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"subject": "Swift GRB230728.12: 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-SAAO robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in South Africa (South African Astronomical Observatory) was pointed to the Swift GRB230728.12 (trigger No 1181187,22h 54m 09.36s , +28d 09m 03.6s, R=0.05) errorbox 19 sec after notice time and 36 sec after trigger time at 2023-07-28 02:50:40 UT, with upper limit up to 17.2 mag. The observations began at zenith distance = 64 deg. The sun altitude is -33.9 deg.\n\nThe galactic latitude b = -28 deg., longitude l = 94 deg.\n\n\nReal time updated cover map and OT discovered available here:\nhttps://master.sai.msu.ru/site/master2/observ.php?id\"46027\n\nWe obtain a following upper limits.\n\nTmid-T0 | Site |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____|_______|______|________\n\n 42 | MASTER-SAAO | P/ | 10 | 16.3 |\n 42 | MASTER-SAAO | C | 10 | 17.2 |\n 61 | MASTER-SAAO | P/ | 10 | 16.4 |\n 61 | MASTER-SAAO | C | 10 | 17.2 |\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.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwNTEzMDA4LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.Leslw_2dyaGbhhkt1jBAT-z0v6tK-UmRoXK8oDkoEuI\n\n",
"published": "2023-07-28T02:56:53.559534Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-28T02:56:53.559552Z",
"modified": "2023-07-28T02:56:53.567418Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1594,
"topic": "gcn.circular",
"uuid": "b46e0810-9da9-42f4-90cb-c51547d2cf3e",
"title": "GRB 230728A: Swift detection of a burst",
"submitter": "Hop gcn.circular",
"authors": "David Palmer at LANL <palmer@lanl.gov>",
"data": {
"date": "23/07/28 03:07:03 GMT",
"from": "David Palmer at LANL <palmer@lanl.gov>",
"title": "GCN CIRCULAR",
"number": "34282",
"subject": "GRB 230728A: Swift detection of a burst"
},
"message_text": "\nC. Salvaggio (INAF-OAB), P. D'Avanzo (INAF-OAB), S. Laha (GSFC/UMBC),\nD. M. Palmer (LANL), T. M. Parsotan (GSFC/UMBC/CRESSTII) and\nM. H. Siegel (PSU) report on behalf of the Neil Gehrels Swift\nObservatory Team:\n\nAt 02:50:03 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated GRB 230728A (trigger\u001181187). Swift slewed immediately to the burst.\nThe BAT on-board calculated location is\nRA, Dec 343.539, +28.151 which is\n RA(J2000) = 22h 54m 09s\n Dec(J2000) = +28d 09' 03\"\nwith an uncertainty of 3 arcmin (radius, 90% containment, including\nsystematic uncertainty). Due to a telemetry gap, BAT lightcurve information\nis not immediately available.\n\nThe XRT began observing the field at 02:51:33.5 UT, 90.3 seconds after\nthe BAT trigger. Using promptly downlinked data we find a bright,\nuncatalogued X-ray source with an enhanced position: RA, Dec 343.51530,\n28.17470 which is equivalent to:\n RA(J2000) = 22h 54m 03.67s\n Dec(J2000) = +28d 10' 28.9\"\nwith an uncertainty of 1.9 arcseconds (radius, 90% containment). This\nlocation is 113 arcseconds from the BAT onboard position, within the\nBAT error circle. This position may be improved as more data are\nreceived; the latest position is available at\nhttps://www.swift.ac.uk/sper.\n\nA power-law fit to a spectrum formed from promptly downlinked event\ndata gives a column density in excess of the Galactic value (6.29 x\n10^20 cm^-2, Willingale et al. 2013), with an excess column of 7.2\n(+2.52/-2.21) x 10^21 cm^-2 (90% confidence).\n\nThe initial flux in the 2.5 s image was 7.13e-10 erg cm^-2 s^-1 (0.2-10\nkeV).\n\nUVOT took a finding chart exposure of 150 seconds with the White filter\nstarting 99 seconds after the BAT trigger. No credible afterglow candidate has\nbeen found in the initial data products. The 2.7'x2.7' sub-image covers 100% of\nthe XRT error circle. The typical 3-sigma upper limit has been about 19.6 mag.\nThe 8'x8' region for the list of sources generated on-board covers 100% of the\nXRT error circle. The list of sources is typically complete to about 18 mag. No\ncorrection has been made for the expected extinction corresponding to E(B-V) of\n0.079.\n\nBurst Advocate for this burst is C. Salvaggio (chiara.salvaggio AT inaf.it).\nPlease contact the BA by email if you require additional information\nregarding Swift followup of this burst. In extremely urgent cases, after\ntrying the Burst Advocate, you can contact the Swift PI by phone (see\nSwift TOO web site for information: http://www.swift.psu.edu/)\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwNTEzNjI5LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.-lfz_NxGF5o9452y8FwlWXkmMv2A9GVynJPKK0KuIIk\n\n",
"published": "2023-07-28T03:07:15.023829Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-28T03:07:15.023848Z",
"modified": "2023-07-28T03:07:15.030188Z",
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"targets": []
},
{
"id": 4235,
"topic": "igwn.gwalert",
"uuid": "4ee0aba6-91f9-4b2b-acc0-ae7d259e6f3f",
"title": "S231027bk - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"sequence_num": 1,
"time_created": "2023-10-27T20:06:07Z",
"superevent_id": "S231027bk",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-31T23:27:48.360754Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-31T23:27:48.360782Z",
"modified": "2023-10-31T23:27:48.366050Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1746,
"topic": "igwn.gwalert",
"uuid": "8b5194d3-1395-4396-aa27-d754c988090f",
"title": "S230801at - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
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"gracedb": "https://gracedb.ligo.org/superevents/S230801at/view/"
},
"event": {
"far": 5.38303e-06,
"time": "2023-08-01T23:58:25.059Z",
"group": "Burst",
"search": "BBH",
"area_50": 1048.2777628687475,
"area_90": 3820.4646730012314,
"duration": 0.007844,
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"sequence_num": 1,
"time_created": "2023-08-01T23:59:28Z",
"superevent_id": "S230801at",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-01T23:59:29.738726Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-01T23:59:29.738761Z",
"modified": "2023-08-01T23:59:29.745717Z",
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},
{
"id": 1595,
"topic": "igwn.gwalert",
"uuid": "2559409d-47df-45f3-bd5b-99c4195c8a1d",
"title": "S230728ac - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230728ac/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230728ac/view/"
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"event": {
"far": 1.881228159040418e-05,
"time": "2023-07-28T05:36:16.021Z",
"group": "CBC",
"search": "AllSky",
"area_50": 563.166035936693,
"area_90": 1865.749773304424,
"duration": null,
"pipeline": "gstlal",
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"skymap_hash": "cd5792b2d8c4ee47bc644bc9c07887dc",
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"BNS": 9.78238581709683e-16,
"NSBH": 6.434610322109553e-14,
"Terrestrial": 0.916650945859862
},
"skymap_version": 0,
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},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-07-28T05:36:40Z",
"superevent_id": "S230728ac",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-28T05:36:41.898421Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-28T05:36:41.898443Z",
"modified": "2023-07-28T05:36:41.906992Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1596,
"topic": "igwn.gwalert",
"uuid": "805e814c-dc2c-4e4c-a3aa-9c83979067c4",
"title": "S230728ac - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230728ac/files/bayestar.multiorder.fits,0",
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},
"event": {
"far": 1.881228159040418e-05,
"time": "2023-07-28T05:36:16.021Z",
"group": "CBC",
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"area_50": 563.166035936693,
"area_90": 1865.749773304424,
"duration": null,
"pipeline": "gstlal",
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},
"skymap_version": 0,
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"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-28T05:41:14Z",
"superevent_id": "S230728ac",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-28T05:41:16.459714Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-28T05:41:16.459735Z",
"modified": "2023-07-28T05:41:16.465873Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1597,
"topic": "igwn.gwalert",
"uuid": "811d4018-2928-4eb3-811f-5a681e5899c8",
"title": "S230728ak - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230728ak/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230728ak/view/"
},
"event": {
"far": 1.16606242954731e-05,
"time": "2023-07-28T06:34:36.693Z",
"group": "CBC",
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"area_90": 2519.5595229239234,
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},
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},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-07-28T06:35:01Z",
"superevent_id": "S230728ak",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-28T06:35:02.709618Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-28T06:35:02.709648Z",
"modified": "2023-07-28T06:35:02.714988Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1598,
"topic": "igwn.gwalert",
"uuid": "0ae80950-00a1-4d1f-bbbf-2e3dcedd16fb",
"title": "S230728ak - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
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"gracedb": "https://gracedb.ligo.org/superevents/S230728ak/view/"
},
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"time": "2023-07-28T06:34:36.693Z",
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"area_90": 2519.5595229239234,
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},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-28T06:39:35Z",
"superevent_id": "S230728ak",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-28T06:39:37.394816Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-28T06:39:37.394837Z",
"modified": "2023-07-28T06:39:37.400576Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 2503,
"topic": "igwn.gwalert",
"uuid": "d66f7f2e-c1cf-408b-92a7-147f02b6791b",
"title": "S230827u - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230827u/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230827u/view/"
},
"event": {
"far": 1.464217935794117e-05,
"time": "2023-08-27T07:12:54.194Z",
"group": "CBC",
"search": "AllSky",
"area_50": 699.1316064609022,
"area_90": 2527.9524593760348,
"duration": null,
"pipeline": "gstlal",
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"NSBH": 1.774906654581856e-13,
"Terrestrial": 0.8976044507366753
},
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},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-27T07:18:09Z",
"superevent_id": "S230827u",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-27T07:18:10.542768Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-27T07:18:10.542789Z",
"modified": "2023-08-27T07:18:10.546561Z",
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"targets": []
},
{
"id": 1607,
"topic": "gcn.circular",
"uuid": "24941020-9564-4202-987c-5df7c82c087c",
"title": "GRB 230728A: LCOGT Optical Upper Limit",
"submitter": "Hop gcn.circular",
"authors": "Robert Strausbaugh at University of Minnesota <rstrausb@umn.edu>",
"data": {
"date": "23/07/28 14:44:26 GMT",
"from": "Robert Strausbaugh at University of Minnesota <rstrausb@umn.edu>",
"title": "GCN CIRCULAR",
"number": "34289",
"subject": "GRB 230728A: LCOGT Optical Upper Limit"
},
"message_text": "R. Strausbaugh (University of Minnesota), A. Cucchiara (NASA) report on\nbehalf of a larger collaboration:\n\nWe observed the GRB 230728A (Salvaggio et al., GCN 34282) field with the\nLCOGT 1-meter Sinistro instrument at the Teide Observatory, Tenerife site,\non July 28, from 03:15 to 03:48 UT (corresponding to 0.42 to 0.97 hours\nfrom 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\nany source within the enhanced Swift-XRT error region (Evans et al., GCN\n34286) in either band, consistent with later optical upper limits (Xu et\nal., GCN 34285).\n\nThe following upper limits are calculated using the PanSTARRS catalog as\nreference:\n\nr > 23.3\ni > 22.8\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.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwNTU1NDcxLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.NWbSEn4l63Z_XVi-8KBZ7W8aTOizTMtqRQwRqeusv90\n\n",
"published": "2023-07-28T14:44:37.019137Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-28T14:44:37.019153Z",
"modified": "2023-07-28T14:44:37.022706Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 2929,
"topic": "hermes.message",
"uuid": "c5be3cff-fc43-4d1b-9d16-cc0a0483073f",
"title": "INTEGRAL follow-up of S230911e",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230911e at 2023-09-11T04:13:39.000\n\n\nSPI-ACS excesses:\nat T0+-78.15 FAP = 0.484\nat T0+233.65 FAP = 0.624\n\n\n\n\nnext break in data in 5.7 hr: 2023-09-11T09:53:07, for 9.3 hr",
"published": "2023-09-12T10:48:41.569428Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-09-12T10:48:41.569440Z",
"modified": "2023-09-12T10:48:41.578150Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 11690,
"topic": "lvk-users.beccatest",
"uuid": "78ec0d11-44d1-4649-8bf1-965e974692ef",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"L1"
],
"time": [
1400627100
],
"range": 157.32193458914702
},
"message_text": "",
"published": "2024-05-24T23:05:01.173095Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-24T23:05:01.173109Z",
"modified": "2024-05-24T23:05:01.173114Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 11691,
"topic": "lvk-users.beccatest",
"uuid": "22d064b3-9ca0-42c7-a47e-0cdda17fdb79",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"V1"
],
"time": [
1400627100
],
"range": 53.37911271128101
},
"message_text": "",
"published": "2024-05-24T23:05:10.194997Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-24T23:05:10.195010Z",
"modified": "2024-05-24T23:05:10.195015Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1599,
"topic": "gcn.circular",
"uuid": "ec2e4d3e-0582-4ab6-ba3a-a67ba5bb7593",
"title": "GRB 230727A: AstroSat CZTI detection",
"submitter": "Hop gcn.circular",
"authors": "Gaurav Waratkar at IIT Bombay <gauravwaratkar@iitb.ac.in>",
"data": {
"date": "23/07/28 06:47:03 GMT",
"from": "Gaurav Waratkar at IIT Bombay <gauravwaratkar@iitb.ac.in>",
"title": "GCN CIRCULAR",
"number": "34283",
"subject": "GRB 230727A: AstroSat CZTI detection"
},
"message_text": "B. Pari (IITB), 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 long GRB 230727A which was also detected by Fermi (Fermi GBM Team, GCN Circ. 34275) and Swift/BAT-GUANO (DeLaunay et al., GCN Circ. 34280).\n\nThe source was clearly detected in the 20-200 keV energy range. The light curve peaks at 2023-07-27 11:03:09.45 UTC. The measured peak count rate associated with the burst is 709.2 (+211.2, -56.0) counts/s above the background in the combined data of all quadrants, with a total of 1916 (+278, -290) counts. The local mean background count rate was 522.1 (+5.0, -7.7) counts/s. Using cumulative rates, we measure a T90 of 11.8 (+2.5, -1.6) 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 2023-07-27 11:03:08.85 UTC. The measured peak count rate associated with the burst is 343.3 (+76.9, -79.7) counts/s above the background in the combined data of all quadrants, with a total of 1231 (+419, -444) counts. The local mean background count rate was 1992.2 (+5.8, -7.1) counts/s. We measure a T90 of 11.3 (+3.7, -5.1) s from the cumulative Veto light curve.\n\nCZTI is built by a TIFR-led consortium of institutes across India, including VSSC, URSC, IUCAA, SAC, and PRL. The Indian Space Research Organisation funded, managed, and facilitated the project.\n\nCZTI GRB detections are reported regularly on the payload site at:\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.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwNTI2ODI5LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.EGMacukMsxfuBUYUp6G7vweorIbcrsmDvvg6YBhAFKg\n\n",
"published": "2023-07-28T06:47:15.369663Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-28T06:47:15.369688Z",
"modified": "2023-07-28T06:47:15.374770Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1600,
"topic": "igwn.gwalert",
"uuid": "c0bf6b34-c0e8-473b-b01c-90704ff2f384",
"title": "S230728ap - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230728ap/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230728ap/view/"
},
"event": {
"far": 1.025821224223146e-07,
"time": "2023-07-28T08:36:28.884Z",
"group": "CBC",
"search": "AllSky",
"area_50": 593.1707837529923,
"area_90": 3494.818738659299,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "8302f29820aaa7df1e5352238f785763",
"classification": {
"BBH": 0.9402063109317683,
"BNS": 1.0260122836667803e-38,
"NSBH": 1.9387341332654792e-32,
"Terrestrial": 0.05979368906823168
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-07-28T08:36:55Z",
"superevent_id": "S230728ap",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-28T08:36:56.510851Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-28T08:36:56.510875Z",
"modified": "2023-07-28T08:36:56.517627Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1601,
"topic": "igwn.gwalert",
"uuid": "db0b14f7-9407-464d-9dc1-35b158aa7037",
"title": "S230728ap - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230728ap/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230728ap/view/"
},
"event": {
"far": 1.025821224223146e-07,
"time": "2023-07-28T08:36:28.884Z",
"group": "CBC",
"search": "AllSky",
"area_50": 593.1707837529923,
"area_90": 3494.818738659299,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "8302f29820aaa7df1e5352238f785763",
"classification": {
"BBH": 0.9402063109317683,
"BNS": 1.0260122836667803e-38,
"NSBH": 1.9387341332654792e-32,
"Terrestrial": 0.05979368906823168
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-28T08:41:30Z",
"superevent_id": "S230728ap",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-28T08:41:31.231541Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-28T08:41:31.231563Z",
"modified": "2023-07-28T08:41:31.236532Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1602,
"topic": "gcn.circular",
"uuid": "85772df0-a7ac-4951-96e0-5095fb76ef2e",
"title": "IceCube-230724A: No counterparts from the Zwicky Transient Facility",
"submitter": "Hop gcn.circular",
"authors": "Sven Weimann at Ruhr University Bochum <swei@astro.rub.de>",
"data": {
"date": "23/07/28 09:13:14 GMT",
"from": "Sven Weimann at Ruhr University Bochum <swei@astro.rub.de>",
"title": "GCN CIRCULAR",
"number": "34284",
"subject": "IceCube-230724A: No counterparts from the Zwicky Transient Facility"
},
"message_text": "Sven Weimann (Ruhr University Bochum), Simeon Reusch (DESY), Jannis Necker (DESY), Robert Stein (Caltech) and Anna Franckowiak (DESY/Ruhr University Bochum) report:\n\nOn behalf of the Zwicky Transient Facility (ZTF) and Global Relay of Observatories Watching Transients Happen (GROWTH) collaborations:\n\nAs part of the ZTF neutrino follow up program (Stein et al. 2022), we observed the localization region of the neutrino event IceCube-230724A (Santander et. al, GCN 34265) with the Palomar 48-inch telescope, equipped with the 47 square degree ZTF camera (Bellm et al. 2019, Graham et al. 2019). We started observations in the g- and r-band beginning at 2023-07-24 10:12 UTC, approximately 8.4 hours after event time. We covered 100.0% (0.5 sq deg) of the reported localization region. This estimate accounts for chip gaps. Each exposure was 300s with a typical depth of 21.0 mag.\n\nThe images were processed in real-time through the ZTF reduction and image subtraction pipelines at IPAC to search for potential counterparts (Masci et al. 2019). AMPEL (Nordin et al. 2019, Stein et al. 2021) was used to search the alerts database for candidates. We reject stellar sources (Tachibana and Miller 2018) and moving objects, and apply machine learning algorithms (Mahabal et al. 2019).\n\nNo candidate counterparts were detected.\n\nAdditional observations are planned as part of our standard neutrino follow-up procedure, and any candidates will be reported.\n\nZTF and GROWTH are worldwide collaborations comprising Caltech, USA; IPAC, USA; WIS, Israel; OKC, Sweden; JSI/UMd, USA; DESY, Germany; TANGO, Taiwan; UW Milwaukee, USA; LANL, USA; TCD, Ireland; IN2P3, France.\n\nGROWTH acknowledges generous support of the NSF under PIRE Grant No 1545949.\nAlert distribution service provided by DIRAC@UW (Patterson et al. 2019).\nAlert database searches are done by AMPEL (Nordin et al. 2019).\nAlert filtering is performed with the nuztf package (Stein et al. 2021, https://github.com/desy-multimessenger/nuztf).\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwNTM1NjAwLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.wyksMoxQShnRFWVs_aPxFgwjb8oJGQcQ6P4gU7hfiyo\n\n",
"published": "2023-07-28T09:13:25.226023Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-28T09:13:25.226042Z",
"modified": "2023-07-28T09:13:25.232200Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1748,
"topic": "hermes.message",
"uuid": "a6a4bc57-87d2-4ae3-98ff-04c60a3e540a",
"title": "INTEGRAL follow-up of S230729w",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230729w at 2023-07-29T07:53:16.000\n\n\nSPI-ACS excesses:\nat T0+43.82 FAP = 0.292\n\n\n\n\nnext break in data in 36 hr: 2023-07-30T20:18:34, for 9.2 hr",
"published": "2023-08-02T00:11:27.316650Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-08-02T00:11:27.316670Z",
"modified": "2023-08-02T00:11:27.322937Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1749,
"topic": "hermes.message",
"uuid": "6656d82b-1f96-49bc-8d17-10e80841ffba",
"title": "INTEGRAL follow-up of S230729bc",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230729bc at 2023-07-29T17:11:55.000\n\n\nSPI-ACS excesses:\nat T0+83.26 FAP = 0.14\nat T0+11.56 FAP = 0.375\nat T0+185.56 FAP = 0.414\nat T0+-35.89 FAP = 0.502\nat T0+-11.69 FAP = 0.566\nat T0+137.13 FAP = 0.65\nat T0+5.38 FAP = 0.692\nat T0+185.66 FAP = 0.866\nat T0+107.13 FAP = 0.931\n\n\n\n\nnext break in data in 27 hr: 2023-07-30T20:18:34, for 9.2 hr",
"published": "2023-08-02T00:27:27.274054Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-08-02T00:27:27.274079Z",
"modified": "2023-08-02T00:27:27.280875Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1750,
"topic": "hermes.message",
"uuid": "f1c34f76-604e-47fe-b7db-adcc011de08e",
"title": "INTEGRAL follow-up of S230729t",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230729t at 2023-07-29T06:54:38.000\n\n\nSPI-ACS excesses:\nat T0+166.06 FAP = 0.928\n\n\n\n\nnext break in data in 37 hr: 2023-07-30T20:18:34, for 9.2 hr",
"published": "2023-08-02T01:40:38.449910Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-08-02T01:40:38.449929Z",
"modified": "2023-08-02T01:40:38.458231Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1751,
"topic": "hermes.message",
"uuid": "5defbfda-987f-47f7-b0b3-7f904ef7b2f0",
"title": "INTEGRAL follow-up of S230729z",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230729z at 2023-07-29T08:23:17.000\n\n\nSPI-ACS excesses:\n\n\n\n\nnext break in data in 36 hr: 2023-07-30T20:18:34, for 9.2 hr",
"published": "2023-08-02T01:55:43.545455Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-08-02T01:55:43.545472Z",
"modified": "2023-08-02T01:55:43.553482Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1752,
"topic": "hermes.message",
"uuid": "2fcaeaf7-76e6-4999-a664-c8b78af3fe93",
"title": "INTEGRAL follow-up of S230731ag",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230731ag at 2023-07-31T10:16:01.000\n\n\nSPI-ACS excesses:\nat T0+-76.5 FAP = 0.091\nat T0+12.07 FAP = 0.282\nat T0+-22.08 FAP = 0.337\nat T0+5.75 FAP = 0.459\nat T0+-13.5 FAP = 0.472\nat T0+111.92 FAP = 0.996\n\n\n\n\nnext break in data in 50 hr: 2023-08-02T12:11:10, for 9.2 hr",
"published": "2023-08-02T02:19:12.408706Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-08-02T02:19:12.408732Z",
"modified": "2023-08-02T02:19:12.417718Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1753,
"topic": "gcn.circular",
"uuid": "f434b956-1257-4767-a33e-356196661330",
"title": "LIGO/Virgo/KAGRA S230731an: Upper limits from Swift/BAT-GUANO",
"submitter": "Hop gcn.circular",
"authors": "Samuele Ronchini at PSU <sjs8171@psu.edu>",
"data": {
"date": "23/08/02 02:20:05 GMT",
"from": "Samuele Ronchini at PSU <sjs8171@psu.edu>",
"title": "GCN CIRCULAR",
"number": "34310",
"subject": "LIGO/Virgo/KAGRA S230731an: Upper limits from Swift/BAT-GUANO"
},
"message_text": "Samuele Ronchini (PSU), Gayathri Raman (PSU), Aaron Tohuvavohu (U Toronto), James DeLaunay (U Alabama), Jamie A. Kennea (PSU), Tyler Parsotan (NASA GSFC) report:\n\nSwift/BAT was observing 64.47 % of the GW localization probability (bayestar.multiorder.fits) at merger time. A fraction 5.72 % of the GW localization posterior is contained inside the BAT 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^-7 erg/s/cm^2:\n\ntime_bin (s) soft normal hard GRB170817\n-------------------------------\n0.256 22.8 15.3 13.6 17.1\n1.024 11.6 7.8 6.9 8.7\n4.096 6.2 4.2 3.7 4.6\n16.384 3.8 2.6 2.3 2.9\n\n\nThe upper limits as function of sky position are plotted here, alongside the GW localization:\nhttps://doi.org/10.5281/zenodo.8206758\nThe solid and dashed lines indicate the 90% and 50% GW contour levels, respectively.\n\nThe corresponding fits file can be found here:\nhttps://doi.org/10.5281/zenodo.8206771\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.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwOTQyODEwLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.ThPAUTIe6mbowNBb7K5zgSINQ61RPEb8_8wiMSvsBFk\n\n",
"published": "2023-08-02T02:20:16.502037Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-02T02:20:16.502054Z",
"modified": "2023-08-02T02:20:16.509006Z",
"nonlocalizedevents": [
{
"event_id": "S230731a"
}
],
"targets": []
},
{
"id": 11692,
"topic": "lvk-users.beccatest",
"uuid": "10cdde3e-f02e-4a5d-9931-33ca553ec23b",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"L1"
],
"time": [
1400627200
],
"range": 157.4694403496975
},
"message_text": "",
"published": "2024-05-24T23:06:40.349924Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-24T23:06:40.349938Z",
"modified": "2024-05-24T23:06:40.349944Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 11693,
"topic": "lvk-users.beccatest",
"uuid": "3b4b8ec1-4261-4c92-92a5-8080249ad860",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"V1"
],
"time": [
1400627200
],
"range": 53.51353720454457
},
"message_text": "",
"published": "2024-05-24T23:06:46.370328Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-24T23:06:46.370356Z",
"modified": "2024-05-24T23:06:46.370367Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 11694,
"topic": "lvk-users.beccatest",
"uuid": "dd5e004e-ff73-4f51-8c34-5d4e5d5e0ad9",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"L1"
],
"time": [
1400627300
],
"range": 157.21812702346875
},
"message_text": "",
"published": "2024-05-24T23:08:19.716487Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-24T23:08:19.716499Z",
"modified": "2024-05-24T23:08:19.716504Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1603,
"topic": "gcn.circular",
"uuid": "729d76b0-9324-4d8a-a2a0-6d1fb1e5b29f",
"title": "GRB 230728A: NOT optical observations and possible host galaxy",
"submitter": "Hop gcn.circular",
"authors": "Dong Xu at NAOC/CAS <dxu@nao.cas.cn>",
"data": {
"date": "23/07/28 09:23:06 GMT",
"from": "Dong Xu at NAOC/CAS <dxu@nao.cas.cn>",
"title": "GCN CIRCULAR",
"number": "34285",
"subject": "GRB 230728A: NOT optical observations and possible host galaxy"
},
"message_text": "D. Xu, S.Y. Fu, S.Q. Jiang, Z.P. Zhu (NAOC), Z. Gray (NOT), report:\n\nWe observed the field of GRB 230728A detected by Swift (Salvaggio et al., GCN 34282) using the the 2.56-m Nordic Optical Telescope (NOT) equipped with the ALFOSC camera. Observations started at 04:26:55 UT on 2023-07-28, i.e., ~ 1.61 hr after the Swift/BAT trigger, and 3x300 s Sloan r-filter images and 5x200 s Sloan z-filter images were obtained, respectively.\n\nNo optical source is detected within or at the border of the Swift/XRT error circle (radius ~1.9 arcsec, 90% containment, Salvaggio et al., GCN 34282) down to upper limits of r > 24.2 mag (5-sigma) and z > 23.0 mag (5-sigma).\n\nWe note that there exists a galaxy south-western, ~3.7 arcsec away from the center of the Swift/XRT error circle. This galaxy is present in SDSS with r ~ 22.39 mag, z ~ 22.99 mag, z_phot ~ 0.34, and in Legacy Survey with r ~ 22.14 mag, z ~ 22.04 mag, z_phot ~ 0.37, respectively. Preliminary photometry of the galaxy from the NOT data gives r ~ 22.4 mag and z ~ 23.0 mag, which are consistent with the above archival values, indicating that there is no prominent optical afterglow in this potential host galaxy.\n\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwNTM2MTkxLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.7gHtWFSI3Gjscfms9YnemVAMv-TZW2JAvgwZd_9HSM0\n\n",
"published": "2023-07-28T09:23:16.384248Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-28T09:23:16.384265Z",
"modified": "2023-07-28T09:23:16.389877Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1604,
"topic": "gcn.circular",
"uuid": "1485911f-c9da-49e0-93b2-76af4190516f",
"title": "GRB 230728A: Enhanced Swift-XRT position",
"submitter": "Hop gcn.circular",
"authors": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
"data": {
"date": "23/07/28 11:08:36 GMT",
"from": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
"title": "GCN CIRCULAR",
"number": "34286",
"subject": "GRB 230728A: Enhanced Swift-XRT position"
},
"message_text": "P.A. Evans, M.R. Goad, J.P. Osborne and A.P. Beardmore (U. Leicester)\nreport on behalf of the Swift-XRT team.\n\nUsing 1173 s of XRT Photon Counting mode data and 2 UVOT\nimages for GRB 230728A, 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 = 343.51572, +28.17433 which is equivalent\nto:\n\nRA (J2000): 22h 54m 3.77s\nDec (J2000): +28d 10' 27.6\"\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---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwNTQyNTIxLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.GsFR5QPzPI1o51h2ptKl1lCynaQKgJOgWMk_u4FCLZw\n\n",
"published": "2023-07-28T11:08:47.008606Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-28T11:08:47.008635Z",
"modified": "2023-07-28T11:08:47.015062Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1605,
"topic": "gcn.circular",
"uuid": "36a27dfa-1350-42de-b780-a0932c9635f4",
"title": "GRB 230728A: Swift-XRT refined Analysis",
"submitter": "Hop gcn.circular",
"authors": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
"data": {
"date": "23/07/28 12:26:15 GMT",
"from": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
"title": "GCN CIRCULAR",
"number": "34287",
"subject": "GRB 230728A: Swift-XRT refined Analysis"
},
"message_text": "J.P. Osborne (U. Leicester), K.L. Page (U. Leicester), B. Sbarufatti\n(INAF-OAB), A. D'Ai (INAF-IASFPA), A. Melandri (INAF-OAR), J. D. Gropp\n(PSU), S. Dichiara (PSU), J.A. Kennea (PSU), A.P. Beardmore (U.\nLeicester) and P.A. Evans report on behalf of the Swift-XRT team:\n\nWe have analysed 6.7 ks of XRT data for GRB 230728A, from 86 s to 28.9\nks after the BAT trigger. The data comprise 94 s in Windowed Timing\n(WT) mode (the first 3 s were taken while Swift was slewing) with the\nremainder in Photon Counting (PC) mode.\n\nThe late-time light curve (from T0+5.6 ks) can be modelled with a\npower-law decay with a decay index of alpha=1.19 (+0.20, -0.22).\n\nA spectrum formed from the WT mode data can be fitted with an absorbed\npower-law with a photon spectral index\tof 1.97 (+0.24, -0.23). The\nbest-fitting absorption column is 4.4 (+1.4, -1.2) x 10^21 cm^-2, in\nexcess of the Galactic value of 6.3 x 10^20 cm^-2 (Willingale et al.\n2013). The PC mode spectrum has a photon index of 2.04 (+0.19, -0.18)\nand a best-fitting absorption column of 7.0 (+1.5, -1.3) x 10^21 cm^-2.\nThe counts to observed (unabsorbed) 0.3-10 keV flux conversion factor\ndeduced from this spectrum is 4.3 x 10^-11 (7.6 x 10^-11) erg cm^-2\ncount^-1.\n\nA summary of the PC-mode spectrum is thus:\nTotal column:\t 7.0 (+1.5, -1.3) x 10^21 cm^-2\nGalactic foreground: 6.3 x 10^20 cm^-2\nExcess significance: 8.1 sigma\nPhoton index:\t 2.04 (+0.19, -0.18)\n\nIf the light curve continues to decay with a power-law decay index of\n1.19, the count rate at T+24 hours will be 6.2 x 10^-3 count s^-1,\ncorresponding to an observed (unabsorbed) 0.3-10 keV flux of 2.6 x\n10^-13 (4.7 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/01181187.\n\nThis circular is an official product of the Swift-XRT team.\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwNTQ3MTgwLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.4XPXhbr0mwjqQ7mCDEhGP4QuCyznx2X3pD-Eizpl2zE\n\n",
"published": "2023-07-28T12:26:25.846380Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-28T12:26:25.846398Z",
"modified": "2023-07-28T12:26:25.854258Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1606,
"topic": "gcn.circular",
"uuid": "ce074f3a-ebd0-4de1-98bd-a34013263f18",
"title": "GRB 230728A: Swift/UVOT Upper Limits",
"submitter": "Hop gcn.circular",
"authors": "Samantha Oates at University of Birmingham <samantha.oates@alumni.ucl.ac.uk>",
"data": {
"date": "23/07/28 14:37:00 GMT",
"from": "Samantha Oates at University of Birmingham <samantha.oates@alumni.ucl.ac.uk>",
"title": "GCN CIRCULAR",
"number": "34288",
"subject": "GRB 230728A: Swift/UVOT Upper Limits"
},
"message_text": "S. R. Oates (U. Birmingham) and C. Salvaggio (INAF-OAB)\nreport on behalf of the Swift/UVOT team:\n\nThe Swift/UVOT began settled observations of the field of GRB 230728A\n100 s after the BAT trigger (Salvaggio et al., GCN Circ. 34282).\nNo optical afterglow consistent with the XRT position (Evans et al.,\nGCN Circ. 34286) is detected in the initial UVOT exposures.\n\nPreliminary 3-sigma upper limits using the UVOT photometric system\n(Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the first\nfinding chart (FC) exposure and subsequent exposures are:\n\nFilter T_start(s) T_stop(s) Exp(s) Mag\n\nwhite_FC 100 250 147 >20.9\nu_FC 312 562 246 >20.1\nwhite 100 1361 372 >21.1\nv 641 5845 274 >19.4\nb 567 1338 78 >19.5\nu 312 1313 304 >20.0\nw1 691 1289 58 >18.5\nm2 5851 6048 194 >19.5\nw2 1023 1380 52 >18.5\n\nThe magnitudes in the table are not corrected for the Galactic extinction\ndue to the reddening of E(B-V) = 0.080 in the direction of the burst\n(Schlegel et al. 1998).\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwNTU1MDI2LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.DSHIbP4eXfHgR2aF5fR0AAzQKj7OU9IzKKFB9S31DzA\n\n",
"published": "2023-07-28T14:37:11.625828Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-28T14:37:11.625865Z",
"modified": "2023-07-28T14:37:11.631618Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 2504,
"topic": "igwn.gwalert",
"uuid": "fc5f0a32-2453-41de-a5ca-ad1fd1005c0b",
"title": "S230827v - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230827v/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230827v/view/"
},
"event": {
"far": 1.9708e-05,
"time": "2023-08-27T07:14:26.363Z",
"group": "Burst",
"search": "BBH",
"area_50": 1037.3669454810024,
"area_90": 3589.6589205681607,
"duration": 0.007414,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "62f6b74e76f46f1c06d82c6a7855c862",
"classification": {},
"skymap_version": 0,
"central_frequency": 122.744171
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-27T07:20:18Z",
"superevent_id": "S230827v",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-27T07:20:19.807262Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-27T07:20:19.807284Z",
"modified": "2023-08-27T07:20:19.810932Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 11695,
"topic": "lvk-users.beccatest",
"uuid": "fe090469-5fab-4ed8-8cc6-6516a54bea93",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"V1"
],
"time": [
1400627300
],
"range": 53.51353720454457
},
"message_text": "",
"published": "2024-05-24T23:08:25.733421Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-24T23:08:25.733435Z",
"modified": "2024-05-24T23:08:25.733440Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 2930,
"topic": "hermes.message",
"uuid": "96b6edd6-1f6a-497a-89d6-7042f63b1536",
"title": "INTEGRAL follow-up of S230901be",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230901be at 2023-09-01T16:09:26.000\n\n\nSPI-ACS excesses:\nat T0+21.33 FAP = 0.022\nat T0+-3.95 FAP = 0.07\nat T0+-11.72 FAP = 0.12\nat T0+113.68 FAP = 0.265\nat T0+-47.1 FAP = 0.402\nat T0+15.98 FAP = 0.558\nat T0+72.68 FAP = 0.697\n\n\n\n\nnext break in data in 42 hr: 2023-09-03T10:22:38, for 9.3 hr",
"published": "2023-09-12T11:30:55.109935Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-09-12T11:30:55.109945Z",
"modified": "2023-09-12T11:30:55.117787Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3268,
"topic": "hermes.message",
"uuid": "bbe8c55e-0762-43fd-a7d6-3c1fc49664ad",
"title": "INTEGRAL follow-up of S230823bm",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230823bm at 2023-08-23T14:31:42.000\n\n\nSPI-ACS excesses:\nat T0+-27.45 FAP = 0.243\nat T0+-166.4 FAP = 0.299\nat T0+-2.22 FAP = 0.307\nat T0+-147.35 FAP = 0.324\nat T0+-269.85 FAP = 0.348\nat T0+-44.75 FAP = 0.575\nat T0+21.23 FAP = 0.734\nat T0+148.45 FAP = 0.877\nat T0+-7.92 FAP = 0.971\n\n\n\n\nnext break in data in 4.4 hr: 2023-08-23T18:56:26, for 9.3 hr",
"published": "2023-09-21T20:57:42.519639Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-09-21T20:57:42.519658Z",
"modified": "2023-09-21T20:57:42.526705Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1608,
"topic": "gcn.circular",
"uuid": "932eac9e-677d-4250-9367-cf1687774395",
"title": "GRB 230728A: Fermi GBM Observation",
"submitter": "Hop gcn.circular",
"authors": "Sarah Dalessi at UAH <sd0104@uah.edu>",
"data": {
"date": "23/07/28 18:51:37 GMT",
"from": "Sarah Dalessi at UAH <sd0104@uah.edu>",
"title": "GCN CIRCULAR",
"number": "34290",
"subject": "GRB 230728A: Fermi GBM Observation"
},
"message_text": "S. Dalessi (UAH) and C. Meegan (UAH) report on behalf of\nthe Fermi Gamma-ray Burst Monitor Team:\n\n\"At 02:50:05.24 UT on 28 July 2023, the Fermi Gamma-ray Burst Monitor (GBM)\ntriggered and located GRB 230728A (trigger 712205410/230728118).\nwhich was also detected by Swift BAT (Salvaggio et al. 2023, GCN 34282) and Swift XRT (Evans et al. 2023, GCN 34286).\nThe Fermi GBM on-ground location is consistent with the Swift XRT position.\n\nThe angle from the Fermi LAT boresight is 66 degrees.\n\nThe GBM light curve consists of multiple peaks with a duration (T90)\nof about 19 s (50-300 keV). The time-averaged spectrum\nfrom T0-6.1 to T0+12.3 s is best fit by\na power law function with an exponential high-energy cutoff.\nThe power law index is -1.2 +/- 0.2 and the cutoff energy,\nparameterized as Epeak, is 95 +/- 15 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(1.7 +/- 0.1)E-06 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0-2.6 s in the 10-1000 keV band is 3.1 +/- 0.2 ph/s/cm^2.\n\nA Band function fits the spectrum equally well\nwith Epeak= 78 +/- 20 keV, alpha = -1.1 +/- 0.3 and beta = -2.4 +/- 0.4.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog:\nhttps://heasarc.gsfc.nasa.gov/W3Browse/fermi/fermigbrst.html\n\nFor Fermi GBM data and info, please visit the official Fermi GBM Support Page:\nhttps://fermi.gsfc.nasa.gov/ssc/data/access/gbm/\"\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwNTcwMzAyLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.TtYdedONIZ-Q39MNnyjy3EHKHa6GIWyFuoXDdMK1dyM\n\n",
"published": "2023-07-28T18:51:52.800277Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-28T18:51:52.800305Z",
"modified": "2023-07-28T18:51:52.806299Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1609,
"topic": "gcn.circular",
"uuid": "c6a360b3-8882-4f55-af53-837556e2bdcd",
"title": "GRB 230728A: BOOTES-1 optical upper limit",
"submitter": "Hop gcn.circular",
"authors": "Youdong HU at IAA-CSIC <huyoudong072@hotmail.com>",
"data": {
"date": "23/07/28 19:11:16 GMT",
"from": "Youdong HU at IAA-CSIC <huyoudong072@hotmail.com>",
"title": "GCN CIRCULAR",
"number": "34291",
"subject": "GRB 230728A: BOOTES-1 optical upper limit"
},
"message_text": "Y.-D. Hu, E. Fernandez-Garcia, A. J. Castro-Tirado, M.D. Caballero-Garcia, R. Sanchez-Ramirez, I. Perez-Garcia and S. Guziy (IAA-CSIC), C. Perez del Pulgar, A. Castellon, I. Carrasco and A. Reina (Univ. de Malaga) and F. Rendon (IAA-CSIC and INTA-CEDEA) on behalf of a larger collaboration, report:\n\nFollowing the detection of GRB 230728A by Swift (Salvaggio et al., GCNC 34282), the 0.3m BOOTES-1B robotic telescope in Mazagon (Huelva, Spain) automatically responded to this burst on Jul. 28 at 02:50:54 UT (i.e. ~51 s after trigger). In the co-added frame (60 x 10 s, clear filter), no source is detected within the enhanced XRT position (Evans et al., GCNC 34286) down to 19.9 mag.\n\nThis non-detection is consistent with the upper limits reported by MASTER (Lipunov et al. GCNC 34281), NOT (Xu et al. GCNC 34285), UVOT (Oates et al. GCNC 34288) and LCOGT (Strausbaugh et al. GCNC 34289).\n\nWe thank the staff at INTA-CEDEA for their excellent support.\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwNTcxNDgyLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.O4oWrt9TcWHWCO5dHEGT3GBT78qjwFlxcquaMuZfdSY\n\n",
"published": "2023-07-28T19:11:28.166461Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-28T19:11:28.166480Z",
"modified": "2023-07-28T19:11:28.170643Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1610,
"topic": "igwn.gwalert",
"uuid": "80e6292e-8553-4104-94a5-ba1601c63933",
"title": "S230728ax - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230728ax/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230728ax/view/"
},
"event": {
"far": 5.97544e-06,
"time": "2023-07-28T20:29:31.469Z",
"group": "Burst",
"search": "BBH",
"area_50": 2737.775870678827,
"area_90": 8907.423456626115,
"duration": 0.067701,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "fd9873a01c3b0eb5c7bd51649b1024ec",
"classification": {},
"skymap_version": 0,
"central_frequency": 20.550705
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-07-28T20:30:48Z",
"superevent_id": "S230728ax",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-28T20:30:49.213877Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-28T20:30:49.213906Z",
"modified": "2023-07-28T20:30:49.218330Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1611,
"topic": "igwn.gwalert",
"uuid": "3c029c81-3da4-4718-ba6f-22c5052b1eb6",
"title": "S230728ax - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230728ax/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230728ax/view/"
},
"event": {
"far": 5.97544e-06,
"time": "2023-07-28T20:29:31.469Z",
"group": "Burst",
"search": "BBH",
"area_50": 2737.775870678827,
"area_90": 8907.423456626115,
"duration": 0.067701,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "fd9873a01c3b0eb5c7bd51649b1024ec",
"classification": {},
"skymap_version": 0,
"central_frequency": 20.550705
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-28T20:35:24Z",
"superevent_id": "S230728ax",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-28T20:35:24.977382Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-28T20:35:24.977402Z",
"modified": "2023-07-28T20:35:24.980880Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 2505,
"topic": "igwn.gwalert",
"uuid": "1209b260-18bd-4dc6-b1d0-29171633cd1d",
"title": "S230827w - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230827w/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230827w/view/"
},
"event": {
"far": 1.20749e-05,
"time": "2023-08-27T07:15:01.498Z",
"group": "Burst",
"search": "AllSky",
"area_50": 447.34351289755205,
"area_90": 1690.3374014552905,
"duration": 0.022401,
"pipeline": "CWB",
"properties": {},
"instruments": [
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],
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"skymap_hash": "a1eec73cbfb75e88ab7cf64397d3954d",
"classification": {},
"skymap_version": 0,
"central_frequency": 690.246338
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-27T07:20:49Z",
"superevent_id": "S230827w",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-27T07:20:50.067216Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-27T07:20:50.067235Z",
"modified": "2023-08-27T07:20:50.070664Z",
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"targets": []
},
{
"id": 2506,
"topic": "gcn.circular",
"uuid": "8ee0f747-b3e1-4028-994b-da818271a127",
"title": "GRB 230826A: Swift-XRT refined Analysis",
"submitter": "Hop gcn.circular",
"authors": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
"data": {
"date": "23/08/27 07:26:29 GMT",
"from": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
"title": "GCN CIRCULAR",
"number": "34568",
"subject": "GRB 230826A: Swift-XRT refined Analysis"
},
"message_text": "J.A. Kennea (PSU), A. Tohuvavohu (U. Toronto), J.P. Osborne (U.\nLeicester), K.L. Page (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 8.3 ks of XRT data for GRB 230826A, from 65 s to 29.5\nks after the BAT trigger. The data comprise 56 s in Windowed Timing\n(WT) mode (the first 8 s were taken while Swift was slewing) with the\nremainder in Photon Counting (PC) mode. The refined XRT position is RA,\nDec = 83.0642, +66.1244 which is equivalent to:\n\nRA (J2000): 05 32 15.41\nDec(J2000): +66 07 27.9\n\nwith an uncertainty of 3.5 arcsec (radius, 90% confidence).\n\nThe light curve can be modelled with a series of power-law decays. The\ninitial decay index is alpha=3.44 (+0.25, -0.24). At T+213 s the decay\nflattens to an alpha of -0.06 (+0.24, -0.26) before breaking again at\nT+1264 s to a final decay with index alpha=1.39 (+0.22, -0.14).\n\nA spectrum formed from the WT mode data can be fitted with an absorbed\npower-law with a photon spectral index\tof 2.93 (+0.32, -0.29). The\nbest-fitting absorption column is 4.7 (+1.0, -0.9) x 10^21 cm^-2, in\nexcess of the Galactic value of 1.5 x 10^21 cm^-2 (Willingale et al.\n2013). The PC mode spectrum has a photon index of 2.15 (+0.22, -0.21)\nand a best-fitting absorption column of 4.4 (+1.1, -1.0) x 10^21 cm^-2.\nThe counts to observed (unabsorbed) 0.3-10 keV flux conversion factor\ndeduced from this spectrum is 3.6 x 10^-11 (6.3 x 10^-11) erg cm^-2\ncount^-1.\n\nA summary of the PC-mode spectrum is thus:\nTotal column:\t 4.4 (+1.1, -1.0) x 10^21 cm^-2\nGalactic foreground: 1.5 x 10^21 cm^-2\nExcess significance: 4.8 sigma\nPhoton index:\t 2.15 (+0.22, -0.21)\n\nIf the light curve continues to decay with a power-law decay index of\n1.39, the count rate at T+24 hours will be 2.8 x 10^-3 count s^-1,\ncorresponding to an observed (unabsorbed) 0.3-10 keV flux of 1.0 x\n10^-13 (1.8 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/01187463.\n\nThis circular is an official product of the Swift-XRT team.\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkzMTIxMTk0LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.IkN5xbnIvIQAb4W8rf8CTTvXs_nFbLr_MGRncQggpls\n\n",
"published": "2023-08-27T07:26:43.949226Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-27T07:26:43.949244Z",
"modified": "2023-08-27T07:26:43.953456Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3269,
"topic": "hermes.message",
"uuid": "084d8366-63a5-4f71-8f3a-19fb5be72614",
"title": "INTEGRAL follow-up of S230915x",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230915x at 2023-09-15T06:06:59.000\n\n\nSPI-ACS excesses:\nat T0+1.53 FAP = 0.184\nat T0+136.15 FAP = 0.219\nat T0+40.95 FAP = 0.453\nat T0+-12.17 FAP = 0.556\nat T0+25.3 FAP = 0.697\n\n\n\n\nnext break in data in 35 hr: 2023-09-16T17:33:35, for about 9 hr",
"published": "2023-09-21T21:01:30.021824Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-09-21T21:01:30.021851Z",
"modified": "2023-09-21T21:01:30.038425Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 11696,
"topic": "lvk-users.beccatest",
"uuid": "09cd0f38-7c50-4e61-8be9-cbf89a0508f5",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"L1"
],
"time": [
1400627400
],
"range": 157.19288596428285
},
"message_text": "",
"published": "2024-05-24T23:10:02.018785Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-24T23:10:02.018804Z",
"modified": "2024-05-24T23:10:02.018811Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 11697,
"topic": "lvk-users.beccatest",
"uuid": "ecbc40df-37fe-4eee-a56d-e3fa72c7b31b",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"V1"
],
"time": [
1400627400
],
"range": 53.260102703678974
},
"message_text": "",
"published": "2024-05-24T23:10:06.039462Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-24T23:10:06.039480Z",
"modified": "2024-05-24T23:10:06.039487Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 11698,
"topic": "lvk-users.beccatest",
"uuid": "5249ab65-e68b-44bf-b4d8-76ebbd9f7209",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"L1"
],
"time": [
1400627500
],
"range": 157.19165733911234
},
"message_text": "",
"published": "2024-05-24T23:11:39.207945Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-24T23:11:39.207958Z",
"modified": "2024-05-24T23:11:39.207963Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1614,
"topic": "igwn.gwalert",
"uuid": "f87cca48-ad43-4410-9327-cbd40830f3c1",
"title": "S230729c - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
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"gracedb": "https://gracedb.ligo.org/superevents/S230729c/view/"
},
"event": {
"far": 6.794503201693606e-07,
"time": "2023-07-29T02:57:44.665Z",
"group": "CBC",
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"area_50": 1214.2480812092558,
"area_90": 6135.23654649363,
"duration": null,
"pipeline": "gstlal",
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},
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"sequence_num": 1,
"time_created": "2023-07-29T02:58:15Z",
"superevent_id": "S230729c",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-29T02:58:16.419583Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-29T02:58:16.419604Z",
"modified": "2023-07-29T02:58:16.425298Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1615,
"topic": "igwn.gwalert",
"uuid": "84935cc5-4ca3-4df5-99cf-1561836e212e",
"title": "S230729c - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230729c/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S230729c/view/"
},
"event": {
"far": 2.009072521409061e-06,
"time": "2023-07-29T02:57:44.664Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1252.0162952437583,
"area_90": 5961.502761934919,
"duration": null,
"pipeline": "gstlal",
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},
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"sequence_num": 2,
"time_created": "2023-07-29T03:02:51Z",
"superevent_id": "S230729c",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-29T03:02:53.047374Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-29T03:02:53.047395Z",
"modified": "2023-07-29T03:02:53.052964Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 22108,
"topic": "lvk-users.beccatest",
"uuid": "b0cdd011-dca4-4ab7-8f47-800898b68f71",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
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],
"time": [
1401079000
],
"range": 48.66642678572142
},
"message_text": "",
"published": "2024-05-30T04:36:44.829021Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-30T04:36:44.829041Z",
"modified": "2024-05-30T04:36:44.829048Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1623,
"topic": "igwn.gwalert",
"uuid": "25c57d02-ec48-40c2-ac8b-eabcdf915760",
"title": "S230729w - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230729w/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230729w/view/"
},
"event": {
"far": 2.217662195071765e-05,
"time": "2023-07-29T07:53:16.683Z",
"group": "CBC",
"search": "AllSky",
"area_50": 271.8262293427667,
"area_90": 897.4147301420404,
"duration": null,
"pipeline": "pycbc",
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},
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"sequence_num": 1,
"time_created": "2023-07-29T07:54:00Z",
"superevent_id": "S230729w",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-29T07:54:01.221566Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-29T07:54:01.221588Z",
"modified": "2023-07-29T07:54:01.225667Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1624,
"topic": "igwn.gwalert",
"uuid": "f260edf6-92eb-499e-a3c7-6168c2cb1f3f",
"title": "S230729w - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
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},
"event": {
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},
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"published": "2023-07-29T07:58:35.959169Z",
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"retracted": false,
"created": "2023-07-29T07:58:35.959190Z",
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},
{
"id": 1625,
"topic": "igwn.gwalert",
"uuid": "8a4b1c24-6790-459e-9821-df0362546c3b",
"title": "S230729y - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
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"gracedb": "https://gracedb.ligo.org/superevents/S230729y/view/"
},
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"time": "2023-07-29T08:23:14.492Z",
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"time_created": "2023-07-29T08:23:45Z",
"superevent_id": "S230729y",
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},
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"published": "2023-07-29T08:23:47.074949Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-29T08:23:47.074970Z",
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},
{
"id": 1626,
"topic": "igwn.gwalert",
"uuid": "e885fa1c-6eb8-4435-ba5f-02de98281488",
"title": "S230729z - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"NSBH": 1.0474726072022376e-17,
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"sequence_num": 1,
"time_created": "2023-07-29T08:23:53Z",
"superevent_id": "S230729z",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-29T08:23:55.143861Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-29T08:23:55.143902Z",
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{
"id": 22109,
"topic": "lvk-users.beccatest",
"uuid": "ba76c774-2753-4346-a5f6-005bda173abd",
"title": "Generic Message",
"submitter": "",
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1401079100
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"published": "2024-05-30T04:38:19.050834Z",
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"created": "2024-05-30T04:38:19.050860Z",
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{
"id": 22110,
"topic": "lvk-users.beccatest",
"uuid": "1d942a45-1b8c-40f5-8ad5-d9fa906ebf19",
"title": "Generic Message",
"submitter": "",
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1401079100
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"range": 165.93355161118683
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"message_text": "",
"published": "2024-05-30T04:38:21.067423Z",
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"retracted": false,
"created": "2024-05-30T04:38:21.067446Z",
"modified": "2024-05-30T04:38:21.067457Z",
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},
{
"id": 22111,
"topic": "lvk-users.beccatest",
"uuid": "b3f2ce79-2668-4f38-9e12-976d2c2b26fe",
"title": "Generic Message",
"submitter": "",
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"V1"
],
"time": [
1401079100
],
"range": 48.480755784600916
},
"message_text": "",
"published": "2024-05-30T04:38:26.093561Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-30T04:38:26.093583Z",
"modified": "2024-05-30T04:38:26.093593Z",
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"targets": []
},
{
"id": 22112,
"topic": "lvk-users.beccatest",
"uuid": "7f6eca15-8251-4b3c-bba5-af5be673477a",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"H1"
],
"time": [
1401079200
],
"range": 151.00820314246047
},
"message_text": "",
"published": "2024-05-30T04:40:00.294770Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-30T04:40:00.294789Z",
"modified": "2024-05-30T04:40:00.294797Z",
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"targets": []
},
{
"id": 1616,
"topic": "gcn.circular",
"uuid": "76acf171-43b9-409a-a2d2-05a32338c67f",
"title": "IceCube-230727A: Upper limits from a search for additional neutrino events in IceCube",
"submitter": "Hop gcn.circular",
"authors": "Jessie Thwaites at IceCube/U Wisc-Madison <thwaites@wisc.edu>",
"data": {
"date": "23/07/29 04:24:42 GMT",
"from": "Jessie Thwaites at IceCube/U Wisc-Madison <thwaites@wisc.edu>",
"title": "GCN CIRCULAR",
"number": "34292",
"subject": "IceCube-230727A: Upper limits from a search for additional neutrino events in IceCube"
},
"message_text": "The IceCube Collaboration (http://icecube.wisc.edu/) reports:\n\n\nIceCube has performed a search [1] for additional track-like muon neutrino events arriving from the direction of IceCube-230727A (https://gcn.nasa.gov/circulars/34276) in a time range of 1000 seconds centered on the alert event time (2023-07-27 15:57:19.630 UTC to 2023-07-27 16:13:59.630 UTC) during which IceCube was collecting good quality data. Excluding the event that prompted the alert, zero track-like events are found within the 90% containment region of IceCube-230727A. The IceCube sensitivity to neutrino point sources with an E^-2.5 spectrum (E^2 dN/dE at 1 TeV) within the locations spanned by the 90% spatial containment region of IceCube-230727A is 1.3e-01 GeV cm^-2 in a 1000 second time window. 90% of events IceCube would detect from a source at this declination with an E^-2.5 spectrum have energies in the approximate energy range between 3e+02 GeV and 1e+05 GeV.\n\n\nA subsequent search was performed including 2 days of data centered on the alert event time (2023-07-26 16:05:39.630 UTC to 2023-07-28 16:05:39.630 UTC). In this case, we report a p-value of 0.10, consistent with no significant excess of track events. The IceCube sensitivity to neutrino point sources with an E^-2.5 spectrum (E^2 dN/dE at 1 TeV) within the locations spanned by the 90% spatial containment region of IceCube-230727A is 1.5e-01 GeV cm^-2 in a 2 day time window.\n\n\nThe IceCube Neutrino Observatory is a cubic-kilometer neutrino detector operating at the geographic South Pole, Antarctica. The IceCube realtime alert point of contact can be reached at roc@icecube.wisc.edu<mailto:roc@icecube.wisc.edu>.\n\n\n[1] IceCube Collaboration, R. Abbasi et al., ApJ 910 4 (2021)\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwNjA0Njg3LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.e902sKONzdIALevuLRzLTyQUQ9cPPQWzPxpT73ilJiU\n\n",
"published": "2023-07-29T04:24:56.627678Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-29T04:24:56.627705Z",
"modified": "2023-07-29T04:24:56.639226Z",
"nonlocalizedevents": [],
"targets": []
},
{
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"title": "S230729p - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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},
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"published": "2023-07-29T05:12:50.115366Z",
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"retracted": false,
"created": "2023-07-29T05:12:50.115389Z",
"modified": "2023-07-29T05:12:50.122992Z",
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{
"id": 1618,
"topic": "igwn.gwalert",
"uuid": "416c753a-4766-4763-a728-d962a1f90315",
"title": "S230729p - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"sequence_num": 2,
"time_created": "2023-07-29T05:17:23Z",
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},
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"published": "2023-07-29T05:17:24.731626Z",
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"retracted": false,
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{
"id": 1619,
"topic": "igwn.gwalert",
"uuid": "c20ca2bb-c751-4daa-bd3b-d7ed95b5b7e9",
"title": "S230729q - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"sequence_num": 1,
"time_created": "2023-07-29T05:29:08Z",
"superevent_id": "S230729q",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-29T05:29:10.351332Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-29T05:29:10.351361Z",
"modified": "2023-07-29T05:29:10.363194Z",
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},
{
"id": 1620,
"topic": "igwn.gwalert",
"uuid": "129974e8-7322-4bbf-bc59-e78e68ff3023",
"title": "S230729q - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"sequence_num": 2,
"time_created": "2023-07-29T05:33:43Z",
"superevent_id": "S230729q",
"external_coinc": null
},
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"published": "2023-07-29T05:33:44.165996Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-29T05:33:44.166017Z",
"modified": "2023-07-29T05:33:44.171577Z",
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},
{
"id": 2507,
"topic": "igwn.gwalert",
"uuid": "954029a0-a888-4e24-a9c2-698b08d6ba6a",
"title": "S230827x - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
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"gracedb": "https://gracedb.ligo.org/superevents/S230827x/view/"
},
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"time": "2023-08-27T07:20:28.981Z",
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},
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"published": "2023-08-27T07:30:55.679241Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-27T07:30:55.679262Z",
"modified": "2023-08-27T07:30:55.682957Z",
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},
{
"id": 3270,
"topic": "hermes.message",
"uuid": "46a2f3cf-b290-4e14-9337-5342440e1b77",
"title": "INTEGRAL follow-up of S230917v",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230917v at 2023-09-17T06:23:20.000\n\n\nSPI-ACS excesses:\nat T0+7.78 FAP = 0.046\nat T0+-6.72 FAP = 0.253\nat T0+35.95 FAP = 0.351\nat T0+30.08 FAP = 0.403\nat T0+-17.45 FAP = 0.447\nat T0+43.48 FAP = 0.472\n\n\n\n\nnext break in data in 51 hr: 2023-09-19T09:23:29, for about 9 hr",
"published": "2023-09-21T21:10:35.152277Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-09-21T21:10:35.152302Z",
"modified": "2023-09-21T21:10:35.158784Z",
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},
{
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"title": "S230729y - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
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},
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{
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"title": "S230729z - PRELIMINARY",
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{
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"title": "S230729ae - PRELIMINARY",
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},
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"created": "2023-07-29T10:31:07.306993Z",
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{
"id": 1631,
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"title": "S230729z - INITIAL",
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"urls": {
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"gracedb": "https://gracedb.ligo.org/superevents/S230729z/view/"
},
"event": {
"far": 3.393122427937458e-09,
"time": "2023-07-29T08:23:17.201Z",
"group": "CBC",
"search": "AllSky",
"area_50": 391.32066207970666,
"area_90": 1427.428667092892,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.05507240955925167,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": true,
"skymap_hash": "69c05d3318fb5d62f793a60eb142cfdc",
"classification": {
"BBH": 0.9970115962123625,
"BNS": 1.686900110238534e-19,
"NSBH": 1.0474726072022376e-17,
"Terrestrial": 0.002988403787637539
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "INITIAL",
"sequence_num": 3,
"time_created": "2023-07-29T11:07:43Z",
"superevent_id": "S230729z",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-29T11:07:44.768140Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-29T11:07:44.768170Z",
"modified": "2023-07-29T11:07:44.771982Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1632,
"topic": "gcn.circular",
"uuid": "b14295a4-0030-48aa-8702-696c0649082c",
"title": "LIGO/Virgo/KAGRA S230729z: Identification of a GW compact binary merger candidate",
"submitter": "Hop gcn.circular",
"authors": "Angélique Lartaux at IJCLab <angelique.lartaux@ijclab.in2p3.fr>",
"data": {
"date": "23/07/29 11:17:18 GMT",
"from": "Angélique Lartaux at IJCLab <angelique.lartaux@ijclab.in2p3.fr>",
"title": "GCN CIRCULAR",
"number": "34293",
"subject": "LIGO/Virgo/KAGRA S230729z: 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 S230729z during\nreal-time processing of data from LIGO Hanford Observatory (H1) and\nLIGO Livingston Observatory (L1) at 2023-07-29 08:23:17.201 UTC (GPS\ntime: 1374654215.201). The candidate was found by the GstLAL\n[1], MBTA [2], and PyCBC Live [3] analysis pipelines.\n\nS230729z is an event of interest because its false alarm rate, as\nestimated by the online analysis, is 3.4e-09 Hz, or about one in 9\nyears. The event's properties can be found at this URL:\n\nhttps://gracedb.ligo.org/superevents/S230729z\n\nThe classification of the GW signal, in order of descending\nprobability, is BBH (>99%), Terrestrial (<1%), NSBH (<1%), or BNS\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%. [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 6%.\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 [5], distributed via GCN notice about 35 seconds after the\ncandidate event time.\n * bayestar.multiorder.fits,1, 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,1. For\nthe bayestar.multiorder.fits,1 sky map, the 90% credible region is\n1428 deg2. Marginalized over the whole sky, the a posteriori\nluminosity distance estimate is 1546 +/- 472 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] Tsukada et al. arXiv:2305.06286 (2023) and Ewing et al.\narXiv:2305.05625 (2023)\n [2] Aubin et al. CQG 38, 095004 (2021)\n [3] Dal Canton et al. ApJ 923, 254 (2021)\n [4] Chatterjee et al. ApJ 896, 54 (2020)\n [5] 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.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwNjI5NDQ0LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.LYSft8Hz4luqryduOt_fU6wMWRpmCosnC3tdwzbKYMM\n\n",
"published": "2023-07-29T11:17:31.552325Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-29T11:17:31.552348Z",
"modified": "2023-07-29T11:17:31.557843Z",
"nonlocalizedevents": [
{
"event_id": "S230729z"
}
],
"targets": []
},
{
"id": 4236,
"topic": "igwn.gwalert",
"uuid": "6b5b354e-6796-4482-81e7-6dc6c6250ee7",
"title": "S231028ah - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231028ah/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231028ah/view/"
},
"event": {
"far": 3.75901e-06,
"time": "2023-10-28T09:48:50.243Z",
"group": "Burst",
"search": "AllSky",
"area_50": 715.9174793651255,
"area_90": 2715.1149422581257,
"duration": 0.00868,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "20c3d119a2a279bcf66eedb0a18fa16b",
"classification": {},
"skymap_version": 0,
"central_frequency": 572.724915
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-10-28T09:55:31Z",
"superevent_id": "S231028ah",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-31T23:27:48.401059Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-31T23:27:48.401086Z",
"modified": "2023-10-31T23:27:48.406017Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1754,
"topic": "hermes.message",
"uuid": "bea3150b-b8f4-48f1-8099-693606d1aeaa",
"title": "INTEGRAL follow-up of S230730bq",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230730bq at 2023-07-30T17:30:14.000\n\n\nSPI-ACS excesses:\nat T0+-3.66 FAP = 0.115\nat T0+5.69 FAP = 0.146\nat T0+23.79 FAP = 0.269\nat T0+-180.69 FAP = 0.549\nat T0+-2.64 FAP = 0.621\n\n\n\n\nnext break in data in 2.8 hr: 2023-07-30T20:18:34, for 9.2 hr",
"published": "2023-08-02T02:35:00.265177Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-08-02T02:35:00.265196Z",
"modified": "2023-08-02T02:35:00.271648Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 11699,
"topic": "lvk-users.beccatest",
"uuid": "31784e68-64a3-4ee4-9c78-6ffe67a07d68",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"V1"
],
"time": [
1400627500
],
"range": 53.10895891460944
},
"message_text": "",
"published": "2024-05-24T23:11:46.225911Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-24T23:11:46.225926Z",
"modified": "2024-05-24T23:11:46.225931Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1637,
"topic": "igwn.gwalert",
"uuid": "12fdb2b1-78ed-4b64-9f19-22452cdf80c4",
"title": "S230729au - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230729au/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230729au/view/"
},
"event": {
"far": 1.836282353906427e-05,
"time": "2023-07-29T15:13:57.840Z",
"group": "CBC",
"search": "AllSky",
"area_50": 483.48559549445787,
"area_90": 2429.7551028863286,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.5815017487710125,
"HasMassGap": 0.7847053872400501,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "005204ee59fc1a61120a376799c9089a",
"classification": {
"BBH": 0.01980083783892013,
"BNS": 0.0,
"NSBH": 0.05216717295503163,
"Terrestrial": 0.9280319892060482
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-07-29T15:14:23Z",
"superevent_id": "S230729au",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-29T15:14:24.607827Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-29T15:14:24.607847Z",
"modified": "2023-07-29T15:14:24.614342Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1638,
"topic": "igwn.gwalert",
"uuid": "02072bd6-3f64-4652-8e72-27df40c65282",
"title": "S230729au - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230729au/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230729au/view/"
},
"event": {
"far": 1.836282353906427e-05,
"time": "2023-07-29T15:13:57.840Z",
"group": "CBC",
"search": "AllSky",
"area_50": 483.48559549445787,
"area_90": 2429.7551028863286,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.5815017487710125,
"HasMassGap": 0.7847053872400501,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "005204ee59fc1a61120a376799c9089a",
"classification": {
"BBH": 0.01980083783892013,
"BNS": 0.0,
"NSBH": 0.05216717295503163,
"Terrestrial": 0.9280319892060482
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-29T15:18:58Z",
"superevent_id": "S230729au",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-29T15:18:59.274224Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-29T15:18:59.274244Z",
"modified": "2023-07-29T15:18:59.278022Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1639,
"topic": "gcn.circular",
"uuid": "7259e96f-4a26-41cb-ab77-5a5ff84c7342",
"title": "IceCube-230727A: No candidates from the Zwicky Transient Facility",
"submitter": "Hop gcn.circular",
"authors": "Jannis Necker at DESY <jannis.necker@desy.de>",
"data": {
"date": "23/07/29 15:47:21 GMT",
"from": "Jannis Necker at DESY <jannis.necker@desy.de>",
"title": "GCN CIRCULAR",
"number": "34294",
"subject": "IceCube-230727A: No candidates from the Zwicky Transient Facility"
},
"message_text": "Jannis Necker (DESY), Simeon Reusch (DESY), Robert Stein (Caltech), Sven Weimann (Ruhr University Bochum) and Anna Franckowiak (DESY/Ruhr University Bochum) report:\n\nOn behalf of the Zwicky Transient Facility (ZTF) and Global Relay of Observatories Watching Transients Happen (GROWTH) collaborations:\n\nAs part of the ZTF neutrino follow up program (Stein et al. 2022), we observed the localization region of the neutrino event IceCube-230727A (Blaufuss et. al, GCN 34276) with the Palomar 48-inch telescope, equipped with the 47 square degree ZTF camera (Bellm et al. 2019, Graham et al. 2019). We started observations in the g- and r-band beginning at 2023-07-28 09:54 UTC, approximately 17.8 hours after event time. We covered 72.1% (1.7 sq deg) of the reported localization region. This estimate accounts for chip gaps. Each exposure was 300s with a typical depth of 21.0 mag.\n\nThe images were processed in real-time through the ZTF reduction and image subtraction pipelines at IPAC to search for potential counterparts (Masci et al. 2019). AMPEL (Nordin et al. 2019, Stein et al. 2021) was used to search the alerts database for candidates. We reject stellar sources (Tachibana and Miller 2018) and moving objects, and apply machine learning algorithms (Mahabal et al. 2019).\n\nNo candidate counterparts were detected.\n\nZTF and GROWTH are worldwide collaborations comprising Caltech, USA; IPAC, USA; WIS, Israel; OKC, Sweden; JSI/UMd, USA; DESY, Germany; TANGO, Taiwan; UW Milwaukee, USA; LANL, USA; TCD, Ireland; IN2P3, France.\n\nGROWTH acknowledges generous support of the NSF under PIRE Grant No 1545949.\nAlert distribution service provided by DIRAC@UW (Patterson et al. 2019).\nAlert database searches are done by AMPEL (Nordin et al. 2019).\nAlert filtering is performed with the nuztf (Stein et al. 2021, https://github.com/desy-multimessenger/nuztf).\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwNjQ1NjQ2LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.DbyDO_zMkdRkdxHcVwy1CCNKroQeXEYEltDLQibM4yM\n\n",
"published": "2023-07-29T15:47:36.330260Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-29T15:47:36.330280Z",
"modified": "2023-07-29T15:47:36.337371Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1640,
"topic": "igwn.gwalert",
"uuid": "5a150d48-27b5-4098-997e-18304c204634",
"title": "S230729ax - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230729ax/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230729ax/view/"
},
"event": {
"far": 1.899796e-05,
"time": "2023-07-29T16:26:45.206Z",
"group": "CBC",
"search": "AllSky",
"area_50": 530.6434071847603,
"area_90": 2122.5736287390414,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.5213539472443225,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "4c3ec94fddea547a75607e98923ddbad",
"classification": {
"BBH": 0.0,
"BNS": 0.000680539,
"NSBH": 6.0159e-05,
"Terrestrial": 0.999259301
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-07-29T16:27:19Z",
"superevent_id": "S230729ax",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-29T16:27:20.427627Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-29T16:27:20.427647Z",
"modified": "2023-07-29T16:27:20.433216Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1641,
"topic": "igwn.gwalert",
"uuid": "103bd66e-53a4-40c6-97de-497c0b22af91",
"title": "S230729ax - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230729ax/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230729ax/view/"
},
"event": {
"far": 1.899796e-05,
"time": "2023-07-29T16:26:45.206Z",
"group": "CBC",
"search": "AllSky",
"area_50": 530.6434071847603,
"area_90": 2122.5736287390414,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.5213539472443225,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "4c3ec94fddea547a75607e98923ddbad",
"classification": {
"BBH": 0.0,
"BNS": 0.000680539,
"NSBH": 6.0159e-05,
"Terrestrial": 0.999259301
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-29T16:32:01Z",
"superevent_id": "S230729ax",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-29T16:32:02.200500Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-29T16:32:02.200521Z",
"modified": "2023-07-29T16:32:02.205018Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 2508,
"topic": "igwn.gwalert",
"uuid": "19cea0f0-dc6e-4da8-8dca-8b0c2ed1b361",
"title": "S230827x - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230827x/files/olib.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230827x/view/"
},
"event": {
"far": 1.4389096453842347e-06,
"time": "2023-08-27T07:20:28.981Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1155.707349455777,
"area_90": 5614.035192817495,
"duration": 0.11419552855704572,
"pipeline": "oLIB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "108b149033e487b9ee8c2648e50e3307",
"classification": {},
"skymap_version": 0,
"central_frequency": 98.21129315760321
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-27T07:35:29Z",
"superevent_id": "S230827x",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-27T07:35:30.473655Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-27T07:35:30.473677Z",
"modified": "2023-08-27T07:35:30.477333Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1790,
"topic": "hermes.message",
"uuid": "0736356b-859a-4557-a0b5-c2296bd5e275",
"title": "INTEGRAL follow-up of S230802aq",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230802aq at 2023-08-02T11:33:59.000\n\n\nSPI-ACS excesses:\nat T0+13.88 FAP = 0.402\nat T0+92.78 FAP = 0.46\nat T0+-3.22 FAP = 0.516\nat T0+251.91 FAP = 0.695\nat T0+-14.04 FAP = 0.782\nat T0+73.73 FAP = 0.865\n\n\n\n\nnext break in data in 0.62 hr: 2023-08-02T12:11:10, for 9.2 hr",
"published": "2023-08-02T14:48:44.201217Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-08-02T14:48:44.201244Z",
"modified": "2023-08-02T14:48:44.207850Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1791,
"topic": "gcn.circular",
"uuid": "a402a5ab-45f4-4c86-8b4b-28d97cdb8b6b",
"title": "LIGO/Virgo S230802aq: No counterpart candidates in INTEGRAL SPI-ACS prompt observation",
"submitter": "Hop gcn.circular",
"authors": "Volodymyr Savchenko at ISDC, University of Geneva; LASTRO, EPFL <volodymyr.savchenko@unige.ch>",
"data": {
"date": "23/08/02 15:00:06 GMT",
"from": "Volodymyr Savchenko at ISDC, University of Geneva; LASTRO, EPFL <volodymyr.savchenko@unige.ch>",
"title": "GCN CIRCULAR",
"number": "34316",
"subject": "LIGO/Virgo S230802aq: No counterpart candidates in INTEGRAL SPI-ACS prompt observation"
},
"message_text": "V. Savchenko, C. Ferrigno (ISDC/UniGE, Switzerland)\nJ. Rodi (IAPS-Roma, Italy)\nA. Coleiro (APC, France)\nS. Mereghetti (INAF IASF-Milano, Italy)\n\non behalf of the INTEGRAL multi-messenger collaboration:\nhttps://www.astro.unige.ch/cdci/integral-multimessenger-collaboration\n\nUsing INTEGRAL/SPI-ACS realtime data (following [1]) we have performed\na search for a prompt gamma-ray counterpart of S230802aq (GCN 34314).\n\nAt the time of the event (2023-08-02 11:33:59 UTC, hereafter T0), INTEGRAL was operating in nominal mode. The peak of the event localization probability was at an angle of 75 deg with respect to the spacecraft pointing axis. This orientation implies strongly suppressed (21% of optimal) response of ISGRI, somewhat suppressed (44% of optimal) response of IBIS/Veto, and near-optimal (89% of optimal) response of SPI-ACS.\nWe note that due to large localization uncertainty, sensitivity is strongly dependent on the actual source location within the uncertainty.\n\nThe background within +/-300 seconds around the event was rather stable (excess variance 1.2).\n\nWe have performed a search for any impulsive events in INTEGRAL SPI-ACS (as described in [2]) data.\n\nWe do not detect any significant counterparts and estimate a 3-sigma upper limit on the 75-2000 keV fluence of 1.8e-07 erg/cm^2 (within the 50% probability containment region of the source localization) for a burst lasting less than 1 s with a characteristic short GRB spectrum (an exponentially cut off power law with alpha=-0.5 and Ep`0 keV) occurring at any time in the interval within 300 s around T0. For a typical long GRB spectrum (Band function with alpha=-1, beta=-2.5, and Ep00 keV), the derived peak flux upper limit is ~1.5e-07 (4.2e-08) erg/cm^2/s at 1 s (8 s) time scale in 75-2000 keV energy range.\n\nWe report for completeness and in order of FAP, all excesses identified in the search region. We find: 6 likely background\nexcesses:\n\nT-T0 | scale | S/N | flux ( x 1e-06 erg/cm2/s) | FAP\n13.9 | 0.05 | 4.2 | 1.77 +/- 0.528 +/- 1.39 | 0.402\n92.8 | 1.15 | 3.6 | 0.323 +/- 0.106 +/- 0.253 | 0.46\n-3.22 | 0.05 | 3.3 | 1.4 +/- 0.523 +/- 1.1 | 0.516\n252 | 2.5 | 3.5 | 2.14 +/- 0.72 +/- 1.68 | 0.695\n-14 | 0.1 | 3.6 | 1.08 +/- 0.367 +/- 0.843 | 0.782\n73.7 | 0.35 | 3.8 | 0.606 +/- 0.194 +/- 0.475 | 0.865\n\nNote that FAP estimates (especially at timescales above 2s) may be possibly further affected by enhanced non-stationary local background noise. This list excludes any excesses for which FAP is close to unity.\n\nWe note that no independent IBAS alerts happened in the viscinity.\n\n\nAll results quoted are preliminary.\n\nThis circular is an official product of the INTEGRAL Multi-Messenger team.\n\nNote that we send GCNs Circulars only when one of the following\nconditions is met: merger contains at least one neutron star, a\nsingificant counterpart is reported.\n\n[1] Savchenko et al. 2017, A&A 603, A46 [2] Savchenko et al. 2012, A&A\n541A, 122S\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwOTg4NDEyLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.w-BCGdD9qFmICU4KuGW_ZnPZzDZYF5ehu2wnXimvYbU\n\n",
"published": "2023-08-02T15:00:22.797299Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-02T15:00:22.797316Z",
"modified": "2023-08-02T15:00:22.803973Z",
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"event_id": "S230802a"
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{
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"topic": "igwn.gwalert",
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"title": "S231102ac - PRELIMINARY",
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"authors": "LVK",
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"message_parser": "IGWN Alert Avro Parser v1",
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{
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"topic": "igwn.gwalert",
"uuid": "51529e1f-548c-4b8e-bee9-5bb8819e6a2e",
"title": "S230729bc - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"time": "2023-07-29T17:11:55.722Z",
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"time_created": "2023-07-29T17:12:24Z",
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"published": "2023-07-29T17:12:25.951861Z",
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"created": "2023-07-29T17:12:25.951882Z",
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{
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"uuid": "10fe4ae1-14c7-4a0e-b308-f78bc6b5cd7e",
"title": "S230729bc - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"time": "2023-07-29T17:11:55.722Z",
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"sequence_num": 2,
"time_created": "2023-07-29T17:16:59Z",
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"published": "2023-07-29T17:17:00.685447Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-29T17:17:00.685466Z",
"modified": "2023-07-29T17:17:00.689081Z",
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{
"id": 1644,
"topic": "igwn.gwalert",
"uuid": "bc393514-7853-46f7-982b-afa19b51652a",
"title": "S230729be - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"published": "2023-07-29T17:22:35.571939Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-29T17:22:35.571971Z",
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{
"id": 1645,
"topic": "igwn.gwalert",
"uuid": "c6f45b7f-97bf-4acb-87db-11928df7bd69",
"title": "S230729be - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"sequence_num": 2,
"time_created": "2023-07-29T17:27:08Z",
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},
"message_text": "",
"published": "2023-07-29T17:27:09.281265Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-29T17:27:09.281285Z",
"modified": "2023-07-29T17:27:09.284959Z",
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},
{
"id": 1808,
"topic": "gcn.circular",
"uuid": "5c0f697f-fe5a-4f31-a406-6bf6609f3354",
"title": "Fermi trigger No 712798043: 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": "23/08/04 00:31:18 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"title": "GCN CIRCULAR",
"number": "34331",
"subject": "Fermi trigger No 712798043: 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-SAAO robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in South Africa (South African Astronomical Observatory) started inspect of the Fermi GRB230803.98 (trigger No 712798043,03h 14m 57.60s , -33d 52m 47.6s, R=4.4) errorbox 576 sec after notice time and 608 sec after trigger time at 2023-08-03 23:37:26 UT, with upper limit up to 15.6 mag. The observations began at zenith distance = 68 deg. The sun altitude is -71.2 deg.\n\nThe galactic latitude b = -58 deg., longitude l = 234 deg.\n\n\nReal time updated cover map and OT discovered available here:\nhttps://master.sai.msu.ru/site/master2/observ.php?id\"49535\n\nWe obtain a following upper limits.\n\nTmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n 638 | 2023-08-03 23:37:26 | MASTER-SAAO | (03h 22m 04.45s , -33d 44m 25.7s) | C | 60 | 15.6 |\n 638 | 2023-08-03 23:37:26 | MASTER-SAAO | (03h 21m 06.33s , -33d 43m 44.1s) | C | 60 | 15.2 |\n 718 | 2023-08-03 23:38:45 | MASTER-SAAO | (03h 21m 59.43s , -33d 45m 01.6s) | C | 60 | 14.0 |\n 718 | 2023-08-03 23:38:45 | MASTER-SAAO | (03h 21m 01.34s , -33d 44m 20.6s) | C | 60 | 13.3 |\n 1582 | 2023-08-03 23:53:10 | MASTER-SAAO | (03h 13m 52.24s , -34d 07m 25.5s) | C | 60 | 12.9 |\n 1582 | 2023-08-03 23:53:10 | MASTER-SAAO | (03h 12m 53.62s , -34d 06m 52.5s) | C | 60 | 12.1 |\n 1673 | 2023-08-03 23:54:41 | MASTER-SAAO | (03h 13m 58.82s , -34d 07m 23.1s) | C | 60 | 13.1 |\n 1843 | 2023-08-03 23:57:31 | MASTER-SAAO | (03h 13m 55.04s , -34d 07m 13.9s) | C | 60 | 14.1 |\n 1843 | 2023-08-03 23:57:31 | MASTER-SAAO | (03h 12m 56.59s , -34d 06m 43.3s) | C | 60 | 13.4 |\nFilter C is a clear (unfiltred) band.\n\n\nThe observation and reduction will continue.\nThe message may be cited.\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkxMTA5MDgzLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.SE-avRlDTR8xuw6n7xgCKv4ozclFK6WMywaMljoR10Y\n\n",
"published": "2023-08-04T00:31:31.322537Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-04T00:31:31.322560Z",
"modified": "2023-08-04T00:31:31.328972Z",
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{
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"topic": "igwn.gwalert",
"uuid": "75471cd7-286d-4166-a974-17b9cc14d1d7",
"title": "S230804b - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
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"data": {
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{
"id": 1915,
"topic": "igwn.gwalert",
"uuid": "211eefea-b138-441c-be73-85affe3c7dc6",
"title": "S230808i - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
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{
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"topic": "igwn.gwalert",
"uuid": "4b01f91e-c87c-4720-ac79-160f7d5011bf",
"title": "S230808r - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
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"sequence_num": 2,
"time_created": "2023-08-08T06:35:35Z",
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"external_coinc": null
},
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"published": "2023-08-08T06:35:36.849981Z",
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