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{
"count": 257459,
"next": "https://hermes.lco.global/api/v0/messages/?format=api&limit=100&offset=1600&ordering=created",
"previous": "https://hermes.lco.global/api/v0/messages/?format=api&limit=100&offset=1400&ordering=created",
"results": [
{
"id": 1501,
"topic": "igwn.gwalert",
"uuid": "a710fd43-4b64-49ef-a4fe-082995643cef",
"title": "S230723ac - UPDATE",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230723ac/files/bayestar.multiorder.fits,2",
"gracedb": "https://gracedb.ligo.org/superevents/S230723ac/view/"
},
"event": {
"far": 5.330244e-08,
"time": "2023-07-23T10:18:34.451Z",
"group": "CBC",
"search": "AllSky",
"area_50": 231.64504607828204,
"area_90": 1116.8900183647604,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0017307692307692308,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": true,
"skymap_hash": "8301d729ea3eae54c5c946f7aad87725",
"classification": {
"BBH": 0.867174107,
"BNS": 0.0,
"NSBH": 1.6473e-05,
"Terrestrial": 0.132809417
},
"skymap_version": 2,
"central_frequency": null
},
"alert_type": "UPDATE",
"sequence_num": 4,
"time_created": "2023-07-24T01:40:26Z",
"superevent_id": "S230723ac",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-24T01:40:27.085976Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-24T01:40:27.085998Z",
"modified": "2023-07-24T01:40:27.092223Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1502,
"topic": "gcn.circular",
"uuid": "88cf63cf-7487-4914-8d3f-a7c963196005",
"title": "LIGO/Virgo/KAGRA S230723ac: Updated Sky localization",
"submitter": "Hop gcn.circular",
"authors": "Soichiro Morisaki at U. of Tokyo <soichiro.morisaki@ligo.org>",
"data": {
"date": "23/07/24 02:22:18 GMT",
"from": "Soichiro Morisaki at U. of Tokyo <soichiro.morisaki@ligo.org>",
"title": "GCN CIRCULAR",
"number": "34245",
"subject": "LIGO/Virgo/KAGRA S230723ac: Updated Sky localization"
},
"message_text": "The LIGO Scientific Collaboration, the Virgo Collaboration, and the\nKAGRA Collaboration report:\n\nWe have conducted further analysis of the LIGO Hanford Observatory\n(H1) and LIGO Livingston Observatory (L1) data around the time of the\ncompact binary merger (CBC) candidate S230723ac (GCN Circular 34235). Parameter estimation has been\nperformed using Bilby [1] and a new sky map, Bilby.multiorder.fits,0,\ndistributed via GCN Notice, is available for retrieval from the\nGraceDB event page:\n\nhttps://gracedb.ligo.org/superevents/S230723ac\n\nFor the Bilby.multiorder.fits,0 sky map, the 90% credible region is\n1117 deg2. Marginalized over the whole sky, the a posteriori\nluminosity distance estimate is 1551 +/- 436 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\n [1] Ashton et al. ApJS 241, 27 (2019)\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMTY1MzQ0LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.yElZrquEqCF3lRobKaYGqKcwVg-xfBV-554yuyanSjA\n\n",
"published": "2023-07-24T02:22:30.466696Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-24T02:22:30.466716Z",
"modified": "2023-07-24T02:22:30.474993Z",
"nonlocalizedevents": [
{
"event_id": "S230723a"
}
],
"targets": []
},
{
"id": 1503,
"topic": "gcn.circular",
"uuid": "a3b622cd-6aa1-43bb-b1d8-ae42cfda3bf6",
"title": "IceCube Alert 230724.08: 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": "23/07/24 02:26:24 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"title": "GCN CIRCULAR",
"number": "34246",
"subject": "IceCube Alert 230724.08: 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 IceCube Alert 230724.08 (trigger No 66037171,02h 11m 19.20s , -02d 20m 13.2s, R=0.67) errorbox 25 sec after notice time and 73 sec after trigger time at 2023-07-24 01:50:26 UT, with upper limit up to 18.0 mag. The observations began at zenith distance = 50 deg. The sun altitude is -47.0 deg.\n\nThe galactic latitude b = -58 deg., longitude l = 165 deg.\n\n\nReal time updated cover map and OT discovered available here:\nhttps://master.sai.msu.ru/site/master2/observ.php?id\"44110\n\nWe obtain a following upper limits.\n\nTmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n 78 | 2023-07-24 01:50:26 | MASTER-SAAO | (02h 09m 45.48s , -02d 35m 21.4s) | P\\\\ | 10 | 15.9 |\n 108 | 2023-07-24 01:50:26 | MASTER-SAAO | (02h 09m 45.47s , -02d 35m 21.3s) | P\\\\ | 70 | 17.3 | Coadd\n 78 | 2023-07-24 01:50:26 | MASTER-SAAO | (02h 09m 00.64s , -02d 33m 28.7s) | P/ | 10 | 15.9 |\n 108 | 2023-07-24 01:50:26 | MASTER-SAAO | (02h 09m 00.63s , -02d 33m 28.5s) | P/ | 70 | 17.1 | Coadd\n 123 | 2023-07-24 01:51:06 | MASTER-SAAO | (02h 09m 51.80s , -02d 36m 19.6s) | P\\\\ | 20 | 16.3 |\n 124 | 2023-07-24 01:51:06 | MASTER-SAAO | (02h 09m 06.99s , -02d 34m 27.0s) | P/ | 20 | 16.5 |\n 168 | 2023-07-24 01:51:46 | MASTER-SAAO | (02h 09m 46.03s , -02d 37m 20.1s) | P\\\\ | 30 | 15.7 |\n 168 | 2023-07-24 01:51:46 | MASTER-SAAO | (02h 09m 01.26s , -02d 35m 27.2s) | P/ | 30 | 16.1 |\n 223 | 2023-07-24 01:52:36 | MASTER-SAAO | (02h 09m 52.04s , -02d 37m 18.1s) | P\\\\ | 40 | 16.8 |\n 223 | 2023-07-24 01:52:36 | MASTER-SAAO | (02h 09m 07.27s , -02d 35m 25.2s) | P/ | 40 | 17.0 |\n 298 | 2023-07-24 01:53:46 | MASTER-SAAO | (02h 09m 04.11s , -02d 33m 31.8s) | P/ | 50 | 16.9 |\n 358 | 2023-07-24 01:53:46 | MASTER-SAAO | (02h 09m 04.06s , -02d 33m 31.5s) | P/ | 170 | 17.7 | Coadd\n 298 | 2023-07-24 01:53:46 | MASTER-SAAO | (02h 09m 48.88s , -02d 35m 23.5s) | P\\\\ | 50 | 16.7 |\n 358 | 2023-07-24 01:53:46 | MASTER-SAAO | (02h 09m 48.83s , -02d 35m 23.2s) | P\\\\ | 170 | 17.3 | Coadd\n 373 | 2023-07-24 01:54:55 | MASTER-SAAO | (02h 09m 48.80s , -02d 36m 49.1s) | P\\\\ | 60 | 17.5 |\n 373 | 2023-07-24 01:54:56 | MASTER-SAAO | (02h 09m 03.97s , -02d 34m 57.1s) | P/ | 60 | 17.1 |\n 464 | 2023-07-24 01:56:26 | MASTER-SAAO | (02h 09m 06.22s , -02d 33m 54.1s) | P/ | 60 | 17.1 |\n 464 | 2023-07-24 01:56:27 | MASTER-SAAO | (02h 09m 51.09s , -02d 35m 44.9s) | P\\\\ | 60 | 17.1 |\n 543 | 2023-07-24 01:57:46 | MASTER-SAAO | (02h 09m 46.55s , -02d 36m 14.9s) | P\\\\ | 60 | 16.7 |\n 603 | 2023-07-24 01:57:46 | MASTER-SAAO | (02h 09m 46.51s , -02d 36m 15.0s) | P\\\\ | 180 | 17.3 | Coadd\n 543 | 2023-07-24 01:57:46 | MASTER-SAAO | (02h 09m 01.68s , -02d 34m 23.2s) | P/ | 60 | 17.2 |\n 603 | 2023-07-24 01:57:46 | MASTER-SAAO | (02h 09m 01.64s , -02d 34m 23.4s) | P/ | 180 | 17.7 | Coadd\n 634 | 2023-07-24 01:59:17 | MASTER-SAAO | (02h 09m 00.08s , -02d 33m 23.3s) | P/ | 60 | 17.0 |\n 634 | 2023-07-24 01:59:17 | MASTER-SAAO | (02h 09m 44.97s , -02d 35m 13.9s) | P\\\\ | 60 | 16.8 |\n 724 | 2023-07-24 02:00:47 | MASTER-SAAO | (02h 09m 52.56s , -02d 36m 13.5s) | P\\\\ | 60 | 17.0 |\n 724 | 2023-07-24 02:00:47 | MASTER-SAAO | (02h 09m 07.62s , -02d 34m 22.2s) | P/ | 60 | 17.1 |\n 817 | 2023-07-24 02:02:20 | MASTER-SAAO | (02h 10m 08.38s , -02d 35m 25.7s) | P\\\\ | 60 | 16.8 |\n 877 | 2023-07-24 02:02:20 | MASTER-SAAO | (02h 10m 08.36s , -02d 35m 25.8s) | P\\\\ | 180 | 17.3 | Coadd\n 817 | 2023-07-24 02:02:20 | MASTER-SAAO | (02h 11m 04.16s , -02d 34m 17.0s) | P/ | 60 | 16.8 |\n 877 | 2023-07-24 02:02:20 | MASTER-SAAO | (02h 11m 04.15s , -02d 34m 17.1s) | P/ | 180 | 17.7 | Coadd\n 907 | 2023-07-24 02:03:50 | MASTER-SAAO | (02h 10m 13.31s , -02d 35m 14.9s) | P\\\\ | 60 | 16.8 |\n 907 | 2023-07-24 02:03:50 | MASTER-SAAO | (02h 11m 09.10s , -02d 34m 06.5s) | P/ | 60 | 17.0 |\n 986 | 2023-07-24 02:05:09 | MASTER-SAAO | (02h 10m 09.41s , -02d 33m 37.3s) | P\\\\ | 60 | 16.8 |\n 986 | 2023-07-24 02:05:09 | MASTER-SAAO | (02h 11m 05.23s , -02d 32m 29.4s) | P/ | 60 | 17.1 |\n 1077 | 2023-07-24 02:06:40 | MASTER-SAAO | (02h 11m 04.37s , -02d 33m 58.2s) | P/ | 60 | 17.0 |\n 1137 | 2023-07-24 02:06:40 | MASTER-SAAO | (02h 11m 04.38s , -02d 33m 58.5s) | P/ | 180 | 18.0 | Coadd\n 1077 | 2023-07-24 02:06:40 | MASTER-SAAO | (02h 10m 08.51s , -02d 35m 06.4s) | P\\\\ | 60 | 16.8 |\n 1137 | 2023-07-24 02:06:40 | MASTER-SAAO | (02h 10m 08.52s , -02d 35m 06.6s) | P\\\\ | 180 | 17.4 | Coadd\n 1157 | 2023-07-24 02:07:59 | MASTER-SAAO | (02h 11m 06.10s , -02d 32m 27.5s) | P/ | 60 | 17.0 |\n 1157 | 2023-07-24 02:07:59 | MASTER-SAAO | (02h 10m 10.23s , -02d 33m 34.8s) | P\\\\ | 60 | 17.1 |\n 1247 | 2023-07-24 02:09:29 | MASTER-SAAO | (02h 11m 00.43s , -02d 33m 01.8s) | P/ | 60 | 17.2 |\n 1247 | 2023-07-24 02:09:29 | MASTER-SAAO | (02h 10m 04.50s , -02d 34m 09.6s) | P\\\\ | 60 | 17.0 |\n 1337 | 2023-07-24 02:11:00 | MASTER-SAAO | (02h 11m 01.89s , -02d 32m 00.7s) | P/ | 60 | 17.4 |\n 1397 | 2023-07-24 02:11:00 | MASTER-SAAO | (02h 11m 01.88s , -02d 32m 00.4s) | P/ | 180 | 18.0 | Coadd\n 1337 | 2023-07-24 02:11:00 | MASTER-SAAO | (02h 10m 05.96s , -02d 33m 08.1s) | P\\\\ | 60 | 17.0 |\n 1397 | 2023-07-24 02:11:00 | MASTER-SAAO | (02h 10m 05.95s , -02d 33m 07.7s) | P\\\\ | 180 | 17.8 | Coadd\n 1417 | 2023-07-24 02:12:20 | MASTER-SAAO | (02h 11m 07.15s , -02d 32m 58.6s) | P/ | 60 | 17.3 |\n 1417 | 2023-07-24 02:12:20 | MASTER-SAAO | (02h 10m 11.22s , -02d 34m 06.5s) | P\\\\ | 60 | 17.0 |\n 1506 | 2023-07-24 02:13:49 | MASTER-SAAO | (02h 11m 00.29s , -02d 33m 57.6s) | P/ | 60 | 17.5 |\n 1506 | 2023-07-24 02:13:49 | MASTER-SAAO | (02h 10m 04.35s , -02d 35m 05.6s) | P\\\\ | 60 | 17.0 |\n 1586 | 2023-07-24 02:15:09 | MASTER-SAAO | (02h 11m 07.07s , -02d 33m 47.0s) | P/ | 60 | 17.4 |\n 1586 | 2023-07-24 02:15:09 | MASTER-SAAO | (02h 10m 11.11s , -02d 34m 54.8s) | P\\\\ | 60 | 17.0 |\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.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMTY1NTkwLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.Hz1VQJ2ceRGXuhmp0MKu-iwutL6MFc9hUpfNzKKJqdE\n\n",
"published": "2023-07-24T02:26:34.908856Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-24T02:26:34.908873Z",
"modified": "2023-07-24T02:26:34.915898Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1504,
"topic": "igwn.gwalert",
"uuid": "947df221-cdbf-4d8e-87b7-ddc0c326c3fe",
"title": "S230724d - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230724d/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230724d/view/"
},
"event": {
"far": 2.238295475837609e-05,
"time": "2023-07-24T03:25:50.314Z",
"group": "CBC",
"search": "AllSky",
"area_50": 654.2293964421046,
"area_90": 2333.236333687044,
"duration": null,
"pipeline": "gstlal",
"properties": {
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"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
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"L1"
],
"significant": false,
"skymap_hash": "6428d86784d8b8f897ec9af34a49b2bc",
"classification": {
"BBH": 0.0625364477413746,
"BNS": 3.4523091806171602e-15,
"NSBH": 2.2499925175807886e-13,
"Terrestrial": 0.937463552258397
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-07-24T03:26:14Z",
"superevent_id": "S230724d",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-24T03:26:16.000777Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-24T03:26:16.000796Z",
"modified": "2023-07-24T03:26:16.010173Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1505,
"topic": "igwn.gwalert",
"uuid": "b65c62d3-7b43-4e83-95a0-df00cfefc987",
"title": "S230724d - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230724d/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230724d/view/"
},
"event": {
"far": 2.238295475837609e-05,
"time": "2023-07-24T03:25:50.314Z",
"group": "CBC",
"search": "AllSky",
"area_50": 654.2293964421046,
"area_90": 2333.236333687044,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "6428d86784d8b8f897ec9af34a49b2bc",
"classification": {
"BBH": 0.0625364477413746,
"BNS": 3.4523091806171602e-15,
"NSBH": 2.2499925175807886e-13,
"Terrestrial": 0.937463552258397
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-24T03:30:49Z",
"superevent_id": "S230724d",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-24T03:30:50.534658Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-24T03:30:50.534678Z",
"modified": "2023-07-24T03:30:50.541494Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1506,
"topic": "igwn.gwalert",
"uuid": "921fa64f-0c1f-4bab-a8f3-6264784c2a74",
"title": "S230724h - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230724h/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230724h/view/"
},
"event": {
"far": 1.31444e-05,
"time": "2023-07-24T05:20:33.644Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1184.8728036268649,
"area_90": 5321.541357461404,
"duration": 0.010695,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "a30caf1421f635a74f0b77752999bd32",
"classification": {},
"skymap_version": 0,
"central_frequency": 36.804157
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-07-24T05:24:03Z",
"superevent_id": "S230724h",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-24T05:24:04.890331Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-24T05:24:04.890352Z",
"modified": "2023-07-24T05:24:04.898453Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1507,
"topic": "igwn.gwalert",
"uuid": "69d0b70c-dbde-4bd3-a9e7-3d922eea832b",
"title": "S230724h - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
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"gracedb": "https://gracedb.ligo.org/superevents/S230724h/view/"
},
"event": {
"far": 1.31444e-05,
"time": "2023-07-24T05:20:33.644Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1184.8728036268649,
"area_90": 5321.541357461404,
"duration": 0.010695,
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"skymap_hash": "a30caf1421f635a74f0b77752999bd32",
"classification": {},
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"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-24T05:28:38Z",
"superevent_id": "S230724h",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-24T05:28:39.295986Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-24T05:28:39.296006Z",
"modified": "2023-07-24T05:28:39.301903Z",
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{
"id": 1508,
"topic": "igwn.gwalert",
"uuid": "205a82ad-d676-414e-b5de-6255f7d2145b",
"title": "S230724j - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"modified": "2023-07-24T05:56:59.063201Z",
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{
"id": 1509,
"topic": "igwn.gwalert",
"uuid": "1aba0881-e639-42bb-8477-f70451ab5d06",
"title": "S230724j - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"sequence_num": 2,
"time_created": "2023-07-24T06:01:32Z",
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"published": "2023-07-24T06:01:33.680976Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-24T06:01:33.680996Z",
"modified": "2023-07-24T06:01:33.687065Z",
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},
{
"id": 1510,
"topic": "igwn.gwalert",
"uuid": "f91a1961-71db-433b-a6bc-b89dc1888519",
"title": "S230724v - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230724v/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230724v/view/"
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"time": "2023-07-24T08:24:47.462Z",
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"area_90": 14032.989747930713,
"duration": null,
"pipeline": "spiir",
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"sequence_num": 1,
"time_created": "2023-07-24T08:25:11Z",
"superevent_id": "S230724v",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-24T08:25:13.520995Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-24T08:25:13.521028Z",
"modified": "2023-07-24T08:25:13.530359Z",
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},
{
"id": 1511,
"topic": "igwn.gwalert",
"uuid": "364512d0-603c-4f54-b036-1882541517fd",
"title": "S230724v - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230724v/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230724v/view/"
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"time": "2023-07-24T08:24:47.462Z",
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"area_90": 14032.989747930713,
"duration": null,
"pipeline": "spiir",
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"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-24T08:29:46Z",
"superevent_id": "S230724v",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-24T08:29:47.291444Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-24T08:29:47.291477Z",
"modified": "2023-07-24T08:29:47.297585Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1512,
"topic": "hermes.message",
"uuid": "0fd2d2ed-f6b8-4cfb-acb2-67a6a5aa32f1",
"title": "INTEGRAL follow-up of S230724v",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230724v at 2023-07-24T08:24:47.000\n\n\nSPI-ACS excesses:\nat T0+-8.8 FAP = 0.081\nat T0+19.2 FAP = 0.161\nat T0+-34.15 FAP = 0.421\nat T0+97.35 FAP = 0.642\nat T0+205.78 FAP = 0.671\nat T0+-25.0 FAP = 0.685\nat T0+-15.25 FAP = 0.847\nat T0+-33.3 FAP = 0.908\n\n\n\n\nnext break in data in 28 hr: 2023-07-25T12:36:28, for 9.3 hr",
"published": "2023-07-24T08:37:37.296408Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-07-24T08:37:37.296438Z",
"modified": "2023-07-24T08:37:37.302780Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1513,
"topic": "gcn.circular",
"uuid": "c2a200b4-f491-4ea8-ba9a-ec3140b5e608",
"title": "GRB 230723B: non-detections from Observatoire de Haute-Provence",
"submitter": "Hop gcn.circular",
"authors": "Emeric Le Floc'h at CEA-Saclay <emeric.lefloch@cea.fr>",
"data": {
"date": "23/07/24 09:43:47 GMT",
"from": "Emeric Le Floc'h at CEA-Saclay <emeric.lefloch@cea.fr>",
"title": "GCN CIRCULAR",
"number": "34247",
"subject": "GRB 230723B: non-detections from Observatoire de Haute-Provence"
},
"message_text": "C. Adami (LAM), J.-C. Cuillandre (CEA Paris-Saclay), M. Ollivier, H. Dole (IAS, Université Paris-Saclay), T. Adami (ENS Paris-Saclay), A. de Ugarte Postigo (OCA/CNRS), E. Le Flocâh, D. Götz (CEA Paris-Saclay), A.Saccardi, S.Vergani (GEPI, Obs. de Paris), S. Basa (LAM), report on behalf of a larger collaboration :\n\nWe observed the field of GRB 230723B (Page et al. GCN 34234) using the T193cm and T120cm telescopes at Observatoire de Haute-Provence (France). We obtained 26 exposures in the râ-band (4x30sec + 22x150sec) with MISTRAL on the T193cm for a total exposure time of 57min, starting at 20:54 UT with a mean epoch at ~0.42days after trigger. At the same time we also obtained 10 exposures of 6min in the I-band at T120cm (total time of 1h). In the râ-band and I-band combined frames, we do not detect any new source within the XRT error box (Page & Evans, GCN 34238). Our photometric calibration was performed using nearby stars from the PanSTARRS catalog, leading to the following lower limits :\n\nrâ > 21 mag (AB, 3 sigma)\nI > 19.25 mag (AB, 3 sigma)\n\nThese non-detections are consistent with the CAHA deeper observations in the i-band reported earlier by Agui Fernandez et al. (GCN 34241).\n\nWe acknowledge the excellent support from Observatoire de Haute-Provence, in particular Yoann Degot-Longhi, and we also thank Alice Morel.\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMTkxODMzLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.c0BG55A9KE_uoFY0jiU9R0Xk9TMIMohfH-QltkBLmZg\n\n",
"published": "2023-07-24T09:44:03.173975Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-24T09:44:03.173993Z",
"modified": "2023-07-24T09:44:03.180263Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1514,
"topic": "igwn.gwalert",
"uuid": "11ac8fe6-8286-4dec-b30b-31a46261b25e",
"title": "S230724ad - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
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"sequence_num": 1,
"time_created": "2023-07-24T10:10:07Z",
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"published": "2023-07-24T10:10:08.573462Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-24T10:10:08.573498Z",
"modified": "2023-07-24T10:10:08.580073Z",
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},
{
"id": 1515,
"topic": "igwn.gwalert",
"uuid": "596de7e7-ab2d-4060-be0d-4fa9b6f574d9",
"title": "S230724ad - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230724ad/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230724ad/view/"
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"sequence_num": 2,
"time_created": "2023-07-24T10:14:42Z",
"superevent_id": "S230724ad",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-24T10:14:44.159723Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-24T10:14:44.159765Z",
"modified": "2023-07-24T10:14:44.166237Z",
"nonlocalizedevents": [],
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},
{
"id": 1516,
"topic": "gcn.circular",
"uuid": "d4eb1224-626a-40fa-b895-4c06f1a5fff7",
"title": "GRB 230723B: Swift-XRT refined Analysis",
"submitter": "Hop gcn.circular",
"authors": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
"data": {
"date": "23/07/24 12:37:25 GMT",
"from": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
"title": "GCN CIRCULAR",
"number": "34248",
"subject": "GRB 230723B: Swift-XRT refined Analysis"
},
"message_text": "J.P. Osborne (U. Leicester), K.L. Page (U. Leicester), V. D'Elia (SSDC\n& INAF-OAR), B. Sbarufatti (INAF-OAB), A. D'Ai (INAF-IASFPA), D.N.\nBurrows (PSU), J. D. Gropp (PSU), S. Dichiara (PSU),\n and P.A. Evans report on behalf of the Swift-XRT team:\n\nWe have analysed 6.5 ks of XRT data for GRB 230723B, from 3.3 ks to\n28.6 ks after the BAT trigger. The data are entirely in Photon\nCounting (PC) mode. Using 1149 s of PC mode data and 3 UVOT images, we\nfind an enhanced XRT position (using the XRT-UVOT alignment and\nmatching UVOT field sources to the USNO-B1 catalogue): RA, Dec 250.37810, -5.33463 which is equivalent to:\n\nRA (J2000): 16h 41m 30.74s\nDec(J2000): -05d 20' 04.7\"\n\nwith an uncertainty of 2.4 arcsec (radius, 90% confidence).\n\nThe light curve can be modelled with a power-law decay with a decay\nindex of alpha=1.6 (+0.6, -0.4).\n\nA spectrum formed from the PC mode data can be fitted with an absorbed\npower-law with a photon spectral index of 2.4 (+0.6, -0.5). The\nbest-fitting absorption column is 6.8 (+4.5, -3.3) x 10^21 cm^-2, in\nexcess of the Galactic value of 2.2 x 10^21 cm^-2 (Willingale et al.\n2013). The counts to observed (unabsorbed) 0.3-10 keV flux conversion\nfactor deduced from this spectrum is 4.0 x 10^-11 (9.4 x 10^-11) erg\ncm^-2 count^-1.\n\nA summary of the PC-mode spectrum is thus:\nTotal column:\t 6.8 (+4.5, -3.3) x 10^21 cm^-2\nGalactic foreground: 2.2 x 10^21 cm^-2\nExcess significance: 2.3 sigma\nPhoton index:\t 2.4 (+0.6, -0.5)\n\nThe results of the XRT-team automatic analysis are available at\nhttp://www.swift.ac.uk/xrt_products/01180410.\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.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMjAyMjUwLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.Q-3zhqA_DXTw6jMQRl-UaMxdNVGbRhax1HgrA_Kaxs4\n\n",
"published": "2023-07-24T12:37:36.237293Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-24T12:37:36.237320Z",
"modified": "2023-07-24T12:37:36.251473Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1517,
"topic": "gcn.circular",
"uuid": "7f2a59c1-8ec8-46d0-8d3d-13fa6da4c385",
"title": "GRB 230723B: Fermi GBM observation",
"submitter": "Hop gcn.circular",
"authors": "Joe Mangan at IJCLab <joseph.mangan@ijclab.in2p3.fr>",
"data": {
"date": "23/07/24 14:00:22 GMT",
"from": "Joe Mangan at IJCLab <joseph.mangan@ijclab.in2p3.fr>",
"title": "GCN CIRCULAR",
"number": "34249",
"subject": "GRB 230723B: Fermi GBM observation"
},
"message_text": "J.Mangan (CNRS/IJCLab) and C. Meegan (UAH) report on behalf of the Fermi GBM Team:\n\nAt 11:42:33.03 UT on 23 July 2023, the Fermi Gamma-Ray Burst Monitor (GBM)\ntriggered and located GRB 230723B (trigger 711805358 / 230723488),\nwhich was also detected by Swift BAT (K. L. Page et al. 2023, GCN 34234).\nThe Fermi GBM on-ground location is consistent with the Swift BAT position.\n\nThe angle from the Fermi LAT boresight at the GBM trigger time is 78 degrees.\n\nThe GBM light curve consists of a single peak\nwith a duration (T90) of about 10 s (50-300 keV).\nThe time-averaged spectrum from T0-2 s to T0+9 s is\nbest fit by a power law function with an exponential\nhigh-energy cutoff. The power law index is -0.9 +/- 0.1 and\nthe cutoff energy, parameterized as Epeak, is 59.1 +/- 2.7 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(3.8 +/- 0.2)E-06 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+1.2 s in the 10-1000 keV band\nis 7.8 +/- 0.4 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog:\nhttps://heasarc.gsfc.nasa.gov/W3Browse/fermi/fermigbrst.html\n\nFor Fermi GBM data and info, please visit the official Fermi GBM Support Page:\nhttps://fermi.gsfc.nasa.gov/ssc/data/access/gbm/\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMjA3MjI4LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.9K-UoGu2E5wmvShZJENsiSSJ04A0A7iyafBJJiMadvw\n\n",
"published": "2023-07-24T14:00:33.836734Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-24T14:00:33.836752Z",
"modified": "2023-07-24T14:00:33.845178Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1518,
"topic": "gcn.circular",
"uuid": "951066c1-0e4b-443a-aacf-660d1f27f5b5",
"title": "GRB 230723B: Bassano Bresciano Observatory upper limit",
"submitter": "Hop gcn.circular",
"authors": "Ulisse Quadri at Bassano Bresciano Obs <oabb@ulisse.bs.it>",
"data": {
"date": "23/07/24 15:54:42 GMT",
"from": "Ulisse Quadri at Bassano Bresciano Obs <oabb@ulisse.bs.it>",
"title": "GCN CIRCULAR",
"number": "34250",
"subject": "GRB 230723B: Bassano Bresciano Observatory upper limit"
},
"message_text": "U.Quadri and L.Strabla (Bassano Bresciano Astronomical Observatory),\nin a large collaboration with:\nM.G. Dainotti (National Astronomical Observatory of Japan),\nY. Niino (Tokyo University, Institute of Astronomy),\nK. Kalinowski (Aarhus University, Department of Physics and Astronomy),\nB. De Simone (Universita' degli Studi Di Salerno)\nreport:\n\nWe imaged the field of GRB 230723B detected by SWIFT(trigger 1180410)\nwith the robotic telescope of (IAU station 565) Bassano Bresciano\nObservatory, Italy. Member of:\nAAVSO - American Association of Variable Star Observers.\nUAI/SSV - Unione Astrofili Italiani/sezione stelle variabili.\nGAC - Gruppo Astrofili Cremonesi.\n\nThe observations started 518 min after the GRB trigger, at the end of twilight,\nwith our Newton telescope D%0 mm F/D=4.8.\n\nWeather conditions were medium.\n\nWe co-added 70 exposures of 120 sec each.\n\nStart T0+ End T0+ R lim\n518.43 min 598.40 min 19\n\nWe did not found any optical counterpart in the error box of the XRTcandidate.\nPage et al. GCN 34234\n\nMagnitudes were estimated with the Gaia DR2 cat. and\nare not corrected for galactic dust extinction.\n\nReference:\nhttp://www.osservatoriobassano.org/GRB.asp\n\nThe message may be cited.\n\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMjE0MDg4LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.ExUlGx4EJ1_HA1jHuptvJnJpz7d0haoWPGTc8MzcMZI\n\n",
"published": "2023-07-24T15:54:58.096107Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-24T15:54:58.096127Z",
"modified": "2023-07-24T15:54:58.103292Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1519,
"topic": "gcn.circular",
"uuid": "3110977b-b388-413a-9bfa-e723a95d50ba",
"title": "GRB 230723B: Optical afterglow candidate from CAHA",
"submitter": "Hop gcn.circular",
"authors": "Antonio de Ugarte Postigo at OCA <deugarte@oca.eu>",
"data": {
"date": "23/07/24 17:05:45 GMT",
"from": "Antonio de Ugarte Postigo at OCA <deugarte@oca.eu>",
"title": "GCN CIRCULAR",
"number": "34251",
"subject": "GRB 230723B: Optical afterglow candidate from CAHA"
},
"message_text": "J.F. Agui Fernandez (IAA-CSIC), A. de Ugarte Postigo (OCA/CNRS), C.C. Thoene (ASU-CAS), M. Blazek and Ana Guijarro Roman (CAHA) report:\n\nAfter XRT delivered its refined analysis and updated GRB localisation (Osborne et al. GCN 34248) we noticed that the new localisation has very little overlap with the fist one. The revised localisation is no longer consistent with the object mentioned in our previous GCN (Agui Fernandez et al. GCN 34241). However, within the new localisation circle and outside the original one, we detect an object at coordinates (J2000): 16:41:30.65 -5:20:04.5 with an AB magnitude of i = 22.4+/-0.2 mag as compared to PanSTARRS field objects. No object is detected in PanSTARRS at this position. Further observations will be needed to confirm the object variability and its possible identification as the optical counterpart of GRB 230723A.\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMjE4MzUwLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.5RGOrs4BlTK6o3Uip0Hma5rn8Ri1NJ5JsvoPJepD7ao\n\n",
"published": "2023-07-24T17:05:55.708686Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-24T17:05:55.708704Z",
"modified": "2023-07-24T17:05:55.717634Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1520,
"topic": "gcn.circular",
"uuid": "bf38dda2-c369-44d9-a8a5-c48e00991b35",
"title": "GRB 230723B: Montarrenti Observatory upper limit",
"submitter": "Hop gcn.circular",
"authors": "Simone Leonini at Montarrenti Observatory (Siena, Italy) <s.leonini@iol.it>",
"data": {
"date": "23/07/24 18:30:42 GMT",
"from": "Simone Leonini at Montarrenti Observatory (Siena, Italy) <s.leonini@iol.it>",
"title": "GCN CIRCULAR",
"number": "34252",
"subject": "GRB 230723B: Montarrenti Observatory upper limit"
},
"message_text": "S. Leonini, M. Conti, P. Rosi, L.M. Tinjaca Ramirez and L. Bellizzi (Montarrenti Observatory, Siena, Italy) report:\n\nWe observed the field of the GRB 230723B (Trigger 1180410, K.L. Page et al., GCN 34234, V. Lipunov, GCN 34239; J.F. Agui Fernandez, GCN 34241; C. Adami, GCN 34247; U. Quadri, GCN 34250; J.F. Agui Fernandez, GCN 34251) with the automatic 0.53m Ritchey-Chretien telescope + U47 detector at Montarrenti Observatory (Siena, Italy, IAU code C88).\n\nThe observations were started under good weather conditions at 2023-07-23 21:13:37 UT (approximately 9.5 hours after notice) stacking 30x30s clear filter CCD exposures.\n\nWe have not found optical transient within the error-box of the Neil Gehrels Swift Observatory position (RA 16h 41m 30.74s, Dec. -05d 20m 04.7s - J2000).\nMag. upper limit R = 20.83 +/-0.14\n\nMagnitudes were obtained from USNO-B1 catalogue and 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.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMjIzNDQ3LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.P1toW7L5wraRfGpbU_hBToYMMTZcbg7K1PgvdsVWm3Y\n\n",
"published": "2023-07-24T18:30:52.750939Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-24T18:30:52.750970Z",
"modified": "2023-07-24T18:30:52.759757Z",
"nonlocalizedevents": [],
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},
{
"id": 1521,
"topic": "hermes.message",
"uuid": "90ad036c-e695-4e47-bc48-f433594afc8c",
"title": "INTEGRAL follow-up of S230724ad",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230724ad at 2023-07-24T10:09:41.000\n\n\nSPI-ACS excesses:\nat T0+-43.12 FAP = 0.117\nat T0+10.28 FAP = 0.165\nat T0+-3.32 FAP = 0.213\nat T0+95.93 FAP = 0.271\nat T0+1.53 FAP = 0.281\nat T0+106.93 FAP = 0.313\nat T0+174.86 FAP = 0.404\n\n\n\n\nnext break in data in 26 hr: 2023-07-25T12:36:28, for 9.3 hr",
"published": "2023-07-24T20:14:25.216207Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-07-24T20:14:25.216242Z",
"modified": "2023-07-24T20:14:25.225703Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1522,
"topic": "gcn.circular",
"uuid": "7f2e99df-544d-4c42-a352-09bef7193814",
"title": "GRB 230723B: Osservatorio Astronomico Nastro Verde upper limit",
"submitter": "Hop gcn.circular",
"authors": "Nello Ruocco at Osservatorio Nastro Verde - Sorrento (Naples) - Italy - MPC Code C82 <osservatorionastroverde@gmail.com>",
"data": {
"date": "23/07/24 20:20:44 GMT",
"from": "Nello Ruocco at Osservatorio Nastro Verde - Sorrento (Naples) - Italy - MPC Code C82 <osservatorionastroverde@gmail.com>",
"title": "GCN CIRCULAR",
"number": "34253",
"subject": "GRB 230723B: Osservatorio Astronomico Nastro Verde upper limit"
},
"message_text": "Nello Ruocco at Osservatorio Nastro Verde - Sorrento (Naples) - Italy\nin a large collaboration with:\nM.G. Dainotti (National Astronomical Observatory of Japan),\nY. Niino (Tokyo University, Institute of Astronomy),\nK. Kalinowski (Aarhus University, Department of Physics and Astronomy),\nB. De Simone (Universita' degli Studi Di Salerno)\nreport:\n\nWe image the field of GRB 230723B detected by SWIFT(trigger 1180410)\nwith telescope of Nastro Verde Observatory - Sorrento (Naples), Italy. Member of:\nAAVSO - American Association of Variable Star Observers.\nUAI/SSV - Unione Astrofili Italiani/sezione stelle variabili.\nAstroCampania Associazione\n\nThe observations started at 19:19 UT of 2023/07/23, after 7,40 hours after the GRB trigger, at the end of twilight\nwith principal telescope SC 0.35 f/10 with focal reduced + CCD Sbig ST10 XME\nI took 32 image of 60 sec each. All images are unfiltered, calibrated with masterdark and masterflat,stacked with Tycho Tracker software\nWe have not detected any clearly visible sources, up to 20th magnitude with clear skies.\n Start T0+ End T0+ Rlim\n19:19:39 UT 19:54:47 UT 20\n\nWe did not found any optical counterpart in the error box of the XRTcandidate.\nPage et al. GCN 34234\n\n\n\nMagnitudes were estimated with the Gaia DR2 cat. and\nare not corrected for galactic dust extinction.\n\n\n\nThe message may be cited.\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMjMwMDUwLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.SoQjHxNoNxSqBUuNEbbtZCYHzJw14UM1oeF1SUUUHKQ\n\n",
"published": "2023-07-24T20:20:56.458411Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-24T20:20:56.458428Z",
"modified": "2023-07-24T20:20:56.464876Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1523,
"topic": "gcn.circular",
"uuid": "3053b81b-a418-4054-8b73-845bee8f6b02",
"title": "GRB 230723B: Leavitt Observatory upper limit",
"submitter": "Hop gcn.circular",
"authors": "leavittob@gmail.com",
"data": {
"date": "23/07/24 20:32:05 GMT",
"from": "leavittob@gmail.com",
"title": "GCN CIRCULAR",
"number": "34254",
"subject": "GRB 230723B: Leavitt Observatory upper limit"
},
"message_text": "E. Pavoni and L. Moretti (Leavitt Observatory), in a large collaboration with:\nM.G. Dainotti (National Astronomical Observatory of Japan),\nY. Niino (Tokyo University, Institute of Astronomy),\nK. Kalinowski (Aarhus University, Department of Physics and Astronomy),\nB. De Simone (Universita' degli Studi Di Salerno)\nreport:\n\nWe imaged the field of GRB 230723B detected by SWIFT(trigger 1180410)\nwith telescope of Leavitt Observatory, Italy. Member of:\nUAI/SSV - Unione Astrofili Italiani/sezione stelle variabili.\nATA - Associazione Tuscolana di Astronomia.\n\nThe observations began at 21:31 UT on 2023/07/23, 577 min after the GRB trigger, with our RC telescope D%0 mm F/D=8.\n\nWeather conditions were medium.\n\nWe took 30 images of 120 sec each. All images are unfiltered, calibrated with master dark and master flat, stacked with ASTAP software.\n\nWe have not detected any clearly visible sources, up to 19.9th magnitude with clear sky at\nRA(J2000) = 16h 41m 43.83s\nDec(J2000) = -05d 17' 16.04\"\n\non a field of view 31.1 x 26.8 arcmin\n\nStart End Rlim\n577 min 637 min 19.9\n\nMagnitudes were estimated with the Gaia DR3 cat. and are not corrected for galactic dust extinction.\n\nThe message may be cited.\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMjMwNzMxLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.tgpQMW_enE7Z4SoJHrI5dncLsBuElxPtnmgy9hntPTk\n\n",
"published": "2023-07-24T20:32:16.720233Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-24T20:32:16.720250Z",
"modified": "2023-07-24T20:32:16.726210Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1524,
"topic": "igwn.gwalert",
"uuid": "f5a740b0-e917-4983-a6fe-bfe37d6da5ae",
"title": "S230724ah - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"time": "2023-07-24T21:29:35.484Z",
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"time_created": "2023-07-24T21:30:47Z",
"superevent_id": "S230724ah",
"external_coinc": null
},
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"published": "2023-07-24T21:30:48.798293Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-24T21:30:48.798314Z",
"modified": "2023-07-24T21:30:48.804204Z",
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},
{
"id": 1525,
"topic": "igwn.gwalert",
"uuid": "0d3fceb7-551c-4351-a0ee-cb8cc040f320",
"title": "S230724ah - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
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"time": "2023-07-24T21:29:35.484Z",
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"sequence_num": 2,
"time_created": "2023-07-24T21:35:22Z",
"superevent_id": "S230724ah",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-24T21:35:23.245458Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-24T21:35:23.245479Z",
"modified": "2023-07-24T21:35:23.251589Z",
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},
{
"id": 1526,
"topic": "igwn.gwalert",
"uuid": "4275b923-d457-4156-8dbf-6014834566c4",
"title": "S230724ak - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230724ak/files/bayestar.multiorder.fits,0",
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"time": "2023-07-24T22:02:54.089Z",
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"area_50": 2648.810744286443,
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"duration": null,
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"time_created": "2023-07-24T22:03:19Z",
"superevent_id": "S230724ak",
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},
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"published": "2023-07-24T22:03:21.050974Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-24T22:03:21.050996Z",
"modified": "2023-07-24T22:03:21.057185Z",
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{
"id": 1527,
"topic": "igwn.gwalert",
"uuid": "8803f381-0652-4543-ad35-e3179cd06f1f",
"title": "S230724ak - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
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"duration": null,
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"sequence_num": 2,
"time_created": "2023-07-24T22:07:54Z",
"superevent_id": "S230724ak",
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},
"message_text": "",
"published": "2023-07-24T22:07:54.787325Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-24T22:07:54.787346Z",
"modified": "2023-07-24T22:07:54.793641Z",
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{
"id": 1528,
"topic": "igwn.gwalert",
"uuid": "7d2babbc-73e2-4571-a936-561c9799755c",
"title": "S230724al - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"time_created": "2023-07-24T22:13:09Z",
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},
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"published": "2023-07-24T22:13:11.297648Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-24T22:13:11.297669Z",
"modified": "2023-07-24T22:13:11.303504Z",
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},
{
"id": 1529,
"topic": "igwn.gwalert",
"uuid": "a2219651-ff39-4311-8725-08c2beeeb1d8",
"title": "S230724al - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"title": "S230725d - PRELIMINARY",
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"id": 1534,
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"title": "GRB 230725A: Fermi GBM Final Real-time Localization",
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"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-25T11:05:15.192042Z",
"modified": "2023-07-25T11:05:15.198260Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1541,
"topic": "gcn.circular",
"uuid": "f838ddcb-0986-40fe-9ebd-072c52e1629d",
"title": "GRB 230725B: Fermi GBM Final Real-time Localization",
"submitter": "Hop gcn.circular",
"authors": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
"data": {
"date": "23/07/25 13:08:51 GMT",
"from": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
"title": "GCN CIRCULAR",
"number": "34256",
"subject": "GRB 230725B: Fermi GBM Final Real-time Localization"
},
"message_text": "The Fermi GBM team reports the detection of a likely LONG GRB\n\nAt 12:58:19 UT on 25 Jul 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230725B (trigger 711982704.317538 / 230725540).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 30.2, Dec = 47.8 (J2000 degrees, equivalent to J2000 02h 00m, 47d 47'), with a statistical uncertainty of 1.0 degrees.\n\nThe angle from the Fermi LAT boresight is 2.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230725540/quicklook/glg_skymap_all_bn230725540.png\n\nThe HEALPix FITS file, including the estimated localization systematic, can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230725540/quicklook/glg_healpix_all_bn230725540.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230725540/quicklook/glg_lc_medres34_bn230725540.gif\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMjkwNTM3LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.L_CKy-TiLO1-awRZGaI-9zgVZDmA_io1VdzJJdeUe18\n\n",
"published": "2023-07-25T13:09:02.285249Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-25T13:09:02.285276Z",
"modified": "2023-07-25T13:09:02.293661Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1542,
"topic": "igwn.gwalert",
"uuid": "0c2b7543-3aa9-40a7-a14f-f4c7c3f3f827",
"title": "S230725am - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230725am/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230725am/view/"
},
"event": {
"far": 4.974583e-07,
"time": "2023-07-25T13:16:48.893Z",
"group": "CBC",
"search": "AllSky",
"area_50": 858.8072224623265,
"area_90": 3414.246548719027,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.25605261830400217,
"HasMassGap": 0.09445463282150589,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "248aa69537a3dc34087544d008540fbe",
"classification": {
"BBH": 0.501549467,
"BNS": 0.0,
"NSBH": 0.000629434,
"Terrestrial": 0.497821102
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-07-25T13:17:17Z",
"superevent_id": "S230725am",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-25T13:17:18.611655Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-25T13:17:18.611677Z",
"modified": "2023-07-25T13:17:18.618018Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1543,
"topic": "igwn.gwalert",
"uuid": "f6250097-c1fc-4031-9f25-bdb4392ee791",
"title": "S230725am - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230725am/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230725am/view/"
},
"event": {
"far": 4.974583e-07,
"time": "2023-07-25T13:16:48.893Z",
"group": "CBC",
"search": "AllSky",
"area_50": 858.8072224623265,
"area_90": 3414.246548719027,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.25605261830400217,
"HasMassGap": 0.09445463282150589,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "248aa69537a3dc34087544d008540fbe",
"classification": {
"BBH": 0.501549467,
"BNS": 0.0,
"NSBH": 0.000629434,
"Terrestrial": 0.497821102
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-25T13:21:51Z",
"superevent_id": "S230725am",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-25T13:21:52.270433Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-25T13:21:52.270455Z",
"modified": "2023-07-25T13:21:52.276800Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1544,
"topic": "gcn.circular",
"uuid": "e732be12-c18d-42c2-b85a-d65d09afd110",
"title": "Fermi Gamma-ray Burst Monitor trigger 711982704/230725540 is not a GRB",
"submitter": "Hop gcn.circular",
"authors": "Elisabetta Bissaldi at Politecnico and INFN Bari <elisabetta.bissaldi@ba.infn.it>",
"data": {
"date": "23/07/25 13:27:42 GMT",
"from": "Elisabetta Bissaldi at Politecnico and INFN Bari <elisabetta.bissaldi@ba.infn.it>",
"title": "GCN CIRCULAR",
"number": "34257",
"subject": "Fermi Gamma-ray Burst Monitor trigger 711982704/230725540 is not a GRB"
},
"message_text": "E. Bissaldi (Politecnico and INFN Bari)\nreports on behalf of the Fermi GBM Team:\n\n\"The Fermi Gamma-ray Burst Monitor (GBM) trigger 711982704/230725540\nat 12:58:19.32 UT on 25 July 2023, tentatively classified as a GRB, is in fact not due to a GRB.\nThis trigger is likely due to Local Particles.\"\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMjkxNjY3LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.E8j1efchq8Y254RiYHwczMjggdzC6nCTnwPYYbO76Yw\n\n",
"published": "2023-07-25T13:27:53.137572Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-25T13:27:53.137597Z",
"modified": "2023-07-25T13:27:53.143842Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1545,
"topic": "igwn.gwalert",
"uuid": "a5381b30-c007-465c-8dc6-49025d8dda24",
"title": "S230725an - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230725an/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230725an/view/"
},
"event": {
"far": 5.54965e-06,
"time": "2023-07-25T13:25:29.559Z",
"group": "Burst",
"search": "BBH",
"area_50": 1750.7665439104942,
"area_90": 9069.407130151869,
"duration": 0.016661,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "e82bf9ef73305169c4223907dc22f574",
"classification": {},
"skymap_version": 0,
"central_frequency": 28.309725
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-07-25T13:28:20Z",
"superevent_id": "S230725an",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-25T13:28:21.208497Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-25T13:28:21.208517Z",
"modified": "2023-07-25T13:28:21.214621Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1546,
"topic": "igwn.gwalert",
"uuid": "1cdcdef1-ebdd-4641-9f1c-3988f1234289",
"title": "S230725an - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230725an/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230725an/view/"
},
"event": {
"far": 5.54965e-06,
"time": "2023-07-25T13:25:29.559Z",
"group": "Burst",
"search": "BBH",
"area_50": 1750.7665439104942,
"area_90": 9069.407130151869,
"duration": 0.016661,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "e82bf9ef73305169c4223907dc22f574",
"classification": {},
"skymap_version": 0,
"central_frequency": 28.309725
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-25T13:32:54Z",
"superevent_id": "S230725an",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-25T13:32:55.843960Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-25T13:32:55.843982Z",
"modified": "2023-07-25T13:32:55.849995Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1547,
"topic": "gcn.circular",
"uuid": "ff6e89b4-cd3d-49ab-a1e2-c22bc5b77054",
"title": "IPN triangulation of GRB 230723A (short)",
"submitter": "Hop gcn.circular",
"authors": "Anna Ridnaia at Ioffe Institute <ridnaia@mail.ioffe.ru>",
"data": {
"date": "23/07/25 15:40:41 GMT",
"from": "Anna Ridnaia at Ioffe Institute <ridnaia@mail.ioffe.ru>",
"title": "GCN CIRCULAR",
"number": "34258",
"subject": "IPN triangulation of GRB 230723A (short)"
},
"message_text": "A.S. Kozyrev, D.V. Golovin, M.L. Litvak, I.G. Mitrofanov, and A.B. Sanin\non behalf of the HEND/Mars Odyssey team,\n\nA. Ridnaia, D. Frederiks, D. Svinkin, A. Lysenko,\nand T. Cline on behalf of the Konus-Wind team,\n\nA. Goldstein, M. S. Briggs, C. Wilson-Hodge,\nand E. Burns on behalf of the Fermi GBM team,\n\nand\n\nW. Boynton, C. Fellows, K. Harshman, H. Enos, R. Starr,\nand A.S. Gardner on on behalf of the GRS-Odyssey GRB team,\nreport:\n\nThe short-duration GRB 230723A\n(Fermi GBM detection: The Fermi GBM team, GCN 34232;\nAGILE/MCAL detection: Panebianco et al., GCN 34237)\nhas been detected by Fermi (GBM), Konus-Wind,\nAGILE (MCAL, AC), and Mars-Odyssey (HEND), so far,\nat about 16723 s UT (04:38:43).\n\nWe have triangulated it to a preliminary, 3 sigma error box\nwhose coordinates are:\n ---------------------------------------------\n RA(2000), deg Dec(2000), deg\n ---------------------------------------------\n Center:\n 22.909 (01h 31m 38s) -67.059 (-67d 03' 31\")\n Corners:\n 24.618 (01h 38m 28s) -66.230 (-66d 13' 48\")\n 24.638 (01h 38m 33s) -66.276 (-66d 16' 34\")\n 21.066 (01h 24m 16s) -67.859 (-67d 51' 31\")\n 21.054 (01h 24m 13s) -67.813 (-67d 48' 46\")\n ---------------------------------------------\nThe error box area is 265 sq. arcmin, and its maximum\ndimension is 2.1 deg (the minimum one is 2 arcmin).\nThe Sun distance was 111 deg.\n\nThe IPN localization is consistent with, but reduces\nthe area of, the Fermi-GBM final localization (GCN 34232).\n\nThis localization may be improved.\n\nA triangulation map and HEALPix FITS file are posted at\nhttp://www.ioffe.ru/LEA/GRBs/GRB230723_T16725/IPN/\n\nThe Konus-Wind time history and spectrum will be given\nin a forthcoming GCN Circular.\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMjk5NjQ2LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.1VB-72xaozr9kzMkMBsKpHd7DU3YBch1iNSI_EIfXaY\n\n",
"published": "2023-07-25T15:40:55.692847Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-25T15:40:55.692874Z",
"modified": "2023-07-25T15:40:55.702577Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1548,
"topic": "gcn.circular",
"uuid": "340fd308-c86a-47aa-b980-061c494e68df",
"title": "GRB 230723B: GAD Observatory, La Spezia, Italy upper limit",
"submitter": "Hop gcn.circular",
"authors": "Claudio Lopresti <cl3lop@gmail.com>",
"data": {
"date": "23/07/25 21:01:33 GMT",
"from": "Claudio Lopresti <cl3lop@gmail.com>",
"title": "GCN CIRCULAR",
"number": "34259",
"subject": "GRB 230723B: GAD Observatory, La Spezia, Italy upper limit"
},
"message_text": "Claudio Lopresti (Gruppo Astronomia Digitale - GAD Observatory, La Spezia, Italy)\nin a large collaboration with:\nM.G. Dainotti (National Astronomical Observatory of Japan), \nY. Niino (Tokyo University, Institute of Astronomy), \nK. Kalinowski (Aarhus University, Department of Physics and Astronomy),\nB. De Simone (Universita' degli Studi Di Salerno)\nUnione Astrofili Italiani (UAI)\nreport: \n \nWe imaged the field of GRB 230723B detected by SWIFT(trigger 1180410)\nwith the telescope LX200 12â of GAD Observatory, La Spezia, Italy\nMember of: \n \nUAI/SSV - Unione Astrofili Italiani/sezione stelle variabili, GRB section.\nGAD - Gruppo Astronomia Digitale.\n \nThe observations started 557 min after the GRB trigger, at the end of twilight, \nwith a Shmidt-Cassegrain telescope D=304 mm with reducer F/D=4.75.\n \nWeather conditions were medium.\n \nWe co-added 42 exposures of 120 sec each.\n \n \nStart T0+ End T0+ R lim\n557 min 641 min 19\n \nWe did not found any optical counterpart in the error box of the XRT candidate.\nPage et al. GCN 34234\n \nMagnitudes were estimated with the Gaia EDR3 cat. and \nare not corrected for galactic dust extinction.\n \nReference:\nhttps://www.parcodellestelle.com/\n \nThe message may be cited.\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMzE4ODk4LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.Pum-njLv3ZMD9d-mwAyM2b6Ciq0P0Nb0Mgy901SOZ_g\n\n",
"published": "2023-07-25T21:01:44.355735Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-25T21:01:44.355768Z",
"modified": "2023-07-25T21:01:44.371254Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1549,
"topic": "gcn.circular",
"uuid": "47e7b7c4-4a8d-43f3-863a-7f78f7569e5f",
"title": "IceCube Alert 230725.90: 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": "23/07/25 21:39:34 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"title": "GCN CIRCULAR",
"number": "34260",
"subject": "IceCube Alert 230725.90: 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-Kislovodsk robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the IceCube Alert 230725.90 (trigger No 21103478,21h 41m 22.66s , +11d 53m 08.5s, R=0.8107) errorbox 6 sec after notice time and 54 sec after trigger time at 2023-07-25 21:31:45 UT, with upper limit up to 15.7 mag. The observations began at zenith distance = 35 deg. The sun altitude is -27.3 deg.\n\nMASTER-SAAO robotic telescope located in South Africa (South African Astronomical Observatory) was pointed to the IceCube Alert 230725.90 errorbox 33 sec after notice time and 82 sec after trigger time at 2023-07-25 21:32:13 UT, with upper limit up to 17.3 mag. The observations began at zenith distance = 57 deg. The sun altitude is -69.5 deg.\n\nThe galactic latitude b = -30 deg., longitude l = 67 deg.\n\n\nReal time updated cover map and OT discovered available here:\nhttps://master.sai.msu.ru/site/master2/observ.php?id\"45005\n\nWe obtain a following upper limits.\n\nTmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n 60 | 2023-07-25 21:31:45 | MASTER-Kislovodsk | (21h 40m 44.87s , +11d 43m 10.3s) | P| | 10 | 14.6 |\n 92 | 2023-07-25 21:32:13 | MASTER-SAAO | (21h 41m 27.72s , +11d 41m 44.4s) | P/ | 20 | 16.1 |\n 92 | 2023-07-25 21:32:13 | MASTER-SAAO | (21h 40m 26.73s , +11d 41m 02.0s) | C | 20 | 17.1 |\n 96 | 2023-07-25 21:32:16 | MASTER-Kislovodsk | (21h 40m 49.83s , +11d 42m 07.4s) | P| | 20 | 15.7 |\n 143 | 2023-07-25 21:33:04 | MASTER-SAAO | (21h 41m 26.96s , +11d 40m 09.5s) | P/ | 20 | 16.1 |\n 143 | 2023-07-25 21:33:04 | MASTER-SAAO | (21h 40m 25.93s , +11d 39m 25.6s) | C | 20 | 17.1 |\n 146 | 2023-07-25 21:33:07 | MASTER-Kislovodsk | (21h 40m 44.77s , +11d 41m 04.2s) | P| | 20 | 15.4 |\n 188 | 2023-07-25 21:33:43 | MASTER-SAAO | (21h 41m 29.39s , +11d 41m 43.6s) | P/ | 30 | 15.7 |\n 188 | 2023-07-25 21:33:43 | MASTER-SAAO | (21h 40m 28.32s , +11d 40m 59.4s) | C | 30 | 16.6 |\n 193 | 2023-07-25 21:33:48 | MASTER-Kislovodsk | (21h 40m 50.90s , +11d 41m 26.6s) | P| | 30 | 15.0 |\n 242 | 2023-07-25 21:34:33 | MASTER-SAAO | (21h 41m 22.72s , +11d 40m 52.9s) | P/ | 40 | 16.3 |\n 243 | 2023-07-25 21:34:33 | MASTER-SAAO | (21h 40m 21.57s , +11d 40m 07.9s) | C | 40 | 17.3 |\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.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMzIxMTgwLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.Ir7omdOg63Sy8JHmW_ZJ_spP1TGFjoGDFljt68Lx5Sk\n\n",
"published": "2023-07-25T21:39:45.468414Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-25T21:39:45.468435Z",
"modified": "2023-07-25T21:39:45.477347Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1550,
"topic": "gcn.circular",
"uuid": "3e1fab17-04c5-4b9c-8df3-fccabdf86e54",
"title": "IceCube-230725A - IceCube observation of a high-energy neutrino candidate track-like event",
"submitter": "Hop gcn.circular",
"authors": "Marcos Santander at U of Alabama <jmsantander@ua.edu>",
"data": {
"date": "23/07/25 23:24:15 GMT",
"from": "Marcos Santander at U of Alabama <jmsantander@ua.edu>",
"title": "GCN CIRCULAR",
"number": "34261",
"subject": "IceCube-230725A - IceCube observation of a high-energy neutrino candidate track-like event"
},
"message_text": "\nThe IceCube Collaboration (http://icecube.wisc.edu/) reports:\n\nOn 23-07-25 at 21:30:51.06 UT IceCube detected a track-like event with a high probability of being of astrophysical origin.\n\nThe event was selected by the ICECUBE_Astrotrack_BRONZE alert stream. The average astrophysical neutrino purity for Bronze alerts is 30%. This alert has an estimated false alarm rate of 1.677 events per year due to atmospheric backgrounds.\nThe IceCube detector was in a normal operating state at the time of detection. After the initial automated alert (https://gcn.gsfc.nasa.gov/notices_amon_g_b/138193_21103478.amon) more sophisticated reconstruction algorithms have have been applied offline, with the direction refined to:\n\nDate: 23-07-25\nTime: 21:30:51.06 UT\nRA: 327.04 (+2.27 / -2.03 90% PSF containment) J2000\nDec: +12.33 (+1.80 / -1.36 deg 90% PSF containment) J2000\n\nWe encourage follow-up by ground and space-based instruments to help identify a possible astrophysical source for the candidate neutrino. One Fermi 4FGL-DR3 or 3FHL catalog source is located in the 90% uncertainty region. The source is 4FGL J2150.8+1118, located at RA 327.70, Dec 11.31, 1.21 deg away from the best-fit alert event position.\n\nThe IceCube Neutrino Observatory is a cubic-kilometer neutrino detector operating at the geographic South Pole, Antarctica. The IceCube realtime alert point of contact can be reached at roc@icecube.wisc.edu .\n\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMzI3NDYxLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.JCb3QUSbVkHQbVWuZU0nIE7jitPxooDYnqZLp_WTuO4\n\n",
"published": "2023-07-25T23:24:26.276951Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-25T23:24:26.276967Z",
"modified": "2023-07-25T23:24:26.284992Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1551,
"topic": "gcn.circular",
"uuid": "a3b170d8-29da-4cf9-8fcf-3a6cf151f4b1",
"title": "Integral GRB230725.99: 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": "23/07/25 23:57:26 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"title": "GCN CIRCULAR",
"number": "34262",
"subject": "Integral GRB230725.99: 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-Kislovodsk robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the Integral GRB230725.99 (trigger No 10337,02h 43m 32.74s , +61d 39m 03.2s, R=0.0547) errorbox 6 sec after notice time and 30 sec after trigger time at 2023-07-25 23:40:33 UT, with upper limit up to 16.8 mag. The observations began at zenith distance = 39 deg. The sun altitude is -19.2 deg.\n\nMASTER-Tavrida robotic telescope located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the Integral GRB230725.99 errorbox 18 sec after notice time and 42 sec after trigger time at 2023-07-25 23:40:45 UT, with upper limit up to 18.7 mag. The observations began at zenith distance = 42 deg. The sun altitude is -21.5 deg.\n\nThe galactic latitude b = 2 deg., longitude l = 136 deg.\n\n\nReal time updated cover map and OT discovered available here:\nhttps://master.sai.msu.ru/site/master2/observ.php?id\"45024\n\nWe obtain a following upper limits.\n\nTmid-T0 | Site |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____|_______|______|________\n\n 35 | MASTER-Kislovodsk | P- | 10 | 14.5 |\n 35 | MASTER-Kislovodsk | P| | 10 | 15.5 |\n 48 | MASTER-Tavrida | C | 10 | 17.1 |\n 53 | MASTER-Kislovodsk | P- | 10 | 14.5 |\n 53 | MASTER-Kislovodsk | P| | 10 | 15.5 |\n 67 | MASTER-Tavrida | C | 10 | 17.4 |\n 89 | MASTER-Tavrida | C | 20 | 17.8 |\n 116 | MASTER-Tavrida | C | 20 | 17.8 |\n 130 | MASTER-Kislovodsk | P- | 20 | 15.4 |\n 130 | MASTER-Kislovodsk | P| | 20 | 16.2 |\n 149 | MASTER-Tavrida | C | 30 | 18.0 |\n 163 | MASTER-Kislovodsk | P| | 30 | 16.3 |\n 187 | MASTER-Tavrida | C | 30 | 18.0 |\n 229 | MASTER-Tavrida | C | 40 | 18.1 |\n 281 | MASTER-Tavrida | C | 50 | 18.3 |\n 311 | MASTER-Kislovodsk | P| | 60 | 16.8 |\n 342 | MASTER-Tavrida | C | 60 | 18.3 |\n 420 | MASTER-Tavrida | C | 80 | 18.5 |\n 514 | MASTER-Tavrida | C | 90 | 18.7 |\n 621 | MASTER-Tavrida | C | 110 | 18.7 |\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.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMzI5NDUyLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.x6PnL-lk6LqH9EWRCJYX8Gi6gH69pE8QPmFawuFzd1w\n\n",
"published": "2023-07-25T23:57:37.646355Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-25T23:57:37.646382Z",
"modified": "2023-07-25T23:57:37.666046Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1552,
"topic": "gcn.circular",
"uuid": "5727c3f6-e4e3-43cc-bf23-db05e7ee4eea",
"title": "IBAS trigger number 10337: not a real GRB",
"submitter": "Hop gcn.circular",
"authors": "Sandro Mereghetti at IASF-Milano/INAF <sandro.mereghetti@inaf.it>",
"data": {
"date": "23/07/26 00:24:17 GMT",
"from": "Sandro Mereghetti at IASF-Milano/INAF <sandro.mereghetti@inaf.it>",
"title": "GCN CIRCULAR",
"number": "34263",
"subject": "IBAS trigger number 10337: not a real GRB"
},
"message_text": "S.Mereghetti (INAF, IASF-Milano) on behalf of the IBAS team reports:\n\nThe IBAS trigger number 10337 of 2023-07-25 at 23:40:03 UTC is not a real\nGRB, but is related to the active state of Swift J0243.6+6124.\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMzMxMDYzLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.ewjImdib0Sn6J1rY4qnvt7NcIwk1wI0qCLL0J5In1HA\n\n",
"published": "2023-07-26T00:24:28.958835Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-26T00:24:28.958853Z",
"modified": "2023-07-26T00:24:28.966944Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1553,
"topic": "igwn.gwalert",
"uuid": "25d71d25-8b50-4df5-91dc-e25de9f7ae4e",
"title": "S230726a - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230726a/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230726a/view/"
},
"event": {
"far": 3.832054318795527e-14,
"time": "2023-07-26T00:29:40.060Z",
"group": "CBC",
"search": "AllSky",
"area_50": 8060.576168608048,
"area_90": 24218.657426213435,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"L1"
],
"significant": true,
"skymap_hash": "0adca293d2175c2d095c85f21127595d",
"classification": {
"BBH": 0.9999998589269592,
"BNS": 3.8818043107879957e-25,
"NSBH": 3.038812522528842e-23,
"Terrestrial": 1.4107304080468452e-07
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-07-26T00:30:11Z",
"superevent_id": "S230726a",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-26T00:30:11.986084Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-26T00:30:11.986103Z",
"modified": "2023-07-26T00:30:11.992391Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1554,
"topic": "igwn.gwalert",
"uuid": "ff988211-7140-4f6d-9e01-c7280f0a10ab",
"title": "S230726a - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230726a/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230726a/view/"
},
"event": {
"far": 3.832054318795527e-14,
"time": "2023-07-26T00:29:40.060Z",
"group": "CBC",
"search": "AllSky",
"area_50": 8060.576168608048,
"area_90": 24218.657426213435,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"L1"
],
"significant": true,
"skymap_hash": "0adca293d2175c2d095c85f21127595d",
"classification": {
"BBH": 0.9999998589269592,
"BNS": 3.8818043107879957e-25,
"NSBH": 3.038812522528842e-23,
"Terrestrial": 1.4107304080468452e-07
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-26T00:34:47Z",
"superevent_id": "S230726a",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-26T00:34:48.523908Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-26T00:34:48.523927Z",
"modified": "2023-07-26T00:34:48.530629Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1555,
"topic": "igwn.gwalert",
"uuid": "b56a35c2-41a4-454e-a9a0-ea59e4c24599",
"title": "S230726b - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230726b/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230726b/view/"
},
"event": {
"far": 2.875145128200529e-06,
"time": "2023-07-26T01:15:07.790Z",
"group": "CBC",
"search": "AllSky",
"area_50": 390.48136843449544,
"area_90": 3375.6390410393133,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.32685759270869064,
"HasMassGap": 0.25437784261392393,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "a328baea17425a3c0c8f823c3b48c46d",
"classification": {
"BBH": 0.2915235893883321,
"BNS": 0.0,
"NSBH": 0.013677308150390075,
"Terrestrial": 0.6947991024612779
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-07-26T01:15:31Z",
"superevent_id": "S230726b",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-26T01:15:32.389962Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-26T01:15:32.389981Z",
"modified": "2023-07-26T01:15:32.398114Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1556,
"topic": "igwn.gwalert",
"uuid": "fda73e65-a9f5-4d8c-8668-87d702443ec9",
"title": "S230726b - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230726b/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230726b/view/"
},
"event": {
"far": 2.875145128200529e-06,
"time": "2023-07-26T01:15:07.790Z",
"group": "CBC",
"search": "AllSky",
"area_50": 390.48136843449544,
"area_90": 3375.6390410393133,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.32685759270869064,
"HasMassGap": 0.25437784261392393,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "a328baea17425a3c0c8f823c3b48c46d",
"classification": {
"BBH": 0.2915235893883321,
"BNS": 0.0,
"NSBH": 0.013677308150390075,
"Terrestrial": 0.6947991024612779
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-26T01:20:05Z",
"superevent_id": "S230726b",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-26T01:20:06.939631Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-26T01:20:06.939660Z",
"modified": "2023-07-26T01:20:06.945967Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1557,
"topic": "igwn.gwalert",
"uuid": "0c694510-f12b-4483-8259-0e2f26cc0166",
"title": "S230726a - INITIAL",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230726a/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230726a/view/"
},
"event": {
"far": 3.832054318795527e-14,
"time": "2023-07-26T00:29:40.060Z",
"group": "CBC",
"search": "AllSky",
"area_50": 8060.576168608048,
"area_90": 24218.657426213435,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"L1"
],
"significant": true,
"skymap_hash": "0adca293d2175c2d095c85f21127595d",
"classification": {
"BBH": 0.9999998589269592,
"BNS": 3.8818043107879957e-25,
"NSBH": 3.038812522528842e-23,
"Terrestrial": 1.4107304080468452e-07
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "INITIAL",
"sequence_num": 3,
"time_created": "2023-07-26T01:22:42Z",
"superevent_id": "S230726a",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-26T01:22:44.174488Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-26T01:22:44.174508Z",
"modified": "2023-07-26T01:22:44.180911Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1558,
"topic": "gcn.circular",
"uuid": "e5fa987d-5a48-4674-9606-4a0aaae788c4",
"title": "LIGO/Virgo/KAGRA S230726a: Identification of a GW compact binary merger candidate",
"submitter": "Hop gcn.circular",
"authors": "Andy C <andy.c.80297@gmail.com>",
"data": {
"date": "23/07/26 01:38:51 GMT",
"from": "Andy C <andy.c.80297@gmail.com>",
"title": "GCN CIRCULAR",
"number": "34264",
"subject": "LIGO/Virgo/KAGRA S230726a: 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 S230726a during\nreal-time processing of data from LIGO Livingston Observatory (L1) at\n2023-07-26 00:29:40.060 UTC (GPS time: 1374366598.060). The candidate\nwas found by the GstLAL [1] analysis pipeline.\n\nS230726a is an event of interest because its false alarm rate, as\nestimated by the online analysis, is 3.8e-14 Hz, or about one in 1e6\nyears. The event's properties can be found at this URL:\n\nhttps://gracedb.ligo.org/superevents/S230726a\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%. [2] Using the masses and spins inferred from the\nsignal, the probability of matter outside the final compact object\n(HasRemnant) is <1%. [2] Both HasNS and HasRemnant consider the\nsupport of several neutron star equations of state. The probability\nthat either of the binary components lies between 3 and 5 solar masses\n(HasMassgap) is <1%.\n\nTwo sky maps are available at this time and can be retrieved from the\nGraceDB event page:\n * bayestar.multiorder.fits,0, an initial localization generated by\nBAYESTAR [3], distributed via GCN notice about 30 seconds after the\ncandidate event time.\n * bayestar.multiorder.fits,1, an initial localization generated by\nBAYESTAR [3], 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\n24219 deg2. Marginalized over the whole sky, the a posteriori\nluminosity distance estimate is 2077 +/- 699 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] Chatterjee et al. ApJ 896, 54 (2020)\n [3] Singer & Price PRD 93, 024013 (2016)\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMzM1NTM2LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.A93yLots8-DUhsfWaU4He85YT3_HIx9k7TkTuKe4J6k\n\n",
"published": "2023-07-26T01:39:02.153461Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-26T01:39:02.153478Z",
"modified": "2023-07-26T01:39:02.161513Z",
"nonlocalizedevents": [
{
"event_id": "S230726a"
}
],
"targets": []
},
{
"id": 1559,
"topic": "gcn.circular",
"uuid": "d4875705-bfe3-44ac-813c-0163950e6694",
"title": "IceCube-230724A - IceCube observation of a high-energy neutrino candidate track-like event",
"submitter": "Hop gcn.circular",
"authors": "Marcos Santander at U of Alabama <jmsantander@ua.edu>",
"data": {
"date": "23/07/26 01:43:56 GMT",
"from": "Marcos Santander at U of Alabama <jmsantander@ua.edu>",
"title": "GCN CIRCULAR",
"number": "34265",
"subject": "IceCube-230724A - IceCube observation of a high-energy neutrino candidate track-like event"
},
"message_text": "The IceCube Collaboration (http://icecube.wisc.edu/) reports:\n\nOn 2023-07-24 at 01:49:13.38 UT IceCube detected a track-like event with a high probability of being of astrophysical origin. The event was selected by the ICECUBE_Astrotrack_GOLD alert stream. The average astrophysical neutrino purity for Gold alerts is 50%. This alert has an estimated false alarm rate of 1.174 events per year due to atmospheric backgrounds. The IceCube detector was in a normal operating state at the time of detection.\n\nAfter the initial automated alert (https://gcn.gsfc.nasa.gov/notices_amon_g_b/138181_66037171.amon) more sophisticated reconstruction algorithms have been applied offline, with the direction refined to:\n\nDate: 2023-07-24\nTime: 01:49:13.38 UT\nRA: 32.52 (+0.58, -0.40 deg 90% PSF containment) J2000\nDec: -1.87 (+0.23, -0.33 deg 90% PSF containment) J2000\n\nAn error in the automatic processing pipeline that performs the offline reconstruction resulted in a delay in the circulation of the updated position. Therefore, an alternative reconstruction algorithm has been applied to this event. We encourage follow-up by ground and space-based instruments to help identify a possible astrophysical source for the candidate neutrino.\n\n There are no Fermi 4FGL-DR3 or 3FHL catalog sources in the 90% uncertainty region. The nearest gamma-ray source in either catalog is 4FGL J0212.2-0219 at RA: 33.07 deg, Dec: -2.32 deg (0.71 deg away from the best-fit alert position).\n\nThe IceCube Neutrino Observatory is a cubic-kilometer neutrino detector operating at the geographic South Pole, Antarctica. The IceCube realtime alert point of contact can be reached at roc@icecube.wisc.edu\n\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMzM1ODM5LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.2RRJpuxb_zki2G2yA53vE593bdQgOQgAXhTM-Z9KM6w\n\n",
"published": "2023-07-26T01:44:04.094312Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-26T01:44:04.094337Z",
"modified": "2023-07-26T01:44:04.100948Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1560,
"topic": "igwn.gwalert",
"uuid": "e3265689-5060-4cba-b309-8c08db655281",
"title": "S230726f - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230726f/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230726f/view/"
},
"event": {
"far": 2.038079406376086e-05,
"time": "2023-07-26T01:53:41.483Z",
"group": "CBC",
"search": "AllSky",
"area_50": 811.5969549191985,
"area_90": 3069.296860537238,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.007345713506882921,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "3cdee355d3916c82b469629966a83b66",
"classification": {
"BBH": 0.06980420322145638,
"BNS": 5.290337438441645e-15,
"NSBH": 3.7636895836411496e-13,
"Terrestrial": 0.930195796778162
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-07-26T01:54:03Z",
"superevent_id": "S230726f",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-26T01:54:05.618515Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-26T01:54:05.618543Z",
"modified": "2023-07-26T01:54:05.625687Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1561,
"topic": "igwn.gwalert",
"uuid": "5cbfffeb-592e-40db-b1e6-44817c5fd0f0",
"title": "S230726f - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230726f/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230726f/view/"
},
"event": {
"far": 2.038079406376086e-05,
"time": "2023-07-26T01:53:41.483Z",
"group": "CBC",
"search": "AllSky",
"area_50": 811.5969549191985,
"area_90": 3069.296860537238,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.007345713506882921,
"HasRemnant": 0.0
},
"instruments": [
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"L1"
],
"significant": false,
"skymap_hash": "3cdee355d3916c82b469629966a83b66",
"classification": {
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"BNS": 5.290337438441645e-15,
"NSBH": 3.7636895836411496e-13,
"Terrestrial": 0.930195796778162
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-26T01:58:40Z",
"superevent_id": "S230726f",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-26T01:58:41.352921Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-26T01:58:41.352950Z",
"modified": "2023-07-26T01:58:41.359426Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1562,
"topic": "igwn.gwalert",
"uuid": "b9b8bf8b-c78e-4d5c-ad0a-dc72a8a58dba",
"title": "S230726k - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230726k/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230726k/view/"
},
"event": {
"far": 1.789593443390913e-05,
"time": "2023-07-26T02:28:26.964Z",
"group": "CBC",
"search": "AllSky",
"area_50": 2402.05841259436,
"area_90": 8006.861375314535,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 7.094344529165021e-05,
"HasMassGap": 0.4542341525588239,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "d60e3824d7a065adfa44dc1e5cf8552e",
"classification": {
"BBH": 0.1847159480053646,
"BNS": 0.0,
"NSBH": 0.0014382043980931708,
"Terrestrial": 0.8138458475965422
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-07-26T02:28:50Z",
"superevent_id": "S230726k",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-26T02:28:51.263877Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-26T02:28:51.263899Z",
"modified": "2023-07-26T02:28:51.271078Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1563,
"topic": "igwn.gwalert",
"uuid": "67fe1dd5-68e8-4e97-b9da-8bbad838114a",
"title": "S230726k - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230726k/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230726k/view/"
},
"event": {
"far": 1.789593443390913e-05,
"time": "2023-07-26T02:28:26.964Z",
"group": "CBC",
"search": "AllSky",
"area_50": 2402.05841259436,
"area_90": 8006.861375314535,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 7.094344529165021e-05,
"HasMassGap": 0.4542341525588239,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "d60e3824d7a065adfa44dc1e5cf8552e",
"classification": {
"BBH": 0.1847159480053646,
"BNS": 0.0,
"NSBH": 0.0014382043980931708,
"Terrestrial": 0.8138458475965422
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-26T02:33:25Z",
"superevent_id": "S230726k",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-26T02:33:25.862221Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-26T02:33:25.862241Z",
"modified": "2023-07-26T02:33:25.868429Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1564,
"topic": "igwn.gwalert",
"uuid": "ceadf4c1-6fdb-4abd-bf4c-9db38871f452",
"title": "S230726o - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230726o/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230726o/view/"
},
"event": {
"far": 1.53035e-05,
"time": "2023-07-26T03:52:30.695Z",
"group": "Burst",
"search": "BBH",
"area_50": 1186.76121432859,
"area_90": 3724.7851974471587,
"duration": 0.033226,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "631b1f808e793847d04eb1bce1c84baa",
"classification": {},
"skymap_version": 0,
"central_frequency": 35.914936
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-07-26T03:53:44Z",
"superevent_id": "S230726o",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-26T03:53:45.304848Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-26T03:53:45.304866Z",
"modified": "2023-07-26T03:53:45.312303Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1565,
"topic": "igwn.gwalert",
"uuid": "c3e07852-1552-406e-91ee-8b080739121b",
"title": "S230726o - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230726o/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230726o/view/"
},
"event": {
"far": 1.53035e-05,
"time": "2023-07-26T03:52:30.695Z",
"group": "Burst",
"search": "BBH",
"area_50": 1186.76121432859,
"area_90": 3724.7851974471587,
"duration": 0.033226,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "631b1f808e793847d04eb1bce1c84baa",
"classification": {},
"skymap_version": 0,
"central_frequency": 35.914936
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-26T03:58:18Z",
"superevent_id": "S230726o",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-26T03:58:18.900605Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-26T03:58:18.900623Z",
"modified": "2023-07-26T03:58:18.906844Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1566,
"topic": "igwn.gwalert",
"uuid": "e03aa797-87e9-4ad6-b221-222520e4ce66",
"title": "S230726q - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230726q/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230726q/view/"
},
"event": {
"far": 1.919405639944385e-05,
"time": "2023-07-26T04:06:13.812Z",
"group": "CBC",
"search": "AllSky",
"area_50": 530.0139369508519,
"area_90": 1867.4283605948465,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.014712917913729274,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "43ce0fabbde489da34799534718f1090",
"classification": {
"BBH": 0.10779236465595828,
"BNS": 2.290801522602201e-15,
"NSBH": 1.5517200823795395e-13,
"Terrestrial": 0.8922076353438843
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-07-26T04:06:39Z",
"superevent_id": "S230726q",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-26T04:06:40.247144Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-26T04:06:40.247173Z",
"modified": "2023-07-26T04:06:40.253862Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1567,
"topic": "igwn.gwalert",
"uuid": "8a6d0eac-f3ea-4880-bddf-7f1989c3841d",
"title": "S230726q - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230726q/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230726q/view/"
},
"event": {
"far": 1.919405639944385e-05,
"time": "2023-07-26T04:06:13.812Z",
"group": "CBC",
"search": "AllSky",
"area_50": 530.0139369508519,
"area_90": 1867.4283605948465,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.014712917913729274,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "43ce0fabbde489da34799534718f1090",
"classification": {
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"BNS": 2.290801522602201e-15,
"NSBH": 1.5517200823795395e-13,
"Terrestrial": 0.8922076353438843
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-26T04:11:14Z",
"superevent_id": "S230726q",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-26T04:11:16.011804Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-26T04:11:16.011822Z",
"modified": "2023-07-26T04:11:16.018142Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1568,
"topic": "gcn.circular",
"uuid": "43a94e36-4865-4a10-8ef8-1091aeab9238",
"title": "LIGO/Virgo/KAGRA S230726b: one counterpart neutrino candidate from IceCube neutrino searches",
"submitter": "Hop gcn.circular",
"authors": "acz2122@columbia.edu",
"data": {
"date": "23/07/26 04:36:27 GMT",
"from": "acz2122@columbia.edu",
"title": "GCN CIRCULAR",
"number": "34266",
"subject": "LIGO/Virgo/KAGRA S230726b: one counterpart neutrino candidate from IceCube neutrino searches"
},
"message_text": "The IceCube Collaboration (http://icecube.wisc.edu/) reports:\n\nA search for track-like muon neutrino events detected by IceCube consistent with the sky\nlocalization of the low-significance gravitational wave candidate S230726b in a time range of 1000 seconds\ncentered on the alert event time (2023-07-26 01:06:47 UTC to 2023-07-26 01:23:27 UTC)\nhas been performed [1,2]. During this time period IceCube was collecting good quality data.\nOne hypothesis test was conducted for this low-significance gravitational wave event. The\nsearch uses a Bayesian approach to quantify the joint GW + neutrino event significance, which\nassumes a binary merger scenario and accounts for known astrophysical priors, such as GW source\ndistance, in the significance estimate [3].\n\nOne track-like event is found in spatial and temporal coincidence with the gravitational-wave\ncandidate S230726b calculated from the map circulated by LVK as S230726b-2-Preliminary. This\nrepresents an overall pre-trial p-value of 0.0089 for the Bayesian search.\n\nThe reported p-value here does not account for any trials correction (multiple hypotheses testing). The false alarm rate of these coincidences can be obtained by multiplying the p-values with their corresponding GW trigger rates. Further details are available at https://gcn.nasa.gov/missions/icecube.\n\nProperties of the coincident event(s) are shown below.\n\ndt(s)\tRA(deg)\t\tDec(deg)\tAngular uncertainty(deg) p-value(generic transient) p-value(Bayesian)\n-----------------------------------------------------------------------------------------------------\n80.15 131.82 \t1.68 \t1.889 \t\tnot applicable \t0.0098\n...\n\nwhere:\ndt = Time of track event minus time of GW trigger (sec)\nAngular uncertainty = Angular uncertainty of track event: the radius of a circle\n \trepresenting 90% CL containment by area.\np-value = the p-value for this specific track event from each search.\n\nThe IceCube Neutrino Observatory is a cubic-kilometer neutrino detector operating at the\ngeographic South Pole, Antarctica. The IceCube realtime alert point of contact can be\nreached at roc@icecube.wisc.edu\n\n\n[1] M. G. Aartsen et al 2020 ApJL 898 L10\n[2] Abbasi et al. Astrophys.J. 944 (2023) 1, 80\n[3] I. Bartos et al. 2019 Phys. Rev. D 100, 083017\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMzQ2MTkzLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.f-jgVhdOasHfyeQtvwr9qyIa-BJT3ic4LmQG3Mb7ofs\n\n",
"published": "2023-07-26T04:36:40.354325Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-26T04:36:40.354350Z",
"modified": "2023-07-26T04:36:40.367153Z",
"nonlocalizedevents": [
{
"event_id": "S230726b"
}
],
"targets": []
},
{
"id": 1569,
"topic": "gcn.circular",
"uuid": "9018311f-bc45-4234-bc2c-3c539d008d15",
"title": "GRB 230723B: ATCA rapid radio follow-up",
"submitter": "Hop gcn.circular",
"authors": "Gemma Anderson at Curtin U <gemma.anderson@curtin.edu.au>",
"data": {
"date": "23/07/26 05:29:00 GMT",
"from": "Gemma Anderson at Curtin U <gemma.anderson@curtin.edu.au>",
"title": "GCN CIRCULAR",
"number": "34267",
"subject": "GRB 230723B: ATCA rapid radio follow-up"
},
"message_text": "G. E. Anderson (Curtin), A. Gulati (USyd), J. K. Leung (USyd), A. J. van der Horst (GWU), L. Rhodes (Oxford), S. Chastain (UNM) on behalf of the PanRadio GRB collaboration\n\nThe Australia Telescope Compact Array (ATCA) performed rapid-response follow-up observations of the long GRB 230723B (Page et al. GCN 34234) at 5.5, 9, 16.7, and 21.2 GHz as part of the Large ATCA âPanRadio GRBâ follow-up programme C3542 (PI. Anderson). ATCA was on target observing at 2023-07-23 11:51 UT, just 9 minutes post-burst and observed for 4 hrs. There is no radio source coincident with the enhanced XRT position (Page et al. GCN 34238) with 3 sigma upper limits of 150, 90, 90 and 150 microJy/beam at 5.5, 9.0, 16.7 and 21.2 GHz, respectively. Further observations are planned.\n\nWe thank the CSIRO Space and Astronomy staff for supporting these observations and maintaining the ATCA rapid-response observing mode.\n\nWe acknowledge the Gomeroi people as the traditional owners of the Observatory site. The Australia Telescope Compact Array is part of the Australia Telescope National Facility (https://ror.org/05qajvd42) which is funded by the Australian Government for operation as a National Facility managed by CSIRO.\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMzQ5MzQ1LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.NB7nteAW2fKf1pFOaeDN8ZeudqtAs6ExsH0firou_YA\n\n",
"published": "2023-07-26T05:29:11.548029Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-26T05:29:11.548055Z",
"modified": "2023-07-26T05:29:11.558110Z",
"nonlocalizedevents": [],
"targets": []
},
{
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"uuid": "68e4014b-923a-443e-8a4b-ba5009ab194b",
"title": "S230726ag - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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},
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"published": "2023-07-26T07:09:20.821156Z",
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"retracted": false,
"created": "2023-07-26T07:09:20.821189Z",
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},
{
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"topic": "igwn.gwalert",
"uuid": "d08ad3dd-3d4c-4f18-91c5-d8b19acfdec6",
"title": "S230726ag - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-26T07:13:54Z",
"superevent_id": "S230726ag",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-26T07:13:55.726692Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-26T07:13:55.726722Z",
"modified": "2023-07-26T07:13:55.733248Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1572,
"topic": "igwn.gwalert",
"uuid": "e9396808-6d96-48b0-b7d0-ac10362e5a18",
"title": "S230726al - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
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"time": "2023-07-26T08:16:44.074Z",
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"duration": null,
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"sequence_num": 1,
"time_created": "2023-07-26T08:17:08Z",
"superevent_id": "S230726al",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-26T08:17:10.102827Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-26T08:17:10.102849Z",
"modified": "2023-07-26T08:17:10.109180Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1573,
"topic": "igwn.gwalert",
"uuid": "6d068a20-930d-4755-915d-a375503f84a3",
"title": "S230726al - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230726al/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230726al/view/"
},
"event": {
"far": 1.126682673202595e-05,
"time": "2023-07-26T08:16:44.074Z",
"group": "CBC",
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"area_50": 2407.0941744656266,
"area_90": 10084.952440857382,
"duration": null,
"pipeline": "spiir",
"properties": {
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},
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"significant": false,
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"Terrestrial": 0.7635627165383517
},
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},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-26T08:21:43Z",
"superevent_id": "S230726al",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-26T08:21:44.139959Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-26T08:21:44.139990Z",
"modified": "2023-07-26T08:21:44.146156Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1574,
"topic": "igwn.gwalert",
"uuid": "5199aaeb-e4b4-4a24-9128-f1d020243af5",
"title": "S230726ar - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230726ar/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230726ar/view/"
},
"event": {
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"time": "2023-07-26T08:40:50.446Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1305.3114417146674,
"area_90": 9463.875143401117,
"duration": null,
"pipeline": "gstlal",
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"BNS": 7.773518901865963e-18,
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"Terrestrial": 0.9639812083181131
},
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},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-07-26T08:41:15Z",
"superevent_id": "S230726ar",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-26T08:41:17.051108Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-26T08:41:17.051142Z",
"modified": "2023-07-26T08:41:17.057585Z",
"nonlocalizedevents": [],
"targets": []
},
{
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"topic": "igwn.gwalert",
"uuid": "f7e58255-8434-4a2a-b5b0-719892a79776",
"title": "S230726ar - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230726ar/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230726ar/view/"
},
"event": {
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"time": "2023-07-26T08:40:50.446Z",
"group": "CBC",
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"area_90": 9463.875143401117,
"duration": null,
"pipeline": "gstlal",
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},
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"sequence_num": 2,
"time_created": "2023-07-26T08:45:50Z",
"superevent_id": "S230726ar",
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},
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"published": "2023-07-26T08:45:51.388008Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-26T08:45:51.388030Z",
"modified": "2023-07-26T08:45:51.394162Z",
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},
{
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"topic": "igwn.gwalert",
"uuid": "e9f05582-df56-45ab-912c-ffeaaaaa2395",
"title": "S230726at - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230726at/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230726at/view/"
},
"event": {
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"time": "2023-07-26T09:31:29.832Z",
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},
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"published": "2023-07-26T09:32:42.429169Z",
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"created": "2023-07-26T09:32:42.429208Z",
"modified": "2023-07-26T09:32:42.440977Z",
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},
{
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"topic": "igwn.gwalert",
"uuid": "c375a30f-c340-418f-a2d1-c6e42bff2555",
"title": "S230726at - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
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"time_created": "2023-07-26T09:37:14Z",
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},
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"published": "2023-07-26T09:37:15.302066Z",
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"retracted": false,
"created": "2023-07-26T09:37:15.302087Z",
"modified": "2023-07-26T09:37:15.308138Z",
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},
{
"id": 1578,
"topic": "gcn.circular",
"uuid": "17546a7a-80fd-44a9-80bb-8d8008147764",
"title": "GRB 230723B: MITSuME Akeno optical afterglow candidate detection",
"submitter": "Hop gcn.circular",
"authors": "Mahito Sasada at Tokyo Institute of Technology <sasada@hp.phys.titech.ac.jp>",
"data": {
"date": "23/07/26 13:34:48 GMT",
"from": "Mahito Sasada at Tokyo Institute of Technology <sasada@hp.phys.titech.ac.jp>",
"title": "GCN CIRCULAR",
"number": "34268",
"subject": "GRB 230723B: MITSuME Akeno optical afterglow candidate detection"
},
"message_text": "M. Sasada, I. Takahashi, M. Niwano, S. Sato, S. Hayatsu, N. Higuchi, H. Takei, H. Seki, Y. Yatsu (Tokyo Tech), K. L. Murata (Kyoto U) and N. Kawai (Riken) report on behalf of the MITSuME collaboration:\n\nWe observed the field of GRB 230723B (Page et al. GCN Circular #34234, Campana et al. #34236, Page et al. #34238, Lipunov et al. #34239, Siegle et al. #34240, Agui Fernandez et al. #34241, Adami et al. #34247, Osborne et al. #34248, Mangan et al. #34249, Quadri et al. #34250, Agui Fernandez et al. #34251, Leonini et al. #34252, Ruocco et al. #34253, Pavoni et al. #34254, Lopresti et al. #34259, Anderson et al. #34267) with the optical three color (g', Rc, and Ic) CCD cameras attached to the MITSuME 50 cm telescope Akeno.\n\nThe observation with a series of 10 sec exposures started at 2023-07-23 11:43:20 UT (48 seconds after the Swift/BAT detection). We stacked the images with good conditions. In the stacked image at 454 seconds after the burst, we detected an object of Ic=17.1+/-0.2 at the coordinate reported by Agui Fernandez et al. #34251. We also report the gâ-, Rc- and Ic-band 3-sigma upper limits of the stacked images.\n\nT0+[sec] |MID-UT | T-EXP[sec] | 3-sigma limits\n------------------------------------------------------------------------------------------------\n454 | 2023-07-23 11:50:06 | 220 | gâ>18.0, Rc>17.8, Ic>17.6\n1419 | 2023-07-23 12:06:11 | 1020 | gâ>18.6, Rc>18.5, Ic>18.2\n 3763 | 2023-07-23 12:45:15 | 1890 | g'>19.0, Rc>18.5, Ic>18.0\n------------------------------------------------------------------------------------------------\nT0+ : Elapsed time after the burst\nT-EXP: Total Exposure time\n\nWe used the PS1 catalog for flux calibration. The catalog magnitudes in PS1 r and i bands were converted to our Rc- and Ic-band magnitudes following Tonry et al. (2012), Table 6. The magnitudes are expressed in the AB system. The images were processed in real-time through the MITSuME GPU reduction pipeline (Niwano et al. 2021, PASJ, Vol.73, Issue 1, Pages 4-24; https://github.com/MNiwano/Eclaire).\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMzc4NDk0LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.fPChb82exQ4HQjJ-TDzBVd0QgiRjmLdGViRSI4VQtkU\n\n",
"published": "2023-07-26T13:34:59.560885Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-26T13:34:59.560919Z",
"modified": "2023-07-26T13:34:59.575217Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1579,
"topic": "gcn.circular",
"uuid": "57571544-32eb-4f5d-a292-98c645367ee2",
"title": "Konus-Wind detection of GRB 230723A",
"submitter": "Hop gcn.circular",
"authors": "Anna Ridnaia at Ioffe Institute <ridnaia@mail.ioffe.ru>",
"data": {
"date": "23/07/26 15:06:31 GMT",
"from": "Anna Ridnaia at Ioffe Institute <ridnaia@mail.ioffe.ru>",
"title": "GCN CIRCULAR",
"number": "34269",
"subject": "Konus-Wind detection of GRB 230723A"
},
"message_text": "A.Ridnaia, D. Frederiks, A.Lysenko, D. Svinkin,\nA. Tsvetkova, M. Ulanov, and T. Cline,\non behalf of the Konus-Wind team, report:\n\nThe short-duration GRB 230723A\n(Fermi GBM detection: The Fermi GBM team, GCN 34232;\nAGILE/MCAL detection: Panebianco et al., GCN 34237;\nIPN triangulation: Kozyrev et al., GCN 34258)\ntriggered Konus-Wind at T0\u0016725.802 s UT (04:38:45.802).\n\nThe burst light curve shows a multipeaked structure,\nwhich starts at T0-0.346 s and has a total duration of ~0.62 s.\n\nThe Konus-Wind light curve of this GRB is available at\nhttp://www.ioffe.ru/LEA/GRBs/GRB230723_T16725/\n\nAs observed by Konus-Wind, the burst\nhad a fluence of 1.66(-0.06,+0.54)x10^-6 erg/cm2,\nand a 16-ms peak flux, measured from T0-0.220 s,\nof 8.56(-1.76,+3.29)x10^-6 erg/cm2/s\n(both in the 20 keV - 10 MeV energy range).\n\nSince the main fraction of the burst emission was detected\nbefore the trigger, the spectral analysis was performed using\nthe KW 3-channel light curve data.\n\nModelling the KW 3-channel time-integrated spectrum\n(measured from T0-0.346 s to T0+0.620 s)\nby a power law with exponential cutoff model:\ndN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep),\nyields alpha = -0.21(-0.26,+0.27) and Ep = 659(-99,+162) keV.\n\nAll the quoted errors are at the 68% confidence level.\nAll the quoted values are preliminary.\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMzgzOTk3LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.1YVdD6oI_jnkTugCoI-WQKG9G3zWXIQ06-Fc7mmbA2U\n\n",
"published": "2023-07-26T15:06:49.860388Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-26T15:06:49.860410Z",
"modified": "2023-07-26T15:06:49.870714Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1580,
"topic": "igwn.gwalert",
"uuid": "a9f3cee3-a225-4376-9bf1-648fd74c1838",
"title": "S230726a - UPDATE",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230726a/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S230726a/view/"
},
"event": {
"far": 3.832054318795527e-14,
"time": "2023-07-26T00:29:40.060Z",
"group": "CBC",
"search": "AllSky",
"area_50": 10424.027073522693,
"area_90": 27773.905307327936,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"L1"
],
"significant": true,
"skymap_hash": "6a46ea0df8a864a54794805884d3fc7f",
"classification": {
"BBH": 0.9999998589269592,
"BNS": 3.8818043107879957e-25,
"NSBH": 3.038812522528842e-23,
"Terrestrial": 1.4107304080468452e-07
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "UPDATE",
"sequence_num": 4,
"time_created": "2023-07-26T17:17:32Z",
"superevent_id": "S230726a",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-26T17:17:33.002656Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-26T17:17:33.002707Z",
"modified": "2023-07-26T17:17:33.031182Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1581,
"topic": "gcn.circular",
"uuid": "ddc8938a-202e-43a1-9bfb-3882b70545e8",
"title": "LIGO/Virgo/KAGRA S230726a: Updated Sky localization",
"submitter": "Hop gcn.circular",
"authors": "naresh.adhikari@ligo.org",
"data": {
"date": "23/07/26 17:22:24 GMT",
"from": "naresh.adhikari@ligo.org",
"title": "GCN CIRCULAR",
"number": "34270",
"subject": "LIGO/Virgo/KAGRA S230726a: Updated Sky localization"
},
"message_text": "The LIGO Scientific Collaboration, the Virgo Collaboration, and the\nKAGRA Collaboration report:\n\nWe have conducted further analysis of the LIGO Livingston Observatory\n(L1) data around the time of the compact binary merger (CBC) candidate\nS230726a (GCN Circular 34264).\nParameter estimation has been performed using Bilby [1] and a new sky\nmap, Bilby.multiorder.fits,0, distributed via GCN Notice, is available\nfor retrieval from the GraceDB event page:\n\nhttps://gracedb.ligo.org/superevents/S230726a\n\nFor the Bilby.multiorder.fits,0 sky map, the 90% credible region is\n27774 deg2. Marginalized over the whole sky, the a posteriori\nluminosity distance estimate is 2132 +/- 714 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\n [1] Ashton et al. ApJS 241, 27 (2019)\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMzkyMTUwLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.uvu8uqRFFMGX1Gfx-lBQ0uVOKT29hfKLeRRvhpP4jOo\n\n",
"published": "2023-07-26T17:22:35.879962Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-26T17:22:35.879989Z",
"modified": "2023-07-26T17:22:35.886192Z",
"nonlocalizedevents": [
{
"event_id": "S230726a"
}
],
"targets": []
},
{
"id": 1582,
"topic": "gcn.circular",
"uuid": "f660e206-5ff9-4db5-a2d6-1652bb6686fc",
"title": "GRB 230723B: Further CAHA observations and host galaxy detection",
"submitter": "Hop gcn.circular",
"authors": "Antonio de Ugarte Postigo at OCA <deugarte@oca.eu>",
"data": {
"date": "23/07/26 17:36:30 GMT",
"from": "Antonio de Ugarte Postigo at OCA <deugarte@oca.eu>",
"title": "GCN CIRCULAR",
"number": "34271",
"subject": "GRB 230723B: Further CAHA observations and host galaxy detection"
},
"message_text": "J.F. Agui Fernandez (IAA-CSIC), A. de Ugarte Postigo (OCA/CNRS), C.C. Thoene (ASU-CAS), J. Flores and Ana Guijarro Roman (CAHA) report:\n\nWe have performed follow-up observations on the GRB 230723B field (Page et al. GCN 34324, Osborne et al. GCN 34248) with CAFOS in the 2.2m telescope at the Calar Alto Observatory in Almeria, Spain. Observations consisted of 9x360s in i-band, starting at 2023-07-25T20:46:11 UT with a mean epoch 2.393 days after the burst. We detect the object reported in Agui Fernandez et al. (GCN 34251) at a magnitude consistent with our previous observation.\nThe early optical detection of the transient at a consistent location by Sasada et al. (GCN 34268) indicates that the detection in the first Calar Alto observation was already dominated by the host galaxy contribution. The interpolation from the observation of Sasada et al. (GCN 34251) to the one of Agui Fernandez et al. (GCN 34251) indicates a decay rate of at least alpha=1.1 (where F_nu ~ t^-alpha). Extrapolating this, the GRB afterglow should be dimmer than 24 mag at the time of our follow-up observations. We do note, that the host galaxy should be in the range for emission line spectroscopy with 8-10m telescopes.\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMzkyOTk1LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.oMBMlD2lkzZF4J27z9d-Z_UKOJHG8nJXlk-QYu5tyO8\n\n",
"published": "2023-07-26T17:36:40.305518Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-26T17:36:40.305537Z",
"modified": "2023-07-26T17:36:40.317158Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1583,
"topic": "gcn.circular",
"uuid": "20e9eecd-ca5b-4efd-979f-d0d8dcb25ff8",
"title": "Integral GRB230726.26: 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": "23/07/26 18:57:58 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"title": "GCN CIRCULAR",
"number": "34272",
"subject": "Integral GRB230726.26: 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-Tavrida robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Integral GRB230726.26 (trigger No 10345,02h 43m 39.77s , +61d 39m 22.3s, RP) errorbox 43577 sec after notice time and 43585 sec after trigger time at 2023-07-26 18:16:08 UT, with upper limit up to 18.3 mag. Observations started at twilight. The observations began at zenith distance = 42 deg. The sun altitude is -10.0 deg.\n\nThe galactic latitude b = 2 deg., longitude l = 136 deg.\n\n\nReal time updated cover map and OT discovered available here:\nhttps://master.sai.msu.ru/site/master2/observ.php?id\"45361\n\nWe obtain a following upper limits.\n\nTmid-T0 | Site |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____|_______|______|________\n\n 43676 | MASTER-Tavrida | C | 180 | 17.6 |\n 43868 | MASTER-Tavrida | C | 180 | 17.6 |\n 44059 | MASTER-Tavrida | C | 180 | 17.8 |\n 44251 | MASTER-Tavrida | C | 180 | 17.9 |\n 44444 | MASTER-Tavrida | C | 180 | 18.3 |\n 44635 | MASTER-Tavrida | C | 180 | 18.2 |\n 44828 | MASTER-Tavrida | C | 180 | 18.1 |\n 45019 | MASTER-Tavrida | C | 180 | 18.2 |\n 45211 | MASTER-Tavrida | C | 180 | 18.2 |\n 45403 | MASTER-Tavrida | C | 180 | 18.1 |\n 45594 | MASTER-Tavrida | C | 180 | 18.3 |\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.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMzk3ODg0LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.Eq3Cw_wE4Azo7PX3pPAzSZJ4VkK5o9bzdwSPExuTCVo\n\n",
"published": "2023-07-26T18:58:09.607195Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-26T18:58:09.607247Z",
"modified": "2023-07-26T18:58:09.616180Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1584,
"topic": "gcn.circular",
"uuid": "b2682977-7607-44eb-99f1-d3f86ec368ca",
"title": "IceCube-230724A: 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": "23/07/27 00:38:45 GMT",
"from": "Jessie Thwaites at IceCube/U Wisc-Madison <thwaites@wisc.edu>",
"title": "GCN CIRCULAR",
"number": "34273",
"subject": "IceCube-230724A: Upper limits from a search for additional neutrino events in IceCube"
},
"message_text": "The IceCube Collaboration (http://icecube.wisc.edu/) reports:\n\nIceCube has performed a search [1] for additional track-like muon neutrino events arriving from the direction of IceCube-230724A (https://gcn.nasa.gov/circulars/34265) in a time range of 1000 seconds centered on the alert event time (2023-07-24 01:40:53.380 UTC to 2023-07-24 01:57:33.380 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-230724A. 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-230724A is 1.5e-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 2e+05 GeV.\n\nA subsequent search was performed including 2 days of data centered on the alert event time (2023-07-23 01:49:13.380 UTC to 2023-07-25 01:49:13.380 UTC). In this case, we report a p-value of 1.00, consistent with no significant excess of track events. The IceCube sensitivity to neutrino point sources with an E^-2.5 spectrum (E^2 dN/dE at 1 TeV) within the locations spanned by the 90% spatial containment region of IceCube-230724A is 1.6e-01 GeV cm^-2 in a 2 day time window.\n\nThe IceCube Neutrino Observatory is a cubic-kilometer neutrino detector operating at the geographic South Pole, Antarctica. The IceCube realtime alert point of contact can be reached at roc@icecube.wisc.edu.\n\n[1] IceCube Collaboration, R. Abbasi et al., ApJ 910 4 (2021)\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwNDE4MzMxLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.twB5Qr10_DImPB6X8gIBXWklX9QOqg1OpEv7NIk0mww\n\n",
"published": "2023-07-27T00:38:57.056655Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-27T00:38:57.056707Z",
"modified": "2023-07-27T00:38:57.068043Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1585,
"topic": "gcn.circular",
"uuid": "f5e23d2e-80ed-429c-a9c2-12e92c3f7fa5",
"title": "Fermi trigger No 712143685: 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": "23/07/27 23:16:06 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"title": "GCN CIRCULAR",
"number": "34277",
"subject": "Fermi trigger No 712143685: 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-Tavrida robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB230727.40 (trigger No 712143685,08h 45m 55.92s , +67d 25m 58.8s, R5.95) errorbox 46132 sec after notice time and 46164 sec after trigger time at 2023-07-27 22:30:45 UT, with upper limit up to 17.9 mag. The observations began at zenith distance = 83 deg. The sun altitude is -26.1 deg.\n\nThe galactic latitude b = 36 deg., longitude l = 148 deg.\n\n\nReal time updated cover map and OT discovered available here:\nhttps://master.sai.msu.ru/site/master2/observ.php?id\"45798\n\nWe obtain a following upper limits.\n\nTmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n 46255 | 2023-07-27 22:30:45 | MASTER-Tavrida | (12h 21m 30.58s , +42d 33m 27.5s) | C | 180 | 15.0 |\n 46444 | 2023-07-27 22:33:54 | MASTER-Tavrida | (12h 21m 35.57s , +42d 34m 12.3s) | C | 180 | 15.5 |\n 46632 | 2023-07-27 22:37:02 | MASTER-Tavrida | (12h 21m 29.13s , +42d 34m 57.1s) | C | 180 | 15.3 |\n 46836 | 2023-07-27 22:40:26 | MASTER-Tavrida | (07h 12m 38.43s , +71d 49m 39.5s) | C | 180 | 14.2 |\n 47032 | 2023-07-27 22:43:42 | MASTER-Tavrida | (08h 44m 07.94s , +76d 40m 35.0s) | C | 180 | 17.6 |\n 47225 | 2023-07-27 22:46:55 | MASTER-Tavrida | (08h 50m 09.42s , +74d 46m 02.6s) | C | 180 | 17.6 |\n 48071 | 2023-07-27 23:01:01 | MASTER-Tavrida | (08h 52m 20.39s , +76d 39m 48.2s) | C | 180 | 17.9 |\nFilter C is a clear (unfiltred) band.\n\n\nThe observation and reduction will continue.\nThe message may be cited.\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwNDk5NzcxLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.JE5SkmU67RfpCzfCF12vk-xWQHDZBSk8Hc1wNNK9rYU\n\n",
"published": "2023-07-27T23:16:16.292937Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-27T23:16:16.292973Z",
"modified": "2023-07-27T23:16:16.303833Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1586,
"topic": "gcn.circular",
"uuid": "bb36ced7-5b09-4a42-8b11-d0a15eeeda4d",
"title": "Fermi-LAT gamma-ray observations of IceCube-230724A",
"submitter": "Hop gcn.circular",
"authors": "Simone Garrappa at DESY <simone.garrappa@desy.de>",
"data": {
"date": "23/07/28 00:08:28 GMT",
"from": "Simone Garrappa at DESY <simone.garrappa@desy.de>",
"title": "GCN CIRCULAR",
"number": "34278",
"subject": "Fermi-LAT gamma-ray observations of IceCube-230724A"
},
"message_text": "C. Bartolini (INFN Bari), S. Garrappa (Weizmann Institute of Science), S. Buson (Uni Wuerzburg) and J. Sinapius (DESY) on behalf of the Fermi-LAT collaboration:\n\nWe report an analysis of observations of the vicinity of the IC230724A high-energy neutrino event (GCN 34265) with all-sky survey data from the Large Area Telescope (LAT), on board the Fermi Gamma-ray Space Telescope. The IceCube event was detected on 2023-07-24 at 01:49:13.38 UT (T0) with J2000 position RA = 32.52 (+0.58, -0.40) deg, Decl. = -1.87 (+0.23, -0.33) deg (90% PSF containment). There are no Fermi 4FGL-DR3 cataloged gamma-ray (>100 MeV; The Fermi-LAT collaboration 2022, ApJS, 260, 53) sources in the 90% IC230724A uncertainty localization region.\n\nWe searched for intermediate (days to years) timescale emission from a new gamma-ray source. Preliminary analysis indicates no significant (> 5 sigma) new excess emission (> 100 MeV) at the IC230724A best-fit position. Assuming a power-law spectrum (photon index = 2.0 fixed) for a point source at the IC230724A best-fit position, the >100 MeV flux upper limit (95% confidence) is < 7.0e-10 ph cm^-2 s^-1 for ~15-years (2008-08-04 to 2023-07-24 UTC), and < 5.8e-9 (< 1.1e-7) ph cm^-2 s^-1 for a 1-month (1-day) integration time before T0.\n\n\nSince Fermi normally operates in an all-sky scanning mode, regular monitoring of this region will continue. For these observations the Fermi-LAT contact persons are C. Bartolini (chiara.bartolini at ba.infn.it), S. Garrappa (simone.garrappa at weizmann.ac.il), S. Buson (sara.buson at uni-wuerzburg.de) and J. Sinapius (jonas.sinapius at desy.de).\n\nThe Fermi-LAT is a pair conversion telescope designed to cover the energy band from 20 MeV to greater than 300 GeV. It is the product of an international collaboration between NASA and DOE in the U.S. and many scientific institutions across France, Italy, Japan and Sweden.\n\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwNTAyOTE0LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.A7Wb_uir5cBvQDJG9kYtWBCZbcD_gTHcVXDodwk4S8M\n\n",
"published": "2023-07-28T00:08:39.913717Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-28T00:08:39.913745Z",
"modified": "2023-07-28T00:08:39.923570Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1587,
"topic": "gcn.circular",
"uuid": "9390c056-c1b7-45ce-8a2a-1a4414aa17b4",
"title": "Fermi-LAT gamma-ray observations of IceCube-230725A",
"submitter": "Hop gcn.circular",
"authors": "Simone Garrappa at DESY <simone.garrappa@desy.de>",
"data": {
"date": "23/07/28 00:11:45 GMT",
"from": "Simone Garrappa at DESY <simone.garrappa@desy.de>",
"title": "GCN CIRCULAR",
"number": "34279",
"subject": "Fermi-LAT gamma-ray observations of IceCube-230725A"
},
"message_text": "S. Garrappa (Weizmann Institute of Science), C. Bartolini (INFN Bari), S. Buson (Uni Wuerzburg) and J. Sinapius (DESY) on behalf of the Fermi-LAT collaboration:\n\nWe report an analysis of observations of the vicinity of the IC230725A high-energy neutrino event (GCN 34261) with all-sky survey data from the Large Area Telescope (LAT), on board the Fermi Gamma-ray Space Telescope. The IceCube event was detected on 2023-07-25 at 21:30:51.06 UT (T0) with J2000 position RA = 327.04 (+2.27, -2.03) deg, Decl. = 12.33 (+1.80, -1.36) deg (90% PSF containment). There is one Fermi 4FGL-DR3 cataloged gamma-ray (>100 MeV; The Fermi-LAT collaboration 2022, ApJS, 260, 53) source in the 90% IC230725A uncertainty localization region. This is 4FGL J2150.8+1118 associated with the BL Lac object NVSS J215051+111915, located at 1.2 deg from the IC230725A position. Based on a preliminary analysis of the LAT data over a month and day timescale prior T0, this object is not significantly detected at gamma rays.\n\nWe searched for intermediate (days to years) timescale emission from a new gamma-ray source. Preliminary analysis indicates no significant (> 5 sigma) new excess emission (> 100 MeV) at the IC230725A best-fit position. Assuming a power-law spectrum (photon index = 2.0 fixed) for a point source at the IC230725A best-fit position, the >100 MeV flux upper limit (95% confidence) is < 3.5e-10 ph cm^-2 s^-1 for ~15-years (2008-08-04 to 2023-07-25 UTC), and < 5.3e-9 (< 7.3e-8) ph cm^-2 s^-1 for a 1-month (1-day) integration time before T0.\n\n\nSince Fermi normally operates in an all-sky scanning mode, regular monitoring of this region will continue. For these observations the Fermi-LAT contact persons are S. Garrappa (simone.garrappa at weizmann.ac.il), C. Bartolini (chiara.bartolini at ba.infn.it), S. Buson (sara.buson at uni-wuerzburg.de) and J. Sinapius (jonas.sinapius at desy.de).\n\nThe Fermi-LAT is a pair conversion telescope designed to cover the energy band from 20 MeV to greater than 300 GeV. It is the product of an international collaboration between NASA and DOE in the U.S. and many scientific institutions across France, Italy, Japan and Sweden.\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwNTAzMTA5LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.DI3y7aLBQN3p0Af_cava1rtHV4y_59pWFHG4G-6CHdo\n\n",
"published": "2023-07-28T00:11:54.441680Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-28T00:11:54.441702Z",
"modified": "2023-07-28T00:11:54.448060Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1588,
"topic": "igwn.gwalert",
"uuid": "f4684fd5-0189-4fa2-971d-4e8adbf93715",
"title": "S230728b - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230728b/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230728b/view/"
},
"event": {
"far": 2.270252933287646e-05,
"time": "2023-07-28T00:16:26.584Z",
"group": "CBC",
"search": "AllSky",
"area_50": 353.8671831621583,
"area_90": 3094.4756698935735,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "b05cd8bdb80fb7498df1028586f1a996",
"classification": {
"BBH": 0.06494524382429355,
"BNS": 3.764133243094051e-15,
"NSBH": 2.646069894769005e-13,
"Terrestrial": 0.9350547561754381
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-07-28T00:17:01Z",
"superevent_id": "S230728b",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-28T00:17:02.067219Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-28T00:17:02.067243Z",
"modified": "2023-07-28T00:17:02.074025Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1589,
"topic": "igwn.gwalert",
"uuid": "624fbad9-fa69-435c-a1a0-cd2d4e0a0a8b",
"title": "S230728b - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230728b/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230728b/view/"
},
"event": {
"far": 2.270252933287646e-05,
"time": "2023-07-28T00:16:26.584Z",
"group": "CBC",
"search": "AllSky",
"area_50": 353.8671831621583,
"area_90": 3094.4756698935735,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "b05cd8bdb80fb7498df1028586f1a996",
"classification": {
"BBH": 0.06494524382429355,
"BNS": 3.764133243094051e-15,
"NSBH": 2.646069894769005e-13,
"Terrestrial": 0.9350547561754381
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-28T00:21:36Z",
"superevent_id": "S230728b",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-28T00:21:37.747735Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-28T00:21:37.747756Z",
"modified": "2023-07-28T00:21:37.753741Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1590,
"topic": "igwn.gwalert",
"uuid": "64354c50-b8b1-4ffa-b0c5-6e18d874a040",
"title": "S230728d - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230728d/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230728d/view/"
},
"event": {
"far": 9.74124871909898e-06,
"time": "2023-07-28T00:24:23.727Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1330.0706042483969,
"area_90": 6676.580947654833,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.026260429225946468,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "97f27fe28d15d9accb9a2d07c07ce3cc",
"classification": {
"BBH": 0.19508455751749215,
"BNS": 8.733007588062513e-15,
"NSBH": 6.687457018065712e-13,
"Terrestrial": 0.8049154424818303
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-07-28T00:24:47Z",
"superevent_id": "S230728d",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-28T00:24:48.307431Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-28T00:24:48.307455Z",
"modified": "2023-07-28T00:24:48.313328Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1591,
"topic": "igwn.gwalert",
"uuid": "57ae21f3-44b7-40fd-b465-c5029668fe79",
"title": "S230728d - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230728d/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230728d/view/"
},
"event": {
"far": 9.74124871909898e-06,
"time": "2023-07-28T00:24:23.727Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1330.0706042483969,
"area_90": 6676.580947654833,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.026260429225946468,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "97f27fe28d15d9accb9a2d07c07ce3cc",
"classification": {
"BBH": 0.19508455751749215,
"BNS": 8.733007588062513e-15,
"NSBH": 6.687457018065712e-13,
"Terrestrial": 0.8049154424818303
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-28T00:29:23Z",
"superevent_id": "S230728d",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-28T00:29:24.742790Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-28T00:29:24.742813Z",
"modified": "2023-07-28T00:29:24.748899Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1592,
"topic": "gcn.circular",
"uuid": "c16cfc5d-fede-4484-a7bf-559ce3d4b86f",
"title": "GRB 230727A: Swift/BAT-GUANO detection of a burst",
"submitter": "Hop gcn.circular",
"authors": "Jimmy DeLaunay at University of Alabama <delauj2@gmail.com>",
"data": {
"date": "23/07/28 01:05:25 GMT",
"from": "Jimmy DeLaunay at University of Alabama <delauj2@gmail.com>",
"title": "GCN CIRCULAR",
"number": "34280",
"subject": "GRB 230727A: Swift/BAT-GUANO detection of a burst"
},
"message_text": "James DeLaunay (UAlabama), Gayathri Raman (PSU), Samuele Ronchini (PSU), Aaron Tohuvavohu (U Toronto), Jamie A. Kennea (PSU), Tyler Parsotan (NASA GSFC) report:\n\nSwift/BAT did not localize GRB 230727A onboard (T0: 2023-07-27T11:03:06.85 UTC, Fermi Trig 712148591, GCN 34275).\n\nThe Fermi notice, distributed in near real-time, triggered the Swift Mission Operations Center operated Gamma-ray Urgent Archiver for Novel Opportunities (GUANO; Tohuvavohu et al. 2020, ApJ, 900, 1).\n\nUpon trigger by this notice, GUANO sent a command to the Swift Burst Alert Telescope (BAT) to save 200 seconds of BAT event-mode data from [-50,+150] seconds around the time of the burst. All the requested event mode data was delivered to the ground.\n\nThe BAT likelihood search, NITRATES (DeLaunay + Tohuvavohu 2022, ApJ, 941, 169), detects the burst with a sqrt(TS) of 11 in a 2.048 s analysis time bin.\n\nNITRATES results, independently, are ambiguous with respect to whether this burst originates from in or outside the BAT coded FOV, with a borderline DeltaLLHOut of 7.4.\nThe Fermi GBM localization (GCN 34275) has this burst significantly outside of the BAT coded FOV\n\nSee Section 9.1 and Figures 10 and 17 in the NITRATES paper for brief descriptions and interpretation of sqrt(TS), DeltaLLHPeak, and DeltaLLHOut.\n\nGUANO is a fully autonomous, extremely low latency, spacecraft\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.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwNTA2MzMwLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.7Zq7WHUIWbuhJMDXIek_ix_K1rR-GqMh1a0Std90zkg\n\n",
"published": "2023-07-28T01:05:36.580816Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-28T01:05:36.580837Z",
"modified": "2023-07-28T01:05:36.591593Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1593,
"topic": "gcn.circular",
"uuid": "777aa40d-892e-4105-95e7-03b73c7d284c",
"title": "Swift GRB230728.12: 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": "23/07/28 02:56:43 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"title": "GCN CIRCULAR",
"number": "34281",
"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",
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},
{
"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",
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"retracted": false,
"created": "2023-07-28T03:07:15.023848Z",
"modified": "2023-07-28T03:07:15.030188Z",
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},
{
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"topic": "igwn.gwalert",
"uuid": "2559409d-47df-45f3-bd5b-99c4195c8a1d",
"title": "S230728ac - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"time_created": "2023-07-28T05:36:40Z",
"superevent_id": "S230728ac",
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},
"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",
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},
{
"id": 1596,
"topic": "igwn.gwalert",
"uuid": "805e814c-dc2c-4e4c-a3aa-9c83979067c4",
"title": "S230728ac - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"time": "2023-07-28T05:36:16.021Z",
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"sequence_num": 2,
"time_created": "2023-07-28T05:41:14Z",
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},
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"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",
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},
{
"id": 1597,
"topic": "igwn.gwalert",
"uuid": "811d4018-2928-4eb3-811f-5a681e5899c8",
"title": "S230728ak - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"time": "2023-07-28T06:34:36.693Z",
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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",
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},
{
"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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},
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"time": "2023-07-28T06:34:36.693Z",
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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": [],
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},
{
"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",
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"targets": []
},
{
"id": 1600,
"topic": "igwn.gwalert",
"uuid": "c0bf6b34-c0e8-473b-b01c-90704ff2f384",
"title": "S230728ap - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"published": "2023-07-28T08:36:56.510851Z",
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]
}
