HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept
{
"count": 257459,
"next": "https://hermes.lco.global/api/v0/messages/?format=api&limit=100&offset=1600&ordering=targets",
"previous": "https://hermes.lco.global/api/v0/messages/?format=api&limit=100&offset=1400&ordering=targets",
"results": [
{
"id": 3394,
"topic": "gcn.circular",
"uuid": "07676fa5-3834-4959-9d00-40673cf02d31",
"title": "Swift Triggers 1192735 and 1192737 are not astrophysical events",
"submitter": "Hop gcn.circular",
"authors": "K.L. Page at U Leicester <klp5@leicester.ac.uk>",
"data": {
"date": "23/09/26 22:32:45 GMT",
"from": "K.L. Page at U Leicester <klp5@leicester.ac.uk>",
"urls": {
"gcn": "https://gcn.nasa.gov/circulars/34771"
},
"title": "GCN CIRCULAR",
"number": "34771",
"subject": "Swift Triggers 1192735 and 1192737 are not astrophysical events"
},
"message_text": "\nJ. A. Kennea (PSU) and K. L. Page (U Leicester) report on behalf of\nthe Neil Gehrels Swift Observatory Team:\n\nThe Swift triggers 1192735 and 1192737 at 21:51:11 UT and 22:11:52 respectively, were caused by star tracker loss-of-lock problems, and are not astrophysical events.\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/34771.",
"published": "2023-09-26T22:32:56.008827Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-09-26T22:32:56.008850Z",
"modified": "2023-09-26T22:32:56.018790Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3395,
"topic": "igwn.gwalert",
"uuid": "880e3fec-b9aa-4369-8444-9a16161921f2",
"title": "S230926at - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230926at/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230926at/view/"
},
"event": {
"far": 2.18674e-06,
"time": "2023-09-26T22:45:27.918Z",
"group": "Burst",
"search": "BBH",
"area_50": 881.2583274717254,
"area_90": 2971.0995040475314,
"duration": 0.013127,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "c3a354a43590edd1a8e701db110a9518",
"classification": {},
"skymap_version": 0,
"central_frequency": 50.436852
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-09-26T22:46:34Z",
"superevent_id": "S230926at",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-26T22:46:35.979002Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-26T22:46:35.979028Z",
"modified": "2023-09-26T22:46:35.984669Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3396,
"topic": "gcn.circular",
"uuid": "7f555486-44bd-4c67-9baa-cb35a9fdeaa6",
"title": "Swift Triggers 1192740, 1192742 and 1192743 are not astrophysical events",
"submitter": "Hop gcn.circular",
"authors": "K.L. Page at U Leicester <klp5@leicester.ac.uk>",
"data": {
"date": "23/09/26 22:48:32 GMT",
"from": "K.L. Page at U Leicester <klp5@leicester.ac.uk>",
"urls": {
"gcn": "https://gcn.nasa.gov/circulars/34772"
},
"title": "GCN CIRCULAR",
"number": "34772",
"subject": "Swift Triggers 1192740, 1192742 and 1192743 are not astrophysical events"
},
"message_text": "\nK. L. Page (U Leicester) report on behalf of the Neil Gehrels Swift\nObservatory Team:\n\nAs of 22:45 UT, Swift continues to have star tracker loss-of-lock problems. Swift\ntriggers 1192740, 1192742 and 1192743 are also not astrophysical events. As a\nreminder, please verify that the Swift GCN notices do not have the comment\n\nCOMMENTS: This trigger occured while the StarTracker had lost lock, so it is possibly bogus.\n\nbefore assuming an event is real. Further retraction circulars will not be published until the loss-of-lock problem is cleared.\n\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/34772.",
"published": "2023-09-26T22:48:42.228861Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-09-26T22:48:42.228881Z",
"modified": "2023-09-26T22:48:42.234843Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3397,
"topic": "igwn.gwalert",
"uuid": "e10b7803-82d8-4529-8be2-c4b31bd361f2",
"title": "S230926at - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230926at/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230926at/view/"
},
"event": {
"far": 2.18674e-06,
"time": "2023-09-26T22:45:27.918Z",
"group": "Burst",
"search": "BBH",
"area_50": 881.2583274717254,
"area_90": 2971.0995040475314,
"duration": 0.013127,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "c3a354a43590edd1a8e701db110a9518",
"classification": {},
"skymap_version": 0,
"central_frequency": 50.436852
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-26T22:51:07Z",
"superevent_id": "S230926at",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-26T22:51:08.743886Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-26T22:51:08.743915Z",
"modified": "2023-09-26T22:51:08.749467Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3398,
"topic": "igwn.gwalert",
"uuid": "d03722c2-e64a-4ca6-bfbf-8b1df3e2fbda",
"title": "S230927g - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230927g/files/olib.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230927g/view/"
},
"event": {
"far": 7.193289567111437e-07,
"time": "2023-09-27T02:49:41.762Z",
"group": "Burst",
"search": "AllSky",
"area_50": 127.62508992492305,
"area_90": 492.4030904748265,
"duration": 0.0012404485752365076,
"pipeline": "oLIB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "aefd2d54f57f0459ad7d386ca36f8254",
"classification": {},
"skymap_version": 0,
"central_frequency": 493.4271338998489
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-09-27T03:09:20Z",
"superevent_id": "S230927g",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-27T03:09:21.670025Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-27T03:09:21.670053Z",
"modified": "2023-09-27T03:09:21.677895Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 9478,
"topic": "lvk-users.beccatest",
"uuid": "babe309b-4e1d-4a27-9132-1d31c5fb7d86",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"L1"
],
"time": [
1400533500
],
"range": 164.21400040515738
},
"message_text": "",
"published": "2024-05-23T21:05:00.341837Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-23T21:05:00.341855Z",
"modified": "2024-05-23T21:05:00.341863Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3406,
"topic": "gcn.circular",
"uuid": "12b3681d-57e6-46ea-815c-be99c4984692",
"title": "LIGO/Virgo/KAGRA S230927be: Identification of a GW compact binary merger candidate",
"submitter": "Hop gcn.circular",
"authors": "brina.martinez@ligo.org",
"data": {
"date": "23/09/27 16:18:47 GMT",
"from": "brina.martinez@ligo.org",
"urls": {
"gcn": "https://gcn.nasa.gov/circulars/34775"
},
"title": "GCN CIRCULAR",
"number": "34775",
"subject": "LIGO/Virgo/KAGRA S230927be: 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 S230927be during\nreal-time processing of data from LIGO Hanford Observatory (H1) and\nLIGO Livingston Observatory (L1) at 2023-09-27 15:38:32.919 UTC (GPS\ntime: 1379864330.919). The candidate was found by the CWB [1], GstLAL\n[2], MBTA [3], PyCBC Live [4], and SPIIR [5] analysis pipelines.\n\nS230927be 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/S230927be\n\nThe classification of the GW signal, in order of descending\nprobability, is BBH (>99%), Terrestrial (<1%), BNS (<1%), or NSBH\n(<1%).\n\nAssuming the candidate is astrophysical in origin, the probability\nthat the lighter compact object is consistent with a neutron star mass\n(HasNS) is <1%. [6] Using the masses and spins inferred from the\nsignal, the probability of matter outside the final compact object\n(HasRemnant) is <1%. [6] Both HasNS and HasRemnant consider the\nsupport of several neutron star equations of state. The probability\nthat either of the binary components lies between 3 and 5 solar masses\n(HasMassGap) is <1%.\n\nTwo sky maps are available at this time and can be retrieved from the\nGraceDB event page:\n * bayestar.multiorder.fits,0, an initial localization generated by\nBAYESTAR [7], distributed via GCN notice about 35 seconds after the\ncandidate event time.\n * bayestar.multiorder.fits,1, an initial localization generated by\nBAYESTAR [7], distributed via GCN notice about 5 minutes after the\ncandidate event time.\n\nThe preferred sky map at this time is bayestar.multiorder.fits,1. For\nthe bayestar.multiorder.fits,1 sky map, the 90% credible region is 527\ndeg2. Marginalized over the whole sky, the a posteriori luminosity\ndistance estimate is 1056 +/- 308 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\nView this GCN Circular online at https://gcn.nasa.gov/circulars/34775.",
"published": "2023-09-28T20:53:59.297800Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-09-28T20:53:59.297837Z",
"modified": "2023-09-28T20:53:59.306413Z",
"nonlocalizedevents": [
{
"event_id": "S230927b"
}
],
"targets": []
},
{
"id": 3407,
"topic": "gcn.circular",
"uuid": "87e3224e-ec42-4369-b3ac-32cb1d24d0c9",
"title": "AT2023sva / GRB230916B: GIT observations of the afterglow",
"submitter": "Hop gcn.circular",
"authors": "Varun Bhalerao at IIT Bombay <varunb@iitb.ac.in>",
"data": {
"date": "23/09/28 18:27:31 GMT",
"from": "Varun Bhalerao at IIT Bombay <varunb@iitb.ac.in>",
"urls": {
"gcn": "https://gcn.nasa.gov/circulars/34780"
},
"title": "GCN CIRCULAR",
"number": "34780",
"subject": "AT2023sva / GRB230916B: GIT observations of the afterglow"
},
"message_text": "A. Salgundi, V. Swain, R. Kumar, G. Waratkar, R. Sharma, V. Bhalerao (IITB), G.C. Anupama, S. Barway (IIA) and K. Angail (IAO) report on behalf of the GIT team:\n\nWe observed AT2023sva (Vail et al., GCN 34730; Tonry et al. 2023, TNS report 188327) which is confirmed as an orphan afterglow (Roberts et al., GCN Circ. 34748; GCN Circ. 34749) with the 0.7m GROWTH-India Telescope (GIT). The observations started at 16:42:17 UT on 2023-09-19, roughly 2.3 days after the first ZTF report. We obtained 10 images of 300s exposure in the r' filter. We clearly detect the candidate in our stacked image at the position reported by Vail et al., GCN Circ. 34730. It was not detected in deep observations on later days. The photometry of the candidate is reported below.\n\n----------------------------------------------------------------\n| JD (mid) | Filter | Total Exposure (s) | Magnitude (AB) | Limiting Mag (AB) |\n| ----------------- | ------ | ------------------ | -------------- | ----------------- |\n| 2460207.214532005 | r' | 10x300 | 21.89 +/- 0.07 | 22.63 |\n| 2460209.289487210 | r' | 14x300 | -- | 22.28 |\n| 2460210.459151377 | r' | 14x300 | -- | 22.36 |\n\n----------------------------------------------------------------\n\nThe measurement is calibrated against PanSTARRS DR1 (Chambers et al., 2016) and not corrected for Galactic extinction.\n\nBased on the publicly avialable photometry (Vail et al., GCN Circ. 34730; Malesani et al., GCN Circ. 34731; Parra-Ramos et al., GCN Circ. 34744) and our measurements, we find that the source is consistently fading as a power-law with flux proportional to (tât0)^âalpha where t0 is MJD 60203.08 +/- 0.25 (2023-09-16 01:55:12) and alpha = 3.79 +/- 0.48. This decline is much faster than typical afterglows. This t0 is consistent with Fermi GBM trigger 716527670/230916144, which is also spatially coincident with the afterglow as reported by Roberts et al. (GCN 34748). The t0 fit confirms the association between the two events, which we name GRB 230916B. \n\nThe t0 is not consistent with GRB 230916A (Grefenstette et al., GCN 34721). We note that Ruffini et al (GCN 34779) also are referring to this GRB rather than the NuSTAR-reported trigger. \n\nFurther imaging of the field is encouraged to find any potential host galaxy.\n\nThe GROWTH India Telescope (GIT; Kumar et al. 2022) is a 70-cm telescope with a 0.7-degree field of view, set up by the Indian Institute of Astrophysics (IIA) and the Indian Institute of Technology Bombay (IITB) with funding from DST-SERB and IUSSTF. It is located at the Indian Astronomical Observatory (Hanle), operated by IIA. We acknowledge funding by the IITB alumni batch of 1994, which partially supports the operations of the telescope. Telescope technical details are available at https://sites.google.com/view/growthindia/.\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/34780.",
"published": "2023-09-28T20:53:59.336849Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-09-28T20:53:59.336869Z",
"modified": "2023-09-28T20:53:59.342473Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 9479,
"topic": "lvk-users.beccatest",
"uuid": "17ebd659-8fba-41eb-941d-2d7737de94d5",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"V1"
],
"time": [
1400533500
],
"range": 50.23364068716765
},
"message_text": "",
"published": "2024-05-23T21:05:08.370412Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-23T21:05:08.370433Z",
"modified": "2024-05-23T21:05:08.370441Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3409,
"topic": "gcn.circular",
"uuid": "3e844afd-983a-41dc-991f-4ba2913b0904",
"title": "LIGO/Virgo/KAGRA S230927l: Updated Sky localization",
"submitter": "Hop gcn.circular",
"authors": "Colm Talbot at University of Chicago <talbotcolm@gmail.com>",
"data": {
"date": "23/09/28 03:50:19 GMT",
"from": "Colm Talbot at University of Chicago <talbotcolm@gmail.com>",
"urls": {
"gcn": "https://gcn.nasa.gov/circulars/34777"
},
"title": "GCN CIRCULAR",
"number": "34777",
"subject": "LIGO/Virgo/KAGRA S230927l: 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 S230927l (GCN Circular 34773). 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/S230927l\n\nFor the Bilby.multiorder.fits,0 sky map, the 90% credible region is 1177 deg2. Marginalized over the whole sky, the a posteriori luminosity distance estimate is 2966 +/- 1041 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 [1] Ashton et al. ApJS 241, 27 (2019)\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/34777.",
"published": "2023-09-28T20:53:59.364802Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-09-28T20:53:59.364821Z",
"modified": "2023-09-28T20:53:59.369929Z",
"nonlocalizedevents": [
{
"event_id": "S230927l"
}
],
"targets": []
},
{
"id": 3410,
"topic": "igwn.gwalert",
"uuid": "89a80ecf-8ffe-4210-a695-f24b390b3514",
"title": "S230927ae - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230927ae/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230927ae/view/"
},
"event": {
"far": 2.05025e-05,
"time": "2023-09-27T08:30:12.889Z",
"group": "Burst",
"search": "AllSky",
"area_50": 384.3964895067145,
"area_90": 1630.7475526452977,
"duration": 0.039929,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "291e3dacc52ee721fbaff19f1db48541",
"classification": {},
"skymap_version": 0,
"central_frequency": 229.891113
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-09-27T08:37:28Z",
"superevent_id": "S230927ae",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:53:59.439307Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:53:59.439331Z",
"modified": "2023-09-28T20:53:59.445506Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3411,
"topic": "igwn.gwalert",
"uuid": "61ca6877-aa51-45d7-a059-c008115ceb28",
"title": "S230927ah - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230927ah/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230927ah/view/"
},
"event": {
"far": 8.81474e-06,
"time": "2023-09-27T10:11:50.566Z",
"group": "Burst",
"search": "BBH",
"area_50": 2392.826182497037,
"area_90": 7508.3209500591,
"duration": 0.012391,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "b375989d51116fe1524e1655e6dafb90",
"classification": {},
"skymap_version": 0,
"central_frequency": 56.392086
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-09-27T10:12:54Z",
"superevent_id": "S230927ah",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:53:59.484210Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:53:59.484230Z",
"modified": "2023-09-28T20:53:59.489515Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3412,
"topic": "igwn.gwalert",
"uuid": "40454d04-a274-4c0a-ba77-0bfefdcb07d1",
"title": "S230927an - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230927an/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230927an/view/"
},
"event": {
"far": 1.145318947237683e-05,
"time": "2023-09-27T13:44:27.010Z",
"group": "CBC",
"search": "AllSky",
"area_50": 721.1630646476953,
"area_90": 8359.364706303226,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.0,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "20e6c6ea9668168ffaa3ee8423a518f8",
"classification": {
"BBH": 0.0,
"BNS": 0.07932982305857511,
"NSBH": 0.010906626373933782,
"Terrestrial": 0.9097635505674911
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-09-27T13:44:53Z",
"superevent_id": "S230927an",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:53:59.536606Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:53:59.536626Z",
"modified": "2023-09-28T20:53:59.541923Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 4138,
"topic": "igwn.gwalert",
"uuid": "8a4b1c29-2b96-4135-ac27-5f53364ab141",
"title": "S231025aa - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231025aa/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231025aa/view/"
},
"event": {
"far": 1.18167e-06,
"time": "2023-10-25T12:02:43.133Z",
"group": "Burst",
"search": "BBH",
"area_50": 1631.5868462905087,
"area_90": 5817.983548603809,
"duration": 0.009575,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "4bb80382a595e543ced4f74274664194",
"classification": {},
"skymap_version": 0,
"central_frequency": 57.301945
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-10-25T12:04:13Z",
"superevent_id": "S231025aa",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-25T12:04:14.734671Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-25T12:04:14.734710Z",
"modified": "2023-10-25T12:04:14.742821Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3416,
"topic": "gcn.circular",
"uuid": "61e4d259-9d20-4fbb-a89d-88401a11537c",
"title": "transient AT2023sva: A Binary Driven Hypernova with a possible associated supernova",
"submitter": "Hop gcn.circular",
"authors": "Remo Ruffini at ICRA <ruffini@icra.it>",
"data": {
"date": "23/09/28 16:05:44 GMT",
"from": "Remo Ruffini at ICRA <ruffini@icra.it>",
"urls": {
"gcn": "https://gcn.nasa.gov/circulars/34779"
},
"title": "GCN CIRCULAR",
"number": "34779",
"subject": "transient AT2023sva: A Binary Driven Hypernova with a possible associated supernova"
},
"message_text": "R. Ruffini, Y. Aimuratov, L. Becerra, C.L. Bianco, C. Cherubini, S. Filippi, Liang Li, R. Moradi, F. Rastegar Nia, J.A. Rueda, N. Sahakyan, Y. Wang, S.S. Xue, S.R. Zhang, on behalf of the ICRANet team, report:\n\n\nFollowing the BdHN classification [Aimuratov, et al., ApJ 955 (2023) 93] and the determination of the redshift z=2.2 of transient AT2023sva (de Ugarte Postigo, et al., GCN 34740), from the energetics evaluated by Liang Li (2023) from Fermi GBM data in (2.15+/-0.13)x10^{52} erg (see attached figure), we conclude that the source is a BdHN II (GRB230916A).\n\nWe Propose to look with the James Webb Space Telescope the appearance of the associated supernova (SN) on October 31 (+/-1 day), in order to extend the GRB-SN connection in the range 1<z<3 and verify the standard candle nature of SNe Ib/c.\n\nFigure: http://www.icranet.org/documents/GRB230916A.pdf\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/34779.",
"published": "2023-09-28T20:53:59.682628Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-09-28T20:53:59.682647Z",
"modified": "2023-09-28T20:53:59.694435Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 9482,
"topic": "lvk-users.beccatest",
"uuid": "34943ea2-c705-46d0-967f-f00c26763d5d",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"V1"
],
"time": [
1400533600
],
"range": 50.30151557674756
},
"message_text": "",
"published": "2024-05-23T21:06:46.858801Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-23T21:06:46.858825Z",
"modified": "2024-05-23T21:06:46.858833Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 9483,
"topic": "lvk-users.beccatest",
"uuid": "5a4af710-4fdd-4063-8819-5b0d10145afa",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"H1"
],
"time": [
1400533700
],
"range": 152.64670120495435
},
"message_text": "",
"published": "2024-05-23T21:08:18.111542Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-23T21:08:18.111579Z",
"modified": "2024-05-23T21:08:18.111593Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 9484,
"topic": "lvk-users.beccatest",
"uuid": "8ed6512a-7595-429f-9fa4-87f4565dd9c5",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"L1"
],
"time": [
1400533700
],
"range": 164.59777416637044
},
"message_text": "",
"published": "2024-05-23T21:08:20.150656Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-23T21:08:20.150695Z",
"modified": "2024-05-23T21:08:20.150712Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 9485,
"topic": "lvk-users.beccatest",
"uuid": "6e9063e9-1c67-4226-8242-95158824c01c",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"V1"
],
"time": [
1400533700
],
"range": 50.23870565313988
},
"message_text": "",
"published": "2024-05-23T21:08:26.191788Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-23T21:08:26.191809Z",
"modified": "2024-05-23T21:08:26.191817Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3427,
"topic": "igwn.gwalert",
"uuid": "cb38dad0-b3cb-4892-9711-b351ebe4f3b2",
"title": "S230927be - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230927be/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230927be/view/"
},
"event": {
"far": 3.167545842243851e-10,
"time": "2023-09-27T15:38:32.919Z",
"group": "CBC",
"search": "AllSky",
"area_50": 136.28030564116324,
"area_90": 527.0764091926128,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": true,
"skymap_hash": "b902fc512be53f92f4abeb16a3f6e0d3",
"classification": {
"BBH": 0.9996578739974026,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.00034212600259742043
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-09-27T15:44:16Z",
"superevent_id": "S230927be",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:13.360194Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:13.360231Z",
"modified": "2023-09-28T20:54:13.385365Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3428,
"topic": "igwn.gwalert",
"uuid": "2c8d8edc-4cc0-4ac5-b10e-4c4ec53df6e9",
"title": "S230927an - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230927an/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230927an/view/"
},
"event": {
"far": 1.145318947237683e-05,
"time": "2023-09-27T13:44:27.010Z",
"group": "CBC",
"search": "AllSky",
"area_50": 721.1630646476953,
"area_90": 8359.364706303226,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.0,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "20e6c6ea9668168ffaa3ee8423a518f8",
"classification": {
"BBH": 0.0,
"BNS": 0.07932982305857511,
"NSBH": 0.010906626373933782,
"Terrestrial": 0.9097635505674911
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-27T13:49:27Z",
"superevent_id": "S230927an",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:13.434223Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:13.434243Z",
"modified": "2023-09-28T20:54:13.481862Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3429,
"topic": "igwn.gwalert",
"uuid": "df257fcb-e6c6-4105-971c-c39719c5b8a4",
"title": "S230927be - INITIAL",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230927be/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230927be/view/"
},
"event": {
"far": 3.167545842243851e-10,
"time": "2023-09-27T15:38:32.919Z",
"group": "CBC",
"search": "AllSky",
"area_50": 136.28030564116324,
"area_90": 527.0764091926128,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": true,
"skymap_hash": "b902fc512be53f92f4abeb16a3f6e0d3",
"classification": {
"BBH": 0.9996578739974026,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.00034212600259742043
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "INITIAL",
"sequence_num": 2,
"time_created": "2023-09-27T16:04:58Z",
"superevent_id": "S230927be",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:13.526588Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:13.526608Z",
"modified": "2023-09-28T20:54:13.531751Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3430,
"topic": "igwn.gwalert",
"uuid": "4386311e-2849-4c80-bed3-0e802ec6ef8d",
"title": "S230928r - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230928r/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230928r/view/"
},
"event": {
"far": 1.83963e-05,
"time": "2023-09-28T07:18:38.615Z",
"group": "Burst",
"search": "AllSky",
"area_50": 671.4349161689337,
"area_90": 2313.9325798471878,
"duration": 0.008964,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "4935bcefde1976450f9002056c72cf67",
"classification": {},
"skymap_version": 0,
"central_frequency": 179.484604
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-09-28T07:24:55Z",
"superevent_id": "S230928r",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:13.957937Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:13.957961Z",
"modified": "2023-09-28T20:54:14.008415Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3431,
"topic": "igwn.gwalert",
"uuid": "e24b9f8f-186b-47ff-930f-4be67043d7c4",
"title": "S230927be - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230927be/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S230927be/view/"
},
"event": {
"far": 4.563712414670365e-43,
"time": "2023-09-27T15:38:32.919Z",
"group": "CBC",
"search": "AllSky",
"area_50": 119.1796976199857,
"area_90": 539.0363436368721,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": true,
"skymap_hash": "673b169a72f0fef5947e3b3fc254939c",
"classification": {
"BBH": 1.0,
"BNS": 9.843718345380827e-86,
"NSBH": 8.760098442763725e-84,
"Terrestrial": 0.0
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 3,
"time_created": "2023-09-27T15:39:08Z",
"superevent_id": "S230927be",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:14.108803Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:14.108827Z",
"modified": "2023-09-28T20:54:14.114131Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3432,
"topic": "igwn.gwalert",
"uuid": "6bfab9fd-afd8-45f1-a62d-08c13dba8081",
"title": "S230927aq - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230927aq/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230927aq/view/"
},
"event": {
"far": 1.658970459416795e-05,
"time": "2023-09-27T13:49:15.705Z",
"group": "CBC",
"search": "AllSky",
"area_50": 988.2682672361492,
"area_90": 3765.0712924172954,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.024214082713417944,
"HasMassGap": 0.26719122043901594,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "6b5737fceb839b975c1dd33ab8087c8a",
"classification": {
"BBH": 0.03992759023161618,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9600724097683838
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-27T13:54:27Z",
"superevent_id": "S230927aq",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:19.838465Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:19.838487Z",
"modified": "2023-09-28T20:54:19.844311Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 9492,
"topic": "lvk-users.beccatest",
"uuid": "0545e412-9dea-4674-93d6-f0067a8eab07",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"H1"
],
"time": [
1400534000
],
"range": 152.90059190683502
},
"message_text": "",
"published": "2024-05-23T21:13:19.330958Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-23T21:13:19.330979Z",
"modified": "2024-05-23T21:13:19.330987Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 9493,
"topic": "lvk-users.beccatest",
"uuid": "318dd0ca-1db2-47d9-bdce-51bf851b5049",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"L1"
],
"time": [
1400534000
],
"range": 164.4621549865883
},
"message_text": "",
"published": "2024-05-23T21:13:20.345767Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-23T21:13:20.345788Z",
"modified": "2024-05-23T21:13:20.345797Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 9494,
"topic": "lvk-users.beccatest",
"uuid": "c137285d-0971-4918-b090-2b8558b3829d",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"V1"
],
"time": [
1400534000
],
"range": 50.4593534710061
},
"message_text": "",
"published": "2024-05-23T21:13:39.388694Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-23T21:13:39.388729Z",
"modified": "2024-05-23T21:13:39.388746Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 9495,
"topic": "lvk-users.beccatest",
"uuid": "a93ca2ca-1195-4bbe-ba65-c811c7a4d93f",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"L1"
],
"time": [
1400534100
],
"range": 164.3437895230755
},
"message_text": "",
"published": "2024-05-23T21:15:00.699533Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-23T21:15:00.699571Z",
"modified": "2024-05-23T21:15:00.699589Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 9496,
"topic": "lvk-users.beccatest",
"uuid": "b0d10612-b63c-4f57-830e-4e25648f12ca",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"H1"
],
"time": [
1400534100
],
"range": 152.6275734872624
},
"message_text": "",
"published": "2024-05-23T21:15:00.714284Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-23T21:15:00.714321Z",
"modified": "2024-05-23T21:15:00.714339Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 9497,
"topic": "lvk-users.beccatest",
"uuid": "863bd44b-44cf-45af-a286-2d04565803f2",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"V1"
],
"time": [
1400534100
],
"range": 50.65318698669309
},
"message_text": "",
"published": "2024-05-23T21:15:06.739349Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-23T21:15:06.739375Z",
"modified": "2024-05-23T21:15:06.739383Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3445,
"topic": "igwn.gwalert",
"uuid": "dfe9e0d0-5f9c-47d2-a4a2-8742919c5375",
"title": "S230928af - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230928af/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230928af/view/"
},
"event": {
"far": 3.543216779133972e-06,
"time": "2023-09-28T10:10:25.371Z",
"group": "CBC",
"search": "AllSky",
"area_50": 584.7778473008806,
"area_90": 2124.2522160294634,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.045197539302802466,
"HasRemnant": 0.07712956452029447
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "f0837bce517a52cfc5d46d7aa6b46ce8",
"classification": {
"BBH": 0.002975267619079337,
"BNS": 0.0,
"NSBH": 0.010686374815633353,
"Terrestrial": 0.9863383575652873
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-28T10:15:25Z",
"superevent_id": "S230928af",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:31.585737Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:31.585756Z",
"modified": "2023-09-28T20:54:31.592244Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3446,
"topic": "igwn.gwalert",
"uuid": "d956f328-1f24-426f-9834-8b55b9567775",
"title": "S230928ap - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230928ap/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230928ap/view/"
},
"event": {
"far": 6.756058526921909e-06,
"time": "2023-09-28T12:22:50.729Z",
"group": "CBC",
"search": "AllSky",
"area_50": 638.4926405943953,
"area_90": 2985.367496016121,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.28881383104040936,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "c6ecc32c90da29e504286a12bfbbc14c",
"classification": {
"BBH": 0.0,
"BNS": 0.00654884789732451,
"NSBH": 3.116012685650822e-05,
"Terrestrial": 0.993419991975819
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-09-28T12:28:01Z",
"superevent_id": "S230928ap",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:31.632494Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:31.632513Z",
"modified": "2023-09-28T20:54:31.637665Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3447,
"topic": "igwn.gwalert",
"uuid": "05f78685-19ff-43fa-8966-c37b75bf4179",
"title": "S230928q - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230928q/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230928q/view/"
},
"event": {
"far": 1.269038511964027e-05,
"time": "2023-09-28T07:19:50.362Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1329.6509574257914,
"area_90": 5630.82106572172,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.7302907767790859,
"HasMassGap": 0.20193748931542377,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "5458a1264158fdfb74e76d2f3f02c483",
"classification": {
"BBH": 0.05195601114645304,
"BNS": 0.0,
"NSBH": 0.1110344080463285,
"Terrestrial": 0.8370095808072184
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-28T07:20:20Z",
"superevent_id": "S230928q",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:31.687069Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:31.687088Z",
"modified": "2023-09-28T20:54:31.692847Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3448,
"topic": "igwn.gwalert",
"uuid": "5d941256-fd3f-4e07-a6dd-0d5b683ef9b5",
"title": "S230928aj - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230928aj/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S230928aj/view/"
},
"event": {
"far": 1.74531222946288e-05,
"time": "2023-09-28T10:51:54.384Z",
"group": "CBC",
"search": "AllSky",
"area_50": 971.6922177432289,
"area_90": 3757.5176496103945,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.04210230956782681,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "f3d1e0956ae7fb75fad992b02577228e",
"classification": {
"BBH": 0.08813338451487787,
"BNS": 1.784823678850466e-13,
"NSBH": 1.2211940024929058e-11,
"Terrestrial": 0.9118666154727317
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-28T10:52:18Z",
"superevent_id": "S230928aj",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:31.736265Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:31.736285Z",
"modified": "2023-09-28T20:54:31.741529Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3449,
"topic": "igwn.gwalert",
"uuid": "503951d3-9184-4c53-9667-8aaee4d7d481",
"title": "S230928ao - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230928ao/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230928ao/view/"
},
"event": {
"far": 2.222219700342976e-05,
"time": "2023-09-28T12:22:41.100Z",
"group": "CBC",
"search": "AllSky",
"area_50": 101.64632881299619,
"area_90": 452.16945135751615,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.10175232275464477,
"HasRemnant": 0.5454918813127934
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "32266fe6172789c2677d1d9655d4cd6d",
"classification": {
"BBH": 0.0037130469882621503,
"BNS": 0.0002827336082306574,
"NSBH": 0.054044355460175775,
"Terrestrial": 0.9419598639433314
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-28T12:23:05Z",
"superevent_id": "S230928ao",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:31.784810Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:31.784830Z",
"modified": "2023-09-28T20:54:31.790359Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3450,
"topic": "igwn.gwalert",
"uuid": "4da81bfd-1f82-46c2-aa09-4b0e8c8921ce",
"title": "S230928be - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230928be/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230928be/view/"
},
"event": {
"far": 1.39424e-05,
"time": "2023-09-28T15:11:07.055Z",
"group": "Burst",
"search": "AllSky",
"area_50": 826.7042405329995,
"area_90": 3294.2275574538307,
"duration": 0.007356,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "62a4d34d7229e944527265988f3988ec",
"classification": {},
"skymap_version": 0,
"central_frequency": 1329.769165
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-09-28T15:12:43Z",
"superevent_id": "S230928be",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:31.821272Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:31.821291Z",
"modified": "2023-09-28T20:54:31.826610Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6727,
"topic": "igwn.gwalert",
"uuid": "14273659-cbbd-4757-b4af-9e5c4bf305b2",
"title": "S240420ak - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S240420ak/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S240420ak/view/"
},
"event": {
"far": 6.998270116568196e-06,
"time": "2024-04-20T04:20:34.945Z",
"group": "CBC",
"search": "AllSky",
"area_50": 342.0646162763762,
"area_90": 1485.3399286124627,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.012712917913729273,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "d38e484f58d989d08645d55eca767990",
"classification": {
"BBH": 0.23893841702956678,
"BNS": 1.0990667631278151e-16,
"NSBH": 7.426232464472544e-15,
"Terrestrial": 0.7610615829704257
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-04-20T04:27:11Z",
"superevent_id": "S240420ak",
"external_coinc": null
},
"message_text": "",
"published": "2024-04-20T04:27:12.193337Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-04-20T04:27:12.193360Z",
"modified": "2024-04-20T04:27:12.199289Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 9499,
"topic": "lvk-users.beccatest",
"uuid": "64e0d849-e216-405e-a5ff-a72d6f3664bb",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"L1"
],
"time": [
1400534200
],
"range": 164.53290495273546
},
"message_text": "",
"published": "2024-05-23T21:16:41.111493Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-23T21:16:41.111514Z",
"modified": "2024-05-23T21:16:41.111528Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3455,
"topic": "igwn.gwalert",
"uuid": "9de428a2-911c-4874-bad2-5a14d8fea38c",
"title": "S230927l - UPDATE",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230927l/files/bayestar.multiorder.fits,2",
"gracedb": "https://gracedb.ligo.org/superevents/S230927l/view/"
},
"event": {
"far": 1.07500195412058e-08,
"time": "2023-09-27T04:37:29.118Z",
"group": "CBC",
"search": "AllSky",
"area_50": 286.1466771641823,
"area_90": 1177.3191608199645,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": true,
"skymap_hash": "cdc12c50393a2e5a635c0ea45281b0b6",
"classification": {
"BBH": 0.9757501063003873,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.024249893699612723
},
"skymap_version": 2,
"central_frequency": null
},
"alert_type": "UPDATE",
"sequence_num": 4,
"time_created": "2023-09-28T03:45:26Z",
"superevent_id": "S230927l",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:37.805103Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:37.805123Z",
"modified": "2023-09-28T20:54:37.810633Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3456,
"topic": "igwn.gwalert",
"uuid": "5ae265e2-8a0a-4dd9-8d5a-20c0dd2a7119",
"title": "S230928bc - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230928bc/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230928bc/view/"
},
"event": {
"far": 4.00505e-06,
"time": "2023-09-28T15:09:31.522Z",
"group": "Burst",
"search": "AllSky",
"area_50": 641.84981517524,
"area_90": 2319.8076353636657,
"duration": 0.0723,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "0002ebb9023a4c1d09b2cd22524182d7",
"classification": {},
"skymap_version": 0,
"central_frequency": 22.691061
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-09-28T15:11:51Z",
"superevent_id": "S230928bc",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:37.860142Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:37.860162Z",
"modified": "2023-09-28T20:54:37.865214Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3457,
"topic": "igwn.gwalert",
"uuid": "2150708d-3f8d-4c37-b67b-61b72d391015",
"title": "S230928am - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230928am/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230928am/view/"
},
"event": {
"far": 7.909038686193526e-06,
"time": "2023-09-28T11:43:34.343Z",
"group": "CBC",
"search": "AllSky",
"area_50": 6589.294408552872,
"area_90": 21314.701413782794,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.6965941447024745,
"HasMassGap": 0.029978948254810324,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "f59fecac57e723fb7f3c6983a852801d",
"classification": {
"BBH": 0.05679943119655021,
"BNS": 0.0,
"NSBH": 0.2520529597962401,
"Terrestrial": 0.6911476090072097
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-28T11:48:33Z",
"superevent_id": "S230928am",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:42.387405Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:42.387428Z",
"modified": "2023-09-28T20:54:42.392895Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3458,
"topic": "igwn.gwalert",
"uuid": "1e906529-545c-4ee7-b433-38a0e53c4adb",
"title": "S230927be - UPDATE",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230927be/files/bayestar.multiorder.fits,2",
"gracedb": "https://gracedb.ligo.org/superevents/S230927be/view/"
},
"event": {
"far": 3.167545842243851e-10,
"time": "2023-09-27T15:38:32.919Z",
"group": "CBC",
"search": "AllSky",
"area_50": 79.43127514131311,
"area_90": 297.8967881971385,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": true,
"skymap_hash": "9ed23184d5e51035185c9c41fe151943",
"classification": {
"BBH": 0.9996578739974026,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.00034212600259742043
},
"skymap_version": 2,
"central_frequency": null
},
"alert_type": "UPDATE",
"sequence_num": 4,
"time_created": "2023-09-28T03:51:50Z",
"superevent_id": "S230927be",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:47.967034Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:47.967057Z",
"modified": "2023-09-28T20:54:47.972252Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3459,
"topic": "igwn.gwalert",
"uuid": "a4e1019b-2aba-477e-98ac-ff60073282e2",
"title": "S230928bc - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230928bc/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230928bc/view/"
},
"event": {
"far": 4.00505e-06,
"time": "2023-09-28T15:09:31.522Z",
"group": "Burst",
"search": "AllSky",
"area_50": 641.84981517524,
"area_90": 2319.8076353636657,
"duration": 0.0723,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "0002ebb9023a4c1d09b2cd22524182d7",
"classification": {},
"skymap_version": 0,
"central_frequency": 22.691061
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-28T15:16:26Z",
"superevent_id": "S230928bc",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:53.764773Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:53.764796Z",
"modified": "2023-09-28T20:54:53.770023Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3460,
"topic": "igwn.gwalert",
"uuid": "a504ebf6-b88f-4ba6-9fa0-0fb6b57fc482",
"title": "S230928cb - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230928cb/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230928cb/view/"
},
"event": {
"far": 1.244823585036266e-12,
"time": "2023-09-28T21:58:27.138Z",
"group": "CBC",
"search": "AllSky",
"area_50": 840.9722325015895,
"area_90": 3109.5829555073733,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": true,
"skymap_hash": "e367cea5486fcf4229463da00344d5fb",
"classification": {
"BBH": 0.9999974225177207,
"BNS": 7.665973431633827e-21,
"NSBH": 6.525490613139925e-19,
"Terrestrial": 2.577482279275678e-06
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-09-28T21:58:54Z",
"superevent_id": "S230928cb",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T21:58:56.009922Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T21:58:56.009949Z",
"modified": "2023-09-28T21:58:56.018753Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 9503,
"topic": "lvk-users.beccatest",
"uuid": "fd8cfac4-d937-4b8d-b712-d38a89ccfff3",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"V1"
],
"time": [
1400534300
],
"range": 50.76638386183876
},
"message_text": "",
"published": "2024-05-23T21:18:27.366279Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-23T21:18:27.366299Z",
"modified": "2024-05-23T21:18:27.366307Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 9504,
"topic": "lvk-users.beccatest",
"uuid": "5638d6aa-dab4-4c55-8285-32fb375359d5",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"H1"
],
"time": [
1400534400
],
"range": 151.8465103036192
},
"message_text": "",
"published": "2024-05-23T21:19:58.703863Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-23T21:19:58.703883Z",
"modified": "2024-05-23T21:19:58.703891Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 9505,
"topic": "lvk-users.beccatest",
"uuid": "d77fabb8-ec81-4bd9-9272-e229ba38209b",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"L1"
],
"time": [
1400534400
],
"range": 165.26755104463544
},
"message_text": "",
"published": "2024-05-23T21:20:01.736690Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-23T21:20:01.736711Z",
"modified": "2024-05-23T21:20:01.736719Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 9506,
"topic": "lvk-users.beccatest",
"uuid": "f3a945f7-2089-44e2-a971-1be5aadbc045",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"V1"
],
"time": [
1400534400
],
"range": 50.75758955830898
},
"message_text": "",
"published": "2024-05-23T21:20:09.769050Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-23T21:20:09.769085Z",
"modified": "2024-05-23T21:20:09.769102Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 9507,
"topic": "lvk-users.beccatest",
"uuid": "f3679290-6454-42a7-b6e1-f1377b292b06",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"H1"
],
"time": [
1400534500
],
"range": 151.99727748236728
},
"message_text": "",
"published": "2024-05-23T21:21:41.126757Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-23T21:21:41.126790Z",
"modified": "2024-05-23T21:21:41.126805Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 9508,
"topic": "lvk-users.beccatest",
"uuid": "fe64b29e-5a26-4e41-8c9a-aad9f32b00b4",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"L1"
],
"time": [
1400534500
],
"range": 165.67672187835444
},
"message_text": "",
"published": "2024-05-23T21:21:41.140547Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-23T21:21:41.140627Z",
"modified": "2024-05-23T21:21:41.140663Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 9509,
"topic": "lvk-users.beccatest",
"uuid": "e8a51d61-7d21-47b9-8e8e-019fa90094fe",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"V1"
],
"time": [
1400534500
],
"range": 50.65868323900564
},
"message_text": "",
"published": "2024-05-23T21:21:46.177099Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-23T21:21:46.177133Z",
"modified": "2024-05-23T21:21:46.177150Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3472,
"topic": "igwn.gwalert",
"uuid": "0ba0710b-38da-448a-8162-e5db8c5e84dd",
"title": "S230929o - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230929o/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230929o/view/"
},
"event": {
"far": 2.116047324452582e-05,
"time": "2023-09-29T12:35:39.561Z",
"group": "CBC",
"search": "AllSky",
"area_50": 654.6490432647103,
"area_90": 2883.8129649455695,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.14521424422804638,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "5e713300143be7eeea2216867d561f82",
"classification": {
"BBH": 0.0,
"BNS": 0.0011838030008304726,
"NSBH": 0.00041918798080768833,
"Terrestrial": 0.9983970090183618
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-29T12:40:54Z",
"superevent_id": "S230929o",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-29T12:40:55.536826Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-29T12:40:55.536852Z",
"modified": "2023-09-29T12:40:55.544231Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3473,
"topic": "igwn.gwalert",
"uuid": "42ae53e1-567d-4581-9e58-3d313db44bfa",
"title": "S230929u - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230929u/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230929u/view/"
},
"event": {
"far": 1.70797e-05,
"time": "2023-09-29T14:37:44.785Z",
"group": "Burst",
"search": "BBH",
"area_50": 3388.2284457174806,
"area_90": 10639.725540341964,
"duration": 0.030397,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "2f4c79f7034a8e642a0cae9d9b74b0cb",
"classification": {},
"skymap_version": 0,
"central_frequency": 33.053394
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-09-29T14:38:55Z",
"superevent_id": "S230929u",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-29T14:38:56.423722Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-29T14:38:56.423747Z",
"modified": "2023-09-29T14:38:56.430868Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3474,
"topic": "igwn.gwalert",
"uuid": "f6edd9c4-208c-4cf6-86ba-d9476c4dbb26",
"title": "S230929u - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230929u/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230929u/view/"
},
"event": {
"far": 1.70797e-05,
"time": "2023-09-29T14:37:44.785Z",
"group": "Burst",
"search": "BBH",
"area_50": 3388.2284457174806,
"area_90": 10639.725540341964,
"duration": 0.030397,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "2f4c79f7034a8e642a0cae9d9b74b0cb",
"classification": {},
"skymap_version": 0,
"central_frequency": 33.053394
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-29T14:43:29Z",
"superevent_id": "S230929u",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-29T14:43:29.826360Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-29T14:43:29.826384Z",
"modified": "2023-09-29T14:43:29.831562Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3475,
"topic": "igwn.gwalert",
"uuid": "8e421282-18c2-4258-9ebe-a418b5ab46cb",
"title": "S230929ac - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230929ac/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230929ac/view/"
},
"event": {
"far": 1.22242e-05,
"time": "2023-09-29T16:27:57.059Z",
"group": "Burst",
"search": "BBH",
"area_50": 862.7938672770798,
"area_90": 2832.6160525876885,
"duration": 0.00783,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "cd33c4a4ab0a4b5f20134549b32d4148",
"classification": {},
"skymap_version": 0,
"central_frequency": 73.918869
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-09-29T16:28:52Z",
"superevent_id": "S230929ac",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-29T16:28:54.254324Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-29T16:28:54.254361Z",
"modified": "2023-09-29T16:28:54.262980Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3476,
"topic": "igwn.gwalert",
"uuid": "d0bb11a3-4626-4251-8064-1d226ddb191e",
"title": "S230929ac - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230929ac/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230929ac/view/"
},
"event": {
"far": 1.22242e-05,
"time": "2023-09-29T16:27:57.059Z",
"group": "Burst",
"search": "BBH",
"area_50": 862.7938672770798,
"area_90": 2832.6160525876885,
"duration": 0.00783,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "cd33c4a4ab0a4b5f20134549b32d4148",
"classification": {},
"skymap_version": 0,
"central_frequency": 73.918869
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-29T16:33:27Z",
"superevent_id": "S230929ac",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-29T16:33:28.630315Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-29T16:33:28.630350Z",
"modified": "2023-09-29T16:33:28.637898Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 6311,
"topic": "gcn.circular",
"uuid": "82827f6a-979e-47ef-998b-54a3302e6399",
"title": "IceCube-240327B: Upper limits from a search for additional neutrino events in IceCube",
"submitter": "Hop gcn.circular",
"authors": "Alicia Mand at IceCube/UW-Madison <aemand@wisc.edu>",
"data": {
"date": "24/04/01 17:47:36 GMT",
"from": "Alicia Mand at IceCube/UW-Madison <aemand@wisc.edu>",
"urls": {
"gcn_circular": "https://gcn.nasa.gov/circulars/36005"
},
"title": "GCN CIRCULAR",
"number": "36005",
"subject": "IceCube-240327B: Upper limits from a search for additional neutrino events in IceCube"
},
"message_text": "The IceCube Collaboration (http://icecube.wisc.edu/) reports:\n\nIceCube has performed a search [1] for additional track-like muon neutrino events arriving from the direction of IceCube-240327B (https://gcn.nasa.gov/circulars/35984) in a time range of 1000 seconds centered on the alert event time (2024-03-27 16:04:10.470 UTC to 2024-03-27 16:20:50.470 UTC) during which IceCube was collecting good quality data. Excluding the event that prompted the alert, zero track-like events are found within the 90% containment region of IceCube-240327B. The IceCube sensitivity to neutrino point sources with an E^-2.5 spectrum (E^2 dN/dE at 1 TeV) within the locations spanned by the 90% spatial containment region of IceCube-240327B ranges from 1.4e-01 to 1.5e-01 GeV cm^-2 in a 1000 second time window. 90% of events IceCube would detect from a source at this declination with an E^-2.5 spectrum have energies in the approximate energy range between 3e+02 GeV and 2e+05 GeV.\n\nA subsequent search was performed including 2 days of data centered on the alert event time (2024-03-26 16:12:30.470 UTC to 2024-03-28 16:12:30.470 UTC). In this case, we report a p-value of 1.00, consistent with no significant excess of track events. The IceCube sensitivity to neutrino point sources with an E^-2.5 spectrum (E^2 dN/dE at 1 TeV) within the locations spanned by the 90% spatial containment region of IceCube-240327B is 1.6e-01 GeV cm^-2 in a 2 day time window.\n\nThe IceCube Neutrino Observatory is a cubic-kilometer neutrino detector operating at the geographic South Pole, Antarctica. The IceCube realtime alert point of contact can be reached at roc@icecube.wisc.edu.\n\n[1] IceCube Collaboration, R. Abbasi et al., ApJ 910 4 (2021)\n\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/36005.",
"published": "2024-04-01T17:47:43.631715Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2024-04-01T17:47:43.631731Z",
"modified": "2024-04-01T17:47:43.637665Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3486,
"topic": "igwn.gwalert",
"uuid": "eb591c25-00d8-4f34-8260-fa7325b77f80",
"title": "S230930n - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230930n/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230930n/view/"
},
"event": {
"far": 2.017916267504916e-05,
"time": "2023-09-30T05:10:16.541Z",
"group": "CBC",
"search": "AllSky",
"area_50": 696.1940787026631,
"area_90": 2544.7383322802584,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.3778837661243339,
"HasRemnant": 0.0091340559816841
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "ccbd6771a4bb384a604de5683d548bed",
"classification": {
"BBH": 0.0,
"BNS": 0.016465632957837636,
"NSBH": 0.051453257338562625,
"Terrestrial": 0.9320811097035997
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-09-30T05:10:42Z",
"superevent_id": "S230930n",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-30T05:10:44.174726Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-30T05:10:44.174750Z",
"modified": "2023-09-30T05:10:44.183418Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 9510,
"topic": "lvk-users.beccatest",
"uuid": "9afa2f71-fa68-4841-aecd-5879bfb9fbf8",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"L1"
],
"time": [
1400534600
],
"range": 165.63257796226048
},
"message_text": "",
"published": "2024-05-23T21:23:19.455230Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-23T21:23:19.455250Z",
"modified": "2024-05-23T21:23:19.455259Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3503,
"topic": "igwn.gwalert",
"uuid": "b6b2f315-6381-4835-a593-380b935c180d",
"title": "S230930bp - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230930bp/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230930bp/view/"
},
"event": {
"far": 1.579023228259757e-05,
"time": "2023-09-30T16:18:24.744Z",
"group": "CBC",
"search": "AllSky",
"area_50": 70.51378016094444,
"area_90": 5202.781306664025,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.6097332945383659,
"HasMassGap": 0.3636248839022894,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "111d7b3bbfcb745f58d7eecf8303598c",
"classification": {
"BBH": 0.019233656398237507,
"BNS": 0.0,
"NSBH": 0.06146835722540324,
"Terrestrial": 0.9192979863763593
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-09-30T16:18:50Z",
"superevent_id": "S230930bp",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-30T16:18:50.823693Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-30T16:18:50.823720Z",
"modified": "2023-09-30T16:18:50.836249Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3504,
"topic": "igwn.gwalert",
"uuid": "596b3fe1-941b-44a9-a277-0516f35d5ae3",
"title": "S230930bp - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230930bp/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230930bp/view/"
},
"event": {
"far": 1.579023228259757e-05,
"time": "2023-09-30T16:18:24.744Z",
"group": "CBC",
"search": "AllSky",
"area_50": 70.51378016094444,
"area_90": 5202.781306664025,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.6097332945383659,
"HasMassGap": 0.3636248839022894,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "111d7b3bbfcb745f58d7eecf8303598c",
"classification": {
"BBH": 0.019233656398237507,
"BNS": 0.0,
"NSBH": 0.06146835722540324,
"Terrestrial": 0.9192979863763593
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-30T16:23:24Z",
"superevent_id": "S230930bp",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-30T16:23:25.886589Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-30T16:23:25.886616Z",
"modified": "2023-09-30T16:23:25.892622Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3505,
"topic": "igwn.gwalert",
"uuid": "7e61561c-6f57-489c-be69-b644bce21b14",
"title": "S230930bt - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230930bt/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230930bt/view/"
},
"event": {
"far": 1.702712870610412e-05,
"time": "2023-09-30T17:05:08.110Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1155.4975260444742,
"area_90": 3923.697791362206,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.3311659451659451,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "d39d5c524efeab666194da0a69320f03",
"classification": {
"BBH": 0.0,
"BNS": 0.10095872778747528,
"NSBH": 0.0,
"Terrestrial": 0.8990412722125247
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-09-30T17:05:33Z",
"superevent_id": "S230930bt",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-30T17:05:34.680023Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-30T17:05:34.680050Z",
"modified": "2023-09-30T17:05:34.688491Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3506,
"topic": "igwn.gwalert",
"uuid": "ed85f36b-f014-4829-a4a9-e1809185ccbb",
"title": "S230930bt - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230930bt/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230930bt/view/"
},
"event": {
"far": 1.702712870610412e-05,
"time": "2023-09-30T17:05:08.110Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1155.4975260444742,
"area_90": 3923.697791362206,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.3311659451659451,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "d39d5c524efeab666194da0a69320f03",
"classification": {
"BBH": 0.0,
"BNS": 0.10095872778747528,
"NSBH": 0.0,
"Terrestrial": 0.8990412722125247
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-30T17:10:10Z",
"superevent_id": "S230930bt",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-30T17:10:11.904600Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-30T17:10:11.904625Z",
"modified": "2023-09-30T17:10:11.910461Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3507,
"topic": "igwn.gwalert",
"uuid": "d624e3ec-79ea-4d08-869e-0cab44a90909",
"title": "S230930bz - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230930bz/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230930bz/view/"
},
"event": {
"far": 1.734167997711663e-05,
"time": "2023-09-30T18:19:05.711Z",
"group": "CBC",
"search": "AllSky",
"area_50": 437.5342684191465,
"area_90": 1638.930665686106,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.6210313367919233,
"HasMassGap": 0.22698131896736015,
"HasRemnant": 0.0862741455549606
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "1166c20ce96c5a7e71d2dfc70a228766",
"classification": {
"BBH": 0.0006415690991012615,
"BNS": 0.0,
"NSBH": 0.0023877488714373805,
"Terrestrial": 0.9969706820294614
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-09-30T18:19:29Z",
"superevent_id": "S230930bz",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-30T18:19:31.214511Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-30T18:19:31.214536Z",
"modified": "2023-09-30T18:19:31.222721Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3508,
"topic": "igwn.gwalert",
"uuid": "d01b9fa4-f1a0-42f3-acc1-07c2d5ab37df",
"title": "S230930bz - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230930bz/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230930bz/view/"
},
"event": {
"far": 1.734167997711663e-05,
"time": "2023-09-30T18:19:05.711Z",
"group": "CBC",
"search": "AllSky",
"area_50": 437.5342684191465,
"area_90": 1638.930665686106,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.6210313367919233,
"HasMassGap": 0.22698131896736015,
"HasRemnant": 0.0862741455549606
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "1166c20ce96c5a7e71d2dfc70a228766",
"classification": {
"BBH": 0.0006415690991012615,
"BNS": 0.0,
"NSBH": 0.0023877488714373805,
"Terrestrial": 0.9969706820294614
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-30T18:24:04Z",
"superevent_id": "S230930bz",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-30T18:24:05.655462Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-30T18:24:05.655487Z",
"modified": "2023-09-30T18:24:05.661141Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 4150,
"topic": "igwn.gwalert",
"uuid": "6a2fb688-76cb-4532-946f-338f67ece940",
"title": "S231025ay - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231025ay/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231025ay/view/"
},
"event": {
"far": 2.43813178713026e-06,
"time": "2023-10-25T15:25:57.250Z",
"group": "CBC",
"search": "AllSky",
"area_50": 2179.6455966134004,
"area_90": 8664.867593160086,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.0027935157007288342,
"HasMassGap": 0.040183408095172804,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "9daf58ef9ab6e2dfe8a41de19bc583cc",
"classification": {
"BBH": 0.4697011373182608,
"BNS": 0.0,
"NSBH": 0.05844241307729725,
"Terrestrial": 0.47185644960444195
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-10-25T15:26:21Z",
"superevent_id": "S231025ay",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-25T15:26:24.047235Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-25T15:26:24.047259Z",
"modified": "2023-10-25T15:26:24.053601Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3520,
"topic": "igwn.gwalert",
"uuid": "f1584407-2db6-46ba-a488-9ae30bc65dbf",
"title": "S231001b - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231001b/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231001b/view/"
},
"event": {
"far": 1.36979e-05,
"time": "2023-10-01T00:48:28.806Z",
"group": "Burst",
"search": "AllSky",
"area_50": 863.2135140996853,
"area_90": 4115.266565881654,
"duration": 0.044111,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "e0530450ec5f9b0803d9dc7219891967",
"classification": {},
"skymap_version": 0,
"central_frequency": 300.565186
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-10-01T00:55:22Z",
"superevent_id": "S231001b",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-01T00:55:24.246939Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-01T00:55:24.246981Z",
"modified": "2023-10-01T00:55:24.254107Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3521,
"topic": "igwn.gwalert",
"uuid": "df216633-a461-42eb-be92-e354b4ace375",
"title": "S231001j - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231001j/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231001j/view/"
},
"event": {
"far": 1.22533e-05,
"time": "2023-10-01T02:56:47.492Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1249.0787674855192,
"area_90": 5263.839919353136,
"duration": 0.004105,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "24450a0bd06d0f9affa6a2fbff6a4ed2",
"classification": {},
"skymap_version": 0,
"central_frequency": 560.752014
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-10-01T02:58:46Z",
"superevent_id": "S231001j",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-01T02:58:47.746787Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-01T02:58:47.746811Z",
"modified": "2023-10-01T02:58:47.755752Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3522,
"topic": "igwn.gwalert",
"uuid": "c12b4e9a-b7fb-42df-b3f2-3267557470a5",
"title": "S231001j - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231001j/files/cwb.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S231001j/view/"
},
"event": {
"far": 3.57213e-06,
"time": "2023-10-01T02:56:47.487Z",
"group": "Burst",
"search": "AllSky",
"area_50": 263.5382045963064,
"area_90": 893.0084385046816,
"duration": 0.006844,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "2889ce4b1f77cd56dd1fddf4f7bc3c30",
"classification": {},
"skymap_version": 1,
"central_frequency": 568.969482
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-10-01T03:03:21Z",
"superevent_id": "S231001j",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-01T03:03:22.508604Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-01T03:03:22.508629Z",
"modified": "2023-10-01T03:03:22.514100Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3523,
"topic": "igwn.gwalert",
"uuid": "225317ff-3ab2-4a1b-b523-77728e4d5ec0",
"title": "S231001v - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231001v/files/olib.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231001v/view/"
},
"event": {
"far": 1.1300254648054043e-06,
"time": "2023-10-01T05:36:11.607Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1977.3758281175094,
"area_90": 15037.204594425873,
"duration": 0.009369767352456726,
"pipeline": "oLIB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "92b64cf31c769cd913f3ccf1e2ff90bd",
"classification": {},
"skymap_version": 0,
"central_frequency": 783.651011691969
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-10-01T05:58:13Z",
"superevent_id": "S231001v",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-01T05:58:14.683016Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-01T05:58:14.683040Z",
"modified": "2023-10-01T05:58:14.693274Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3524,
"topic": "hermes.message",
"uuid": "1a0dcf1b-b749-4072-999e-1cdbdf54188f",
"title": "INTEGRAL follow-up of S231001v",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S231001v at 2023-10-01T05:36:11.000\n\n\nSPI-ACS excesses:\nat T0+16.11 FAP = 0.12\nat T0+-38.52 FAP = 0.603\nat T0+285.78 FAP = 0.945\n\n\n\n\nnext break in data in 35 hr: 2023-10-02T16:38:11, for about 9 hr",
"published": "2023-10-01T06:02:20.365499Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-10-01T06:02:20.365520Z",
"modified": "2023-10-01T06:02:20.371018Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3525,
"topic": "igwn.gwalert",
"uuid": "812c3e8f-5151-4d89-9b7d-b93fbab6c96c",
"title": "S231001v - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231001v/files/olib.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231001v/view/"
},
"event": {
"far": 1.1300254648054043e-06,
"time": "2023-10-01T05:36:11.607Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1977.3758281175094,
"area_90": 15037.204594425873,
"duration": 0.009369767352456726,
"pipeline": "oLIB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "92b64cf31c769cd913f3ccf1e2ff90bd",
"classification": {},
"skymap_version": 0,
"central_frequency": 783.651011691969
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-10-01T06:02:47Z",
"superevent_id": "S231001v",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-01T06:02:48.539863Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-01T06:02:48.539885Z",
"modified": "2023-10-01T06:02:48.545438Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3526,
"topic": "igwn.gwalert",
"uuid": "45368c72-438f-42db-8288-c573da0af6cc",
"title": "S231001y - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231001y/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231001y/view/"
},
"event": {
"far": 2.17098e-05,
"time": "2023-10-01T07:01:33.020Z",
"group": "Burst",
"search": "BBH",
"area_50": 824.186359597366,
"area_90": 3360.531755425513,
"duration": 0.007497,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "96aa879b5bee9620cdd850fbd79c9474",
"classification": {},
"skymap_version": 0,
"central_frequency": 153.121414
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-10-01T07:05:25Z",
"superevent_id": "S231001y",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-01T07:05:26.127444Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-01T07:05:26.127478Z",
"modified": "2023-10-01T07:05:26.136168Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3527,
"topic": "igwn.gwalert",
"uuid": "bf9f08e8-22f9-4b43-b33f-618fcd4ad961",
"title": "S231001y - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231001y/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231001y/view/"
},
"event": {
"far": 2.17098e-05,
"time": "2023-10-01T07:01:33.020Z",
"group": "Burst",
"search": "BBH",
"area_50": 824.186359597366,
"area_90": 3360.531755425513,
"duration": 0.007497,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "96aa879b5bee9620cdd850fbd79c9474",
"classification": {},
"skymap_version": 0,
"central_frequency": 153.121414
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-10-01T07:09:59Z",
"superevent_id": "S231001y",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-01T07:10:00.338105Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-01T07:10:00.338139Z",
"modified": "2023-10-01T07:10:00.350137Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 4456,
"topic": "igwn.gwalert",
"uuid": "23d01b97-214b-41e7-92d0-6ba867da6027",
"title": "S231109p - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231109p/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231109p/view/"
},
"event": {
"far": 3.78975e-06,
"time": "2023-11-09T05:29:01.246Z",
"group": "Burst",
"search": "BBH",
"area_50": 4491.899589170165,
"area_90": 13798.826820916796,
"duration": 0.040923,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "0cd212217ea484d935d8a569c0ac3adf",
"classification": {},
"skymap_version": 0,
"central_frequency": 25.366138
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-11-09T05:34:48Z",
"superevent_id": "S231109p",
"external_coinc": null
},
"message_text": "",
"published": "2023-11-09T05:34:49.097291Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-11-09T05:34:49.097318Z",
"modified": "2023-11-09T05:34:49.102422Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3540,
"topic": "gcn.circular",
"uuid": "31d88f3d-1e48-43ca-95c0-027dacbc03ae",
"title": "LIGO/Virgo/KAGRA S231001aq: Updated Sky localization",
"submitter": "Hop gcn.circular",
"authors": "Colm Talbot at University of Chicago <talbotcolm@gmail.com>",
"data": {
"date": "23/10/01 22:41:36 GMT",
"from": "Colm Talbot at University of Chicago <talbotcolm@gmail.com>",
"urls": {
"gcn": "https://gcn.nasa.gov/circulars/34788"
},
"title": "GCN CIRCULAR",
"number": "34788",
"subject": "LIGO/Virgo/KAGRA S231001aq: 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 S231001aq (GCN Circular 34785). 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/S231001aq\n\nFor the Bilby.multiorder.fits,0 sky map, the 90% credible region is 3323 deg2. Marginalized over the whole sky, the a posteriori luminosity distance estimate is 2567 +/- 958 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\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/34788.",
"published": "2023-10-01T22:41:45.904855Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-10-01T22:41:45.904888Z",
"modified": "2023-10-01T22:41:45.910862Z",
"nonlocalizedevents": [
{
"event_id": "S231001a"
}
],
"targets": []
},
{
"id": 3541,
"topic": "igwn.gwalert",
"uuid": "13d57d53-90ac-4277-8bc6-e9f74785db62",
"title": "S231002z - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231002z/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231002z/view/"
},
"event": {
"far": 1.79352e-05,
"time": "2023-10-02T08:57:55.339Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1121.296310002119,
"area_90": 4169.610829409076,
"duration": 0.010751,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "71e5f1603c18ddaa1ae9a8633e652ff4",
"classification": {},
"skymap_version": 0,
"central_frequency": 1916.669189
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-10-02T09:00:00Z",
"superevent_id": "S231002z",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-02T09:00:01.360099Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-02T09:00:01.360125Z",
"modified": "2023-10-02T09:00:01.424003Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3542,
"topic": "igwn.gwalert",
"uuid": "8277c39a-ea9c-4cb0-908a-eca8c0d5beb1",
"title": "S231002z - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231002z/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231002z/view/"
},
"event": {
"far": 1.79352e-05,
"time": "2023-10-02T08:57:55.339Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1121.296310002119,
"area_90": 4169.610829409076,
"duration": 0.010751,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "71e5f1603c18ddaa1ae9a8633e652ff4",
"classification": {},
"skymap_version": 0,
"central_frequency": 1916.669189
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-10-02T09:04:34Z",
"superevent_id": "S231002z",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-02T09:04:35.169413Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-02T09:04:35.169437Z",
"modified": "2023-10-02T09:04:35.176029Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3543,
"topic": "igwn.gwalert",
"uuid": "4ed532a9-cc2f-472e-8b0b-9e8f5e49e48f",
"title": "S231002ay - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231002ay/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231002ay/view/"
},
"event": {
"far": 1.8396e-05,
"time": "2023-10-02T13:46:32.809Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1307.6194992389983,
"area_90": 5546.472054377997,
"duration": 0.032925,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "db3d794f5f6faac387aa9cbde0172c26",
"classification": {},
"skymap_version": 0,
"central_frequency": 25.852566
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-10-02T13:48:31Z",
"superevent_id": "S231002ay",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-02T13:48:32.118712Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-02T13:48:32.118736Z",
"modified": "2023-10-02T13:48:32.127503Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 4153,
"topic": "igwn.gwalert",
"uuid": "55859439-9fe0-46b7-8e32-37d61c46d40c",
"title": "S231025az - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231025az/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231025az/view/"
},
"event": {
"far": 1.748815884639043e-05,
"time": "2023-10-25T16:03:30.074Z",
"group": "CBC",
"search": "AllSky",
"area_50": 2745.3295134857276,
"area_90": 27360.972833884047,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.022579365079365078,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "e2d14b9d2df719b7fb9c280a637bb4b6",
"classification": {
"BBH": 0.0,
"BNS": 0.1726418138037788,
"NSBH": 0.0,
"Terrestrial": 0.8273581861962211
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-10-25T16:03:54Z",
"superevent_id": "S231025az",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-25T16:03:55.592367Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-25T16:03:55.592391Z",
"modified": "2023-10-25T16:03:55.599717Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 4154,
"topic": "igwn.gwalert",
"uuid": "8e298b5c-7b4f-43ca-87cc-c4c87c0b9be7",
"title": "S231025az - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231025az/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231025az/view/"
},
"event": {
"far": 1.748815884639043e-05,
"time": "2023-10-25T16:03:30.074Z",
"group": "CBC",
"search": "AllSky",
"area_50": 2745.3295134857276,
"area_90": 27360.972833884047,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.022579365079365078,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "e2d14b9d2df719b7fb9c280a637bb4b6",
"classification": {
"BBH": 0.0,
"BNS": 0.1726418138037788,
"NSBH": 0.0,
"Terrestrial": 0.8273581861962211
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-10-25T16:08:28Z",
"superevent_id": "S231025az",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-25T16:08:30.655714Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-25T16:08:30.655751Z",
"modified": "2023-10-25T16:08:30.708220Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 4270,
"topic": "igwn.gwalert",
"uuid": "526d00f5-c739-4af7-b97d-7724f8bfe4c5",
"title": "S231029ba - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231029ba/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231029ba/view/"
},
"event": {
"far": 1.774698e-05,
"time": "2023-10-29T21:58:52.250Z",
"group": "CBC",
"search": "AllSky",
"area_50": 635.3452894248534,
"area_90": 2206.502993260158,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "a47895a8db6cb92288615f88b9d5ae1e",
"classification": {
"BBH": 0.028755287,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.971244713
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-10-29T21:59:22Z",
"superevent_id": "S231029ba",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-31T23:28:31.747335Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-31T23:28:31.747361Z",
"modified": "2023-10-31T23:28:31.752543Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 11770,
"topic": "lvk-users.beccatest",
"uuid": "ba23c477-4b95-4146-b496-716837508dc7",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"V1"
],
"time": [
1400630000
],
"range": 52.77475811030463
},
"message_text": "",
"published": "2024-05-24T23:53:26.937453Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-24T23:53:26.937475Z",
"modified": "2024-05-24T23:53:26.937485Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3557,
"topic": "igwn.gwalert",
"uuid": "f183c876-d35c-4409-8d9a-19b53ceedc60",
"title": "S231002bl - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231002bl/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231002bl/view/"
},
"event": {
"far": 4.3922e-06,
"time": "2023-10-02T17:46:11.672Z",
"group": "Burst",
"search": "BBH",
"area_50": 1585.4256958038945,
"area_90": 5290.907139411197,
"duration": 0.027203,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "8b7c87d038f9768e80ab269afab86220",
"classification": {},
"skymap_version": 0,
"central_frequency": 36.434456
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-10-02T17:51:55Z",
"superevent_id": "S231002bl",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-02T17:51:55.619080Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-02T17:51:55.619103Z",
"modified": "2023-10-02T17:51:55.624578Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3558,
"topic": "gcn.circular",
"uuid": "fc0de195-254c-4263-b53d-dedfa6f4928d",
"title": "GRB 230827B: 10.4m GTC spectroscopic redshift",
"submitter": "Hop gcn.circular",
"authors": "Youdong HU at IAA-CSIC <huyoudong072@hotmail.com>",
"data": {
"date": "23/10/02 20:22:32 GMT",
"from": "Youdong HU at IAA-CSIC <huyoudong072@hotmail.com>",
"urls": {
"gcn": "https://gcn.nasa.gov/circulars/34789"
},
"title": "GCN CIRCULAR",
"number": "34789",
"subject": "GRB 230827B: 10.4m GTC spectroscopic redshift"
},
"message_text": "R. Sanchez-Ramirez, A. J. Castro-Tirado, Y.-D. Hu, S. Guziy, M.D. Caballero-Garcia, S.-Y. Wu, E. Fernandez-Garcia, and I. Perez-Garcia (IAA-CSIC), S. Geier (GTC, IAC), S. B. Pandey (ARIES) and B.-B. Zhang (NJU) on behalf of a larger collaboration, report:\n\nFollowing the detection of AT 2023qxj by ZTF (Li et al. GCNC 34574), GIT (Swain et al. GCN 34576), and AKO (Odeh et al. GCN 34579) as the likely afterglow of Fermi GRB 230827B (Hamburg et al. GCN 34584), also detected in gamma-rays by VLUSAT-2 (Dafcikova et al. GCNC 34585), CALET (Tamura et al. GCNC 34593) and Globug/ISS (Kerr et al. GCNC 34604), we triggered the 10.4m Gran Telescopio de Canarias (GTC) equipped with Optical System for Imaging and low-Intermediate-Resolution Integrated Spectroscopy (OSIRIS) in La Palma (Spain), starting on Aug 29, 1 UT (~43 h after the Fermi trigger). Spectroscopy was obtained with both the R1000B (3x1200s) and R1000R (1x900s) grisms, covering the 363-1000 nm spectral range. A red continuum is noticeable, and the GTC spectrum clearly shows the Mg II doublet and Mg I absorption lines, implying a redshift of z=0.887, and thus confirming AT 2023qxj as the optical afterglow of GRB 230827B.\n\nWe thank the staff at GTC for their excellent support.\n\n\nView this GCN Circular online at https://gcn.nasa.gov/circulars/34789.",
"published": "2023-10-02T20:22:47.488222Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-10-02T20:22:47.488254Z",
"modified": "2023-10-02T20:22:47.503825Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3559,
"topic": "igwn.gwalert",
"uuid": "eda0d478-343f-404f-8ca1-18e5b8a7c29b",
"title": "S231002bt - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231002bt/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231002bt/view/"
},
"event": {
"far": 6.03912e-06,
"time": "2023-10-02T20:21:39.612Z",
"group": "Burst",
"search": "AllSky",
"area_50": 920.7051287966502,
"area_90": 3380.674802910581,
"duration": 0.011246,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "7abc47886bbd06bdd98bd63328d2096c",
"classification": {},
"skymap_version": 0,
"central_frequency": 1713.262695
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-10-02T20:23:08Z",
"superevent_id": "S231002bt",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-02T20:23:09.404785Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-02T20:23:09.404809Z",
"modified": "2023-10-02T20:23:09.410174Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3560,
"topic": "igwn.gwalert",
"uuid": "3b446be9-18ab-4bc6-b25f-65ae561285a2",
"title": "S231002bt - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231002bt/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231002bt/view/"
},
"event": {
"far": 6.03912e-06,
"time": "2023-10-02T20:21:39.612Z",
"group": "Burst",
"search": "AllSky",
"area_50": 920.7051287966502,
"area_90": 3380.674802910581,
"duration": 0.011246,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "7abc47886bbd06bdd98bd63328d2096c",
"classification": {},
"skymap_version": 0,
"central_frequency": 1713.262695
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-10-02T20:27:42Z",
"superevent_id": "S231002bt",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-02T20:27:42.962742Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-02T20:27:42.962770Z",
"modified": "2023-10-02T20:27:42.968604Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3561,
"topic": "igwn.gwalert",
"uuid": "c234f345-339e-422e-911f-f9819ec86e7c",
"title": "S231002bv - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231002bv/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231002bv/view/"
},
"event": {
"far": 1.66887e-05,
"time": "2023-10-02T20:54:28.927Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1300.6953266660062,
"area_90": 5802.666439578706,
"duration": 0.042259,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "b3eafd279586546f909709df075b7830",
"classification": {},
"skymap_version": 0,
"central_frequency": 633.322693
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-10-02T20:58:39Z",
"superevent_id": "S231002bv",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-02T20:58:41.065417Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-02T20:58:41.065453Z",
"modified": "2023-10-02T20:58:41.075527Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3562,
"topic": "igwn.gwalert",
"uuid": "7a14c7f9-9a87-4a2b-98a2-1e4c11a1a64c",
"title": "S231002bv - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231002bv/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231002bv/view/"
},
"event": {
"far": 1.66887e-05,
"time": "2023-10-02T20:54:28.927Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1300.6953266660062,
"area_90": 5802.666439578706,
"duration": 0.042259,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "b3eafd279586546f909709df075b7830",
"classification": {},
"skymap_version": 0,
"central_frequency": 633.322693
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-10-02T21:03:13Z",
"superevent_id": "S231002bv",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-02T21:03:15.520745Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-02T21:03:15.520769Z",
"modified": "2023-10-02T21:03:15.526379Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 4271,
"topic": "igwn.gwalert",
"uuid": "383410d3-36ea-4b24-a679-14338ee5c830",
"title": "S231029y - INITIAL",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231029y/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S231029y/view/"
},
"event": {
"far": 2.163744299447657e-10,
"time": "2023-10-29T11:15:08.754Z",
"group": "CBC",
"search": "AllSky",
"area_50": 8060.576168608048,
"area_90": 24218.657426213435,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"L1"
],
"significant": true,
"skymap_hash": "5c7972c5d05f0816869a7a1537eaa57d",
"classification": {
"BBH": 0.9997667878420416,
"BNS": 7.392759654183019e-30,
"NSBH": 6.178110571799201e-28,
"Terrestrial": 0.00023321215795835126
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "INITIAL",
"sequence_num": 2,
"time_created": "2023-10-29T13:56:55Z",
"superevent_id": "S231029y",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-31T23:28:38.009397Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-31T23:28:38.009425Z",
"modified": "2023-10-31T23:28:38.015410Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 11782,
"topic": "lvk-users.beccatest",
"uuid": "4046ae81-a380-4c1b-bb40-6d3efa5c23e3",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"V1"
],
"time": [
1400630400
],
"range": 53.04958692919471
},
"message_text": "",
"published": "2024-05-25T00:00:07.303640Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-25T00:00:07.303653Z",
"modified": "2024-05-25T00:00:07.303658Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3573,
"topic": "igwn.gwalert",
"uuid": "434f3dfb-cb32-4c12-92a5-6eed341cc7be",
"title": "S231003ab - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231003ab/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231003ab/view/"
},
"event": {
"far": 1.821981641114689e-05,
"time": "2023-10-03T07:34:14.798Z",
"group": "CBC",
"search": "AllSky",
"area_50": 5574.588391492572,
"area_90": 18910.964413898015,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.9440733587572773,
"HasMassGap": 0.05584942834942835,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "e15234f05dc92de0c0b454924024e696",
"classification": {
"BBH": 0.07201288337249566,
"BNS": 0.0,
"NSBH": 0.20706987613106814,
"Terrestrial": 0.7209172404964361
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-10-03T07:34:38Z",
"superevent_id": "S231003ab",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-03T07:34:40.469143Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-03T07:34:40.469184Z",
"modified": "2023-10-03T07:34:40.479666Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3574,
"topic": "igwn.gwalert",
"uuid": "feaf9d57-1e2f-484a-9ef5-bccd2799f516",
"title": "S231003ab - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231003ab/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231003ab/view/"
},
"event": {
"far": 1.821981641114689e-05,
"time": "2023-10-03T07:34:14.798Z",
"group": "CBC",
"search": "AllSky",
"area_50": 5574.588391492572,
"area_90": 18910.964413898015,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.9440733587572773,
"HasMassGap": 0.05584942834942835,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "e15234f05dc92de0c0b454924024e696",
"classification": {
"BBH": 0.07201288337249566,
"BNS": 0.0,
"NSBH": 0.20706987613106814,
"Terrestrial": 0.7209172404964361
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-10-03T07:39:16Z",
"superevent_id": "S231003ab",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-03T07:39:17.700475Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-03T07:39:17.700501Z",
"modified": "2023-10-03T07:39:17.705949Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3575,
"topic": "igwn.gwalert",
"uuid": "7bb5a38d-8a7c-462e-b1d5-f799088a2b26",
"title": "S231003aj - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231003aj/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231003aj/view/"
},
"event": {
"far": 2.25143316705189e-05,
"time": "2023-10-03T09:43:38.695Z",
"group": "CBC",
"search": "AllSky",
"area_50": 355.91296142236047,
"area_90": 1785.1775833641523,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "7c04031ca052da5c8c599286519f90f3",
"classification": {
"BBH": 0.05670023900140498,
"BNS": 8.043145118152987e-16,
"NSBH": 5.252663450580957e-14,
"Terrestrial": 0.9432997609985417
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-10-03T09:44:05Z",
"superevent_id": "S231003aj",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-03T09:44:06.885323Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-03T09:44:06.885350Z",
"modified": "2023-10-03T09:44:06.898086Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3576,
"topic": "igwn.gwalert",
"uuid": "b624467f-f68c-4a09-8e19-86e8efae7c68",
"title": "S231003aj - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231003aj/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231003aj/view/"
},
"event": {
"far": 2.25143316705189e-05,
"time": "2023-10-03T09:43:38.695Z",
"group": "CBC",
"search": "AllSky",
"area_50": 355.91296142236047,
"area_90": 1785.1775833641523,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "7c04031ca052da5c8c599286519f90f3",
"classification": {
"BBH": 0.05670023900140498,
"BNS": 8.043145118152987e-16,
"NSBH": 5.252663450580957e-14,
"Terrestrial": 0.9432997609985417
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-10-03T09:48:43Z",
"superevent_id": "S231003aj",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-03T09:48:44.737402Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-03T09:48:44.737437Z",
"modified": "2023-10-03T09:48:44.747314Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3577,
"topic": "igwn.gwalert",
"uuid": "b2166910-77e0-492f-84df-c64df690755f",
"title": "S231003al - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231003al/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231003al/view/"
},
"event": {
"far": 2.123093433740415e-05,
"time": "2023-10-03T10:16:42.061Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1319.999080505863,
"area_90": 4636.258096146487,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.012106583072100312,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "1702740c076f0eb9bcca1dfa3f810931",
"classification": {
"BBH": 0.06146359583084204,
"BNS": 2.634964189114776e-14,
"NSBH": 1.8136196077931346e-12,
"Terrestrial": 0.938536404167318
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-10-03T10:17:05Z",
"superevent_id": "S231003al",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-03T10:17:07.560823Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-03T10:17:07.560859Z",
"modified": "2023-10-03T10:17:07.572203Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3578,
"topic": "igwn.gwalert",
"uuid": "51642ba9-d9bf-46cc-ba97-961283b30fb6",
"title": "S231003al - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231003al/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231003al/view/"
},
"event": {
"far": 2.123093433740415e-05,
"time": "2023-10-03T10:16:42.061Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1319.999080505863,
"area_90": 4636.258096146487,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.012106583072100312,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "1702740c076f0eb9bcca1dfa3f810931",
"classification": {
"BBH": 0.06146359583084204,
"BNS": 2.634964189114776e-14,
"NSBH": 1.8136196077931346e-12,
"Terrestrial": 0.938536404167318
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-10-03T10:21:40Z",
"superevent_id": "S231003al",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-03T10:21:41.310132Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-03T10:21:41.310162Z",
"modified": "2023-10-03T10:21:41.322084Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 4157,
"topic": "igwn.gwalert",
"uuid": "0844f8cb-0caa-4502-8a97-1707576e20b7",
"title": "S231025be - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S231025be/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S231025be/view/"
},
"event": {
"far": 9.65148e-06,
"time": "2023-10-25T18:47:42.968Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1173.3325160052116,
"area_90": 4448.256319619184,
"duration": 0.013201,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "8af087329432bccdfb6db1a34f0d51ac",
"classification": {},
"skymap_version": 0,
"central_frequency": 767.170166
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-10-25T18:55:57Z",
"superevent_id": "S231025be",
"external_coinc": null
},
"message_text": "",
"published": "2023-10-25T18:55:58.576752Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-10-25T18:55:58.576790Z",
"modified": "2023-10-25T18:55:58.582778Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 9531,
"topic": "lvk-users.beccatest",
"uuid": "2b9c9486-b369-4f6d-bd0b-a2b764d90e95",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"L1"
],
"time": [
1400535300
],
"range": 167.07966151850064
},
"message_text": "",
"published": "2024-05-23T21:35:00.656019Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-23T21:35:00.656039Z",
"modified": "2024-05-23T21:35:00.656047Z",
"nonlocalizedevents": [],
"targets": []
}
]
}