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{
"count": 257729,
"next": "https://hermes.lco.global/api/v0/messages/?format=api&limit=100&offset=2000&ordering=id",
"previous": "https://hermes.lco.global/api/v0/messages/?format=api&limit=100&offset=1800&ordering=id",
"results": [
{
"id": 1901,
"topic": "gcn.circular",
"uuid": "6755d0dd-693b-49d8-8bec-dd107a0377e3",
"title": "LIGO/Virgo/KAGRA S230807f: Identification of a GW compact binary merger candidate",
"submitter": "Hop gcn.circular",
"authors": "Dripta Bhattacharjee <dripta.bhattacharjee@ligo.org>",
"data": {
"date": "23/08/07 21:46:40 GMT",
"from": "Dripta Bhattacharjee <dripta.bhattacharjee@ligo.org>",
"title": "GCN CIRCULAR",
"number": "34360",
"subject": "LIGO/Virgo/KAGRA S230807f: 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 S230807f during\nreal-time processing of data from LIGO Hanford Observatory (H1) and\nLIGO Livingston Observatory (L1) at 2023-08-07 20:50:45.416 UTC (GPS\ntime: 1375476663.416). The candidate was found by the CWB [1], GstLAL\n[2], MBTA [3], PyCBC Live [4], and SPIIR [5] analysis pipelines.\n\nS230807f is an event of interest because its false alarm rate, as\nestimated by the online analysis, is 7.1e-08 Hz, or about one in 5\nmonths. The event's properties can be found at this URL:\n\nhttps://gracedb.ligo.org/superevents/S230807f\n\nThe classification of the GW signal, in order of descending\nprobability, is BBH (86%), Terrestrial (14%), NSBH (<1%), or BNS\n(<1%).\n\nThere was a high rate of noise transients (glitches) in both the LIGO\nLivingston and Hanford detectors which may affect the parameters or the significance\nof the candidate.\n\nAssuming the candidate is astrophysical in origin, the probability\nthat the lighter compact object is consistent with a neutron star mass\n(HasNS) is <1%. [6] Using the masses and spins inferred from the\nsignal, the probability of matter outside the final compact object\n(HasRemnant) is <1%. [6] Both HasNS and HasRemnant consider the\nsupport of several neutron star equations of state. The probability\nthat either of the binary components lies between 3 and 5 solar masses\n(HasMassgap) is 4%.\n\nTwo sky maps are available at this time and can be retrieved from the\nGraceDB event page:\n * bayestar.multiorder.fits,1, an initial localization generated by\nBAYESTAR [7], distributed via GCN notice about 35 seconds after the\ncandidate event time.\n * bayestar.multiorder.fits,2, an initial localization generated by\nBAYESTAR [7], distributed via GCN notice about 5 minutes after the\ncandidate event time.\n\nThe preferred sky map at this time is bayestar.multiorder.fits,2. For\nthe bayestar.multiorder.fits,2 sky map, the 90% credible region is\n6088 deg2. Marginalized over the whole sky, the a posteriori\nluminosity distance estimate is 6818 +/- 2379 Mpc (a posteriori mean\n+/- standard deviation).\n\nFor further information about analysis methodology and the contents of\nthis alert, refer to the LIGO/Virgo/KAGRA Public Alerts User Guide\nhttps://emfollow.docs.ligo.org/userguide/.\n\n [1] Klimenko et al. PRD 93, 042004 (2016)\n [2] Tsukada et al. arXiv:2305.06286 (2023) and Ewing et al.\narXiv:2305.05625 (2023)\n [3] Aubin et al. CQG 38, 095004 (2021)\n [4] Dal Canton et al. ApJ 923, 254 (2021)\n [5] Chu et al. PRD 105, 024023 (2022)\n [6] Chatterjee et al. ApJ 896, 54 (2020)\n [7] Singer & Price PRD 93, 024013 (2016)\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkxNDQ0ODA1LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.B-yzwefh2S-1h2Ra7OaFIiO18HVyksvS6zmgv-Ne5KI\n\n",
"published": "2023-08-07T21:46:50.744594Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-07T21:46:50.744615Z",
"modified": "2023-08-07T21:46:50.753408Z",
"nonlocalizedevents": [
{
"event_id": "S230807f"
}
],
"targets": []
},
{
"id": 1902,
"topic": "gcn.circular",
"uuid": "90ddc965-29be-4993-9d78-3a731afff964",
"title": "GRB 230807A: 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": "23/08/07 22:35:36 GMT",
"from": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
"title": "GCN CIRCULAR",
"number": "34361",
"subject": "GRB 230807A: Fermi GBM Final Real-time Localization"
},
"message_text": "The Fermi GBM team reports the detection of a likely LONG GRB\n\nAt 22:25:01 UT on 7 Aug 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230807A (trigger 713139906.818582 / 230807934).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 73.3, Dec = -51.0 (J2000 degrees, equivalent to J2000 04h 53m, -51d 00'), with a statistical uncertainty of 3.5 degrees.\n\nThe angle from the Fermi LAT boresight is 96.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230807934/quicklook/glg_skymap_all_bn230807934.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/bn230807934/quicklook/glg_healpix_all_bn230807934.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230807934/quicklook/glg_lc_medres34_bn230807934.gif\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkxNDQ3NzQxLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.3HtcCqbaofALmA6CMWBdTvWPttNA94nfv4mGGOJNUXU\n\n",
"published": "2023-08-07T22:35:47.013813Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-07T22:35:47.013832Z",
"modified": "2023-08-07T22:35:47.022061Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1903,
"topic": "gcn.circular",
"uuid": "65eaab27-05e2-4d2f-a943-df65234a2b17",
"title": "Fermi trigger No 713134237: Global MASTER-Net observations report",
"submitter": "Hop gcn.circular",
"authors": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"data": {
"date": "23/08/08 00:45:40 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"title": "GCN CIRCULAR",
"number": "34362",
"subject": "Fermi trigger No 713134237: Global MASTER-Net observations report"
},
"message_text": "V. Lipunov, V.Kornilov, E.Gorbovskoy, K.Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, D. Vlasenko,\nG.Antipov, D.Zimnukhov, V.Senik, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D.Cheryasov, Ya.Kechin\n(Lomonosov Moscow State University, SAI, Physics Department),\n\nR. Podesta, C.Lopez, F. Podesta, C.Francile\n(Observatorio Astronomico Felix Aguilar OAFA),\n\nR. Rebolo, M. Serra\n(The Instituto de Astrofisica de Canarias),\n\nD. Buckley\n(South African Astronomical Observatory),\n\nO.A. Gres, N.M. Budnev\n(Irkutsk State University, API),\n\nL.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez\n(INAOE, Guillermo Haro Astrophysics Observatory),\n\nA. Tlatov, D. Dormidontov\n(Kislovodsk Solar Station of the Pulkovo Observatory),\n\nA. Gabovich, V.Yurkov\n(Blagoveschensk Educational State University)\n\n\nMASTER-SAAO robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in South Africa (South African Astronomical Observatory) started inspect of the Fermi GRB230807.87 (trigger No 713134237,05h 37m 40.01s , -31d 58m 00.1s, RP) errorbox 6409 sec after notice time and 6444 sec after trigger time at 2023-08-07 22:37:57 UT, with upper limit up to 18.1 mag. The observations began at zenith distance = 80 deg. The sun altitude is -74.3 deg.\n\nThe galactic latitude b = -28 deg., longitude l = 236 deg.\n\n\nReal time updated cover map and OT discovered available here:\nhttps://master.sai.msu.ru/site/master2/observ.php?id\"51304\n\nWe obtain a following upper limits.\n\nTmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n 6475 | 2023-08-07 22:37:57 | MASTER-SAAO | (04h 52m 47.80s , -51d 03m 55.2s) | C | 60 | 17.3 |\n 6535 | 2023-08-07 22:37:57 | MASTER-SAAO | (04h 52m 47.80s , -51d 03m 55.2s) | C | 180 | 17.9 | Coadd\n 6475 | 2023-08-07 22:37:57 | MASTER-SAAO | (04h 51m 35.23s , -51d 03m 20.2s) | C | 60 | 17.4 |\n 6535 | 2023-08-07 22:37:57 | MASTER-SAAO | (04h 51m 35.21s , -51d 03m 20.2s) | C | 180 | 18.1 | Coadd\n 6554 | 2023-08-07 22:39:16 | MASTER-SAAO | (04h 52m 47.69s , -51d 02m 55.7s) | C | 60 | 17.2 |\n 6554 | 2023-08-07 22:39:16 | MASTER-SAAO | (04h 51m 35.14s , -51d 02m 20.1s) | C | 60 | 17.3 |\n 6646 | 2023-08-07 22:40:48 | MASTER-SAAO | (04h 52m 53.74s , -51d 03m 56.6s) | C | 60 | 17.3 |\n 6646 | 2023-08-07 22:40:48 | MASTER-SAAO | (04h 51m 41.02s , -51d 03m 21.5s) | C | 60 | 17.4 |\n 6736 | 2023-08-07 22:42:19 | MASTER-SAAO | (04h 52m 46.43s , -51d 04m 58.9s) | C | 60 | 16.9 |\n 6736 | 2023-08-07 22:42:19 | MASTER-SAAO | (04h 51m 33.61s , -51d 04m 23.3s) | C | 60 | 17.1 |\nFilter C is a clear (unfiltred) band.\n\n\nThe observation and reduction will continue.\nThe message may be cited.\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkxNDU1NTQ2LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.y-DZhbcGQ_DupmhtioLKYRLE2Grp66eZ4vMGQ4KKnZ8\n\n",
"published": "2023-08-08T00:45:51.641333Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-08T00:45:51.641353Z",
"modified": "2023-08-08T00:45:51.648582Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1904,
"topic": "gcn.circular",
"uuid": "abd9175b-9550-4a50-951a-028833005844",
"title": "Fermi GRB 230807A: Global MASTER-Net observations report",
"submitter": "Hop gcn.circular",
"authors": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"data": {
"date": "23/08/08 00:45:47 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"title": "GCN CIRCULAR",
"number": "34363",
"subject": "Fermi GRB 230807A: Global MASTER-Net observations report"
},
"message_text": "V. Lipunov, V.Kornilov, E.Gorbovskoy, K.Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, D. Vlasenko,\nG.Antipov, D.Zimnukhov, V.Senik, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D.Cheryasov, Ya.Kechin\n(Lomonosov Moscow State University, SAI, Physics Department),\n\nR. Podesta, C.Lopez, F. Podesta, C.Francile\n(Observatorio Astronomico Felix Aguilar OAFA),\n\nR. Rebolo, M. Serra\n(The Instituto de Astrofisica de Canarias),\n\nD. Buckley\n(South African Astronomical Observatory),\n\nO.A. Gres, N.M. Budnev\n(Irkutsk State University, API),\n\nL.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez\n(INAOE, Guillermo Haro Astrophysics Observatory),\n\nA. Tlatov, D. Dormidontov\n(Kislovodsk Solar Station of the Pulkovo Observatory),\n\nA. Gabovich, V.Yurkov\n(Blagoveschensk Educational State University)\n\n\nMASTER-SAAO robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in South Africa (South African Astronomical Observatory) started inspect of the Fermi GRB 230807A ( Fermi GBM team, GCN 34361) errorbox 740 sec after notice time and 775 sec after trigger time at 2023-08-07 22:37:57 UT, with upper limit up to 18.1 mag. The observations began at zenith distance = 80 deg. The sun altitude is -74.3 deg.\n\nThe galactic latitude b = -39 deg., longitude l = 258 deg.\n\n\nReal time updated cover map and OT discovered available here:\nhttps://master.sai.msu.ru/site/master2/observ.php?id\"51439\n\nWe obtain a following upper limits.\n\nTmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n 805 | 2023-08-07 22:37:57 | MASTER-SAAO | (04h 52m 47.80s , -51d 03m 55.2s) | C | 60 | 17.3 |\n 865 | 2023-08-07 22:37:57 | MASTER-SAAO | (04h 52m 47.80s , -51d 03m 55.2s) | C | 180 | 17.9 | Coadd\n 805 | 2023-08-07 22:37:57 | MASTER-SAAO | (04h 51m 35.23s , -51d 03m 20.2s) | C | 60 | 17.4 |\n 865 | 2023-08-07 22:37:57 | MASTER-SAAO | (04h 51m 35.21s , -51d 03m 20.2s) | C | 180 | 18.1 | Coadd\n 885 | 2023-08-07 22:39:16 | MASTER-SAAO | (04h 52m 47.69s , -51d 02m 55.7s) | C | 60 | 17.2 |\n 885 | 2023-08-07 22:39:16 | MASTER-SAAO | (04h 51m 35.14s , -51d 02m 20.1s) | C | 60 | 17.3 |\n 977 | 2023-08-07 22:40:48 | MASTER-SAAO | (04h 52m 53.74s , -51d 03m 56.6s) | C | 60 | 17.3 |\n 977 | 2023-08-07 22:40:48 | MASTER-SAAO | (04h 51m 41.02s , -51d 03m 21.5s) | C | 60 | 17.4 |\n 1067 | 2023-08-07 22:42:19 | MASTER-SAAO | (04h 52m 46.43s , -51d 04m 58.9s) | C | 60 | 16.9 |\n 1067 | 2023-08-07 22:42:19 | MASTER-SAAO | (04h 51m 33.61s , -51d 04m 23.3s) | C | 60 | 17.1 |\nFilter C is a clear (unfiltred) band.\n\n\nThe observation and reduction will continue.\nThe message may be cited.\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkxNDU1NTUyLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.9GL8Y-OdP1Su-9-dwjuF8a7Y0SM7kRyHegWySXAs4NQ\n\n",
"published": "2023-08-08T00:45:57.663113Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-08T00:45:57.663131Z",
"modified": "2023-08-08T00:45:57.669230Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1905,
"topic": "igwn.gwalert",
"uuid": "827886e7-03e7-4843-8405-07e6bb61151a",
"title": "S230808b - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230808b/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230808b/view/"
},
"event": {
"far": 5.461165786612623e-06,
"time": "2023-08-08T01:07:48.314Z",
"group": "CBC",
"search": "AllSky",
"area_50": 591.0725496399643,
"area_90": 2843.5268699754333,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.3206388049097414,
"HasMassGap": 0.08033637465120842,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "580b4968286e5c3006bacb85ece94586",
"classification": {
"BBH": 0.0023702561720514003,
"BNS": 0.0,
"NSBH": 0.004087050169594436,
"Terrestrial": 0.9935426936583541
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-08-08T01:08:13Z",
"superevent_id": "S230808b",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-08T01:08:14.533573Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-08T01:08:14.533593Z",
"modified": "2023-08-08T01:08:14.539602Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1906,
"topic": "igwn.gwalert",
"uuid": "9883804e-391a-426c-a132-e327c7b6ae95",
"title": "S230808b - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230808b/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230808b/view/"
},
"event": {
"far": 5.461165786612623e-06,
"time": "2023-08-08T01:07:48.314Z",
"group": "CBC",
"search": "AllSky",
"area_50": 591.0725496399643,
"area_90": 2843.5268699754333,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.3206388049097414,
"HasMassGap": 0.08033637465120842,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "580b4968286e5c3006bacb85ece94586",
"classification": {
"BBH": 0.0023702561720514003,
"BNS": 0.0,
"NSBH": 0.004087050169594436,
"Terrestrial": 0.9935426936583541
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-08T01:12:48Z",
"superevent_id": "S230808b",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-08T01:12:49.043254Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-08T01:12:49.043275Z",
"modified": "2023-08-08T01:12:49.049375Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1907,
"topic": "gcn.circular",
"uuid": "4513159a-1367-49aa-85b6-d2fa4adbb7bf",
"title": "transient SPT-SVJ025406.5-702837: ATCA follow-up observations",
"submitter": "Hop gcn.circular",
"authors": "Dougal Dobie at Swinburne University of Technology <ddobie94@gmail.com>",
"data": {
"date": "23/08/08 02:44:48 GMT",
"from": "Dougal Dobie at Swinburne University of Technology <ddobie94@gmail.com>",
"title": "GCN CIRCULAR",
"number": "34364",
"subject": "transient SPT-SVJ025406.5-702837: ATCA follow-up observations"
},
"message_text": "A. Gulati (U. Sydney), D. Dobie (Swinburne/OzGrav), A.Y.Q Ho\n(Cornell), D.L. Kaplan (UW Milwaukee), T. Murphy (U. Sydney)\n\nWe observed the location of SPT-SVJ025406.5-702837 (GCN #34301)\nfor 8.5 hours starting from 2023-08-04T22:00 with the Australia\nTelescope Compact Array (ATCA). Observations were conducted with\nthe C/X receiver with 2x2048 MHz bands centered on 5.5 and 9 GHz.\n\nWe find marginal (3 sigma) evidence for a source located at\n\nRA: 02:54:04.74\nDec: -70:28:37.2,\n\noffset from the coordinates of SPT-SVJ025406.5-702837 by ~9\narcseconds, but within the reported 12 arcseconds uncertainty.\n\nThe source has a flux density of 42+/-12 uJy at 9 GHz but is not\ndetected at 5.5 GHz with a 3-sigma upper limit of ~40 uJy,\nimplying a spectral index of alpha >~ 0.1.\n\nWe acknowledge the Gomeroi people as the traditional owners of the\nObservatory site. The Australia Telescope Compact Array is part of\nthe Australia Telescope National Facility (https://ror.org/05qajvd42)\nwhich is funded by the Australian Government for operation as a\nNational Facility managed by CSIRO.\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkxNDYyNjk0LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.ZJeU018tPJ1DeTTdy_3o59PKsbPDATMQg1-RgMX4BLY\n\n",
"published": "2023-08-08T02:44:59.343571Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-08T02:44:59.343592Z",
"modified": "2023-08-08T02:44:59.352638Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1908,
"topic": "igwn.gwalert",
"uuid": "1d39d847-3a1a-4ab2-a53f-0ca4e4b1d133",
"title": "S230807f - UPDATE",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230807f/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S230807f/view/"
},
"event": {
"far": 7.141757350979996e-08,
"time": "2023-08-07T20:50:45.416Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1560.4567098588623,
"area_90": 5436.104940032728,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": true,
"skymap_hash": "5317d53a10468cb3138930fd0141c66c",
"classification": {
"BBH": 0.9531444746139138,
"BNS": 7.709956723248038e-16,
"NSBH": 5.975891496337405e-14,
"Terrestrial": 0.046855525386025665
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "UPDATE",
"sequence_num": 4,
"time_created": "2023-08-08T02:49:48Z",
"superevent_id": "S230807f",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-08T02:49:49.839818Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-08T02:49:49.839848Z",
"modified": "2023-08-08T02:49:49.846010Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1909,
"topic": "gcn.circular",
"uuid": "526856e0-8cfc-4f9c-ac4c-f0a48c2e124c",
"title": "LIGO/Virgo/KAGRA S230807f: Updated Sky localization and EM Bright Classification",
"submitter": "Hop gcn.circular",
"authors": "carl.haster@unlv.edu",
"data": {
"date": "23/08/08 02:53:38 GMT",
"from": "carl.haster@unlv.edu",
"title": "GCN CIRCULAR",
"number": "34365",
"subject": "LIGO/Virgo/KAGRA S230807f: Updated Sky localization and EM Bright Classification"
},
"message_text": "The LIGO Scientific Collaboration, the Virgo Collaboration, and the KAGRA Collaboration report:\n\nWe have conducted further analysis of the LIGO Hanford Observatory (H1) and LIGO Livingston Observatory (L1) data around the time of the compact binary merger (CBC) candidate S230807f (GCN Circular 34360). Parameter estimation has been performed using Bilby [1] and a new sky map, Bilby.offline0.multiorder.fits,0, distributed via GCN Notice, is available for retrieval from the GraceDB event page:\n\nhttps://gracedb.ligo.org/superevents/S230807f\n\nBased on posterior support from parameter estimation [1], under the assumption that the candidate S230807f is astrophysical in origin, the probability that the lighter compact object is consistent with a neutron star mass (HasNS) is <1%. [2] Using the masses and spins inferred from the signal, the probability of matter outside the final compact object (HasRemnant) is <1%. [2] Both HasNS and HasRemnant consider the support of several neutron star equations of state. The probability that either of the binary components lies between 3 and 5 solar masses (HasMassgap) is <1%.\n\nFor the Bilby.offline0.multiorder.fits,0 sky map, the 90% credible region is 5436 deg2. Marginalized over the whole sky, the a posteriori luminosity distance estimate is 5272 +/- 1900 Mpc (a posteriori mean +/- standard deviation).\n\nFor further information about analysis methodology and the contents of this alert, refer to the LIGO/Virgo/KAGRA Public Alerts User Guide https://emfollow.docs.ligo.org/userguide/.\n\n\n [1] Ashton et al. ApJS 241, 27 (2019)\n [2] Chatterjee et al. ApJ 896, 54 (2020)\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkxNDYzMjI0LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.9rLmOhPUUswez1-uEnV_5HvXlmId3mjdJNKLPUpa-U8\n\n",
"published": "2023-08-08T02:53:49.625738Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-08T02:53:49.625756Z",
"modified": "2023-08-08T02:53:49.631579Z",
"nonlocalizedevents": [
{
"event_id": "S230807f"
}
],
"targets": []
},
{
"id": 1910,
"topic": "igwn.gwalert",
"uuid": "01631b7e-a8da-4889-93d6-5056129bb060",
"title": "S230808e - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230808e/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230808e/view/"
},
"event": {
"far": 2.27313e-05,
"time": "2023-08-08T03:57:07.804Z",
"group": "Burst",
"search": "AllSky",
"area_50": 759.9803957387118,
"area_90": 4418.251571802886,
"duration": 0.009485,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "0a084d4ad3f69ee855b7ce7e27f8c1d2",
"classification": {},
"skymap_version": 0,
"central_frequency": 239.287949
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-08-08T03:58:52Z",
"superevent_id": "S230808e",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-08T03:58:53.614582Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-08T03:58:53.614612Z",
"modified": "2023-08-08T03:58:53.622546Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1911,
"topic": "igwn.gwalert",
"uuid": "24493a23-2a13-4ec5-ba2d-68981fff8c62",
"title": "S230808e - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230808e/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230808e/view/"
},
"event": {
"far": 2.27313e-05,
"time": "2023-08-08T03:57:07.804Z",
"group": "Burst",
"search": "AllSky",
"area_50": 759.9803957387118,
"area_90": 4418.251571802886,
"duration": 0.009485,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "0a084d4ad3f69ee855b7ce7e27f8c1d2",
"classification": {},
"skymap_version": 0,
"central_frequency": 239.287949
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-08T04:03:27Z",
"superevent_id": "S230808e",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-08T04:03:28.313422Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-08T04:03:28.313444Z",
"modified": "2023-08-08T04:03:28.319477Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1912,
"topic": "igwn.gwalert",
"uuid": "e37e9040-6b67-479f-99c5-a5c81dafde12",
"title": "S230808h - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230808h/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230808h/view/"
},
"event": {
"far": 9.13639608910518e-06,
"time": "2023-08-08T04:03:31.005Z",
"group": "CBC",
"search": "AllSky",
"area_50": 986.3798565344241,
"area_90": 3531.747659048591,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "e9d41ea98290b540a6ee53d30c021353",
"classification": {
"BBH": 0.17688901148311986,
"BNS": 1.3352442840363573e-22,
"NSBH": 1.198999105331091e-20,
"Terrestrial": 0.8231109885168801
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-08-08T04:03:57Z",
"superevent_id": "S230808h",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-08T04:03:58.426849Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-08T04:03:58.426886Z",
"modified": "2023-08-08T04:03:58.435555Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1913,
"topic": "igwn.gwalert",
"uuid": "97ee0765-310c-4d26-97ac-ea8298def034",
"title": "S230808i - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230808i/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230808i/view/"
},
"event": {
"far": 6.85142e-11,
"time": "2023-08-08T04:03:46.430Z",
"group": "Burst",
"search": "BBH",
"area_50": 2257.6999056180393,
"area_90": 7195.264420395335,
"duration": 0.018072,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": true,
"skymap_hash": "c614160e7268916b9215cadf880b6aa9",
"classification": {},
"skymap_version": 0,
"central_frequency": 53.462563
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-08-08T04:06:36Z",
"superevent_id": "S230808i",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-08T04:06:37.909513Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-08T04:06:37.909533Z",
"modified": "2023-08-08T04:06:37.915675Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1914,
"topic": "igwn.gwalert",
"uuid": "5488293f-86fc-4b84-b814-6ba77af5e594",
"title": "S230808h - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230808h/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230808h/view/"
},
"event": {
"far": 9.13639608910518e-06,
"time": "2023-08-08T04:03:31.005Z",
"group": "CBC",
"search": "AllSky",
"area_50": 986.3798565344241,
"area_90": 3531.747659048591,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "e9d41ea98290b540a6ee53d30c021353",
"classification": {
"BBH": 0.17688901148311986,
"BNS": 1.3352442840363573e-22,
"NSBH": 1.198999105331091e-20,
"Terrestrial": 0.8231109885168801
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-08T04:08:32Z",
"superevent_id": "S230808h",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-08T04:08:34.200260Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-08T04:08:34.200283Z",
"modified": "2023-08-08T04:08:34.206161Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1915,
"topic": "igwn.gwalert",
"uuid": "211eefea-b138-441c-be73-85affe3c7dc6",
"title": "S230808i - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230808i/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230808i/view/"
},
"event": {
"far": 6.85142e-11,
"time": "2023-08-08T04:03:46.430Z",
"group": "Burst",
"search": "BBH",
"area_50": 2257.6999056180393,
"area_90": 7195.264420395335,
"duration": 0.018072,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": true,
"skymap_hash": "c614160e7268916b9215cadf880b6aa9",
"classification": {},
"skymap_version": 0,
"central_frequency": 53.462563
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-08T04:11:12Z",
"superevent_id": "S230808i",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-08T04:11:12.663484Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-08T04:11:12.663506Z",
"modified": "2023-08-08T04:11:12.669523Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1916,
"topic": "gcn.circular",
"uuid": "34f3c269-9798-4cb4-aee1-6ac986eb417b",
"title": "LIGO/Virgo/KAGRA S230808i: Identification of a GW unmodeled transient candidate",
"submitter": "Hop gcn.circular",
"authors": "Shivaraj Kandhasamy at Inter-University Centre for Astronomy and Astrophysics (LVK collaboration) <shivaraj@iucaa.in>",
"data": {
"date": "23/08/08 05:18:56 GMT",
"from": "Shivaraj Kandhasamy at Inter-University Centre for Astronomy and Astrophysics (LVK collaboration) <shivaraj@iucaa.in>",
"title": "GCN CIRCULAR",
"number": "34366",
"subject": "LIGO/Virgo/KAGRA S230808i: Identification of a GW unmodeled transient candidate"
},
"message_text": "The LIGO Scientific Collaboration, the Virgo Collaboration, and the\nKAGRA Collaboration report:\n\nWe identified the unmodeled transient candidate S230808i during real-\ntime processing of data from LIGO Hanford Observatory (H1) and LIGO\nLivingston Observatory (L1) at 2023-08-08 04:03:46.430 UTC (GPS time:\n1375502644.430). The candidate was found by the CWB [1] analysis\npipeline.\n\nS230808i is an event of interest because its false alarm rate, as\nestimated by the online analysis, is 6.9e-11 Hz, or about one in 1e3\nyears. The event's properties can be found at this URL:\n\nhttps://gracedb.ligo.org/superevents/S230808i\n\nTwo sky maps are available at this time and can be retrieved from the\nGraceDB event page:\n * cwb.multiorder.fits,0, an initial localization generated by cWB\n[1], distributed via GCN notice about 2 minutes after the candidate\nevent time.\n * cwb.multiorder.fits,1, an initial localization generated by cWB\n[1], distributed via GCN notice about 7 minutes after the candidate\nevent time.\n\nThe preferred sky map at this time is cwb.multiorder.fits,1. For the\ncwb.multiorder.fits,1 sky map, the 90% credible region is 7195 deg2.\n\nFor further information about analysis methodology and the contents of\nthis alert, refer to the LIGO/Virgo/KAGRA Public Alerts User Guide\nhttps://emfollow.docs.ligo.org/userguide/.\n\n [1] Klimenko et al. PRD 93, 042004 (2016)\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkxNDcxOTQyLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.4BGkZZUppGSFAen10MN1Dx57lGuXTN_FeYTZAd-_eYI\n\n",
"published": "2023-08-08T05:19:11.523778Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-08T05:19:11.523797Z",
"modified": "2023-08-08T05:19:11.531182Z",
"nonlocalizedevents": [
{
"event_id": "S230808i"
}
],
"targets": []
},
{
"id": 1917,
"topic": "igwn.gwalert",
"uuid": "f235d5d1-b4c2-4ef2-a89b-ebdf96548eb0",
"title": "S230808r - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230808r/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230808r/view/"
},
"event": {
"far": 2.125354257192313e-05,
"time": "2023-08-08T06:30:36.690Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1362.3834095890268,
"area_90": 5297.621488572886,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.012106583072100312,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "4f30859202ca8069502d9c34a8b5b54a",
"classification": {
"BBH": 0.07257978418101997,
"BNS": 9.971886789242403e-14,
"NSBH": 6.883071636074089e-12,
"Terrestrial": 0.9274202158119972
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-08-08T06:31:00Z",
"superevent_id": "S230808r",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-08T06:31:02.278140Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-08T06:31:02.278172Z",
"modified": "2023-08-08T06:31:02.287055Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1918,
"topic": "igwn.gwalert",
"uuid": "4b01f91e-c87c-4720-ac79-160f7d5011bf",
"title": "S230808r - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230808r/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230808r/view/"
},
"event": {
"far": 2.125354257192313e-05,
"time": "2023-08-08T06:30:36.690Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1362.3834095890268,
"area_90": 5297.621488572886,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.012106583072100312,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "4f30859202ca8069502d9c34a8b5b54a",
"classification": {
"BBH": 0.07257978418101997,
"BNS": 9.971886789242403e-14,
"NSBH": 6.883071636074089e-12,
"Terrestrial": 0.9274202158119972
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-08T06:35:35Z",
"superevent_id": "S230808r",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-08T06:35:36.849981Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-08T06:35:36.850002Z",
"modified": "2023-08-08T06:35:36.855567Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1919,
"topic": "igwn.gwalert",
"uuid": "321fa465-7475-46d3-b11b-b60cc9aedd73",
"title": "S230808i - RETRACTION",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S230808i/view/"
},
"event": null,
"alert_type": "RETRACTION",
"sequence_num": 3,
"time_created": "2023-08-08T08:05:27Z",
"superevent_id": "S230808i",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-08T08:05:28.771598Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-08T08:05:28.771619Z",
"modified": "2023-08-08T08:05:28.779488Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1920,
"topic": "gcn.circular",
"uuid": "d26a51c8-782d-4633-8aab-a578fce678e9",
"title": "LIGO/Virgo/KAGRA S230808i: retraction of a GW unmodeled transient candidate",
"submitter": "Hop gcn.circular",
"authors": "Shivaraj Kandhasamy at Inter-University Centre for Astronomy and Astrophysics (LVK collaboration) <shivaraj@iucaa.in>",
"data": {
"date": "23/08/08 08:05:45 GMT",
"from": "Shivaraj Kandhasamy at Inter-University Centre for Astronomy and Astrophysics (LVK collaboration) <shivaraj@iucaa.in>",
"title": "GCN CIRCULAR",
"number": "34367",
"subject": "LIGO/Virgo/KAGRA S230808i: retraction of a GW unmodeled transient candidate"
},
"message_text": "The LIGO Scientific Collaboration, the Virgo Collaboration, and the\nKAGRA Collaboration report:\n\nThe trigger S230808i is no longer considered to be a candidate of interest: pipeline experts consider this trigger is of low significance.\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkxNDgxOTUwLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.Kda-JuDOITzC5LDAEf4KiJcdPKzRpiY556wGYVqpgSk\n\n",
"published": "2023-08-08T08:05:55.983616Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-08T08:05:55.983634Z",
"modified": "2023-08-08T08:05:55.990594Z",
"nonlocalizedevents": [
{
"event_id": "S230808i"
}
],
"targets": []
},
{
"id": 1921,
"topic": "gcn.circular",
"uuid": "a4e1d6fb-c239-45c9-99a2-b77dfe942e2e",
"title": "GRB 230805B : MITSuME Akeno optical upper limits",
"submitter": "Hop gcn.circular",
"authors": "Narikazu Higuchi at Tokyo Tech <higuchi@hp.phys.titech.ac.jp>",
"data": {
"date": "23/08/08 10:29:05 GMT",
"from": "Narikazu Higuchi at Tokyo Tech <higuchi@hp.phys.titech.ac.jp>",
"title": "GCN CIRCULAR",
"number": "34368",
"subject": "GRB 230805B : MITSuME Akeno optical upper limits"
},
"message_text": "N. Higuchi, I. Takahashi, M. Sasada, M. Niwano, S. Sato, S. Hayatsu, R. Hosokawa, H. Seki, H. Takei, Y. Yatsu (Tokyo Tech) and N. Kawai (Riken) report on behalf of the MITSuME collaboration:\n\nWe observed the field of GRB 230805B (Cenko et al. GCN Circular #34339) with the optical three color (g', Rc, and Ic) CCD cameras attached to the MITSuME 50 cm telescope Akeno.\n\nThe observation started at 2023-8-05 11:25:51 UT (120 seconds after the Swift/BAT trigger). We stacked the images with good conditions. We did not detect any uncatalogued sources within the error region (Osborne et al. GCN Circular #34353). We obtained the 5-sigma limits of the stacked images as follows.\n\nT0+[sec] | MID-UT | T-EXP[sec] | 5-sigma limits\n------------------------------------------------------------------------------------------------\n1117 | 2023-08-05 11:42:28 | 240.0 | g'>18.5, Rc>18.5, Ic>17.9\n4357 | 2023-08-05 12:36:28 | 840.0 | g'>18.9, Rc>19.0, Ic>18.5\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 g, r and i bands were converted to our g', 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.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkxNDkwNTUwLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.u1Ajhj7yItWxbLMyQ92xfs9uopbbJnPpa9mPToPDi_Q\n\n",
"published": "2023-08-08T10:29:17.770467Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-08T10:29:17.770486Z",
"modified": "2023-08-08T10:29:17.778334Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1922,
"topic": "gcn.circular",
"uuid": "7dd1da5d-7269-42fd-844c-5236be2881c4",
"title": "GRB 230808A: 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": "23/08/08 10:59:45 GMT",
"from": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
"title": "GCN CIRCULAR",
"number": "34369",
"subject": "GRB 230808A: Fermi GBM Final Real-time Localization"
},
"message_text": "The Fermi GBM team reports the detection of a likely LONG GRB\n\nAt 10:49:12 UT on 8 Aug 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230808A (trigger 713184557.782692 / 230808451).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 81.6, Dec = 58.5 (J2000 degrees, equivalent to J2000 05h 26m, 58d 30'), with a statistical uncertainty of 2.2 degrees.\n\nThe angle from the Fermi LAT boresight is 36.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230808451/quicklook/glg_skymap_all_bn230808451.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/bn230808451/quicklook/glg_healpix_all_bn230808451.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230808451/quicklook/glg_lc_medres34_bn230808451.gif\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkxNDkyMzkxLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.Ihyk9nShfpCC8H-Xayv0tAEgA2Z521SSSI4yilLVY0M\n\n",
"published": "2023-08-08T10:59:57.085847Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-08T10:59:57.085872Z",
"modified": "2023-08-08T10:59:57.093906Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1923,
"topic": "gcn.circular",
"uuid": "ef07df1b-592d-4034-94dc-f7d48f542e69",
"title": "ZTF23aaoohpy/AT2023lcr: JWST observations consistent with the presence of a supernova",
"submitter": "Hop gcn.circular",
"authors": "Antonio Martin-Carrillo at UCD,Space Science Group <antonio.martin-carrillo@ucd.ie>",
"data": {
"date": "23/08/08 15:51:10 GMT",
"from": "Antonio Martin-Carrillo at UCD,Space Science Group <antonio.martin-carrillo@ucd.ie>",
"title": "GCN CIRCULAR",
"number": "34370",
"subject": "ZTF23aaoohpy/AT2023lcr: JWST observations consistent with the presence of a supernova"
},
"message_text": "A. Martin-Carrillo (UCD), B. Schneider (MIT), T. Laskar (Utah), B. P. Gompertz (U. Birmingham), D. B. Malesani (Radboud and DAWN/NBI), A. de Ugarte Postigo (OCA/CNRS), A. J. Levan (Radboud), G. Finneran (UCD), J.F. Agui Fernandez (IAA-CSIC), C.C. Thoene (ASU-CAS), V. D'Elia (ASI-SSDC and INAF-OAR) and L. Izzo (INAF-OACN and DARK/NBI) report on behalf of a larger collaboration:\n\nWe obtained photometric observations of the orphan GRB afterglow ZTF23aaoohpy/AT2023lcr (Andreoni et al., GCN 3402; Swain et al., GCN 34022; Kumar et al., GCN 34025; Adami et al., GCN 34030; Perley et al., GCN 34031; Jiang et al., GCN 34040; Chen et al., GCN 34043) with the James Webb Space Telescope on 7 August 2023 (DDT program 4554, PI Martin-Carrillo). This was about 50.6 days after the likely explosion epoch (Gompertz et al., GCN 34023). Observations were obtained with the NIRCam instrument in the F115W, F150W, F277W, and F356W filters.\n\nAt the location of the optical/NIR transient, we detect a point-like source in all four bands, with F115W(AB) ~ 25.48 +/- 0.20. A fainter, extended source is observed about 0.5\" to the S-W, which could be the host galaxy of AT 2023lcr.\n\nThese observations are in excess of the expected power-law decay of the GRB afterglow and are consistent with a supernova component.\n\nFurther analysis and observations are ongoing.\n\nWe thank the staff of STScI for their work to get these observations rapidly scheduled, in particular Alison Vick, Tony Keyes, Mario Gennaro and Armin Rest.\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkxNTA5ODc1LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.Y3aAqYo7QARJbZNcBV2Yg79QMnHV5o8b1A6hq2mzk5A\n\n",
"published": "2023-08-08T15:51:24.541293Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-08T15:51:24.541310Z",
"modified": "2023-08-08T15:51:24.549114Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1924,
"topic": "gcn.circular",
"uuid": "f23a5520-8ca7-46ed-ac2d-b944d85b75e9",
"title": "Fermi trigger No 713205976: Global MASTER-Net observations report",
"submitter": "Hop gcn.circular",
"authors": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"data": {
"date": "23/08/08 17:15:48 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"title": "GCN CIRCULAR",
"number": "34371",
"subject": "Fermi trigger No 713205976: Global MASTER-Net observations report"
},
"message_text": "V. Lipunov, V.Kornilov, E.Gorbovskoy, K.Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, D. Vlasenko,\nG.Antipov, D.Zimnukhov, V.Senik, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D.Cheryasov, Ya.Kechin\n(Lomonosov Moscow State University, SAI, Physics Department),\n\nR. Podesta, C.Lopez, F. Podesta, C.Francile\n(Observatorio Astronomico Felix Aguilar OAFA),\n\nR. Rebolo, M. Serra\n(The Instituto de Astrofisica de Canarias),\n\nD. Buckley\n(South African Astronomical Observatory),\n\nO.A. Gres, N.M. Budnev\n(Irkutsk State University, API),\n\nL.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez\n(INAOE, Guillermo Haro Astrophysics Observatory),\n\nA. Tlatov, D. Dormidontov\n(Kislovodsk Solar Station of the Pulkovo Observatory),\n\nA. Gabovich, V.Yurkov\n(Blagoveschensk Educational State University)\n\n\nMASTER-SAAO robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in South Africa (South African Astronomical Observatory) started inspect of the Fermi GRB230808.70 (trigger No 713205976,13h 38m 48.00s , -22d 12m 36.0s, R=2.42) errorbox 557 sec after notice time and 589 sec after trigger time at 2023-08-08 16:56:01 UT, with upper limit up to 18.6 mag. Observations started at twilight. The observations began at zenith distance = 25 deg. The sun altitude is -10.9 deg.\n\nThe galactic latitude b = 39 deg., longitude l = 318 deg.\n\n\nReal time updated cover map and OT discovered available here:\nhttps://master.sai.msu.ru/site/master2/observ.php?id\"51814\n\nWe obtain a following upper limits.\n\nTmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n 620 | 2023-08-08 16:56:01 | MASTER-SAAO | (13h 38m 29.74s , -22d 07m 36.0s) | C | 60 | 17.3 |\n 680 | 2023-08-08 16:56:01 | MASTER-SAAO | (13h 38m 29.73s , -22d 07m 35.9s) | C | 180 | 18.1 | Coadd\n 620 | 2023-08-08 16:56:01 | MASTER-SAAO | (13h 37m 33.96s , -22d 09m 24.9s) | C | 60 | 17.8 |\n 680 | 2023-08-08 16:56:01 | MASTER-SAAO | (13h 37m 33.96s , -22d 09m 24.9s) | C | 180 | 18.6 | Coadd\n 711 | 2023-08-08 16:57:32 | MASTER-SAAO | (13h 38m 35.47s , -22d 07m 06.0s) | C | 60 | 17.4 |\n 711 | 2023-08-08 16:57:32 | MASTER-SAAO | (13h 37m 39.62s , -22d 08m 54.2s) | C | 60 | 17.9 |\n 802 | 2023-08-08 16:59:03 | MASTER-SAAO | (13h 38m 32.66s , -22d 05m 36.2s) | C | 60 | 17.5 |\n 802 | 2023-08-08 16:59:03 | MASTER-SAAO | (13h 37m 36.76s , -22d 07m 24.4s) | C | 60 | 18.1 |\n 881 | 2023-08-08 17:00:22 | MASTER-SAAO | (13h 38m 32.64s , -22d 07m 26.9s) | C | 60 | 17.8 |\n 881 | 2023-08-08 17:00:22 | MASTER-SAAO | (13h 37m 36.69s , -22d 09m 14.8s) | C | 60 | 18.2 |\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.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkxNTE0OTU0LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.nLH51Qhk4gpsoNN08ApNQin76ReTId-TMaCCYfYMx0Q\n\n",
"published": "2023-08-08T17:16:00.995570Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-08T17:16:00.995588Z",
"modified": "2023-08-08T17:16:01.005384Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1925,
"topic": "gcn.circular",
"uuid": "b707c027-dee7-4038-b44c-478caf13e4af",
"title": "The Fermi GBM Trigger 713134237 / 230807868 is not associated with LIGO/Virgo/KAGRA S230807f.",
"submitter": "Hop gcn.circular",
"authors": "Sarah Dalessi at UAH <sd0104@uah.edu>",
"data": {
"date": "23/08/08 18:26:24 GMT",
"from": "Sarah Dalessi at UAH <sd0104@uah.edu>",
"title": "GCN CIRCULAR",
"number": "34372",
"subject": "The Fermi GBM Trigger 713134237 / 230807868 is not associated with LIGO/Virgo/KAGRA S230807f."
},
"message_text": "S. Dalessi (UAH) reports on behalf of the Fermi-GBM Team:\n\nAt 20:50:32.62 on 07 August 2023, the Fermi Gamma-ray Burst Monitor triggered onboard to the event labeled as 713134237 / 230807868 this trigger occurred 15s before the LVK Event S230807f (GCN 34360).\n\nThe trigger is likely due to a solar flare and therefore is not associated to S230807f.\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkxNTE5MTkwLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.sxBQ2RYDTRPTJHjm4O07QmufhabpGpDqyy7ospIzRjM\n\n",
"published": "2023-08-08T18:26:35.071762Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-08T18:26:35.071833Z",
"modified": "2023-08-08T18:26:35.081633Z",
"nonlocalizedevents": [
{
"event_id": "S230807f"
}
],
"targets": []
},
{
"id": 1926,
"topic": "gcn.circular",
"uuid": "29fbaacc-465a-4514-bb32-10957f3f6c97",
"title": "GRB 230808B: 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": "23/08/08 18:50:46 GMT",
"from": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
"title": "GCN CIRCULAR",
"number": "34373",
"subject": "GRB 230808B: Fermi GBM Final Real-time Localization"
},
"message_text": "The Fermi GBM team reports the detection of a likely LONG GRB\n\nAt 16:46:11 UT on 8 Aug 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230808B (trigger 713205976.382378 / 230808699).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 204.7, Dec = -22.2 (J2000 degrees, equivalent to J2000 13h 38m, -22d 11'), with a statistical uncertainty of 2.4 degrees.\n\nThe angle from the Fermi LAT boresight is 48.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230808699/quicklook/glg_skymap_all_bn230808699.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/bn230808699/quicklook/glg_healpix_all_bn230808699.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230808699/quicklook/glg_lc_medres34_bn230808699.gif\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkxNTIwNjUxLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.rKolTEj_DndD9Lxo8BEYPkm15UCpIfI3T1_xVG3WlmE\n\n",
"published": "2023-08-08T18:50:57.276694Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-08T18:50:57.276714Z",
"modified": "2023-08-08T18:50:57.284138Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1927,
"topic": "gcn.circular",
"uuid": "78cf4e4a-02a2-4975-8775-121e3637390f",
"title": "Fermi trigger No 713136868: Global MASTER-Net observations report",
"submitter": "Hop gcn.circular",
"authors": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"data": {
"date": "23/08/08 19:31:18 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"title": "GCN CIRCULAR",
"number": "34374",
"subject": "Fermi trigger No 713136868: 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 GRB230807.90 (trigger No 713136868,11h 30m 19.92s , +20d 55m 58.8s, R4.98) errorbox 804 sec after notice time and 835 sec after trigger time at 2023-08-07 21:48:19 UT, with upper limit up to 17.8 mag. The observations began at zenith distance = 76 deg. The sun altitude is -29.6 deg.\n\nMASTER-OAFA robotic telescope located in Argentina (OAFA observatory of San Juan National University) started inspect of the Fermi GRB230807.90 errorbox 4784 sec after notice time and 4815 sec after trigger time at 2023-08-07 22:54:39 UT, with upper limit up to 16.6 mag. Observations started at twilight. The observations began at zenith distance = 69 deg. The sun altitude is -11.3 deg.\n\nThe galactic latitude b = 71 deg., longitude l = 229 deg.\n\n\nReal time updated cover map and OT discovered available here:\nhttps://master.sai.msu.ru/site/master2/observ.php?id\"51406\n\nWe obtain a following upper limits.\n\nTmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n 926 | 2023-08-07 21:48:19 | MASTER-Tavrida | (13h 04m 15.18s , +46d 38m 55.0s) | C | 180 | 17.8 |\n 4905 | 2023-08-07 22:54:39 | MASTER-OAFA | (14h 02m 46.57s , +35d 27m 44.2s) | C | 180 | 16.3 |\n 5127 | 2023-08-07 22:58:20 | MASTER-OAFA | (13h 53m 01.26s , +35d 27m 54.2s) | C | 180 | 15.1 |\n 5349 | 2023-08-07 23:02:02 | MASTER-OAFA | (12h 35m 45.79s , +03d 10m 07.7s) | C | 180 | 16.6 |\n 7760 | 2023-08-07 23:42:13 | MASTER-OAFA | (12h 12m 55.17s , -02d 26m 15.0s) | C | 180 | 13.0 |\n 8605 | 2023-08-07 23:56:19 | MASTER-OAFA | (12h 27m 24.53s , -00d 31m 40.8s) | C | 180 | 13.0 |\n 8818 | 2023-08-07 23:59:51 | MASTER-OAFA | (12h 06m 17.94s , -04d 20m 47.4s) | C | 180 | 12.9 |\n 9030 | 2023-08-08 00:03:23 | MASTER-OAFA | (12h 14m 25.83s , -04d 20m 33.3s) | C | 180 | 13.2 |\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.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkxNTIzMDg0LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.YH9ew3qOyKq8xWk-l5t_0tkemrYpxZ_El8XjtxrmIz8\n\n",
"published": "2023-08-08T19:31:29.718314Z",
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{
"id": 1928,
"topic": "gcn.circular",
"uuid": "24015af9-8b8b-4102-8090-e12b0050cb26",
"title": "GRB 230808A: Swift/BAT-GUANO detection of a burst",
"submitter": "Hop gcn.circular",
"authors": "Jimmy DeLaunay at University of Alabama <delauj2@gmail.com>",
"data": {
"date": "23/08/08 21:34:24 GMT",
"from": "Jimmy DeLaunay at University of Alabama <delauj2@gmail.com>",
"title": "GCN CIRCULAR",
"number": "34375",
"subject": "GRB 230808A: 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 230808A onboard (T0: 2023-08-08T10:49:12.78 UTC, Fermi GBM Trig 713184557, GCN 34369).\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 9.6 in a 16.384 s analysis time bin, starting at T0 + 16.384 s.\n\nNITRATES results, independently, are ambiguous with respect to whether this burst originates from in or outside the BAT coded FOV, with a DeltaLLHOut of 12.1.\nThe Fermi GBM localization (GCN 34369) 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.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkxNTMwNDcwLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.FcWcXpJKgoZZT4OI_BViJap33Ncu2Lef5qeeTEJ2bos\n\n",
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"title": "S230809fx - PRELIMINARY",
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"title": "S230809fx - PRELIMINARY",
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{
"id": 1945,
"topic": "gcn.circular",
"uuid": "355bb3db-c86f-4e7a-9a61-77b90124adb8",
"title": "GRB 230805B: AstroSat CZTI detection",
"submitter": "Hop gcn.circular",
"authors": "Gaurav Waratkar at IIT Bombay <gauravwaratkar@iitb.ac.in>",
"data": {
"date": "23/08/09 15:43:08 GMT",
"from": "Gaurav Waratkar at IIT Bombay <gauravwaratkar@iitb.ac.in>",
"title": "GCN CIRCULAR",
"number": "34376",
"subject": "GRB 230805B: AstroSat CZTI detection"
},
"message_text": "P. K. Navaneeth (IUCAA), G. Waratkar (IITB), A. Vibhute (IUCAA), V. Bhalerao (IITB), D. Bhattacharya (Ashoka University/IUCAA), A. R. Rao (IUCAA/TIFR), and S. Vadawale (PRL) report on behalf of the AstroSat CZTI collaboration:\n\nAnalysis of AstroSat CZTI data with the CIFT framework (Sharma et al., 2021, JApA, 42, 73) showed the detection of a long GRB 230805B which was also detected by Swift-BAT (Cenko et al., GCN Circ. 34339), and Fermi-GBM (Mangan et al., GCN Circ. 34357).\n\nThe source was detected in the 20-200 keV energy range. The light curve showed multiple peaks of emission with the strongest peak at 2023-08-05 11:23:33.50 UTC. The measured peak count rate associated with the burst is 165 (+36, -38) counts/s above the background in the combined data of three quadrants (out of four), with a total of 1304 (+507, -508) counts. The local mean background count rate was 337 (+1, -2) counts/s. Using cumulative rates, we measure a T90 of 54 (+27, -25) s.\n\nThe source was also detected in the CsI anticoincidence (Veto) detector in the 100-500 keV energy range.\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---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkxNTk1Nzk0LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.vkfaKa_YwV7o8RWkIqgR9fi0gUECY9HPww541HxjaqY\n\n",
"published": "2023-08-09T15:43:24.508897Z",
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"retracted": false,
"created": "2023-08-09T15:43:24.508913Z",
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{
"id": 1946,
"topic": "gcn.circular",
"uuid": "7ddf8fa3-da35-4c1c-a4c3-1fb738b9479a",
"title": "GRB 230805B: Iota Scorpii Observatory, La Spezia, Italy upper limit",
"submitter": "Hop gcn.circular",
"authors": "GIULIO SCARFI at IOTA SCORPII OBSERVATORY <terziaria@gmail.com>",
"data": {
"date": "23/08/09 19:55:18 GMT",
"from": "GIULIO SCARFI at IOTA SCORPII OBSERVATORY <terziaria@gmail.com>",
"title": "GCN CIRCULAR",
"number": "34377",
"subject": "GRB 230805B: Iota Scorpii Observatory, La Spezia, Italy upper limit"
},
"message_text": "Giulio Scarfì (Gruppo Astronomia Digitale - Iota Scorpii Observatory, La\nSpezia,\nItaly)\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 230805B detected by SWIFT(trigger 11:23:51 UT)\nwith the telescope GSO 16â of Iota Scorpii Observatory, La Spezia Italy\n\nMember of:\n\nUAI/SSV - Unione Astrofili Italiani/sezione stelle variabili, GRB section.\nGAD - Gruppo Astronomia Digitale.\n\nThe observations started 550 min after the GRB trigger, at the end of\ntwilight,\nwith a Ritchey Cretien D=406 mm with reducer F/D=6,15.\nWeather conditions were very good.\n\nWe co-added 6 exposures of 300 sec each.\n\n\nStart T0+     End T0+      R lim\n550 min       581 min        20\n\n\nWe did not found any optical counterpart in the error box of the XRT\ncandidate.\nPage et al. GCN 34339\n\nMagnitudes were estimated with the Gaia EDR3 cat. and\nare not corrected for galactic dust extinction. 20.0\n\nReference:\nhttps://www.parcodellestelle.com/\n\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.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkxNjEwOTI0LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.sEYJ4FSynCnGDSRJXWOH1GSkMD3I9op2zu2r9Yekf-0\n\n",
"published": "2023-08-09T19:55:31.720042Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-09T19:55:31.720067Z",
"modified": "2023-08-09T19:55:31.729201Z",
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"title": "S230810b - PRELIMINARY",
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{
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"title": "S230810r - PRELIMINARY",
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"id": 1954,
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"title": "S230810r - PRELIMINARY",
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"sequence_num": 2,
"time_created": "2023-08-10T04:38:51Z",
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"published": "2023-08-10T04:38:53.274181Z",
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"retracted": false,
"created": "2023-08-10T04:38:53.274203Z",
"modified": "2023-08-10T04:38:53.277985Z",
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{
"id": 1955,
"topic": "igwn.gwalert",
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"title": "S230810y - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"published": "2023-08-10T09:26:33.094480Z",
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{
"id": 1956,
"topic": "igwn.gwalert",
"uuid": "0b90ac0e-f058-4826-8956-db56f20b2296",
"title": "S230810y - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"sequence_num": 2,
"time_created": "2023-08-10T09:31:06Z",
"superevent_id": "S230810y",
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},
"message_text": "",
"published": "2023-08-10T09:31:07.776829Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-10T09:31:07.776850Z",
"modified": "2023-08-10T09:31:07.780496Z",
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},
{
"id": 1957,
"topic": "igwn.gwalert",
"uuid": "816cd506-4b83-403d-b493-e726c223834e",
"title": "S230810af - EARLYWARNING",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"event": {
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"time": "2023-08-10T10:01:07.574Z",
"group": "CBC",
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"sequence_num": 1,
"time_created": "2023-08-10T10:01:00Z",
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},
"message_text": "",
"published": "2023-08-10T10:01:01.888933Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-10T10:01:01.888953Z",
"modified": "2023-08-10T10:01:01.892718Z",
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{
"id": 1958,
"topic": "igwn.gwalert",
"uuid": "080610ad-1ed5-4158-a1a3-7500b7775774",
"title": "S230810af - RETRACTION",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S230810af/view/"
},
"event": null,
"alert_type": "RETRACTION",
"sequence_num": 2,
"time_created": "2023-08-10T10:38:48Z",
"superevent_id": "S230810af",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-10T10:38:48.219152Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-10T10:38:48.219171Z",
"modified": "2023-08-10T10:38:48.222536Z",
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},
{
"id": 1959,
"topic": "gcn.circular",
"uuid": "3840ffa9-78c2-4722-98b8-89011677bbaf",
"title": "LIGO/Virgo/KAGRA S230810af: Retraction of GW compact binary merger candidate",
"submitter": "Hop gcn.circular",
"authors": "Jerome Novak <jerome.novak@obspm.fr>",
"data": {
"date": "23/08/10 11:19:49 GMT",
"from": "Jerome Novak <jerome.novak@obspm.fr>",
"title": "GCN CIRCULAR",
"number": "34378",
"subject": "LIGO/Virgo/KAGRA S230810af: Retraction of GW compact binary merger candidate"
},
"message_text": "The LIGO Scientific Collaboration, the Virgo Collaboration, and the KAGRA Collaboration report:\n\nThe trigger S230810af is no longer considered to be a candidate of interest. This candidate included at least one detection prior to the merge time but no significant detection that included the merger, which indicates this candidate is likely a noise transient.\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkxNjY2MzkzLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.w5a3_hOpSJKLdGo8wnHnbgj_Gs6q5FAh-W0aFZV5_qg\n\n",
"published": "2023-08-10T11:20:05.162341Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-10T11:20:05.162359Z",
"modified": "2023-08-10T11:20:05.165924Z",
"nonlocalizedevents": [
{
"event_id": "S230810a"
}
],
"targets": []
},
{
"id": 1960,
"topic": "gcn.circular",
"uuid": "a6cf8fd0-f225-4e2d-ac74-205d5ef525e6",
"title": "GRB 230805B: Swift-BAT refined analysis",
"submitter": "Hop gcn.circular",
"authors": "Sibasish Laha at NASA-GSFC <slaha@umbc.edu>",
"data": {
"date": "23/08/10 16:51:21 GMT",
"from": "Sibasish Laha at NASA-GSFC <slaha@umbc.edu>",
"title": "GCN CIRCULAR",
"number": "34379",
"subject": "GRB 230805B: Swift-BAT refined analysis"
},
"message_text": "H. A. Krimm (NSF), S. D. Barthelmy (GSFC),\nS. Laha (GSFC/UMBC), A. Y. Lien (U Tampa),\nC. B. Markwardt (GSFC),D. M. Palmer (LANL),\nT. Parsotan (GSFC/UMBC), T. Sakamoto (AGU),\nM. Stamatikos (OSU) (i.e. the Swift-BAT team):\n\nUsing the data set from T-40 to T+200 sec from the recent telemetry\ndownlink,\nwe report further analysis of BAT GRB 230805B (trigger #1183217)\n(Cenko et al., GCN Circ. 34339). The BAT ground-calculated position is\nRA, Dec = 207.738, 31.190 deg which is\n RA(J2000) = 13h 50m 57.2s\n Dec(J2000) = +31d 11' 23.0\"\nwith an uncertainty of 2.1 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 41%.\n\nThe BAT light curve shows a complex structure with a duration of ~ 100 sec.\nT90 (15-350 keV) is 93.77 +- 18.83 sec (estimated error including\nsystematics).\n\nThe time-averaged spectrum from T-21.60 to T+103.27 sec is best fit by a\nsimple\npower-law model. The power law index of the time-averaged spectrum is\n1.36 +- 0.20. The fluence in the 15-150 keV band is 1.9 +- 0.2 x 10^-06\nerg/cm2.\nThe 1-sec peak photon flux measured from T-17.66 sec in the 15-150 keV band\nis 1.2 +- 0.3 ph/cm2/sec. All the quoted errors are at the 90% confidence\nlevel.\n\nThe results of the batgrbproduct analysis are available at\nhttp://gcn.gsfc.nasa.gov/notices_s/1183217/BA/\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkxNjg2Mjg3LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.MzI61OTNhF8ORnCnoiMD2E0W7hoVTLOzOKeAa63JGAw\n\n",
"published": "2023-08-10T16:51:36.502278Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-10T16:51:36.502314Z",
"modified": "2023-08-10T16:51:36.506970Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1961,
"topic": "igwn.gwalert",
"uuid": "e7de9423-77d7-4237-b032-9bf8ab7e7261",
"title": "S230810ak - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"area_90": 940.8481762817181,
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},
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],
"significant": false,
"skymap_hash": "49e40c1b9ffbad0e849d7f992013c926",
"classification": {
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"NSBH": 0.004763841705110445,
"Terrestrial": 0.8781954592835975
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-08-10T23:38:07Z",
"superevent_id": "S230810ak",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-10T23:38:08.458884Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-10T23:38:08.458908Z",
"modified": "2023-08-10T23:38:08.463540Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1962,
"topic": "igwn.gwalert",
"uuid": "87fdf549-45db-4e75-8ba1-cd1ae911953c",
"title": "S230810al - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230810al/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230810al/view/"
},
"event": {
"far": 2.219265301385663e-05,
"time": "2023-08-10T23:40:44.635Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1273.628106607946,
"area_90": 4611.079286790152,
"duration": null,
"pipeline": "gstlal",
"properties": {
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"HasMassGap": 0.059442968908486146,
"HasRemnant": 0.0
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"instruments": [
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],
"significant": false,
"skymap_hash": "99c40f12db254fc25f2a477b5523ed4f",
"classification": {
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"BNS": 2.1558869102858063e-13,
"NSBH": 1.5134846864629524e-11,
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"skymap_version": 0,
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},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-08-10T23:41:23Z",
"superevent_id": "S230810al",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-10T23:41:24.955275Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-10T23:41:24.955296Z",
"modified": "2023-08-10T23:41:24.958545Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1963,
"topic": "igwn.gwalert",
"uuid": "1b40f9d7-bc5f-4c10-bfcf-4547bf87bfb2",
"title": "S230810ak - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230810ak/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230810ak/view/"
},
"event": {
"far": 8.07843571237754e-06,
"time": "2023-08-10T23:37:42.558Z",
"group": "CBC",
"search": "AllSky",
"area_50": 155.2693243640659,
"area_90": 940.8481762817181,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.1407172685509292,
"HasMassGap": 0.3031952653984351,
"HasRemnant": 0.0
},
"instruments": [
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"L1"
],
"significant": false,
"skymap_hash": "49e40c1b9ffbad0e849d7f992013c926",
"classification": {
"BBH": 0.11704069901129202,
"BNS": 0.0,
"NSBH": 0.004763841705110445,
"Terrestrial": 0.8781954592835975
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-10T23:42:41Z",
"superevent_id": "S230810ak",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-10T23:42:42.295704Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-10T23:42:42.295733Z",
"modified": "2023-08-10T23:42:42.299417Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1964,
"topic": "igwn.gwalert",
"uuid": "865cb392-ce8b-4e2b-b681-be0f39d90adb",
"title": "S230810al - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230810al/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230810al/view/"
},
"event": {
"far": 2.219265301385663e-05,
"time": "2023-08-10T23:40:44.635Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1273.628106607946,
"area_90": 4611.079286790152,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.059442968908486146,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "99c40f12db254fc25f2a477b5523ed4f",
"classification": {
"BBH": 0.07048701394611291,
"BNS": 2.1558869102858063e-13,
"NSBH": 1.5134846864629524e-11,
"Terrestrial": 0.9295129860385366
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-10T23:45:58Z",
"superevent_id": "S230810al",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-10T23:45:59.757448Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-10T23:45:59.757469Z",
"modified": "2023-08-10T23:45:59.760487Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1965,
"topic": "igwn.gwalert",
"uuid": "d85112bb-7e96-45b4-8b97-bcd35f34aa6f",
"title": "S230811f - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230811f/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230811f/view/"
},
"event": {
"far": 1.99329e-05,
"time": "2023-08-11T01:06:03.644Z",
"group": "Burst",
"search": "AllSky",
"area_50": 60.429142455204016,
"area_90": 179.60884007518976,
"duration": 0.034715,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "84efed7e05d7ca567b466728683a5613",
"classification": {},
"skymap_version": 0,
"central_frequency": 326.251465
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-08-11T01:07:09Z",
"superevent_id": "S230811f",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-11T01:07:09.604309Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-11T01:07:09.604327Z",
"modified": "2023-08-11T01:07:09.608870Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1966,
"topic": "igwn.gwalert",
"uuid": "4344173b-f72e-46d7-9870-da87beb33e40",
"title": "S230811f - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230811f/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230811f/view/"
},
"event": {
"far": 1.99329e-05,
"time": "2023-08-11T01:06:03.644Z",
"group": "Burst",
"search": "AllSky",
"area_50": 60.429142455204016,
"area_90": 179.60884007518976,
"duration": 0.034715,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "84efed7e05d7ca567b466728683a5613",
"classification": {},
"skymap_version": 0,
"central_frequency": 326.251465
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-11T01:11:42Z",
"superevent_id": "S230811f",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-11T01:11:43.626906Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-11T01:11:43.626925Z",
"modified": "2023-08-11T01:11:43.630808Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1967,
"topic": "igwn.gwalert",
"uuid": "a544f771-1361-4d0b-b55c-010b5ca18280",
"title": "S230811n - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230811n/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230811n/view/"
},
"event": {
"far": 4.62726732977046e-21,
"time": "2023-08-11T03:21:16.289Z",
"group": "CBC",
"search": "AllSky",
"area_50": 258.18770760808525,
"area_90": 1091.081738774517,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": true,
"skymap_hash": "69eca050d8d5ff19a1cd32d26e18d40b",
"classification": {
"BBH": 0.9999999999999832,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 1.6764367671839864e-14
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-08-11T03:21:47Z",
"superevent_id": "S230811n",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-11T03:21:48.531023Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-11T03:21:48.531055Z",
"modified": "2023-08-11T03:21:48.536652Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1968,
"topic": "igwn.gwalert",
"uuid": "0d44f0ce-c95b-4b3e-a703-028d60158148",
"title": "S230811n - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230811n/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S230811n/view/"
},
"event": {
"far": 3.167545842243851e-10,
"time": "2023-08-11T03:21:16.293Z",
"group": "CBC",
"search": "AllSky",
"area_50": 249.1653009220652,
"area_90": 955.1161682503081,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": true,
"skymap_hash": "d31cd9b28e24eb6ead4b8e5b6c028c23",
"classification": {
"BBH": 0.9999781900061152,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 2.1809993884791545e-05
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-11T03:26:27Z",
"superevent_id": "S230811n",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-11T03:26:28.410625Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-11T03:26:28.410646Z",
"modified": "2023-08-11T03:26:28.414326Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1969,
"topic": "igwn.gwalert",
"uuid": "ff3bb156-7e16-4153-9212-e2aa73e1353e",
"title": "S230811n - INITIAL",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230811n/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S230811n/view/"
},
"event": {
"far": 3.167545842243851e-10,
"time": "2023-08-11T03:21:16.293Z",
"group": "CBC",
"search": "AllSky",
"area_50": 249.1653009220652,
"area_90": 955.1161682503081,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": true,
"skymap_hash": "d31cd9b28e24eb6ead4b8e5b6c028c23",
"classification": {
"BBH": 0.9999781900061152,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 2.1809993884791545e-05
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "INITIAL",
"sequence_num": 3,
"time_created": "2023-08-11T03:51:03Z",
"superevent_id": "S230811n",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-11T03:51:04.666510Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-11T03:51:04.666530Z",
"modified": "2023-08-11T03:51:04.669634Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1970,
"topic": "gcn.circular",
"uuid": "4ad85de7-68bd-4ae7-aa0e-a19475865fb9",
"title": "LIGO/Virgo/KAGRA S230811n: Identification of a GW compact binary merger candidate",
"submitter": "Hop gcn.circular",
"authors": "Shivaraj Kandhasamy at Inter-University Centre for Astronomy and Astrophysics (LVK collaboration) <shivaraj@iucaa.in>",
"data": {
"date": "23/08/11 04:07:27 GMT",
"from": "Shivaraj Kandhasamy at Inter-University Centre for Astronomy and Astrophysics (LVK collaboration) <shivaraj@iucaa.in>",
"title": "GCN CIRCULAR",
"number": "34380",
"subject": "LIGO/Virgo/KAGRA S230811n: 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 S230811n during\nreal-time processing of data from LIGO Hanford Observatory (H1) and\nLIGO Livingston Observatory (L1) at 2023-08-11 03:21:16.293 UTC (GPS\ntime: 1375759294.293). The candidate was found by the CWB [1], GstLAL\n[2], MBTA [3], PyCBC Live [4], and SPIIR [5] analysis pipelines.\n\nS230811n is an event of interest because its false alarm rate, as\nestimated by the online analysis, is 3.2e-10 Hz, or about one in 1e2\nyears. The event's properties can be found at this URL:\n\nhttps://gracedb.ligo.org/superevents/S230811n\n\nThe classification of the GW signal, in order of descending\nprobability, is BBH (>99%), Terrestrial (<1%), BNS (<1%), or NSBH\n(<1%).\n\nAssuming the candidate is astrophysical in origin, the probability\nthat the lighter compact object is consistent with a neutron star mass\n(HasNS) is <1%. [6] Using the masses and spins inferred from the\nsignal, the probability of matter outside the final compact object\n(HasRemnant) is <1%. [6] Both HasNS and HasRemnant consider the\nsupport of several neutron star equations of state. The probability\nthat either of the binary components lies between 3 and 5 solar masses\n(HasMassgap) is <1%.\n\nTwo sky maps are available at this time and can be retrieved from the\nGraceDB event page:\n * bayestar.multiorder.fits,1, an initial localization generated by\nBAYESTAR [7], distributed via GCN notice about 30 seconds after the\ncandidate event time.\n * bayestar.multiorder.fits,2, an initial localization generated by\nBAYESTAR [7], distributed via GCN notice about 5 minutes after the\ncandidate event time.\n\nThe preferred sky map at this time is bayestar.multiorder.fits,2. For\nthe bayestar.multiorder.fits,2 sky map, the 90% credible region is 955\ndeg2. Marginalized over the whole sky, the a posteriori luminosity\ndistance estimate is 2530 +/- 777 Mpc (a posteriori mean +/- standard\ndeviation).\n\nFor further information about analysis methodology and the contents of\nthis alert, refer to the LIGO/Virgo/KAGRA Public Alerts User Guide\nhttps://emfollow.docs.ligo.org/userguide/.\n\n [1] Klimenko et al. PRD 93, 042004 (2016)\n [2] Tsukada et al. arXiv:2305.06286 (2023) and Ewing et al.\narXiv:2305.05625 (2023)\n [3] Aubin et al. CQG 38, 095004 (2021)\n [4] Dal Canton et al. ApJ 923, 254 (2021)\n [5] Chu et al. PRD 105, 024023 (2022)\n [6] Chatterjee et al. ApJ 896, 54 (2020)\n [7] Singer & Price PRD 93, 024013 (2016)\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkxNzI2ODUzLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.T_rQmHN9NM3OqyNannpJfdR7H2_dapVcSQ-Ks5dbaoo\n\n",
"published": "2023-08-11T04:07:41.425935Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-11T04:07:41.425952Z",
"modified": "2023-08-11T04:07:41.430394Z",
"nonlocalizedevents": [
{
"event_id": "S230811n"
}
],
"targets": []
},
{
"id": 1971,
"topic": "hermes.message",
"uuid": "e0122e68-1ed1-48fa-af30-f649e0a12cbb",
"title": "INTEGRAL follow-up of S230808ae",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230808ae at 2023-08-08T22:43:15.000\n\n\nSPI-ACS excesses:\nat T0+43.45 FAP = 0.057\nat T0+-277.1 FAP = 0.12\n\n\n\n\nnext break in data in 37 hr: 2023-08-10T11:43:58, for 9.3 hr",
"published": "2023-08-11T07:56:50.478170Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-08-11T07:56:50.478195Z",
"modified": "2023-08-11T07:56:50.486145Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1972,
"topic": "hermes.message",
"uuid": "55d0a9e2-310f-4656-ae2d-ffc93dc684a3",
"title": "INTEGRAL follow-up of S230809aj",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230809aj at 2023-08-09T04:54:07.000\n\n\nSPI-ACS excesses:\nat T0+-12.09 FAP = 0.283\nat T0+7.84 FAP = 0.402\nat T0+-121.49 FAP = 0.793\nat T0+17.96 FAP = 0.941\n\n\n\n\nnext break in data in 31 hr: 2023-08-10T11:43:58, for 9.3 hr",
"published": "2023-08-11T08:28:34.326590Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-08-11T08:28:34.326607Z",
"modified": "2023-08-11T08:28:34.331642Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1973,
"topic": "hermes.message",
"uuid": "231312db-5808-4c7e-836d-27eec5dfc7d0",
"title": "INTEGRAL follow-up of S230809z",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230809z at 2023-08-09T04:49:00.000\n\n\nSPI-ACS excesses:\nat T0+2.04 FAP = 0.022\nat T0+-5.31 FAP = 0.033\nat T0+-48.19 FAP = 0.062\nat T0+-24.59 FAP = 0.185\nat T0+-45.81 FAP = 0.5\nat T0+-12.64 FAP = 0.533\nat T0+-97.94 FAP = 0.57\nat T0+-19.96 FAP = 0.844\n\n\n\n\nnext break in data in 31 hr: 2023-08-10T11:43:58, for 9.3 hr",
"published": "2023-08-11T08:45:12.678542Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-08-11T08:45:12.678583Z",
"modified": "2023-08-11T08:45:12.690134Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1974,
"topic": "hermes.message",
"uuid": "47a58df4-c33a-4214-8fe8-105478818b67",
"title": "INTEGRAL follow-up of S230810y",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230810y at 2023-08-10T09:26:09.000\n\n\nSPI-ACS excesses:\nat T0+0.05 FAP = 0.002\nat T0+15.92 FAP = 0.146\nat T0+6.1 FAP = 0.253\nat T0+-9.98 FAP = 0.382\n\n\n\n\nnext break in data in 2.3 hr: 2023-08-10T11:43:58, for 9.3 hr",
"published": "2023-08-11T09:32:35.536930Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-08-11T09:32:35.536954Z",
"modified": "2023-08-11T09:32:35.543178Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1975,
"topic": "hermes.message",
"uuid": "3164cf8e-aff3-496c-8c02-8dcd78482869",
"title": "INTEGRAL follow-up of S230809g",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230809g at 2023-08-09T01:14:47.000\n\n\nSPI-ACS excesses:\nat T0+-52.4 FAP = 0.658\nat T0+13.43 FAP = 0.897\n\n\n\n\nnext break in data in 34 hr: 2023-08-10T11:43:58, for 9.3 hr",
"published": "2023-08-11T10:27:10.908235Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-08-11T10:27:10.908260Z",
"modified": "2023-08-11T10:27:10.911863Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1976,
"topic": "hermes.message",
"uuid": "f8eaf668-5822-4f24-9556-bebf687fb97a",
"title": "INTEGRAL follow-up of S230809j",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230809j at 2023-08-09T02:42:12.000\n\n\nSPI-ACS excesses:\nat T0+-1.84 FAP = 0.087\nat T0+54.33 FAP = 0.223\nat T0+5.31 FAP = 0.392\n\n\n\n\nnext break in data in 33 hr: 2023-08-10T11:43:58, for 9.3 hr",
"published": "2023-08-11T13:00:00.331471Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-08-11T13:00:00.331494Z",
"modified": "2023-08-11T13:00:00.338597Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1977,
"topic": "hermes.message",
"uuid": "a34e0ef5-b984-4c26-9d48-227f1ce36917",
"title": "INTEGRAL follow-up of S230810g",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230810g at 2023-08-10T02:39:47.000\n\n\nSPI-ACS excesses:\nat T0+0.04 FAP = 0.001\nat T0+0.31 FAP = 0.009\nat T0+1.36 FAP = 0.021\nat T0+39.71 FAP = 0.089\nat T0+-2.11 FAP = 0.093\nat T0+-58.09 FAP = 0.154\nat T0+49.76 FAP = 0.226\nat T0+78.44 FAP = 0.493\nat T0+4.96 FAP = 0.628\nat T0+-33.96 FAP = 0.783\nat T0+8.81 FAP = 0.879\n\n\n\n\nnext break in data in 9.1 hr: 2023-08-10T11:43:58, for 9.3 hr",
"published": "2023-08-11T13:11:58.495790Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-08-11T13:11:58.495811Z",
"modified": "2023-08-11T13:11:58.501967Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1978,
"topic": "hermes.message",
"uuid": "57ebbe68-0d7a-4941-b793-1e4ba4169ed0",
"title": "INTEGRAL follow-up of S230809fx",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230809fx at 2023-08-09T08:28:33.000\n\n\nSPI-ACS excesses:\nat T0+5.65 FAP = 0.069\nat T0+-3.2 FAP = 0.124\nat T0+-142.78 FAP = 0.56\nat T0+-43.45 FAP = 0.79\n\n\n\n\nnext break in data in 27 hr: 2023-08-10T11:43:58, for 9.3 hr",
"published": "2023-08-11T14:13:47.649614Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-08-11T14:13:47.649648Z",
"modified": "2023-08-11T14:13:47.656880Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1979,
"topic": "hermes.message",
"uuid": "5b39b008-3d5a-47de-9c4f-a2756db4b4a8",
"title": "INTEGRAL follow-up of S230810d",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230810d at 2023-08-10T02:16:57.000\n\n\nSPI-ACS excesses:\nat T0+0.03 FAP = 0.008\nat T0+2.68 FAP = 0.064\nat T0+31.61 FAP = 0.257\nat T0+-1.57 FAP = 0.282\nat T0+-54.97 FAP = 0.376\nat T0+12.33 FAP = 0.483\nat T0+13.76 FAP = 0.543\nat T0+-19.59 FAP = 0.673\nat T0+-3.59 FAP = 0.696\nat T0+-124.04 FAP = 0.743\nat T0+-154.29 FAP = 0.823\nat T0+-42.02 FAP = 0.911\nat T0+-129.82 FAP = 0.938\n\n\n\n\nnext break in data in 9.5 hr: 2023-08-10T11:43:58, for 9.3 hr",
"published": "2023-08-11T14:46:07.044717Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-08-11T14:46:07.044744Z",
"modified": "2023-08-11T14:46:07.052449Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1980,
"topic": "gcn.circular",
"uuid": "d3a5fca6-3154-4a8f-b272-6012bfc1ad91",
"title": "GRB 230808A: Fermi GBM Detection",
"submitter": "Hop gcn.circular",
"authors": "Ava Myers at NASA GSFC <ava.myers@nasa.gov>",
"data": {
"date": "23/08/11 15:01:08 GMT",
"from": "Ava Myers at NASA GSFC <ava.myers@nasa.gov>",
"title": "GCN CIRCULAR",
"number": "34381",
"subject": "GRB 230808A: Fermi GBM Detection"
},
"message_text": "A. Myers (NPP/GSFC) and S. Lesage (UAH) report on behalf of\nthe Fermi Gamma-ray Burst Monitor Team:\n\nâAt 10:49:12.78 UT on 08 August 2023, the Fermi Gamma-ray Burst Monitor (GBM)\ntriggered and located GRB 230808A (trigger 713184557/230808451, which was also detected by Swift/BAT-GUANO (B. Person et al. 2020; GCN 34375 reported by James Delaunay). The Fermi GBM Final Real-time Localization was reported at GCN 34369.\n\nThe angle from the Fermi LAT boresight is 36 degrees.\n\nThe GBM light curve consists of a multiple-emission episode with a duration (T90) of about 62 s (50-300 keV). The time-averaged spectrum from T0-4.6 to T0+69.1 s is best fit by a power law function with an exponential high-energy cutoff. The power law index is -1.07 +/- 0.06 and the cutoff energy, parameterized as Epeak, is 430 +/- 60 keV.\n\nThe event fluence (10-1000 keV) in this time interval is (1.31 +/- 0.06)E-05 erg/cm^2. The 1-sec peak photon flux measured starting from T0+18 s in the 10-1000 keV band is 6.4 +/- 0.3 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog: https://heasarc.gsfc.nasa.gov/W3Browse/fermi/fermigbrst.html\n\nFor Fermi GBM data and info, please visit the official Fermi GBM Support Page: https://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.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkxNzY2MDc0LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.7xsW01sKvVz3bbDK5RmytYuOdb631snX__7qhkBJZ0Q\n\n",
"published": "2023-08-11T15:01:24.723029Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-11T15:01:24.723046Z",
"modified": "2023-08-11T15:01:24.728834Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1981,
"topic": "hermes.message",
"uuid": "e0fd89ba-8cd4-476a-8b52-379e104ec66a",
"title": "INTEGRAL follow-up of S230809b",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230809b at 2023-08-09T00:18:31.000\n\n\nSPI-ACS excesses:\n\n\n\n\nnext break in data in 35 hr: 2023-08-10T11:43:58, for 9.3 hr",
"published": "2023-08-11T16:01:02.147467Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-08-11T16:01:02.147491Z",
"modified": "2023-08-11T16:01:02.157505Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1982,
"topic": "hermes.message",
"uuid": "c3530da1-e8ea-4250-9e9c-b7a0bdbc2144",
"title": "INTEGRAL follow-up of S230810b",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230810b at 2023-08-10T01:25:17.000\n\n\nSPI-ACS excesses:\nat T0+7.16 FAP = 0.019\nat T0+-19.49 FAP = 0.076\nat T0+183.61 FAP = 0.53\nat T0+-6.32 FAP = 0.682\nat T0+30.86 FAP = 0.84\n\n\n\n\nnext break in data in 10 hr: 2023-08-10T11:43:58, for 9.3 hr",
"published": "2023-08-11T19:05:31.228218Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-08-11T19:05:31.228235Z",
"modified": "2023-08-11T19:05:31.236109Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1983,
"topic": "hermes.message",
"uuid": "c8c08200-b358-4a6f-a059-6f4d844c23ce",
"title": "INTEGRAL follow-up of S230808af",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230808af at 2023-08-08T22:51:55.000\n\n\nSPI-ACS excesses:\nat T0+-71.3 FAP = 0.805\nat T0+-52.98 FAP = 0.883\n\n\n\n\nnext break in data in 37 hr: 2023-08-10T11:43:58, for 9.3 hr",
"published": "2023-08-11T19:40:09.583032Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-08-11T19:40:09.583050Z",
"modified": "2023-08-11T19:40:09.590661Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1984,
"topic": "igwn.gwalert",
"uuid": "4e0b7fb2-ae56-4310-a7ec-4e421b2d6ac8",
"title": "S230811y - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230811y/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230811y/view/"
},
"event": {
"far": 1.93216e-05,
"time": "2023-08-11T22:46:20.856Z",
"group": "Burst",
"search": "AllSky",
"area_50": 67.14349161689336,
"area_90": 235.00222065912672,
"duration": 0.021805,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "096e40ca152fe47344f1dd06e839b9c0",
"classification": {},
"skymap_version": 0,
"central_frequency": 532.851135
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-08-11T22:47:38Z",
"superevent_id": "S230811y",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-11T22:47:39.130161Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-11T22:47:39.130182Z",
"modified": "2023-08-11T22:47:39.138522Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1985,
"topic": "igwn.gwalert",
"uuid": "a7349461-8213-43cd-8c76-e402af24d81d",
"title": "S230811z - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230811z/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230811z/view/"
},
"event": {
"far": 6.40453e-06,
"time": "2023-08-11T22:47:11.157Z",
"group": "Burst",
"search": "AllSky",
"area_50": 188.8410701725126,
"area_90": 835.0971769851112,
"duration": 0.014046,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "07712df905421726da04da0bd91cb6b2",
"classification": {},
"skymap_version": 0,
"central_frequency": 318.181305
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-08-11T22:48:51Z",
"superevent_id": "S230811z",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-11T22:48:52.383762Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-11T22:48:52.383780Z",
"modified": "2023-08-11T22:48:52.389443Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1986,
"topic": "igwn.gwalert",
"uuid": "9f43246d-80b4-4921-a108-3c5452cb446d",
"title": "S230811y - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230811y/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230811y/view/"
},
"event": {
"far": 1.93216e-05,
"time": "2023-08-11T22:46:20.856Z",
"group": "Burst",
"search": "AllSky",
"area_50": 67.14349161689336,
"area_90": 235.00222065912672,
"duration": 0.021805,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "096e40ca152fe47344f1dd06e839b9c0",
"classification": {},
"skymap_version": 0,
"central_frequency": 532.851135
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-11T22:52:12Z",
"superevent_id": "S230811y",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-11T22:52:13.683009Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-11T22:52:13.683033Z",
"modified": "2023-08-11T22:52:13.688695Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1987,
"topic": "igwn.gwalert",
"uuid": "340a6783-cb71-496e-a28e-5bab96a56342",
"title": "S230811z - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230811z/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230811z/view/"
},
"event": {
"far": 6.40453e-06,
"time": "2023-08-11T22:47:11.157Z",
"group": "Burst",
"search": "AllSky",
"area_50": 188.8410701725126,
"area_90": 835.0971769851112,
"duration": 0.014046,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "07712df905421726da04da0bd91cb6b2",
"classification": {},
"skymap_version": 0,
"central_frequency": 318.181305
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-11T22:53:26Z",
"superevent_id": "S230811z",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-11T22:53:26.789330Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-11T22:53:26.789350Z",
"modified": "2023-08-11T22:53:26.795438Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1988,
"topic": "igwn.gwalert",
"uuid": "59f23b14-6451-4d5f-ae74-9131ed20aaf7",
"title": "S230812b - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230812b/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230812b/view/"
},
"event": {
"far": 4.954024140090928e-06,
"time": "2023-08-12T00:19:04.708Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1226.6276624761206,
"area_90": 5086.958783624883,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.012106583072100312,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "5565a5a936cd7771b26a60d9aab8e391",
"classification": {
"BBH": 0.3005677244606614,
"BNS": 2.4090402703653007e-15,
"NSBH": 1.7244632569778946e-13,
"Terrestrial": 0.6994322755391638
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-08-12T00:19:31Z",
"superevent_id": "S230812b",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-12T00:19:33.381924Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-12T00:19:33.381945Z",
"modified": "2023-08-12T00:19:33.387949Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1989,
"topic": "igwn.gwalert",
"uuid": "4af53f48-26c1-44d4-a8d8-026930e58c34",
"title": "S230812b - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230812b/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S230812b/view/"
},
"event": {
"far": 8.035992867917853e-06,
"time": "2023-08-12T00:19:04.707Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1159.9038176818328,
"area_90": 4985.404252554332,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.059442968908486146,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "cd27c38396d9c67d4e6efbad2b440843",
"classification": {
"BBH": 0.21569570988978715,
"BNS": 1.5782540877231794e-15,
"NSBH": 1.1301352967865005e-13,
"Terrestrial": 0.7843042901100983
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-12T00:24:07Z",
"superevent_id": "S230812b",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-12T00:24:08.982230Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-12T00:24:08.982271Z",
"modified": "2023-08-12T00:24:08.990826Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1990,
"topic": "igwn.gwalert",
"uuid": "a9d20eaa-3458-4fb5-80e7-a35fe02f8f5a",
"title": "S230812e - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"gracedb": "https://gracedb.ligo.org/superevents/S230812e/view/"
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"area_90": 3164.1370424460997,
"duration": null,
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"sequence_num": 1,
"time_created": "2023-08-12T01:14:29Z",
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"published": "2023-08-12T01:14:30.929002Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-12T01:14:30.929025Z",
"modified": "2023-08-12T01:14:30.936382Z",
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{
"id": 1991,
"topic": "igwn.gwalert",
"uuid": "796b56c9-cb4d-41cc-b894-a4866c02fc6e",
"title": "S230812e - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230812e/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230812e/view/"
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"event": {
"far": 1.070313740094197e-06,
"time": "2023-08-12T01:14:05.638Z",
"group": "CBC",
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"area_90": 3164.1370424460997,
"duration": null,
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"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-12T01:19:04Z",
"superevent_id": "S230812e",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-12T01:19:05.381337Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-12T01:19:05.381356Z",
"modified": "2023-08-12T01:19:05.387121Z",
"nonlocalizedevents": [],
"targets": []
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{
"id": 1992,
"topic": "igwn.gwalert",
"uuid": "553864b0-b06f-4b4e-9156-c3fd7e65eefb",
"title": "S230811n - UPDATE",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230811n/files/bayestar.multiorder.fits,2",
"gracedb": "https://gracedb.ligo.org/superevents/S230811n/view/"
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"event": {
"far": 3.167545842243851e-10,
"time": "2023-08-11T03:21:16.293Z",
"group": "CBC",
"search": "AllSky",
"area_50": 238.46430694562284,
"area_90": 810.128191040079,
"duration": null,
"pipeline": "pycbc",
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"instruments": [
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"significant": true,
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"alert_type": "UPDATE",
"sequence_num": 4,
"time_created": "2023-08-12T03:35:39Z",
"superevent_id": "S230811n",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-12T03:35:41.507119Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-12T03:35:41.507142Z",
"modified": "2023-08-12T03:35:41.512075Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1993,
"topic": "gcn.circular",
"uuid": "29598385-9db1-4c62-813f-651fee416432",
"title": "LIGO/Virgo/KAGRA S230811n: Updated Sky localization",
"submitter": "Hop gcn.circular",
"authors": "Aditya Vijaykumar <aditya.vijaykumar@ligo.org>",
"data": {
"date": "23/08/12 03:39:18 GMT",
"from": "Aditya Vijaykumar <aditya.vijaykumar@ligo.org>",
"title": "GCN CIRCULAR",
"number": "34382",
"subject": "LIGO/Virgo/KAGRA S230811n: Updated Sky localization"
},
"message_text": " The LIGO Scientific Collaboration, the Virgo Collaboration, and the KAGRA Collaboration report:\n\nWe have conducted further analysis of the LIGO Hanford Observatory (H1) and LIGO Livingston Observatory (L1) data around the time of the compact binary merger (CBC) candidate S230811n (GCN Circular 34380). Parameter estimation has been performed using Bilby [1] and a new sky map, Bilby.multiorder.fits,0, distributed via GCN Notice, is available for retrieval from the GraceDB event page:\n\nhttps://gracedb.ligo.org/superevents/S230811n\n\nFor the Bilby.multiorder.fits,0 sky map, the 90% credible region is 810 deg2. Marginalized over the whole sky, the a posteriori luminosity distance estimate is 1905 +/- 672 Mpc (a posteriori mean +/- standard deviation).\n\nFor further information about analysis methodology and the contents of this alert, refer to the LIGO/Virgo/KAGRA Public Alerts User Guide\n\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.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkxODExNTY0LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.lukcGZLDDPiaAYa6HY6JsT8xmY3al_9rgX2Xv75L28s\n\n",
"published": "2023-08-12T03:39:33.944410Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-12T03:39:33.944426Z",
"modified": "2023-08-12T03:39:33.948031Z",
"nonlocalizedevents": [
{
"event_id": "S230811n"
}
],
"targets": []
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{
"id": 1994,
"topic": "igwn.gwalert",
"uuid": "52926dd6-b375-413d-9fce-d009296ea9f9",
"title": "S230811n - UPDATE",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
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"gracedb": "https://gracedb.ligo.org/superevents/S230811n/view/"
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"event": {
"far": 3.167545842243851e-10,
"time": "2023-08-11T03:21:16.293Z",
"group": "CBC",
"search": "AllSky",
"area_50": 238.46430694562284,
"area_90": 810.128191040079,
"duration": null,
"pipeline": "pycbc",
"properties": {
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"significant": true,
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"sequence_num": 5,
"time_created": "2023-08-12T03:50:54Z",
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"external_coinc": null
},
"message_text": "",
"published": "2023-08-12T03:50:55.701935Z",
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"created": "2023-08-12T03:50:55.701954Z",
"modified": "2023-08-12T03:50:55.705374Z",
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"targets": []
},
{
"id": 1995,
"topic": "igwn.gwalert",
"uuid": "95592512-a7c4-4f88-a9f4-0aec7e17a0f1",
"title": "S230812x - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230812x/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230812x/view/"
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"event": {
"far": 1.33376e-05,
"time": "2023-08-12T05:44:55.586Z",
"group": "Burst",
"search": "AllSky",
"area_50": 482.5938459964209,
"area_90": 2192.2350012915676,
"duration": 0.017954,
"pipeline": "CWB",
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"classification": {},
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"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-08-12T05:46:08Z",
"superevent_id": "S230812x",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-12T05:46:09.383505Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-12T05:46:09.383523Z",
"modified": "2023-08-12T05:46:09.389044Z",
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{
"id": 1996,
"topic": "igwn.gwalert",
"uuid": "46e33435-1a3f-488b-8b35-6cc26acd4a63",
"title": "S230812x - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230812x/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230812x/view/"
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"event": {
"far": 1.33376e-05,
"time": "2023-08-12T05:44:55.586Z",
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"area_50": 482.5938459964209,
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"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-12T05:50:42Z",
"superevent_id": "S230812x",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-12T05:50:43.085507Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-12T05:50:43.085525Z",
"modified": "2023-08-12T05:50:43.088835Z",
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"targets": []
},
{
"id": 1997,
"topic": "gcn.circular",
"uuid": "5126e143-3138-42ae-a83e-594820956d0a",
"title": "GRB 230812A: 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": "23/08/12 09:39:02 GMT",
"from": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
"title": "GCN CIRCULAR",
"number": "34383",
"subject": "GRB 230812A: Fermi GBM Final Real-time Localization"
},
"message_text": "The Fermi GBM team reports the detection of a likely LONG GRB\n\nAt 09:28:32 UT on 12 Aug 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230812A (trigger 713525317.441558 / 230812395).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 294.2, Dec = -32.2 (J2000 degrees, equivalent to J2000 19h 36m, -32d 12'), with a statistical uncertainty of 4.5 degrees.\n\nThe angle from the Fermi LAT boresight is 71.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230812395/quicklook/glg_skymap_all_bn230812395.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/bn230812395/quicklook/glg_healpix_all_bn230812395.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230812395/quicklook/glg_lc_medres34_bn230812395.gif\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkxODMzMTQ4LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.kfDGaMK2y00St7VgaqIP_FutOkbkpmaFzOozdF5IpN0\n\n",
"published": "2023-08-12T09:39:15.415418Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-12T09:39:15.415434Z",
"modified": "2023-08-12T09:39:15.420870Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1998,
"topic": "igwn.gwalert",
"uuid": "f32f6d77-0e36-45e5-8d44-9d2f77b4a34a",
"title": "S230812aj - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
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"far": 2.263859641971067e-05,
"time": "2023-08-12T12:04:20.036Z",
"group": "CBC",
"search": "AllSky",
"area_50": 275.97024171599685,
"area_90": 1201.02920629718,
"duration": null,
"pipeline": "spiir",
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"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-08-12T12:04:45Z",
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},
"message_text": "",
"published": "2023-08-12T12:04:46.886557Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-12T12:04:46.886574Z",
"modified": "2023-08-12T12:04:46.890886Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1999,
"topic": "igwn.gwalert",
"uuid": "ebad4c5f-ea78-4da2-9e1f-5aaf6f1746dd",
"title": "S230812aj - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
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"gracedb": "https://gracedb.ligo.org/superevents/S230812aj/view/"
},
"event": {
"far": 2.263859641971067e-05,
"time": "2023-08-12T12:04:20.036Z",
"group": "CBC",
"search": "AllSky",
"area_50": 275.97024171599685,
"area_90": 1201.02920629718,
"duration": null,
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},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-12T12:09:20Z",
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"external_coinc": null
},
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"published": "2023-08-12T12:09:21.634843Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-12T12:09:21.634862Z",
"modified": "2023-08-12T12:09:21.638316Z",
"nonlocalizedevents": [],
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},
{
"id": 2000,
"topic": "igwn.gwalert",
"uuid": "b3641438-fe17-4753-9a53-5840af054ebb",
"title": "S230812ak - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
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},
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"time": "2023-08-12T12:09:09.090Z",
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}
]
}
