The IceCube realtime alert point of contact can be\nreached at roc@icecube.wisc.edu\n\n\n[1] M. G. Aartsen et al 2020 ApJL 898 L10\n[2] Abbasi et al. Astrophys.J. 944 (2023) 1, 80\n[3] I. Bartos et al. 2019 Phys. Rev. D 100, 083017\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg3OTc2Nzg4LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.H1Z5oJEWu2Lj_OG2gpvp75gFpGZ6ZMgdUgV1t0FmJHw\n\n",
"published": "2023-06-28T18:26:33.410517Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-28T18:26:33.410536Z",
"modified": "2023-06-28T18:26:33.418056Z",
"nonlocalizedevents": [
{
"event_id": "S230628a"
}
],
"targets": []
},
{
"id": 721,
"topic": "gcn.circular",
"uuid": "d9f8ee68-29e2-4af3-9b04-5df2322c7a46",
"title": "GRB 230628D: 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": "23/06/28 20:32:52 GMT",
"from": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
"title": "GCN CIRCULAR",
"number": "34108",
"subject": "GRB 230628D: Fermi GBM Final Real-time Localization"
},
"message_text": "The Fermi GBM team reports the detection of a likely LONG GRB\n\nAt 20:22:31 UT on 28 Jun 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230628D (trigger 709676556.5632 / 230628849).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 175.0, Dec = 12.3 (J2000 degrees, equivalent to J2000 11h 39m, 12d 18'), with a statistical uncertainty of 1.6 degrees.\n\nThe angle from the Fermi LAT boresight is 25.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230628849/quicklook/glg_skymap_all_bn230628849.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/2023/bn230628849/quicklook/glg_healpix_all_bn230628849.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230628849/quicklook/glg_lc_medres34_bn230628849.gif\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg3OTg0Mzc3LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.830T5BamOjK7NuOOAJhoaDKwt_cUtc-2ScE7tBTv-ds\n\n",
"published": "2023-06-28T20:33:02.978439Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-28T20:33:02.978457Z",
"modified": "2023-06-28T20:33:02.986301Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 722,
"topic": "gcn.circular",
"uuid": "32ee2871-e1fd-48af-9616-c63ec0311f61",
"title": "GRB 230628D: BALROG localization (Fermi Trigger 709676556 / GRB 230628849)",
"submitter": "Hop gcn.circular",
"authors": "Jochen Greiner at MPE <jcgrog@mpe.mpg.de>",
"data": {
"date": "23/06/28 20:54:04 GMT",
"from": "Jochen Greiner at MPE <jcgrog@mpe.mpg.de>",
"title": "GCN CIRCULAR",
"number": "34109",
"subject": "GRB 230628D: BALROG localization (Fermi Trigger 709676556 / GRB 230628849)"
},
"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\n709676556 at 20:22:31 on 28 June 2023 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 (1 sigma statistical errors) is:\nRA(2000.0) = 177.0+/-1.2 deg\nDecl.(2000.0) = 3.0+/-1.1 deg\nWe estimate an additional systematic error of 2 deg.\n\nFurther details are available at:\nhttps://grb.mpe.mpg.de/grb/GRB230628849/\n\nThe Healpix map can be downloaded from:\nhttps://grb.mpe.mpg.de/grb/GRB230628849/healpix\n\nThe location parameters are available as JSON at:\nhttps://grb.mpe.mpg.de/grb/GRB230628849/json\n\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg3OTg1NjQ5LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.GFnJn_OmOIUOeu4yNj2LCumWzuGHPUg9rtx13pY6Goc\n\n",
"published": "2023-06-28T20:54:14.344918Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-28T20:54:14.344938Z",
"modified": "2023-06-28T20:54:14.351661Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 723,
"topic": "gcn.circular",
"uuid": "38d3cfb1-7d45-48aa-b068-552f41107a26",
"title": "GRB 230628E: Swift detection of a burst",
"submitter": "Hop gcn.circular",
"authors": "N. Klingler at NASA-GSFC/UMBC/CRESST II <noelklingler@gmail.com>",
"data": {
"date": "23/06/28 23:00:04 GMT",
"from": "N. Klingler at NASA-GSFC/UMBC/CRESST II <noelklingler@gmail.com>",
"title": "GCN CIRCULAR",
"number": "34110",
"subject": "GRB 230628E: Swift detection of a burst"
},
"message_text": "CRESSTII), C. Salvaggio (INAF-OAB), T. Sbarrato (INAF-OAB), M. H. Siegel (PSU) and M. A. Williams (PSU) report on behalf of the Neil Gehrels Swift Observatory Team:\n\nAt 22:26:10 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 230628E (trigger=1177054). Swift slewed immediately to the burst. The BAT on-board calculated location is \nRA, Dec 171.841, -11.447 which is \n RA(J2000) = 11h 27m 22s\n Dec(J2000) = -11d 26' 47\"\nwith an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a single peaked structure with a duration of about 5 sec. The peak count rate was ~600 counts/sec (15-350 keV), at ~0 sec after the trigger.\n\nThe XRT began observing the field at 22:29:48.3 UT, 217.7 seconds after the BAT trigger. Using promptly downlinked data we find a bright, uncatalogued X-ray source located at RA, Dec 171.8499, -11.4641 which is equivalent to:\n RA(J2000) = +11h 27m 23.77s \n Dec(J2000) = -11d 27' 50.2â\nwith an uncertainty of 1.9 arcseconds (radius, 90% containment). This position may be improved as more data are received; the latest position is available at https://www.swift.ac.uk/sper. No spectrum from the\npromptly downlinked event data is yet available to determine the column density.\n\nUVOT took a finding chart exposure of 150 seconds with the White filter starting 221 seconds after the BAT trigger. No credible afterglow candidate has been found in the initial data products. The 2.7'x2.7' sub-image covers none of the XRT error circle. The 8'x8' region for the list of sources generated on-board covers 100% of the XRT error circle. The list of sources is typically complete to about 18 mag. No correction has been made for the expected extinction corresponding to E(B-V) of 0.040.\n\nBurst Advocate for this burst is N. J. Klingler (noelklin AT umbc.edu) Please contact the BA by email if you require additional information regarding Swift followup of this burst. In extremely urgent cases, after trying the Burst Advocate, you can contact the Swift PI by phone (see Swift TOO web site for information: http://www.swift.psu.edu/)\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg3OTkzMjA5LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.bovQyNiBaDr3o1bCE4qt2OZfp0x5Y6z7seHoWaZpIQg\n\n",
"published": "2023-06-28T23:00:14.552592Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-28T23:00:14.552611Z",
"modified": "2023-06-28T23:00:14.561015Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 724,
"topic": "igwn.gwalert",
"uuid": "58e96ea7-616b-4da3-a177-e0d5e9fb7b36",
"title": "S230628ax - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230628ax/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230628ax/view/"
},
"event": {
"far": 1.816407809752951e-13,
"time": "2023-06-28T23:12:00.367Z",
"group": "CBC",
"search": "AllSky",
"area_50": 234.84485310064966,
"area_90": 788.0967328532859,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": true,
"skymap_hash": "4b8e1646185609f58fe78e63be7085d1",
"classification": {
"BBH": 0.9999987267269341,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 1.2732730658715496e-06
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-06-28T23:12:27Z",
"superevent_id": "S230628ax",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-28T23:12:29.100217Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-28T23:12:29.100242Z",
"modified": "2023-06-28T23:12:29.105584Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 725,
"topic": "igwn.gwalert",
"uuid": "ba687585-bdb6-4131-8c81-d0809247de54",
"title": "S230628ax - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230628ax/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S230628ax/view/"
},
"event": {
"far": 3.167545842243851e-10,
"time": "2023-06-28T23:12:00.373Z",
"group": "CBC",
"search": "AllSky",
"area_50": 183.2282939201629,
"area_90": 704.7968385660774,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": true,
"skymap_hash": "a91adfe7a76e4a5425c96b48e96ca2c9",
"classification": {
"BBH": 0.9999757910828331,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 2.4208917166923527e-05
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-06-28T23:17:08Z",
"superevent_id": "S230628ax",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-28T23:17:09.709707Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-28T23:17:09.709730Z",
"modified": "2023-06-28T23:17:09.714823Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 726,
"topic": "gcn.circular",
"uuid": "c6722e44-f5ab-4af5-ba17-099a989ef87a",
"title": "Swift GRB230628.93: 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": "23/06/28 23:52:49 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"title": "GCN CIRCULAR",
"number": "34111",
"subject": "Swift GRB230628.93: Global MASTER-Net observations report"
},
"message_text": "V. Lipunov, V.Kornilov, E.Gorbovskoy, K.Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, D. Vlasenko,\nG.Antipov, D.Zimnukhov, V.Senik, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D.Cheryasov, Ya.Kechin\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. Gres, N.M. Budnev\n(Irkutsk State University, API),\n\nL.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.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\nA. Gabovich, V.Yurkov\n(Blagoveschensk Educational State University)\n\n\nMASTER-OAFA robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Argentina (OAFA observatory of San Juan National University) was pointed to the Swift GRB230628.93 (trigger No 1177054,11h 27m 21.84s , -11d 26m 49.2s, R=0.05) errorbox 4426 sec after notice time and 4457 sec after trigger time at 2023-06-28 23:40:27 UT, with upper limit up to 18.1 mag. The observations began at zenith distance = 35 deg. The sun altitude is -24.6 deg.\n\nThe galactic latitude b = 46 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\"30049\n\nWe obtain a following upper limits.\n\nTmid-T0 | Site |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____|_______|______|________\n\n 4487 | MASTER-OAFA | C | 60 | 18.0 |\n 4579 | MASTER-OAFA | C | 60 | 18.1 |\n 4672 | MASTER-OAFA | C | 60 | 18.1 |\n 4764 | MASTER-OAFA | C | 60 | 18.0 |\nFilter C is a clear (unfiltred) band.\n\n\nThe observation and reduction will continue.\nThe message may be cited.\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg3OTk2Mzc0LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.0ycUovL0JfA4QWTu8EBelMn1nJEh_EksyVXDKKUQofo\n\n",
"published": "2023-06-28T23:52:59.467252Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-28T23:52:59.467270Z",
"modified": "2023-06-28T23:52:59.472692Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 727,
"topic": "gcn.circular",
"uuid": "9724717e-b56c-40b2-9bfd-e21ecc3c1e04",
"title": "GRB 230628E: LCOGT Optical Upper Limit",
"submitter": "Hop gcn.circular",
"authors": "Robert Strausbaugh at University of Minnesota <rstrausb@umn.edu>",
"data": {
"date": "23/06/29 00:32:59 GMT",
"from": "Robert Strausbaugh at University of Minnesota <rstrausb@umn.edu>",
"title": "GCN CIRCULAR",
"number": "34112",
"subject": "GRB 230628E: LCOGT Optical Upper Limit"
},
"message_text": "R. Strausbaugh (University of Minnesota), A. Cucchiara (NASA) report on behalf\nof a larger collaboration:\n\nWe observed the GRB 230628E (Klingler et al., GCN 34110) field with the LCOGT\n1-meter Sinistro instrument at the Cerro Tololo Interamerican Observatory,\nChile site, on June 28, from 23:08 to 23:40 UT (corresponding to 0.70 to\n1.23 hours from the GRB trigger time) with the SDSS r and i filters.\n\nWe performed a series of 3x300s exposures in each band. We do not detect a\nsource within the Swift-XRT error region (Klingler et al., GCN 34110) in\neither band.\n\nThe following upper limits are calculated using the PanSTARRS catalog as\nreference:\n\nr > 19.2\n\ni > 19.0\n\nThese magnitudes are not corrected for galactic extinction.\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg3OTk4Nzg1LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.kepCgl-_ZWy5JIZM1oRIkeR2dTgtPljep27d_VlrkGM\n\n",
"published": "2023-06-29T00:33:10.888722Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-29T00:33:10.888743Z",
"modified": "2023-06-29T00:33:10.893712Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 728,
"topic": "igwn.gwalert",
"uuid": "b6514f52-b68f-4830-994a-95072bcaea19",
"title": "S230628ax - INITIAL",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230628ax/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S230628ax/view/"
},
"event": {
"far": 3.167545842243851e-10,
"time": "2023-06-28T23:12:00.373Z",
"group": "CBC",
"search": "AllSky",
"area_50": 183.2282939201629,
"area_90": 704.7968385660774,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": true,
"skymap_hash": "a91adfe7a76e4a5425c96b48e96ca2c9",
"classification": {
"BBH": 0.9999757910828331,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 2.4208917166923527e-05
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "INITIAL",
"sequence_num": 3,
"time_created": "2023-06-29T00:47:07Z",
"superevent_id": "S230628ax",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-29T00:47:08.610691Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-29T00:47:08.610747Z",
"modified": "2023-06-29T00:47:08.616325Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 729,
"topic": "gcn.circular",
"uuid": "f1297f26-82a9-40af-bfaf-db342e20ac8d",
"title": "LIGO/Virgo/KAGRA S230628ax: Identification of a GW compact binary merger candidate",
"submitter": "Hop gcn.circular",
"authors": "David Hui at Chungnam National University <huichungyue@gmail.com>",
"data": {
"date": "23/06/29 00:59:04 GMT",
"from": "David Hui at Chungnam National University <huichungyue@gmail.com>",
"title": "GCN CIRCULAR",
"number": "34113",
"subject": "LIGO/Virgo/KAGRA S230628ax: Identification of a GW compact binary merger candidate"
},
"message_text": "The LIGO Scientific Collaboration, the Virgo Collaboration, and the\nKAGRA Collaboration report:\n\nWe identified the compact binary merger candidate S230628ax during\nreal-time processing of data from LIGO Hanford Observatory (H1) and\nLIGO Livingston Observatory (L1) at 2023-06-28 23:12:00.373 UTC (GPS\ntime: 1372029138.373). The candidate was found by the CWB [1], MBTA\n[2], GstLAL [3], PyCBC Live [4], and SPIIR [5] analysis pipelines.\n\nS230628ax is an event of interest because its false alarm rate, as\nestimated by the online analysis, is 3.2e-10 Hz, or about one in 1e2\nyears. The event's properties can be found at this URL:\n\nhttps://gracedb.ligo.org/superevents/S230628ax\n\nThe classification of the GW signal, in order of descending\nprobability, is BBH (>99%), Terrestrial (<1%), BNS (<1%), or NSBH\n(<1%).\n\nAssuming the candidate is astrophysical in origin, the probability\nthat the lighter compact object is consistent with a neutron star mass\n(HasNS) is <1%. [6] Using the masses and spins inferred from the\nsignal, the probability of matter outside the final compact object\n(HasRemnant) is <1%. [6] Both HasNS and HasRemnant consider the\nsupport of several neutron star equations of state. The probability\nthat either of the binary components lies between 3 and 5 solar masses\n(HasMassgap) is <1%.\n\nTwo sky maps are available at this time and can be retrieved from the\nGraceDB event page:\n * bayestar.multiorder.fits,0, an initial localization generated by\nBAYESTAR [7], distributed via GCN notice about 26 seconds after the\ncandidate event time.\n * bayestar.multiorder.fits,1, an initial localization generated by\nBAYESTAR [7], distributed via GCN notice about 5 minutes after the\ncandidate event time.\n\nThe preferred sky map at this time is bayestar.multiorder.fits,1. For\nthe bayestar.multiorder.fits,1 sky map, the 90% credible region is 705\ndeg2. Marginalized over the whole sky, the a posteriori luminosity\ndistance estimate is 2047 +/- 585 Mpc (a posteriori mean +/- standard\ndeviation).\n\nFor further information about analysis methodology and the contents of\nthis alert, refer to the LIGO/Virgo/KAGRA Public Alerts User Guide\nhttps://emfollow.docs.ligo.org/userguide/.\n\n [1] Klimenko et al. PRD 93, 042004 (2016)\n [2] Aubin et al. CQG 38, 095004 (2021)\n [3] Tsukada et al. arXiv:2305.06286 (2023) and Ewing et al.\narXiv:2305.05625 (2023)\n [4] Dal Canton et al. ApJ 923, 254 (2021)\n [5] Chu et al. PRD 105, 024023 (2022)\n [6] Chatterjee et al. ApJ 896, 54 (2020)\n [7] Singer & Price PRD 93, 024013 (2016)\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg4MDAwMzUwLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.-81_-CTNMROvxIxh4bhRqDYJ99eobmqJUzHTXh3CYw8\n\n",
"published": "2023-06-29T00:59:15.532377Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-29T00:59:15.532396Z",
"modified": "2023-06-29T00:59:15.537510Z",
"nonlocalizedevents": [
{
"event_id": "S230628a"
}
],
"targets": []
},
{
"id": 730,
"topic": "igwn.gwalert",
"uuid": "00aa3e9f-72f4-441f-a3f4-6ae02d538b40",
"title": "S230629e - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230629e/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230629e/view/"
},
"event": {
"far": 1.869453880633898e-05,
"time": "2023-06-29T01:00:13.936Z",
"group": "CBC",
"search": "AllSky",
"area_50": 349.93299420023095,
"area_90": 1423.0223754555336,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.0,
"HasRemnant": 1.0
},
"instruments": [
"H1",
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],
"significant": false,
"skymap_hash": "d63422379001e925d5ae48b2f3b00de7",
"classification": {
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"NSBH": 0.00012151130420527772,
"Terrestrial": 0.9977342560494117
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-06-29T01:00:37Z",
"superevent_id": "S230629e",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-29T01:00:38.690240Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-29T01:00:38.690264Z",
"modified": "2023-06-29T01:00:38.695463Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 731,
"topic": "igwn.gwalert",
"uuid": "fb4bf088-052b-418e-80f2-1f7a19a5a1bd",
"title": "S230629e - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230629e/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230629e/view/"
},
"event": {
"far": 1.869453880633898e-05,
"time": "2023-06-29T01:00:13.936Z",
"group": "CBC",
"search": "AllSky",
"area_50": 349.93299420023095,
"area_90": 1423.0223754555336,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.0,
"HasRemnant": 1.0
},
"instruments": [
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"L1"
],
"significant": false,
"skymap_hash": "d63422379001e925d5ae48b2f3b00de7",
"classification": {
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"BNS": 0.002144232646383008,
"NSBH": 0.00012151130420527772,
"Terrestrial": 0.9977342560494117
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-06-29T01:05:18Z",
"superevent_id": "S230629e",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-29T01:05:20.422103Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-29T01:05:20.422126Z",
"modified": "2023-06-29T01:05:20.426889Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 732,
"topic": "igwn.gwalert",
"uuid": "8a6de530-10f7-41a3-9155-01fc45256b6d",
"title": "S230629h - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230629h/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230629h/view/"
},
"event": {
"far": 1.315919697159812e-05,
"time": "2023-06-29T01:10:26.725Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1031.4918899645243,
"area_90": 4629.5437469847975,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.04264138160689884,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "49a0621b8f680aea5fd1833ace61488d",
"classification": {
"BBH": 0.14305538544403273,
"BNS": 1.598449170456301e-16,
"NSBH": 1.2336760930515084e-14,
"Terrestrial": 0.8569446145559547
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-06-29T01:10:52Z",
"superevent_id": "S230629h",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-29T01:10:54.114194Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-29T01:10:54.114219Z",
"modified": "2023-06-29T01:10:54.119322Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 733,
"topic": "igwn.gwalert",
"uuid": "d232c76c-a92b-4a83-add2-630fcfe0eb5e",
"title": "S230629h - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230629h/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230629h/view/"
},
"event": {
"far": 1.315919697159812e-05,
"time": "2023-06-29T01:10:26.725Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1031.4918899645243,
"area_90": 4629.5437469847975,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.04264138160689884,
"HasRemnant": 0.0
},
"instruments": [
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"L1"
],
"significant": false,
"skymap_hash": "49a0621b8f680aea5fd1833ace61488d",
"classification": {
"BBH": 0.14305538544403273,
"BNS": 1.598449170456301e-16,
"NSBH": 1.2336760930515084e-14,
"Terrestrial": 0.8569446145559547
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-06-29T01:15:27Z",
"superevent_id": "S230629h",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-29T01:15:27.795204Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-29T01:15:27.795245Z",
"modified": "2023-06-29T01:15:27.800874Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 734,
"topic": "gcn.circular",
"uuid": "4f12c6c9-ae7d-41f4-8a1c-eb14002b7fb4",
"title": "Fermi GRB 230628D: 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": "23/06/29 02:00:34 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"title": "GCN CIRCULAR",
"number": "34114",
"subject": "Fermi GRB 230628D: Global MASTER-Net observations report"
},
"message_text": "V. Lipunov, V.Kornilov, E.Gorbovskoy, K.Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, D. Vlasenko,\nG.Antipov, D.Zimnukhov, V.Senik, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D.Cheryasov, Ya.Kechin\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. Gres, N.M. Budnev\n(Irkutsk State University, API),\n\nL.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.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\nA. Gabovich, V.Yurkov\n(Blagoveschensk Educational State University)\n\n\nMASTER-OAFA robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Argentina (OAFA observatory of San Juan National University) started inspect of the Fermi GRB 230628D ( Fermi GBM team, GCN 34108) errorbox 15347 sec after notice time and 15383 sec after trigger time at 2023-06-29 00:38:54 UT, with upper limit up to 19.0 mag. The observations began at zenith distance = 60 deg. The sun altitude is -36.9 deg.\n\nThe galactic latitude b = 68 deg., longitude l = 253 deg.\n\n\nReal time updated cover map and OT discovered available here:\nhttps://master.sai.msu.ru/site/master2/observ.php?id\"30025\n\nWe obtain a following upper limits.\n\nTmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n 15473 | 2023-06-29 00:38:54 | MASTER-OAFA | (11h 38m 17.90s , +12d 57m 37.4s) | C | 180 | 18.3 |\n 15653 | 2023-06-29 00:38:54 | MASTER-OAFA | (11h 38m 17.90s , +12d 57m 37.4s) | C | 540 | 19.0 | Coadd\n 15685 | 2023-06-29 00:42:26 | MASTER-OAFA | (11h 38m 23.91s , +12d 56m 35.9s) | C | 180 | 18.2 |\n 16524 | 2023-06-29 00:56:25 | MASTER-OAFA | (11h 38m 20.58s , +12d 55m 38.5s) | C | 180 | 18.1 |\n 18504 | 2023-06-29 01:29:25 | MASTER-OAFA | (11h 42m 15.16s , +13d 09m 29.7s) | C | 180 | 17.8 |\n 18684 | 2023-06-29 01:29:25 | MASTER-OAFA | (11h 42m 15.16s , +13d 09m 29.7s) | C | 540 | 18.5 | Coadd\n 18716 | 2023-06-29 01:32:57 | MASTER-OAFA | (11h 42m 15.00s , +13d 08m 03.9s) | C | 180 | 17.8 |\n 18927 | 2023-06-29 01:36:28 | MASTER-OAFA | (11h 42m 16.98s , +13d 09m 21.5s) | C | 180 | 17.9 |\n 19137 | 2023-06-29 01:39:58 | MASTER-OAFA | (11h 42m 12.15s , +13d 08m 40.0s) | C | 180 | 17.6 |\n 19581 | 2023-06-29 01:47:22 | MASTER-OAFA | (11h 38m 17.87s , +11d 38m 32.8s) | C | 180 | 17.6 |\n 19792 | 2023-06-29 01:50:54 | MASTER-OAFA | (11h 38m 12.10s , +11d 37m 29.1s) | C | 180 | 17.9 |\nFilter C is a clear (unfiltred) band.\n\n\nThe observation and reduction will continue.\nThe message may be cited.\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg4MDA0MDM5LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.6sbKJGjU6OYofR2GwYUhUD8uJ8ZtqSdXl61YIRvt3zc\n\n",
"published": "2023-06-29T02:00:45.015602Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-29T02:00:45.015621Z",
"modified": "2023-06-29T02:00:45.021330Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 735,
"topic": "gcn.circular",
"uuid": "bdefb45c-5cbd-4172-8918-3c6efa828029",
"title": "GRB 230628A: Enhanced Swift-XRT position",
"submitter": "Hop gcn.circular",
"authors": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
"data": {
"date": "23/06/29 04:09:47 GMT",
"from": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
"title": "GCN CIRCULAR",
"number": "34115",
"subject": "GRB 230628A: 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 3999 s of XRT Photon Counting mode data and 9 UVOT\nimages for GRB 230628A, 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 = 171.84876, -11.46370 which is equivalent\nto:\n\nRA (J2000): 11h 27m 23.70s\nDec (J2000): -11d 27' 49.3\"\n\nwith an uncertainty of 2.1 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\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg4MDExNzkzLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.L90eJpkxpBz88tnCwTS_SqliQg4SBjVDkI6S7kO1OpI\n\n",
"published": "2023-06-29T04:09:59.199902Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-29T04:09:59.199922Z",
"modified": "2023-06-29T04:09:59.204737Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 736,
"topic": "gcn.circular",
"uuid": "bc03a2b4-c61d-4adc-9695-37cc6837e3c3",
"title": "GRB 230628E: Enhanced Swift-XRT position (Correction to name in GCN 34115)",
"submitter": "Hop gcn.circular",
"authors": "K.L. Page at U Leicester <klp5@leicester.ac.uk>",
"data": {
"date": "23/06/29 04:37:07 GMT",
"from": "K.L. Page at U Leicester <klp5@leicester.ac.uk>",
"title": "GCN CIRCULAR",
"number": "34116",
"subject": "GRB 230628E: Enhanced Swift-XRT position (Correction to name in GCN 34115)"
},
"message_text": "K.L. Page and P.A. Evans (U. Leicester) report on behalf of the Swift-XRT\nteam:\n\nGCN 34115 incorrectly referred to GRB 230628A; the enhanced position given\nwas instead for GRB 230628E. We repeat the details here, with the correct\nname:\n\nUsing 3999 s of XRT Photon Counting mode data and 9 UVOT images for GRB\n230628E, we find an astrometrically corrected X-ray position (using the\nXRT-UVOT alignment and matching UVOT field sources to the USNO-B1\ncatalogue): RA, Dec = 171.84876, -11.46370 which is equivalent to:\n\nRA (J2000): 11h 27m 23.70s\nDec (J2000): -11d 27' 49.3\"\n\nwith an uncertainty of 2.1 arcsec (radius, 90% confidence).\n\nThis position may be improved as more data are received. The latest\nposition can be viewed at https://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 is an official product of the Swift-XRT team.\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg4MDEzNDMzLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.Ff58lPdG1goQ5n9BtPpGJU889Vn3LxeyzAX4XTjx45Q\n\n",
"published": "2023-06-29T04:37:18.244426Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-29T04:37:18.244456Z",
"modified": "2023-06-29T04:37:18.260615Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 737,
"topic": "igwn.gwalert",
"uuid": "3a8d44f3-4320-4f7b-a506-ed82876dac89",
"title": "S230629p - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230629p/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230629p/view/"
},
"event": {
"far": 1.686018e-05,
"time": "2023-06-29T05:36:20.377Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1066.5323996520906,
"area_90": 4251.861606639772,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.026260429225946468,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "9542259bb74381851bed3cd40ab29ffc",
"classification": {
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"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.969843088
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-06-29T05:36:49Z",
"superevent_id": "S230629p",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-29T05:36:49.928124Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-29T05:36:49.928151Z",
"modified": "2023-06-29T05:36:49.935357Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 738,
"topic": "hermes.message",
"uuid": "82093931-db01-4b6a-8589-e9122bd71b5c",
"title": "INTEGRAL follow-up of S230629p",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230629p at 2023-06-29T05:36:20.000\n\n\n\n\n\nbreak since 7.5 hr next data in 1.8 hr",
"published": "2023-06-29T05:37:38.022125Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-06-29T05:37:38.022144Z",
"modified": "2023-06-29T05:37:38.026702Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 739,
"topic": "igwn.gwalert",
"uuid": "b0294606-6c07-4dfb-931b-87cd813af80d",
"title": "S230629p - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230629p/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230629p/view/"
},
"event": {
"far": 1.686018e-05,
"time": "2023-06-29T05:36:20.377Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1066.5323996520906,
"area_90": 4251.861606639772,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.026260429225946468,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "9542259bb74381851bed3cd40ab29ffc",
"classification": {
"BBH": 0.030156912,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.969843088
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-06-29T05:41:23Z",
"superevent_id": "S230629p",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-29T05:41:24.559059Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-29T05:41:24.559084Z",
"modified": "2023-06-29T05:41:24.564708Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 740,
"topic": "igwn.gwalert",
"uuid": "8ce2a07c-f860-4a61-871c-35af9beecbc6",
"title": "S230629q - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230629q/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230629q/view/"
},
"event": {
"far": 6.905082045705058e-06,
"time": "2023-06-29T05:49:24.079Z",
"group": "CBC",
"search": "AllSky",
"area_50": 2189.7171203559346,
"area_90": 9024.085273310468,
"duration": null,
"pipeline": "spiir",
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"significant": false,
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"Terrestrial": 0.646562872093364
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"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-06-29T05:49:47Z",
"superevent_id": "S230629q",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-29T05:49:47.710097Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-29T05:49:47.710120Z",
"modified": "2023-06-29T05:49:47.715067Z",
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"targets": []
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{
"id": 741,
"topic": "hermes.message",
"uuid": "62663b86-159b-44ff-9f7e-f2ee898c1c80",
"title": "INTEGRAL follow-up of S230629q",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230629q at 2023-06-29T05:49:24.000\n\n\n\n\n\nbreak since 7.7 hr next data in 1.5 hr",
"published": "2023-06-29T05:50:23.806416Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-06-29T05:50:23.806437Z",
"modified": "2023-06-29T05:50:23.811346Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 742,
"topic": "igwn.gwalert",
"uuid": "edfc1b26-130e-4097-a4e7-89bd6e420196",
"title": "S230629q - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
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"gracedb": "https://gracedb.ligo.org/superevents/S230629q/view/"
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"event": {
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"time": "2023-06-29T05:49:24.079Z",
"group": "CBC",
"search": "AllSky",
"area_50": 2189.7171203559346,
"area_90": 9024.085273310468,
"duration": null,
"pipeline": "spiir",
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"sequence_num": 2,
"time_created": "2023-06-29T05:54:22Z",
"superevent_id": "S230629q",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-29T05:54:23.574430Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-29T05:54:23.574454Z",
"modified": "2023-06-29T05:54:23.579509Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 743,
"topic": "gcn.circular",
"uuid": "a06b9f4c-d14b-4e60-b5c5-efe5f29acf5b",
"title": "GRB 230628E: Swift-XRT refined Analysis",
"submitter": "Hop gcn.circular",
"authors": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
"data": {
"date": "23/06/29 06:42:28 GMT",
"from": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
"title": "GCN CIRCULAR",
"number": "34117",
"subject": "GRB 230628E: Swift-XRT refined Analysis"
},
"message_text": "J.A. Kennea (PSU), A. Tohuvavohu (U. Toronto), K.L. Page (U.\nLeicester), A.P. Beardmore (U. Leicester), M. Capalbi (INAF-IASFPA), M.\nPerri (SSDC & INAF-OAR), V. D'Elia (SSDC & INAF-OAR), D.N. Burrows\n(PSU) and P.A. Evans report on behalf of the Swift-XRT team:\n\nWe have analysed 6.3 ks of XRT data for GRB 230628E, from 226 s to 22.6\nks after the BAT trigger. The data are entirely in Photon Counting\n(PC) mode.\n\nThe light curve can be modelled with a power-law decay with a decay\nindex of alpha=0.85 (+/-0.05).\n\nA spectrum formed from the PC mode data can be fitted with an absorbed\npower-law with a photon spectral index of 1.94 (+/-0.18). The\nbest-fitting absorption column is 9.5 (+4.9, -4.3) x 10^20 cm^-2, in\nexcess of the Galactic value of 4.3 x 10^20 cm^-2 (Willingale et al.\n2013). The counts to observed (unabsorbed) 0.3-10 keV flux conversion\nfactor deduced from this spectrum is 3.4 x 10^-11 (4.1 x 10^-11) erg\ncm^-2 count^-1.\n\nA summary of the PC-mode spectrum is thus:\nTotal column:\t 9.5 (+4.9, -4.3) x 10^20 cm^-2\nGalactic foreground: 4.3 x 10^20 cm^-2\nExcess significance: 2.0 sigma\nPhoton index:\t 1.94 (+/-0.18)\n\nIf the light curve continues to decay with a power-law decay index of\n0.85, the count rate at T+24 hours will be 8.1 x 10^-3 count s^-1,\ncorresponding to an observed (unabsorbed) 0.3-10 keV flux of 2.8 x\n10^-13 (3.3 x 10^-13) erg cm^-2 s^-1.\n\nThe results of the XRT-team automatic analysis are available at\nhttp://www.swift.ac.uk/xrt_products/01177054.\n\nThis circular is an official product of the Swift-XRT team.\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg4MDIwOTUzLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.yCpj3kkGon56TGSfR5cUYRV0Yw1Sp-upEzQMkZIxRMg\n\n",
"published": "2023-06-29T06:42:38.306305Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-29T06:42:38.306325Z",
"modified": "2023-06-29T06:42:38.313159Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 744,
"topic": "igwn.gwalert",
"uuid": "30a6797e-0514-4708-9f33-cc4bba06e7a6",
"title": "S230629y - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
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"event": {
"far": 2.602377207949758e-06,
"time": "2023-06-29T07:09:01.162Z",
"group": "CBC",
"search": "AllSky",
"area_50": 576.1750874374661,
"area_90": 2039.4835578631357,
"duration": null,
"pipeline": "spiir",
"properties": {
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"HasMassGap": 0.3620692137871117,
"HasRemnant": 0.0
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"significant": false,
"skymap_hash": "a1aedccc29cec2ef24234fa74d4ad9ab",
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"BNS": 0.0,
"NSBH": 0.22976358387430845,
"Terrestrial": 0.6835195601616602
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"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-06-29T07:09:25Z",
"superevent_id": "S230629y",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-29T07:09:27.069100Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-29T07:09:27.069123Z",
"modified": "2023-06-29T07:09:27.075062Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 745,
"topic": "hermes.message",
"uuid": "dbb33fc7-6365-455c-9342-1ca662cd66fb",
"title": "INTEGRAL follow-up of S230629y",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230629y at 2023-06-29T07:09:01.000\n\n\n\n\n\nbreak since 9.1 hr next data in 0.21 hr",
"published": "2023-06-29T07:10:14.295842Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-06-29T07:10:14.295861Z",
"modified": "2023-06-29T07:10:14.300457Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 746,
"topic": "igwn.gwalert",
"uuid": "3870e01f-d209-424e-b814-798020c08c3b",
"title": "S230629y - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230629y/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230629y/view/"
},
"event": {
"far": 2.602377207949758e-06,
"time": "2023-06-29T07:09:01.162Z",
"group": "CBC",
"search": "AllSky",
"area_50": 576.1750874374661,
"area_90": 2039.4835578631357,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.7037333370036484,
"HasMassGap": 0.3620692137871117,
"HasRemnant": 0.0
},
"instruments": [
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"significant": false,
"skymap_hash": "a1aedccc29cec2ef24234fa74d4ad9ab",
"classification": {
"BBH": 0.08671685596403134,
"BNS": 0.0,
"NSBH": 0.22976358387430845,
"Terrestrial": 0.6835195601616602
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-06-29T07:14:00Z",
"superevent_id": "S230629y",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-29T07:14:01.685341Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-29T07:14:01.685366Z",
"modified": "2023-06-29T07:14:01.690862Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 747,
"topic": "gcn.circular",
"uuid": "4815d368-48d6-47d6-9c1a-ae3dac4982c3",
"title": "GRB230628E: VLT optical identification of afterglow candidate",
"submitter": "Hop gcn.circular",
"authors": "J. T. Palmerio at Observatoire de Paris - GEPI <jesse.palmerio@obspm.fr>",
"data": {
"date": "23/06/29 07:14:44 GMT",
"from": "J. T. Palmerio at Observatoire de Paris - GEPI <jesse.palmerio@obspm.fr>",
"title": "GCN CIRCULAR",
"number": "34118",
"subject": "GRB230628E: VLT optical identification of afterglow candidate"
},
"message_text": "D. B. Malesani (Radboud Univ. and DAWN/NBI) and J. Palmerio (GEPI / Paris Obs.) report on behalf of the STARGATE collaboration:\n We observed the field of GRB 230628E (Salvaggio et al., GCN 34110) with the ESO VLT UT3 (Melipal) equipped with the X-shooter acquisition camera.\n In a single 30 s exposure acquired in the r band, with mid time June 29.0252 UT (2.17 hr after the GRB), we see a new object, very close to the Swift/XRT position, which is not visible in the Pan-STARRS images of this field. Its coordinates (J2000, calibrated against the Gaia catalog, 0.5\" error) are:\n RA = 11:27:23.60\n Dec = -11:27:49.21\n Preliminary photometry (against the Pan-STARRS catalog) yields a magnitude r = 21.2\n We consider this object a strong candidate as the afterglow of GRB 230628E, due to its consistency with the X-ray position and lack of detection in the Pan-STARRS archival images.\n Further observations are in progress. We acknowledge expert support from the observing staff in Paranal, in particular Eleonora Sani (to whom we wish a happy birthday), Thomas Romain (on his last observing night in Paranal), Ditte Slumstrup (who actually discovered the afterglow), and Thomas Rivinius.\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg4MDIyODg5LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.zlKXGAhel7rX6N6qL-JT4v9lwJfPhIJOWnhwDRMi6jc\n\n",
"published": "2023-06-29T07:14:54.925182Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-29T07:14:54.925202Z",
"modified": "2023-06-29T07:14:54.931540Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 748,
"topic": "igwn.gwalert",
"uuid": "8bee0b99-fb49-4cf1-8d9a-ead1bf04ca93",
"title": "S230629ad - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230629ad/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230629ad/view/"
},
"event": {
"far": 1.31436e-05,
"time": "2023-06-29T08:57:04.344Z",
"group": "Burst",
"search": "BBH",
"area_50": 2269.4500166509956,
"area_90": 7205.335944137868,
"duration": 0.038247,
"pipeline": "CWB",
"properties": {},
"instruments": [
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"L1"
],
"significant": false,
"skymap_hash": "308622a667dfba09526d132d0d77afe3",
"classification": {},
"skymap_version": 0,
"central_frequency": 47.206997
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-06-29T08:58:29Z",
"superevent_id": "S230629ad",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-29T08:58:31.056670Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-29T08:58:31.056695Z",
"modified": "2023-06-29T08:58:31.063716Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 749,
"topic": "igwn.gwalert",
"uuid": "006da3d0-5bd1-4a2f-b767-66222208edb2",
"title": "S230629ad - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230629ad/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230629ad/view/"
},
"event": {
"far": 1.31436e-05,
"time": "2023-06-29T08:57:04.344Z",
"group": "Burst",
"search": "BBH",
"area_50": 2269.4500166509956,
"area_90": 7205.335944137868,
"duration": 0.038247,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "308622a667dfba09526d132d0d77afe3",
"classification": {},
"skymap_version": 0,
"central_frequency": 47.206997
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-06-29T09:03:03Z",
"superevent_id": "S230629ad",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-29T09:03:04.682905Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-29T09:03:04.682930Z",
"modified": "2023-06-29T09:03:04.687995Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 750,
"topic": "hermes.message",
"uuid": "e1f50d3a-0e04-4665-86ee-2b1983b3be5a",
"title": "INTEGRAL follow-up of S230629ad",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230629ad at 2023-06-29T08:57:04.000\n\n\nSPI-ACS excesses:\nat T0+154.73 FAP = 0.349\nat T0+155.12 FAP = 0.386\nat T0+161.48 FAP = 0.405\nat T0+161.48 FAP = 0.405\nat T0+161.48 FAP = 0.405\nat T0+161.48 FAP = 0.405\nat T0+183.82 FAP = 0.459\nat T0+156.61 FAP = 0.467\nat T0+156.61 FAP = 0.467\nat T0+156.61 FAP = 0.467\nat T0+169.37 FAP = 0.483\nat T0+169.37 FAP = 0.483\nat T0+169.37 FAP = 0.483\nat T0+174.98 FAP = 0.497\nat T0+176.49 FAP = 0.534\nat T0+181.73 FAP = 0.56\nat T0+165.15 FAP = 0.561\nat T0+157.97 FAP = 0.581\nat T0+158.81 FAP = 0.597\nat T0+192.55 FAP = 0.605\nat T0+167.81 FAP = 0.636\nat T0+159.8 FAP = 0.674\nat T0+188.48 FAP = 0.679\nat T0+177.65 FAP = 0.774\nat T0+171.42 FAP = 0.85\nat T0+190.76 FAP = 0.857\nat T0+173.76 FAP = 0.906\nat T0+201.98 FAP = 0.916\nat T0+164.21 FAP = 0.941\n\n\n\n\nnext break in data in 53 hr: 2023-07-01T13:56:31, for about 9 hr",
"published": "2023-06-29T09:17:29.253412Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-06-29T09:17:29.253441Z",
"modified": "2023-06-29T09:17:29.258968Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 751,
"topic": "gcn.circular",
"uuid": "74000d20-5099-473b-b9e9-080bde7f4123",
"title": "GRB 230625B: AstroSat CZTI detection",
"submitter": "Hop gcn.circular",
"authors": "Gaurav Waratkar at IIT Bombay <gauravwaratkar@iitb.ac.in>",
"data": {
"date": "23/06/29 09:19:30 GMT",
"from": "Gaurav Waratkar at IIT Bombay <gauravwaratkar@iitb.ac.in>",
"title": "GCN CIRCULAR",
"number": "34119",
"subject": "GRB 230625B: AstroSat CZTI detection"
},
"message_text": "P K. Navaneeth (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 GRB 230625B which was also detected by CALET (Trig. 1371713313) and Swift/BAT-GUANO (Ronchini et al., GCN Circ. 34084).\n\nThe source was clearly detected in the 20-200 keV energy range. The light curve peaks at 2023-06-25 07:28:57.50 UTC. The measured peak count rate associated with the burst is 279 (+55, -14) counts/s above the background in the combined data of all quadrants, with a total of 9279 (+893, -648) counts. The local mean background count rate was 504 (+3, -5) counts/s. Using cumulative rates, we measure a T90 of 65 (+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 peaks at 2023-06-25 07:28:57.50 UTC. The measured peak count rate associated with the burst is 266 (+80, -19) counts/s above the background in the combined data of all quadrants, with a total of 7354 (+1143, -1181) counts. The local mean background count rate was 1607 (+5, -6) counts/s. We measure a T90 of 70 (+3, -15) s from the cumulative Veto light curve.\n\nWe further report the detection of 2 more bright bursts, with multiple peaks, about 50 s after the first burst reported above had ended. Preliminary analysis shows that these subsequent emission bursts had similar signatures to GRB 230625B and lasted for about 200 s, after which AstroSat entered the South Atlantic Anomaly (SAA) region. We caution that since AstroSat was close to SAA, these bursts may not be related to GRB 230625B.\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\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg4MDMwMzc2LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.f4ZPFz7XsC5a5oOdPhF-disd7sPUmrweM4OUUnnXRu0\n\n",
"published": "2023-06-29T09:19:40.572311Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-29T09:19:40.572341Z",
"modified": "2023-06-29T09:19:40.577661Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 752,
"topic": "igwn.gwalert",
"uuid": "7af52d24-bb1f-4934-a2dd-a36579cac981",
"title": "S230629ah - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230629ah/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230629ah/view/"
},
"event": {
"far": 2.302727443748154e-05,
"time": "2023-06-29T10:16:18.147Z",
"group": "CBC",
"search": "AllSky",
"area_50": 800.6861375314533,
"area_90": 3406.6929059121267,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.9142323334261133,
"HasMassGap": 0.9725196137343874,
"HasRemnant": 0.02082570298314519
},
"instruments": [
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"significant": false,
"skymap_hash": "6c01ce8e9c4d3d9ebf8f523b7a7d4d6a",
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"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-06-29T10:16:43Z",
"superevent_id": "S230629ah",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-29T10:16:44.879994Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-29T10:16:44.880020Z",
"modified": "2023-06-29T10:16:44.887738Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 753,
"topic": "igwn.gwalert",
"uuid": "47daf972-85a1-4d55-8946-975d623558eb",
"title": "S230629ah - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230629ah/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230629ah/view/"
},
"event": {
"far": 2.302727443748154e-05,
"time": "2023-06-29T10:16:18.147Z",
"group": "CBC",
"search": "AllSky",
"area_50": 800.6861375314533,
"area_90": 3406.6929059121267,
"duration": null,
"pipeline": "spiir",
"properties": {
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"HasMassGap": 0.9725196137343874,
"HasRemnant": 0.02082570298314519
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"instruments": [
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"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-06-29T10:21:17Z",
"superevent_id": "S230629ah",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-29T10:21:19.572939Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-29T10:21:19.572963Z",
"modified": "2023-06-29T10:21:19.577955Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 754,
"topic": "hermes.message",
"uuid": "d1aa9f4b-ca63-4889-acba-c4ea01595360",
"title": "INTEGRAL follow-up of S230629ah",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230629ah at 2023-06-29T10:16:18.000\n\n\nSPI-ACS excesses:\nat T0+-14.82 FAP = 0.096\nat T0+7.78 FAP = 0.175\nat T0+-7.82 FAP = 0.233\nat T0+85.58 FAP = 0.278\nat T0+4.43 FAP = 0.31\nat T0+4.93 FAP = 0.336\nat T0+38.83 FAP = 0.404\nat T0+11.53 FAP = 0.667\nat T0+-20.12 FAP = 0.826\nat T0+24.2 FAP = 0.952\n\n\n\n\nnext break in data in 52 hr: 2023-07-01T13:56:31, for about 9 hr",
"published": "2023-06-29T10:28:34.352052Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-06-29T10:28:34.352072Z",
"modified": "2023-06-29T10:28:34.357135Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 755,
"topic": "gcn.circular",
"uuid": "82db501a-0cb7-4f0f-a27b-49cc66a84307",
"title": "Fermi GRB 230628C: 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": "23/06/29 11:30:37 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"title": "GCN CIRCULAR",
"number": "34120",
"subject": "Fermi GRB 230628C: Global MASTER-Net observations report"
},
"message_text": "V. Lipunov, V.Kornilov, E.Gorbovskoy, K.Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, D. Vlasenko,\nG.Antipov, D.Zimnukhov, V.Senik, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D.Cheryasov, Ya.Kechin\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. Gres, N.M. Budnev\n(Irkutsk State University, API),\n\nL.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.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\nA. Gabovich, V.Yurkov\n(Blagoveschensk Educational State University)\n\n\nMASTER-OAGH robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Mexico (OAGH National Institute for Astrophysics, Optics and Electronics) started inspect of the Fermi GRB 230628C ( Fermi GBM team, GCN 34106) errorbox 61791 sec after notice time and 61823 sec after trigger time at 2023-06-29 10:46:57 UT, with upper limit up to 17.1 mag. Observations started at twilight. The observations began at zenith distance = 27 deg. The sun altitude is -16.8 deg.\n\nThe galactic latitude b = 2 deg., longitude l = 73 deg.\n\n\nReal time updated cover map and OT discovered available here:\nhttps://master.sai.msu.ru/site/master2/observ.php?id\"29961\n\nWe obtain a following upper limits.\n\nTmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n 61913 | 2023-06-29 10:46:57 | MASTER-OAGH | (19h 47m 59.92s , +37d 05m 18.1s) | C | 180 | 17.1 |\nFilter C is a clear (unfiltred) band.\n\n\nThe observation and reduction will continue.\nThe message may be cited.\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg4MDM4MjQyLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.2joEf-m_6gFv9HOOFvsXFeWHx-f-HSTbQLO-gX-fu08\n\n",
"published": "2023-06-29T11:30:47.774374Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-29T11:30:47.774393Z",
"modified": "2023-06-29T11:30:47.779790Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 756,
"topic": "gcn.circular",
"uuid": "8947cb93-cae1-46bf-b2a9-42779940bcaa",
"title": "ZTF23aaoohpy/AT2023lcr: LBT observations",
"submitter": "Hop gcn.circular",
"authors": "Andrea Rossi at INAF <andrea.rossi@inaf.it>",
"data": {
"date": "23/06/29 12:32:55 GMT",
"from": "Andrea Rossi at INAF <andrea.rossi@inaf.it>",
"title": "GCN CIRCULAR",
"number": "34121",
"subject": "ZTF23aaoohpy/AT2023lcr: LBT observations"
},
"message_text": "A. Rossi, E. Maiorano, E. Palazzi (INAF-OAS), D. B. Malesani (U. Radboud and DAWN/NBI), A. Melandri (INAF-OAB, INAF-OAR), report on behalf of the CIBO collaboration:\n\nWe observed the field of the fast red optical transient ZTF23aaoohpy/AT2023lcr (Swain et al., GCN 34022; Gompertz et al., GCN 34023; Kumar et al., GCN 34025) with the LBC camera mounted on LBT (Mt Graham, AZ, USA) on 2023-06-23 in uâgârâzâ bands at approximately 4:30 UT. A second observation was obtained on 2023-06-26 at 08:30 UT in gârâzâ bands. Both observations were performed under good weather conditions.\n\nWe detect the optical transient in all bands and epochs and we measure the following preliminary AB magnitudes for the first observation:\nrâ= 22.5 +/- 0.1 \ncalibrated against SDSS field stars, and not corrected for the foreground Galactic extinction.\n\nWe acknowledge the excellent support from the LBTO and LBT-INAF staff, particularly D. Thompson, D. Gonzalez Huerta, F. Cusano and D. Paris, in obtaining these observations.\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg4MDQxOTgxLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.Hxh6KRw6WQ2-jXhVnFS2FK0sG5gdpEwKzFR_l7CVpdE\n\n",
"published": "2023-06-29T12:33:06.349838Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-29T12:33:06.349857Z",
"modified": "2023-06-29T12:33:06.354874Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 757,
"topic": "gcn.circular",
"uuid": "0df50090-5123-413e-9384-7565bd1feb99",
"title": "GRB 230628E - VLT spectroscopic observations",
"submitter": "Hop gcn.circular",
"authors": "J. T. Palmerio at Observatoire de Paris - GEPI <jesse.palmerio@obspm.fr>",
"data": {
"date": "23/06/29 13:05:51 GMT",
"from": "J. T. Palmerio at Observatoire de Paris - GEPI <jesse.palmerio@obspm.fr>",
"title": "GCN CIRCULAR",
"number": "34122",
"subject": "GRB 230628E - VLT spectroscopic observations"
},
"message_text": "J. T. Palmerio (GEPI / Paris Obs. and IAP), D. B. Malesani (Radboud Univ. and DAWN/NBI), A. Saccardi (GEPI / Paris Obs.), L. Izzo (INAF/OACn & DARK/NBI), P. Schady (Univ. Bath), A. de Ugarte Postigo (OCA) report on behalf of the STARGATE collaboration:\n\nWe observed the optical afterglow candidate of GRB 230628E (Malesani et al. GCN 34118) with the ESO VLT UT3 (Melipal) equipped with the X-shooter spectrograph.\nSpectroscopy was carried out, covering the wavelength range 3000-21000 AA, and consisting of 4 exposures of 600 s each. The observation mid time was 2023 June 29 at 01:05 UT (~2.7 hours after the GRB).\n\nOnly a faint continuum is detected from this source down to ~3700 Angstrom, which allows us to set a redshift upper limit z <~ 2.\nWe note a possible, very faint emission feature at ~15550 Angstrom but in the absence of other associated emission features, we do not derive a redshift from this.\n\nWe acknowledge expert support from the observing staff in Paranal, in particular Eleonora Sani, Thomas Romain, Ditte Slumstrup, and Thomas Rivinius.\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg4MDQzOTU3LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.4UyDjhx0-arWB9frLWMzZYtGCQqtf7iUTcWwbhzYI-8\n\n",
"published": "2023-06-29T13:06:03.208615Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-29T13:06:03.208634Z",
"modified": "2023-06-29T13:06:03.214568Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 758,
"topic": "gcn.circular",
"uuid": "e29ce859-b721-4385-b907-6db92f534900",
"title": "GRB 230625B: CALET Gamma-Ray Burst Monitor detection",
"submitter": "Hop gcn.circular",
"authors": "Yuta Kawakubo at Louisiana State University <kawakubo1@lsu.edu>",
"data": {
"date": "23/06/30 04:09:47 GMT",
"from": "Yuta Kawakubo at Louisiana State University <kawakubo1@lsu.edu>",
"title": "GCN CIRCULAR",
"number": "34123",
"subject": "GRB 230625B: CALET Gamma-Ray Burst Monitor detection"
},
"message_text": "Y. Asaoka (ICRR), A. Yoshida, T. Sakamoto, S. Sugita (AGU),\nY. Kawakubo (LSU), K. Yamaoka (Nagoya U), S. Nakahira (JAXA),\nS. 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 230625B (Swift/BAT-GUANO Detection: Ronchini et al.,\nGCN Circ. 34083; AstroSat CZTI detection: Navaneeth et al., GCN\nCirc. 34119) triggered the CALET Gamma-ray Burst Monitor (CGBM)\nat 07:28:45.62 UTC on 25 June 2023\n(http://cgbm.calet.jp/cgbm_trigger/flight/1371713313/index.html).\nThe burst signal was seen by all CGBM detectors.\n\nThe burst light curve shows multi-peaked structure that starts\nat T-2.0 sec. The whole episode was not seen by CGBM because\nthe sequence of the HV turn-off started from T+220 sec.\n\nThe ground-processed light curve is available at\n\nhttp://cgbm.calet.jp/cgbm_trigger/ground/1371713313/\n\nThe CALET data used in this analysis are provided by\nthe Waseda CALET Operation Center located at Waseda University.\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg4MDk4MTkzLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.jARS02PRcBmUrvZds9MdroOOyTW3C10-zrwWK85kD50\n\n",
"published": "2023-06-30T04:10:02.855923Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-30T04:10:02.855943Z",
"modified": "2023-06-30T04:10:02.861856Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 759,
"topic": "igwn.gwalert",
"uuid": "5ab4bcf9-5621-4000-b5e2-e3d22ed49519",
"title": "S230630n - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230630n/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230630n/view/"
},
"event": {
"far": 1.674586928857025e-05,
"time": "2023-06-30T05:42:55.252Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1978.2151217627204,
"area_90": 8019.450779992701,
"duration": null,
"pipeline": "spiir",
"properties": {
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"HasMassGap": 0.33774691974691967,
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"significant": false,
"skymap_hash": "917b614ad5f9f6f7743e73a8315fc64f",
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"BNS": 0.07737361997440748,
"NSBH": 0.0034973777496500684,
"Terrestrial": 0.9191290022759424
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"skymap_version": 0,
"central_frequency": null
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"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-06-30T05:43:18Z",
"superevent_id": "S230630n",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-30T05:43:19.785885Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-30T05:43:19.785912Z",
"modified": "2023-06-30T05:43:19.793336Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 760,
"topic": "igwn.gwalert",
"uuid": "4a3ea005-17af-4fd2-b4b1-23e785287144",
"title": "S230630n - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230630n/files/bayestar.multiorder.fits,0",
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},
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"far": 1.674586928857025e-05,
"time": "2023-06-30T05:42:55.252Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1978.2151217627204,
"area_90": 8019.450779992701,
"duration": null,
"pipeline": "spiir",
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"Terrestrial": 0.9191290022759424
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"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-06-30T05:47:53Z",
"superevent_id": "S230630n",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-30T05:47:54.478538Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-30T05:47:54.478612Z",
"modified": "2023-06-30T05:47:54.485087Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 761,
"topic": "igwn.gwalert",
"uuid": "8605359d-28d1-42a2-baae-b325222bcfca",
"title": "S230630q - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230630q/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230630q/view/"
},
"event": {
"far": 2.227352888439782e-05,
"time": "2023-06-30T06:29:58.722Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1288.9452156330497,
"area_90": 4286.272646093429,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.6215247399813583,
"HasMassGap": 0.1782327813106998,
"HasRemnant": 0.0
},
"instruments": [
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"L1"
],
"significant": false,
"skymap_hash": "7338ebffd4892d7b2d434e470e1aeb7d",
"classification": {
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"BNS": 0.0,
"NSBH": 0.06631445317809223,
"Terrestrial": 0.9177088973097904
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"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-06-30T06:30:23Z",
"superevent_id": "S230630q",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-30T06:30:24.619861Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-30T06:30:24.619885Z",
"modified": "2023-06-30T06:30:24.626840Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 762,
"topic": "igwn.gwalert",
"uuid": "dd6469c6-438e-4723-bb49-89ec3eebe5a5",
"title": "S230630q - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230630q/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230630q/view/"
},
"event": {
"far": 2.227352888439782e-05,
"time": "2023-06-30T06:29:58.722Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1288.9452156330497,
"area_90": 4286.272646093429,
"duration": null,
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{
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"title": "S230630ab - PRELIMINARY",
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{
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"title": "S230630ac - PRELIMINARY",
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{
"id": 765,
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"title": "S230630ab - PRELIMINARY",
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"sequence_num": 2,
"time_created": "2023-06-30T09:51:23Z",
"superevent_id": "S230630ab",
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},
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"published": "2023-06-30T09:51:24.541694Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-30T09:51:24.541729Z",
"modified": "2023-06-30T09:51:24.547507Z",
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},
{
"id": 766,
"topic": "igwn.gwalert",
"uuid": "948f462c-1e49-4d85-b9d1-77eebd08fbff",
"title": "S230630ac - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"time_created": "2023-06-30T09:52:25Z",
"superevent_id": "S230630ac",
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},
"message_text": "",
"published": "2023-06-30T09:52:26.827477Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-30T09:52:26.827501Z",
"modified": "2023-06-30T09:52:26.832478Z",
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},
{
"id": 767,
"topic": "igwn.gwalert",
"uuid": "36ab2725-d4c2-44b5-9168-953f3e4d5309",
"title": "S230630ak - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"gracedb": "https://gracedb.ligo.org/superevents/S230630ak/view/"
},
"event": {
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"time": "2023-06-30T12:38:44.071Z",
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"area_90": 1378.1201654367364,
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"time_created": "2023-06-30T12:39:43Z",
"superevent_id": "S230630ak",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-30T12:39:44.371551Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-30T12:39:44.371573Z",
"modified": "2023-06-30T12:39:44.378502Z",
"nonlocalizedevents": [],
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},
{
"id": 768,
"topic": "igwn.gwalert",
"uuid": "142f45ed-063f-477a-8e11-1d801cdd1874",
"title": "S230630ak - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"gracedb": "https://gracedb.ligo.org/superevents/S230630ak/view/"
},
"event": {
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"time": "2023-06-30T12:38:44.071Z",
"group": "Burst",
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"area_90": 1378.1201654367364,
"duration": 0.018966,
"pipeline": "CWB",
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},
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"time_created": "2023-06-30T12:44:18Z",
"superevent_id": "S230630ak",
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},
"message_text": "",
"published": "2023-06-30T12:44:19.916302Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-30T12:44:19.916327Z",
"modified": "2023-06-30T12:44:19.921860Z",
"nonlocalizedevents": [],
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},
{
"id": 769,
"topic": "igwn.gwalert",
"uuid": "e82a059f-4a57-4ae8-b161-c6729dc1118c",
"title": "S230630am - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230630am/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230630am/view/"
},
"event": {
"far": 2.412787446688886e-08,
"time": "2023-06-30T12:58:06.902Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1000.8576719143168,
"area_90": 3641.6951265712532,
"duration": null,
"pipeline": "gstlal",
"properties": {
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"HasMassGap": 0.04264138160689884,
"HasRemnant": 0.0
},
"instruments": [
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"L1"
],
"significant": true,
"skymap_hash": "64bc8eea3a10f4fa576e636701c7d79b",
"classification": {
"BBH": 0.9825057756089519,
"BNS": 9.896791560423668e-16,
"NSBH": 7.656199763323968e-14,
"Terrestrial": 0.01749422439097048
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-06-30T12:58:39Z",
"superevent_id": "S230630am",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-30T12:58:40.684207Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-30T12:58:40.684230Z",
"modified": "2023-06-30T12:58:40.689358Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 770,
"topic": "igwn.gwalert",
"uuid": "5b6f15c7-4c26-43f5-a030-591102b1adf3",
"title": "S230630am - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230630am/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230630am/view/"
},
"event": {
"far": 2.412787446688886e-08,
"time": "2023-06-30T12:58:06.902Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1000.8576719143168,
"area_90": 3641.6951265712532,
"duration": null,
"pipeline": "gstlal",
"properties": {
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"HasMassGap": 0.04264138160689884,
"HasRemnant": 0.0
},
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],
"significant": true,
"skymap_hash": "64bc8eea3a10f4fa576e636701c7d79b",
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"BNS": 9.896791560423668e-16,
"NSBH": 7.656199763323968e-14,
"Terrestrial": 0.01749422439097048
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-06-30T13:03:38Z",
"superevent_id": "S230630am",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-30T13:03:39.282070Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-30T13:03:39.282094Z",
"modified": "2023-06-30T13:03:39.287052Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 771,
"topic": "igwn.gwalert",
"uuid": "5899963a-74e8-4c8b-84f5-9b56269711f9",
"title": "S230630am - INITIAL",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230630am/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230630am/view/"
},
"event": {
"far": 2.412787446688886e-08,
"time": "2023-06-30T12:58:06.902Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1000.8576719143168,
"area_90": 3641.6951265712532,
"duration": null,
"pipeline": "gstlal",
"properties": {
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"HasMassGap": 0.04264138160689884,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": true,
"skymap_hash": "64bc8eea3a10f4fa576e636701c7d79b",
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"BNS": 9.896791560423668e-16,
"NSBH": 7.656199763323968e-14,
"Terrestrial": 0.01749422439097048
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"central_frequency": null
},
"alert_type": "INITIAL",
"sequence_num": 3,
"time_created": "2023-06-30T13:21:09Z",
"superevent_id": "S230630am",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-30T13:21:10.278361Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-30T13:21:10.278384Z",
"modified": "2023-06-30T13:21:10.283509Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 772,
"topic": "gcn.circular",
"uuid": "fcf43bfe-92ca-47e3-8adf-83e29dc3fe1b",
"title": "LIGO/Virgo/KAGRA S230630am: Identification of a GW compact binary merger candidate",
"submitter": "Hop gcn.circular",
"authors": "thomas.sainrat@iphc.cnrs.fr",
"data": {
"date": "23/06/30 13:33:07 GMT",
"from": "thomas.sainrat@iphc.cnrs.fr",
"title": "GCN CIRCULAR",
"number": "34124",
"subject": "LIGO/Virgo/KAGRA S230630am: Identification of a GW compact binary merger candidate"
},
"message_text": "The LIGO Scientific Collaboration, the Virgo Collaboration, and the\nKAGRA Collaboration report:\n\nWe identified the compact binary merger candidate S230630am during\nreal-time processing of data from LIGO Hanford Observatory (H1) and\nLIGO Livingston Observatory (L1) at 2023-06-30 12:58:06.902 UTC (GPS\ntime: 1372165104.902). The candidate was found by the CWB [1], MBTA\n[2], and GstLAL [3] analysis pipelines.\n\nS230630am is an event of interest because its false alarm rate, as\nestimated by the online analysis, is 2.4e-08 Hz, or about one in 1\nyear, 3 months. The event's properties can be found at this URL:\n\nhttps://gracedb.ligo.org/superevents/S230630am\n\nThe classification of the GW signal, in order of descending\nprobability, is BBH (98%), Terrestrial (2%), NSBH (<1%), or BNS (<1%).\n\nAssuming the candidate is astrophysical in origin, the probability\nthat the lighter compact object is consistent with a neutron star mass\n(HasNS) is <1%. [4] Using the masses and spins inferred from the\nsignal, the probability of matter outside the final compact object\n(HasRemnant) is <1%. [4] Both HasNS and HasRemnant consider the\nsupport of several neutron star equations of state. The probability\nthat either of the binary components lies between 3 and 5 solar masses\n(HasMassgap) is 4%.\n\nTwo sky maps are available at this time and can be retrieved from the\nGraceDB event page:\n * bayestar.multiorder.fits,1, an initial localization generated by\nBAYESTAR [5], distributed via GCN notice about 32 seconds after the\ncandidate event time.\n * bayestar.multiorder.fits,2, an initial localization generated by\nBAYESTAR [5], distributed via GCN notice about 5 minutes after the\ncandidate event time.\n\nThe preferred sky map at this time is bayestar.multiorder.fits,2. For\nthe bayestar.multiorder.fits,2 sky map, the 90% credible region is\n3642 deg2. Marginalized over the whole sky, the a posteriori\nluminosity distance estimate is 8710 +/- 2735 Mpc (a posteriori mean\n+/- standard deviation).\n\nFor further information about analysis methodology and the contents of\nthis alert, refer to the LIGO/Virgo/KAGRA Public Alerts User Guide\nhttps://emfollow.docs.ligo.org/userguide/.\n\n [1] Klimenko et al. PRD 93, 042004 (2016)\n [2] Aubin et al. CQG 38, 095004 (2021)\n [3] Tsukada et al. arXiv:2305.06286 (2023) and Ewing et al.\narXiv:2305.05625 (2023)\n [4] Chatterjee et al. ApJ 896, 54 (2020)\n [5] Singer & Price PRD 93, 024013 (2016)\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg4MTMxOTkzLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.h2yqDzZSBoMvwxqcDa8n0n0lKAxuC49jXqyNGnIXRbE\n\n",
"published": "2023-06-30T13:33:18.831213Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-30T13:33:18.831232Z",
"modified": "2023-06-30T13:33:18.836307Z",
"nonlocalizedevents": [
{
"event_id": "S230630a"
}
],
"targets": []
},
{
"id": 773,
"topic": "igwn.gwalert",
"uuid": "0f287d67-5835-4af9-8553-60fa96a26725",
"title": "S230630bb - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230630bb/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230630bb/view/"
},
"event": {
"far": 8.7919e-06,
"time": "2023-06-30T18:23:09.673Z",
"group": "Burst",
"search": "AllSky",
"area_50": 188.00177652730142,
"area_90": 1035.68835819058,
"duration": 0.059655,
"pipeline": "CWB",
"properties": {},
"instruments": [
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"L1"
],
"significant": false,
"skymap_hash": "839a48cf9d2a8fb6e09d9cb433f8c173",
"classification": {},
"skymap_version": 0,
"central_frequency": 727.511475
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-06-30T18:24:21Z",
"superevent_id": "S230630bb",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-30T18:24:22.313391Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-30T18:24:22.313417Z",
"modified": "2023-06-30T18:24:22.329197Z",
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"targets": []
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{
"id": 774,
"topic": "igwn.gwalert",
"uuid": "f3f4dfb0-3d7b-4c92-9b18-216468ceb3ec",
"title": "S230630bb - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
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"gracedb": "https://gracedb.ligo.org/superevents/S230630bb/view/"
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"event": {
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"time": "2023-06-30T18:23:09.673Z",
"group": "Burst",
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"area_50": 188.00177652730142,
"area_90": 1035.68835819058,
"duration": 0.059655,
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"superevent_id": "S230630bb",
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"published": "2023-06-30T18:28:56.988631Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
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{
"id": 775,
"topic": "hermes.message",
"uuid": "62e12804-cba8-4f8c-8c11-195382599cb8",
"title": "INTEGRAL follow-up of S230630bb",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230630bb at 2023-06-30T18:23:09.000\n\n\nSPI-ACS excesses:\nat T0+1.88 FAP = 0.017\nat T0+54.78 FAP = 0.242\nat T0+42.18 FAP = 0.243\nat T0+59.43 FAP = 0.596\n\n\n\n\nnext break in data in 20 hr: 2023-07-01T13:56:31, for 9.3 hr",
"published": "2023-06-30T18:35:27.748679Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-06-30T18:35:27.748698Z",
"modified": "2023-06-30T18:35:27.753791Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 776,
"topic": "igwn.gwalert",
"uuid": "baae343b-c86d-4ade-b02d-e3fb9e7c6779",
"title": "S230630bd - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
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"event": {
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"time": "2023-06-30T18:45:17.823Z",
"group": "CBC",
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"area_50": 361.5781935275358,
"area_90": 1470.8621132325702,
"duration": null,
"pipeline": "pycbc",
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"published": "2023-06-30T18:45:42.923005Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-30T18:45:42.923027Z",
"modified": "2023-06-30T18:45:42.928054Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 777,
"topic": "igwn.gwalert",
"uuid": "5fb142f7-3238-46e3-aeb6-40fc0e80b5e9",
"title": "S230630bd - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
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"gracedb": "https://gracedb.ligo.org/superevents/S230630bd/view/"
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"event": {
"far": 9.739569955731392e-06,
"time": "2023-06-30T18:45:17.823Z",
"group": "CBC",
"search": "AllSky",
"area_50": 361.5781935275358,
"area_90": 1470.8621132325702,
"duration": null,
"pipeline": "pycbc",
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"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-06-30T18:50:16Z",
"superevent_id": "S230630bd",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-30T18:50:17.549211Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-30T18:50:17.549234Z",
"modified": "2023-06-30T18:50:17.554310Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 778,
"topic": "hermes.message",
"uuid": "d74ddd7f-8698-4465-a946-ca1734b47f59",
"title": "INTEGRAL follow-up of S230630bd",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230630bd at 2023-06-30T18:45:17.000\n\n\nSPI-ACS excesses:\nat T0+16.46 FAP = 0.068\nat T0+-65.99 FAP = 0.094\nat T0+71.71 FAP = 0.149\nat T0+19.89 FAP = 0.24\nat T0+-3.69 FAP = 0.255\nat T0+7.54 FAP = 0.337\nat T0+9.76 FAP = 0.368\nat T0+-31.64 FAP = 0.439\nat T0+-23.39 FAP = 0.682\n\n\n\n\nnext break in data in 19 hr: 2023-07-01T13:56:31, for 9.3 hr",
"published": "2023-06-30T18:58:38.566086Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-06-30T18:58:38.566120Z",
"modified": "2023-06-30T18:58:38.571454Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 779,
"topic": "gcn.circular",
"uuid": "26a473e3-7824-48c6-a6cf-053f89a7c6cf",
"title": "AT2023lcr (ATLAS23msn/ZTF23aaoohpy): ALMA 100 GHz Detection",
"submitter": "Hop gcn.circular",
"authors": "Anna Y Q Ho at Cornell University <ayh24@cornell.edu>",
"data": {
"date": "23/06/30 21:24:44 GMT",
"from": "Anna Y Q Ho at Cornell University <ayh24@cornell.edu>",
"title": "GCN CIRCULAR",
"number": "34125",
"subject": "AT2023lcr (ATLAS23msn/ZTF23aaoohpy): ALMA 100 GHz Detection"
},
"message_text": "Anna Y. Q. Ho (Cornell) and Daniel A. Perley (LJMU) report on behalf of a larger collaboration:\n\nIn an observation beginning at 03:35 on 29 June UT, we observed the location of the extragalactic fast optical transient AT2023lcr (Swain et al. GCN Circ. 34022; Fulton et al. GCN Circ. 34042) using the Atacama Large Millimeter/sub-millimeter Array (ALMA) in Band 3 (100 GHz) under excellent weather conditions. A counterpart was detected with a preliminary peak flux density of 0.17 mJy, at high significance (10-sigma).\n\nData were obtained under Program ID 2022.A.00025.T. We thank the ALMA staff for rapidly approving and executing our observations.\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg4MTYwMjg5LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.GgftAmgZsNhY22AbpOC_ROqbXCe6aYlroF2-fNeI-hk\n\n",
"published": "2023-06-30T21:24:59.257684Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-30T21:24:59.257704Z",
"modified": "2023-06-30T21:24:59.264816Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 780,
"topic": "igwn.gwalert",
"uuid": "5b2f40d2-a665-4bb0-807c-c283f782e4a8",
"title": "S230630bo - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
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"gracedb": "https://gracedb.ligo.org/superevents/S230630bo/view/"
},
"event": {
"far": 1.49768e-05,
"time": "2023-06-30T23:33:05.788Z",
"group": "Burst",
"search": "AllSky",
"area_50": 686.5422017827347,
"area_90": 2334.0756273322554,
"duration": 0.062085,
"pipeline": "CWB",
"properties": {},
"instruments": [
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"skymap_hash": "c8ae51b7eb26c6e27f43b0be8a706241",
"classification": {},
"skymap_version": 0,
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"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-06-30T23:34:42Z",
"superevent_id": "S230630bo",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-30T23:34:42.956800Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-30T23:34:42.956828Z",
"modified": "2023-06-30T23:34:42.964168Z",
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},
{
"id": 781,
"topic": "igwn.gwalert",
"uuid": "8c280093-77fc-48f2-9b7d-9a3bf31e39d9",
"title": "S230630bo - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
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"gracedb": "https://gracedb.ligo.org/superevents/S230630bo/view/"
},
"event": {
"far": 1.49768e-05,
"time": "2023-06-30T23:33:05.788Z",
"group": "Burst",
"search": "AllSky",
"area_50": 686.5422017827347,
"area_90": 2334.0756273322554,
"duration": 0.062085,
"pipeline": "CWB",
"properties": {},
"instruments": [
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],
"significant": false,
"skymap_hash": "c8ae51b7eb26c6e27f43b0be8a706241",
"classification": {},
"skymap_version": 0,
"central_frequency": 619.55249
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-06-30T23:39:18Z",
"superevent_id": "S230630bo",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-30T23:39:19.460296Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-30T23:39:19.460322Z",
"modified": "2023-06-30T23:39:19.466242Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 782,
"topic": "hermes.message",
"uuid": "e592fccd-291b-48c3-85b7-fc65244171df",
"title": "INTEGRAL follow-up of S230630bo",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230630bo at 2023-06-30T23:33:05.000\n\n\nSPI-ACS excesses:\nat T0+15.16 FAP = 0.164\nat T0+-38.64 FAP = 0.668\nat T0+17.11 FAP = 0.723\nat T0+-48.49 FAP = 0.859\n\n\n\n\nnext break in data in 14 hr: 2023-07-01T13:56:31, for 9.3 hr",
"published": "2023-06-30T23:45:30.107052Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-06-30T23:45:30.107071Z",
"modified": "2023-06-30T23:45:30.113005Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 783,
"topic": "igwn.gwalert",
"uuid": "7c22fc7e-7712-46cd-9008-746d294d9daf",
"title": "S230630bq - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230630bq/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230630bq/view/"
},
"event": {
"far": 2.661108572170836e-09,
"time": "2023-06-30T23:45:32.397Z",
"group": "CBC",
"search": "AllSky",
"area_50": 420.11892528101475,
"area_90": 1637.2520783956838,
"duration": null,
"pipeline": "gstlal",
"properties": {
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},
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"significant": true,
"skymap_hash": "1aff497bbf14120b4ab6f87b4f9ded69",
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"BNS": 1.0028877659965554e-20,
"NSBH": 0.0008201324864209535,
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"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-06-30T23:46:06Z",
"superevent_id": "S230630bq",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-30T23:46:08.189873Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-30T23:46:08.189899Z",
"modified": "2023-06-30T23:46:08.195979Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 784,
"topic": "igwn.gwalert",
"uuid": "06878535-4ff5-4434-95ed-97b0b61b1a19",
"title": "S230630bq - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230630bq/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S230630bq/view/"
},
"event": {
"far": 7.732377e-09,
"time": "2023-06-30T23:45:32.407Z",
"group": "CBC",
"search": "AllSky",
"area_50": 496.86183796501086,
"area_90": 1974.8579471818757,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.08114227694427675,
"HasRemnant": 0.0
},
"instruments": [
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"L1"
],
"significant": true,
"skymap_hash": "244ab487b731f0aadd72403d9e1ab07a",
"classification": {
"BBH": 0.968061153,
"BNS": 0.0,
"NSBH": 0.000828221,
"Terrestrial": 0.031110641
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-06-30T23:50:43Z",
"superevent_id": "S230630bq",
"external_coinc": null
},
"message_text": "",
"published": "2023-06-30T23:50:44.693954Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-06-30T23:50:44.693980Z",
"modified": "2023-06-30T23:50:44.699848Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 785,
"topic": "gcn.circular",
"uuid": "9f380e7d-57cc-4958-b2e0-b8627fb82c1e",
"title": "IPN triangulation of GRB 230625B (ultra-long)",
"submitter": "Hop gcn.circular",
"authors": "Dmitry Svinkin at Ioffe Institute <svinkin@mail.ioffe.ru>",
"data": {
"date": "23/06/30 23:54:32 GMT",
"from": "Dmitry Svinkin at Ioffe Institute <svinkin@mail.ioffe.ru>",
"title": "GCN CIRCULAR",
"number": "34126",
"subject": "IPN triangulation of GRB 230625B (ultra-long)"
},
"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. Ridnaia, 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\nE. Burns on behalf of the IPN,\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 ultra-long GRB 230625B\n(Swift-BAT/GUANO detection: Ronchini et al., GCN Circ. 34084;\nAstroSat-CZTI detection: Navaneeth et al., GCN Circ. 34119;\nCALET-GBM detection: Asaoka et al., GCN Circ. 34123)\nwas detected by Konus-Wind, INTEGRAL (SPI-ACS), AstroSat (CZTI),\nCALET (GBM triggers 1371713313 and 1371714158), Swift (BAT),\nand Mars-Odyssey (HEND) at about 26925 s UT (07:28:45).\nThe burst was outside the coded field of view of the BAT.\n\nAs observed by Konus-Wind, the burst light curve shows a multi-peaked structure with the total duration of ~1100 s.\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 348.047 +27.385\n Corners:\n 359.451 +18.898\n 359.209 +18.406\n 324.407 +33.245\n 323.504 +33.777\n -------------------------------\nThe error box area is 18.4 sq. deg, and its maximum\ndimension is 35.3 deg (the minimum one is 31.4 arcmin).\nThe Sun distance was about 86 deg.\n\nThis box may be improved.\n\nA triangulation map and HEALPix FITS file are posted at\nhttp://www.ioffe.ru/LEA/GRBs/GRB230625_T26937/IPN\n\nThe Konus-Wind light curve of this GRB is available at\nhttp://www.ioffe.ru/LEA/GRBs/GRB230625_T26937\n\nA detailed analysis of the Konus-Wind time history and spectrum will be given in a forthcoming GCN Circular.\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg4MTY5Mjc4LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.3IEeXPo5KCGGpzKm1h52Y3QheuWeFRTX5KNwF6NqbIA\n\n",
"published": "2023-06-30T23:54:44.185281Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-06-30T23:54:44.185301Z",
"modified": "2023-06-30T23:54:44.191590Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 786,
"topic": "hermes.message",
"uuid": "0e38efd7-ac75-4ee7-8076-f757616de426",
"title": "INTEGRAL follow-up of S230630bq",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230630bq at 2023-06-30T23:45:32.000\n\n\nSPI-ACS excesses:\nat T0+-0.22 FAP = 0.006\nat T0+31.11 FAP = 0.114\nat T0+-140.87 FAP = 0.352\nat T0+26.33 FAP = 0.873\n\n\n\n\nnext break in data in 14 hr: 2023-07-01T13:56:31, for 9.3 hr",
"published": "2023-06-30T23:57:46.718668Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-06-30T23:57:46.718686Z",
"modified": "2023-06-30T23:57:46.724876Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 787,
"topic": "igwn.gwalert",
"uuid": "3bc33638-a680-4ce2-8698-3c28a58a0218",
"title": "S230630bq - INITIAL",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230630bq/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S230630bq/view/"
},
"event": {
"far": 7.732377e-09,
"time": "2023-06-30T23:45:32.407Z",
"group": "CBC",
"search": "AllSky",
"area_50": 496.86183796501086,
"area_90": 1974.8579471818757,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.08114227694427675,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": true,
"skymap_hash": "244ab487b731f0aadd72403d9e1ab07a",
"classification": {
"BBH": 0.968061153,
"BNS": 0.0,
"NSBH": 0.000828221,
"Terrestrial": 0.031110641
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "INITIAL",
"sequence_num": 3,
"time_created": "2023-07-01T00:21:56Z",
"superevent_id": "S230630bq",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-01T00:21:57.288083Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-01T00:21:57.288109Z",
"modified": "2023-07-01T00:21:57.294012Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 788,
"topic": "gcn.circular",
"uuid": "133fc46e-dade-49f8-9a61-655caa013c25",
"title": "LIGO/Virgo/KAGRA S230630bq: Identification of a GW compact binary merger candidate",
"submitter": "Hop gcn.circular",
"authors": "David Hui at Chungnam National University <huichungyue@gmail.com>",
"data": {
"date": "23/07/01 00:55:44 GMT",
"from": "David Hui at Chungnam National University <huichungyue@gmail.com>",
"title": "GCN CIRCULAR",
"number": "34127",
"subject": "LIGO/Virgo/KAGRA S230630bq: Identification of a GW compact binary merger candidate"
},
"message_text": "The LIGO Scientific Collaboration, the Virgo Collaboration, and the\nKAGRA Collaboration report:\n\nWe identified the compact binary merger candidate S230630bq during\nreal-time processing of data from LIGO Hanford Observatory (H1) and\nLIGO Livingston Observatory (L1) at 2023-06-30 23:45:32.407 UTC (GPS\ntime: 1372203950.407). The candidate was found by the MBTA [1], GstLAL\n[2], PyCBC Live [3], and SPIIR [4] analysis pipelines.\n\nS230630bq is an event of interest because its false alarm rate, as\nestimated by the online analysis, is 7.7e-09 Hz, or about one in 4\nyears. The event's properties can be found at this URL:\n\nhttps://gracedb.ligo.org/superevents/S230630bq\n\nThe classification of the GW signal, in order of descending\nprobability, is BBH (97%), Terrestrial (3%), NSBH (<1%), or BNS (<1%).\n\nAssuming the candidate is astrophysical in origin, the probability\nthat the lighter compact object is consistent with a neutron star mass\n(HasNS) is <1%. [5] Using the masses and spins inferred from the\nsignal, the probability of matter outside the final compact object\n(HasRemnant) is <1%. [5] Both HasNS and HasRemnant consider the\nsupport of several neutron star equations of state. The probability\nthat either of the binary components lies between 3 and 5 solar masses\n(HasMassgap) is 8%.\n\nTwo sky maps are available at this time and can be retrieved from the\nGraceDB event page:\n * bayestar.multiorder.fits,1, an initial localization generated by\nBAYESTAR [6], distributed via GCN notice about 33 seconds after the\ncandidate event time.\n * bayestar.multiorder.fits,2, an initial localization generated by\nBAYESTAR [6], distributed via GCN notice about 5 minutes after the\ncandidate event time.\n\nThe preferred sky map at this time is bayestar.multiorder.fits,2. For\nthe bayestar.multiorder.fits,2 sky map, the 90% credible region is\n1976 deg2. Marginalized over the whole sky, the a posteriori\nluminosity distance estimate is 1150 +/- 360 Mpc (a posteriori mean\n+/- standard deviation).\n\nFor further information about analysis methodology and the contents of\nthis alert, refer to the LIGO/Virgo/KAGRA Public Alerts User Guide\nhttps://emfollow.docs.ligo.org/userguide/.\n\n [1] Aubin et al. CQG 38, 095004 (2021)\n [2] Tsukada et al. arXiv:2305.06286 (2023) and Ewing et al.\narXiv:2305.05625 (2023)\n [3] Dal Canton et al. ApJ 923, 254 (2021)\n [4] Chu et al. PRD 105, 024023 (2022)\n [5] Chatterjee et al. ApJ 896, 54 (2020)\n [6] Singer & Price PRD 93, 024013 (2016)\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg4MTcyOTQ5LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.Goh95sjdLZhivd1uguZn-QS3gWtDoEvEOGqAqjfpir0\n\n",
"published": "2023-07-01T00:55:54.732329Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-01T00:55:54.732349Z",
"modified": "2023-07-01T00:55:54.738553Z",
"nonlocalizedevents": [
{
"event_id": "S230630b"
}
],
"targets": []
},
{
"id": 789,
"topic": "gcn.circular",
"uuid": "d33aaa2f-27f5-4a88-bd32-d706b61f7d27",
"title": "LIGO/Virgo/KAGRA S230627c: Upper limits from Swift/BAT-GUANO",
"submitter": "Hop gcn.circular",
"authors": "Samuele Ronchini at PSU <sjs8171@psu.edu>",
"data": {
"date": "23/07/01 03:37:08 GMT",
"from": "Samuele Ronchini at PSU <sjs8171@psu.edu>",
"title": "GCN CIRCULAR",
"number": "34128",
"subject": "LIGO/Virgo/KAGRA S230627c: Upper limits from Swift/BAT-GUANO"
},
"message_text": "Gayathri Raman (PSU), Samuele Ronchini (PSU), Aaron Tohuvavohu (U Toronto), James DeLaunay (U Alabama), Jamie A. Kennea (PSU), Tyler Parsotan (NASA GSFC) report:\n\nSwift/BAT was observing 99.2% of the GW localization probability (Bilby.multiorder.fits,0) at merger time.\nThe entirety of the GW 90% credible region is contained inside the coded FoV.\n\nThe LVK 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\nUsing the NITRATES analysis (DeLaunay + Tohuvavohu 2022, ApJ, 941, 169), we searched for emission on 8 timescales from 0.128s to 16.384s in the interval [-20,+20] seconds around the merger time. We find no evidence for a signal, and derive the following upper limits.\n\nWe quote the 5-sigma flux upper limits in the 15-350 keV band, weighted over the GW localization, for four spectral templates (soft, normal, and hard GRB-like templates described in [arXiv:1612.02395], and spectral shape from GRB170817A [arXiv:1710.05446]) and for four time bins.\nIn units of 10^-8 erg/s/cm^2:\n\nBin duration (s) |\thard\t\tnormal\t\tsoft\t\tGRB 170817A\n----------------------------------------------------\n0.256\t\t\t |\t7.0\t\t7.7\t\t4.9\t\t8.3\n1.024\t\t\t |\t3.6\t\t4.0\t\t2.5\t\t4.2\n4.096\t\t\t |\t1.9\t\t2.2\t\t1.4\t\t2.3\n16.384\t\t \t |\t1.2\t\t1.3\t\t0.8\t\t1.4\n\nFor a median distance of 291 Mpc, we derive luminosity upper limits (in units of 10^47 erg/s) as follows:\n\nBin duration (s) |\thard\t\tnormal\t\tsoft\t\tGRB 170817A\n-----------------------------------------------------\n0.256\t\t\t |\t7.1\t\t7.8\t\t5.0\t\t8.4\n1.024\t\t\t |\t3.6\t\t4.0\t\t2.5\t\t4.3\n4.096\t\t\t |\t2.0\t\t2.2\t\t1.4\t\t2.3\n16.384\t\t\t |\t1.2\t\t1.3\t\t0.8\t\t1.4\n\nThe upper limits as function of sky position are plotted here, alongside the GW localization:\nhttps://doi.org/10.5281/zenodo.8102958\n\nThe corresponding fits file can be found here:\nhttps://doi.org/10.5281/zenodo.8102951\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\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjg4MTgyNjM0LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.nBL1NJteALf3CdkfUpaSrLBOfaRYadcFScsPX9QImy0\n\n",
"published": "2023-07-01T03:37:20.375911Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-01T03:37:20.375946Z",
"modified": "2023-07-01T03:37:20.382423Z",
"nonlocalizedevents": [
{
"event_id": "S230627c"
}
],
"targets": []
},
{
"id": 790,
"topic": "igwn.gwalert",
"uuid": "0ab8e385-0050-4c16-a7b2-ed3d7daa551e",
"title": "S230701k - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230701k/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230701k/view/"
},
"event": {
"far": 1.699751373962499e-05,
"time": "2023-07-01T03:48:00.537Z",
"group": "CBC",
"search": "AllSky",
"area_50": 896.3656130855264,
"area_90": 3096.154257183995,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.2913514006032769,
"HasRemnant": 0.7114629178904378
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "a3459970881276fb1beadb2c5d11b36f",
"classification": {
"BBH": 6.0943925368395865e-05,
"BNS": 0.002414904268207442,
"NSBH": 0.03782950178658724,
"Terrestrial": 0.9596946500198369
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-07-01T03:48:23Z",
"superevent_id": "S230701k",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-01T03:48:24.441092Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-01T03:48:24.441116Z",
"modified": "2023-07-01T03:48:24.447205Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 791,
"topic": "igwn.gwalert",
"uuid": "172606a1-4205-4639-af5e-a35ba97d8d8e",
"title": "S230701k - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230701k/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230701k/view/"
},
"event": {
"far": 1.699751373962499e-05,
"time": "2023-07-01T03:48:00.537Z",
"group": "CBC",
"search": "AllSky",
"area_50": 896.3656130855264,
"area_90": 3096.154257183995,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.2913514006032769,
"HasRemnant": 0.7114629178904378
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "a3459970881276fb1beadb2c5d11b36f",
"classification": {
"BBH": 6.0943925368395865e-05,
"BNS": 0.002414904268207442,
"NSBH": 0.03782950178658724,
"Terrestrial": 0.9596946500198369
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-01T03:52:57Z",
"superevent_id": "S230701k",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-01T03:52:58.982641Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-01T03:52:58.982666Z",
"modified": "2023-07-01T03:52:58.988888Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 792,
"topic": "hermes.message",
"uuid": "e5ac4803-5e7b-46ec-a554-c55ca86a899e",
"title": "INTEGRAL follow-up of S230701k",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230701k at 2023-07-01T03:48:00.000\n\n\nSPI-ACS excesses:\nat T0+-11.02 FAP = 0.233\nat T0+21.03 FAP = 0.354\nat T0+23.08 FAP = 0.415\nat T0+-93.87 FAP = 0.465\nat T0+-18.6 FAP = 0.552\nat T0+15.85 FAP = 0.571\nat T0+29.98 FAP = 0.605\nat T0+-65.52 FAP = 0.639\nat T0+40.78 FAP = 0.773\nat T0+-129.97 FAP = 0.959\n\n\n\n\nnext break in data in 10 hr: 2023-07-01T13:56:31, for 9.3 hr",
"published": "2023-07-01T04:00:12.745388Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-07-01T04:00:12.745406Z",
"modified": "2023-07-01T04:00:12.751494Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 793,
"topic": "igwn.gwalert",
"uuid": "5137934b-cd83-4fe0-aae7-e0ae273ae2fb",
"title": "S230701t - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230701t/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230701t/view/"
},
"event": {
"far": 1.66596e-05,
"time": "2023-07-01T05:09:03.672Z",
"group": "Burst",
"search": "BBH",
"area_50": 527.0764091926128,
"area_90": 1984.9294709244098,
"duration": 0.005195,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "722d60e547d399c2cfbcee2a33db2181",
"classification": {},
"skymap_version": 0,
"central_frequency": 143.413391
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-07-01T05:10:14Z",
"superevent_id": "S230701t",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-01T05:10:15.030420Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-01T05:10:15.030442Z",
"modified": "2023-07-01T05:10:15.036533Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 794,
"topic": "igwn.gwalert",
"uuid": "988e586e-af31-4a65-a2ed-466f72a9e0ee",
"title": "S230701t - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230701t/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230701t/view/"
},
"event": {
"far": 1.66596e-05,
"time": "2023-07-01T05:09:03.672Z",
"group": "Burst",
"search": "BBH",
"area_50": 527.0764091926128,
"area_90": 1984.9294709244098,
"duration": 0.005195,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "722d60e547d399c2cfbcee2a33db2181",
"classification": {},
"skymap_version": 0,
"central_frequency": 143.413391
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-01T05:14:48Z",
"superevent_id": "S230701t",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-01T05:14:49.541331Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-01T05:14:49.541354Z",
"modified": "2023-07-01T05:14:49.547122Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 795,
"topic": "hermes.message",
"uuid": "23e1784a-f40f-4bca-bb4e-4c2bda342368",
"title": "INTEGRAL follow-up of S230701t",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230701t at 2023-07-01T05:09:03.000\n\n\nSPI-ACS excesses:\nat T0+85.08 FAP = 0.099\nat T0+-6.14 FAP = 0.25\nat T0+-273.24 FAP = 0.544\nat T0+183.93 FAP = 0.555\nat T0+43.03 FAP = 0.785\nat T0+-49.74 FAP = 0.825\nat T0+-44.99 FAP = 0.866\n\n\n\n\nnext break in data in 8.8 hr: 2023-07-01T13:56:31, for 9.3 hr",
"published": "2023-07-01T05:21:25.205397Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-07-01T05:21:25.205418Z",
"modified": "2023-07-01T05:21:25.211277Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 796,
"topic": "igwn.gwalert",
"uuid": "ea578db4-434d-4fa7-9289-d79320b83a4c",
"title": "S230701w - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230701w/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230701w/view/"
},
"event": {
"far": 1.086404872972796e-05,
"time": "2023-07-01T05:58:29.575Z",
"group": "CBC",
"search": "AllSky",
"area_50": 718.4353603007589,
"area_90": 2393.6654761422483,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.23825404946282447,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "d8d681de888ba94fe4d231976aefdf1c",
"classification": {
"BBH": 0.0,
"BNS": 0.00011481337921467573,
"NSBH": 0.0017082077285705155,
"Terrestrial": 0.9981769788922148
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-07-01T05:58:53Z",
"superevent_id": "S230701w",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-01T05:58:54.638010Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-01T05:58:54.638036Z",
"modified": "2023-07-01T05:58:54.645283Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 797,
"topic": "igwn.gwalert",
"uuid": "0b110d7b-f1c6-45b3-9d61-7b46ee368880",
"title": "S230701w - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230701w/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230701w/view/"
},
"event": {
"far": 1.086404872972796e-05,
"time": "2023-07-01T05:58:29.575Z",
"group": "CBC",
"search": "AllSky",
"area_50": 718.4353603007589,
"area_90": 2393.6654761422483,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.23825404946282447,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "d8d681de888ba94fe4d231976aefdf1c",
"classification": {
"BBH": 0.0,
"BNS": 0.00011481337921467573,
"NSBH": 0.0017082077285705155,
"Terrestrial": 0.9981769788922148
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-01T06:03:28Z",
"superevent_id": "S230701w",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-01T06:03:29.285263Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-01T06:03:29.285289Z",
"modified": "2023-07-01T06:03:29.290931Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 798,
"topic": "hermes.message",
"uuid": "53311bbd-2394-423d-bb9f-df2e9f3c339c",
"title": "INTEGRAL follow-up of S230701w",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230701w at 2023-07-01T05:58:29.000\n\n\nSPI-ACS excesses:\nat T0+0.03 FAP = 0.002\nat T0+1.61 FAP = 0.026\nat T0+-6.39 FAP = 0.192\nat T0+7.18 FAP = 0.519\nat T0+171.78 FAP = 0.716\nat T0+-33.82 FAP = 0.851\nat T0+-270.32 FAP = 0.896\nat T0+-149.27 FAP = 0.901\n\n\n\n\nnext break in data in 8 hr: 2023-07-01T13:56:31, for 9.3 hr",
"published": "2023-07-01T06:13:41.370398Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-07-01T06:13:41.370417Z",
"modified": "2023-07-01T06:13:41.376158Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 799,
"topic": "igwn.gwalert",
"uuid": "24a57e89-976a-4ac1-87d3-3e301f3d08e0",
"title": "S230701z - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230701z/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230701z/view/"
},
"event": {
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"time": "2023-07-01T06:36:54.597Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1294.820271149528,
"area_90": 4198.146813346258,
"duration": null,
"pipeline": "spiir",
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},
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],
"significant": false,
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},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-07-01T06:37:18Z",
"superevent_id": "S230701z",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-01T06:37:19.998220Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-01T06:37:19.998244Z",
"modified": "2023-07-01T06:37:20.016543Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 800,
"topic": "igwn.gwalert",
"uuid": "bd8a78fb-d5bb-432f-b8d8-72c92c2f2f83",
"title": "S230701z - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"gracedb": "https://gracedb.ligo.org/superevents/S230701z/view/"
},
"event": {
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"time": "2023-07-01T06:36:54.597Z",
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},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-01T06:41:58Z",
"superevent_id": "S230701z",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-01T06:41:59.396033Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-01T06:41:59.396057Z",
"modified": "2023-07-01T06:41:59.402597Z",
"nonlocalizedevents": [],
"targets": []
}
]
}
