HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept
{
"count": 11124,
"next": "https://hermes.lco.global/api/v0/nonlocalizedeventsequence/?format=api&limit=100&offset=7400&ordering=sequence_number",
"previous": "https://hermes.lco.global/api/v0/nonlocalizedeventsequence/?format=api&limit=100&offset=7200&ordering=sequence_number",
"results": [
{
"id": 8848,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 273376,
"topic": "igwn.gwalert",
"uuid": "ecabdd67-6b63-4a48-a67a-759d4c0dca6d",
"title": "S250622bp - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250622bp/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250622bp/view/"
},
"event": {
"far": 1.78909e-06,
"time": "2025-06-22T13:40:00.441Z",
"group": "CBC",
"search": "BBH",
"area_50": 5183.477552824167,
"area_90": 15321.305493329854,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.015682288725766987,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "08f00063d53382c138fc5b441baa0ece",
"classification": {
"BBH": 0.01859454049537279,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9814054595046272
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-06-22T13:47:38Z",
"superevent_id": "S250622bp",
"external_coinc": null
},
"message_text": "",
"published": "2025-06-22T13:47:38.973028Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-06-22T13:47:38.973046Z",
"modified": "2025-06-22T13:47:38.981191Z"
}
},
{
"id": 1182,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2118,
"topic": "igwn.gwalert",
"uuid": "1c882de0-89da-4d55-a8a7-f6da56f076a2",
"title": "S230816j - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230816j/files/cwb.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S230816j/view/"
},
"event": {
"far": 6.55194e-06,
"time": "2023-08-16T06:45:33.010Z",
"group": "Burst",
"search": "AllSky",
"area_50": 2260.0079631423696,
"area_90": 9896.950664330083,
"duration": 0.022623,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "2ca0f18045d2444553cf330b8b6f6851",
"classification": {},
"skymap_version": 1,
"central_frequency": 80.592804
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-16T06:51:07Z",
"superevent_id": "S230816j",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-16T06:51:09.820606Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-16T06:51:09.820629Z",
"modified": "2023-08-16T06:51:09.824406Z"
}
},
{
"id": 6393,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 149988,
"topic": "igwn.gwalert",
"uuid": "6ae9d92a-ec60-4104-95c5-e6b93e62f8da",
"title": "S241128cf - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241128cf/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S241128cf/view/"
},
"event": {
"far": 8.367793097560365e-07,
"time": "2024-11-28T13:14:51.122Z",
"group": "CBC",
"search": "AllSky",
"area_50": 785.5788519176523,
"area_90": 5000.5115381681335,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.04264138160689884,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "0804376e36ed6f8fbc3d46e21bf8cdfa",
"classification": {
"BBH": 0.6484118668574718,
"BNS": 9.87181957235937e-18,
"NSBH": 7.566526873752087e-16,
"Terrestrial": 0.35158813314252746
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-11-28T13:19:52Z",
"superevent_id": "S241128cf",
"external_coinc": null
},
"message_text": "",
"published": "2024-11-28T13:19:54.028021Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-11-28T13:19:54.028043Z",
"modified": "2024-11-28T13:19:54.037575Z"
}
},
{
"id": 1184,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2120,
"topic": "igwn.gwalert",
"uuid": "764203aa-8945-406d-b069-bb496fb7f369",
"title": "S230816r - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230816r/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230816r/view/"
},
"event": {
"far": 1.118576074077282e-05,
"time": "2023-08-16T08:25:37.857Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1855.888072973193,
"area_90": 6296.380926374174,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.23312112575030924,
"HasMassGap": 0.05437392228570349,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "4c7920741d50df51ce9c1621948fc401",
"classification": {
"BBH": 0.15583565518847528,
"BNS": 0.0,
"NSBH": 0.012152655549077386,
"Terrestrial": 0.8320116892624473
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-16T08:30:40Z",
"superevent_id": "S230816r",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-16T08:30:40.840925Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-16T08:30:40.840946Z",
"modified": "2023-08-16T08:30:40.844496Z"
}
},
{
"id": 1186,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2122,
"topic": "igwn.gwalert",
"uuid": "135a53b3-0e0c-4b17-93b3-b6d522797db2",
"title": "S230816t - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230816t/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230816t/view/"
},
"event": {
"far": 1.02048e-05,
"time": "2023-08-16T08:54:40.527Z",
"group": "Burst",
"search": "BBH",
"area_50": 1722.2305599733147,
"area_90": 7010.6198184488785,
"duration": 0.065841,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "c5132e72491552d0d6e788381abb1906",
"classification": {},
"skymap_version": 0,
"central_frequency": 24.258614
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-16T09:00:31Z",
"superevent_id": "S230816t",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-16T09:00:32.647024Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-16T09:00:32.647046Z",
"modified": "2023-08-16T09:00:32.651593Z"
}
},
{
"id": 10060,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773672,
"topic": "igwn.gwalert",
"uuid": "14e0087e-d7a6-445f-852a-42c0f7e91f72",
"title": "S250829ep - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829ep/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829ep/view/"
},
"event": {
"far": 2.13679e-05,
"time": "2025-08-29T13:51:14.084Z",
"group": "Burst",
"search": "AllSky",
"area_50": 456.5757429948748,
"area_90": 2948.43857562683,
"duration": 0.002512,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "cb890f6715ac5efea1165c0ce49c147c",
"classification": {},
"skymap_version": 0,
"central_frequency": 591.736389
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-29T13:57:30Z",
"superevent_id": "S250829ep",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T13:57:31.230027Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T13:57:31.230044Z",
"modified": "2025-08-29T13:57:31.233880Z"
}
},
{
"id": 1188,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2125,
"topic": "igwn.gwalert",
"uuid": "cee1fc1f-f191-4eb8-8bb0-110e92f26083",
"title": "S230816v - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230816v/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230816v/view/"
},
"event": {
"far": 9.05584e-06,
"time": "2023-08-16T09:56:48.949Z",
"group": "Burst",
"search": "BBH",
"area_50": 2841.8482826850113,
"area_90": 8563.313062089537,
"duration": 0.020013,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "c0e476fef421e8266e1208504ab472e6",
"classification": {},
"skymap_version": 0,
"central_frequency": 43.599636
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-16T10:02:31Z",
"superevent_id": "S230816v",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-16T10:02:31.672803Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-16T10:02:31.672823Z",
"modified": "2023-08-16T10:02:31.676540Z"
}
},
{
"id": 6396,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 150073,
"topic": "igwn.gwalert",
"uuid": "6b3b1a00-ad63-4dc1-8252-f36649f73866",
"title": "S241128dc - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241128dc/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S241128dc/view/"
},
"event": {
"far": 6.9198295996571e-06,
"time": "2024-11-28T18:05:52.473Z",
"group": "CBC",
"search": "AllSky",
"area_50": 28.45730015794113,
"area_90": 116.39953742022371,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.1878187080834778,
"HasMassGap": 0.167614121989122,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "659272dc825dd46065b00fb64d8044fb",
"classification": {
"BBH": 0.15130852234257683,
"BNS": 1.89960793956894e-15,
"NSBH": 1.4429902895331279e-06,
"Terrestrial": 0.8486900346671318
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-11-28T18:10:53Z",
"superevent_id": "S241128dc",
"external_coinc": null
},
"message_text": "",
"published": "2024-11-28T18:10:54.335221Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-11-28T18:10:54.335260Z",
"modified": "2024-11-28T18:10:54.344863Z"
}
},
{
"id": 1190,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2128,
"topic": "igwn.gwalert",
"uuid": "55682fbc-b801-4393-8f1d-85aed8ddc934",
"title": "S230816ac - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230816ac/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230816ac/view/"
},
"event": {
"far": 2.22191e-05,
"time": "2023-08-16T12:09:34.137Z",
"group": "Burst",
"search": "BBH",
"area_50": 351.664037343479,
"area_90": 1122.1356036473303,
"duration": 0.006814,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "aa8d0a6387ca8b2fdbe9d0880887fb41",
"classification": {},
"skymap_version": 0,
"central_frequency": 111.547371
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-16T12:15:35Z",
"superevent_id": "S230816ac",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-16T12:15:36.398118Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-16T12:15:36.398193Z",
"modified": "2023-08-16T12:15:36.401812Z"
}
},
{
"id": 8850,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 273518,
"topic": "igwn.gwalert",
"uuid": "91cd2732-03a9-453b-8cd4-e1c97cb8c3ed",
"title": "S250622bs - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250622bs/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250622bs/view/"
},
"event": {
"far": 2.21254e-05,
"time": "2025-06-22T14:13:58.469Z",
"group": "Burst",
"search": "AllSky",
"area_50": 326.48522798714396,
"area_90": 1198.5113253615464,
"duration": 0.008616,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "baa8a869dcc1095b658780c35f3cc805",
"classification": {},
"skymap_version": 0,
"central_frequency": 1568.655884
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-06-22T14:20:12Z",
"superevent_id": "S250622bs",
"external_coinc": null
},
"message_text": "",
"published": "2025-06-22T14:20:13.444636Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-06-22T14:20:13.444656Z",
"modified": "2025-06-22T14:20:13.452162Z"
}
},
{
"id": 1192,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2133,
"topic": "igwn.gwalert",
"uuid": "507d3b7c-9ff1-4c1f-9df0-c67b2567d4a1",
"title": "S230816af - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230816af/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230816af/view/"
},
"event": {
"far": 1.63689e-05,
"time": "2023-08-16T15:10:40.047Z",
"group": "Burst",
"search": "BBH",
"area_50": 4914.064292711382,
"area_90": 14712.817600551756,
"duration": 0.053672,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "8ed385705a6a742e842758253b6d7e37",
"classification": {},
"skymap_version": 0,
"central_frequency": 20.38846
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-16T15:16:12Z",
"superevent_id": "S230816af",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-16T15:16:14.042231Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-16T15:16:14.042253Z",
"modified": "2023-08-16T15:16:14.046038Z"
}
},
{
"id": 6398,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 150077,
"topic": "igwn.gwalert",
"uuid": "5e18203f-7cdb-4f5b-8c94-0fbfa45b2f8d",
"title": "S241128dg - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241128dg/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241128dg/view/"
},
"event": {
"far": 2.280582521052565e-06,
"time": "2024-11-28T18:19:35.681Z",
"group": "CBC",
"search": "AllSky",
"area_50": 84.66374646067648,
"area_90": 706.0557790338943,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.022579365079365078,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "35f1616e71d17cf3883fa1627a635b85",
"classification": {
"BBH": 0.0,
"BNS": 0.003112985160684523,
"NSBH": 0.0015691165562441618,
"Terrestrial": 0.9953178982830713
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-11-28T18:24:41Z",
"superevent_id": "S241128dg",
"external_coinc": null
},
"message_text": "",
"published": "2024-11-28T18:24:42.371379Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-11-28T18:24:42.371400Z",
"modified": "2024-11-28T18:24:42.380250Z"
}
},
{
"id": 1194,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2138,
"topic": "igwn.gwalert",
"uuid": "db2a19f8-812d-4da4-81c2-c09ff25954ec",
"title": "S230816aj - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230816aj/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230816aj/view/"
},
"event": {
"far": 2.17895e-05,
"time": "2023-08-16T17:30:51.597Z",
"group": "Burst",
"search": "AllSky",
"area_50": 488.25907810159634,
"area_90": 2135.163033417209,
"duration": 0.079521,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "5d54a94d0ded57af519d503d6c6773ec",
"classification": {},
"skymap_version": 0,
"central_frequency": 330.66217
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-16T17:37:37Z",
"superevent_id": "S230816aj",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-16T17:37:38.402962Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-16T17:37:38.402984Z",
"modified": "2023-08-16T17:37:38.406788Z"
}
},
{
"id": 10903,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5786345,
"topic": "igwn.gwalert",
"uuid": "9ab3b173-6b2f-45bc-a73e-a6f216081e0c",
"title": "S251009dv - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S251009dv/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S251009dv/view/"
},
"event": {
"far": 9.86552e-06,
"time": "2025-10-09T23:47:44.588Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1269.8512852044958,
"area_90": 4663.115492793244,
"duration": 0.065499,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "4d7529aba45554dd2b338a7e21bdd551",
"classification": {},
"skymap_version": 0,
"central_frequency": 96.752098
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-10-09T23:55:07Z",
"superevent_id": "S251009dv",
"external_coinc": null
},
"message_text": "",
"published": "2025-10-09T23:55:08.296667Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-10-09T23:55:08.296687Z",
"modified": "2025-10-09T23:55:08.305088Z"
}
},
{
"id": 1196,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2141,
"topic": "igwn.gwalert",
"uuid": "624fbcfa-c2dd-43cf-9d21-e4d16d749691",
"title": "S230816an - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230816an/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230816an/view/"
},
"event": {
"far": 1.63749e-05,
"time": "2023-08-16T18:01:58.701Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1268.1726979140733,
"area_90": 4706.758762344223,
"duration": 0.006557,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "f9f227de85bc71e991f3107adc74f1e8",
"classification": {},
"skymap_version": 0,
"central_frequency": 1135.166382
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-16T18:07:56Z",
"superevent_id": "S230816an",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-16T18:07:57.229242Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-16T18:07:57.229263Z",
"modified": "2023-08-16T18:07:57.232939Z"
}
},
{
"id": 6400,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 150102,
"topic": "igwn.gwalert",
"uuid": "5b43f023-8d04-4492-aaea-ec768dace245",
"title": "S241128dk - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241128dk/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241128dk/view/"
},
"event": {
"far": 2.008307752904126e-05,
"time": "2024-11-28T19:34:03.979Z",
"group": "CBC",
"search": "AllSky",
"area_50": 524.5060724041537,
"area_90": 1884.21423349907,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "dd3378f0362b2107f2320c3300cc3fd3",
"classification": {
"BBH": 0.054212372282926885,
"BNS": 7.259529727729527e-19,
"NSBH": 4.94228564122125e-17,
"Terrestrial": 0.945787627717073
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-11-28T19:39:04Z",
"superevent_id": "S241128dk",
"external_coinc": null
},
"message_text": "",
"published": "2024-11-28T19:39:05.218892Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-11-28T19:39:05.218913Z",
"modified": "2024-11-28T19:39:05.227533Z"
}
},
{
"id": 1198,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2152,
"topic": "igwn.gwalert",
"uuid": "704cc700-e251-4b16-ba70-c0fb6a3f85d0",
"title": "S230817a - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230817a/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230817a/view/"
},
"event": {
"far": 1.81391e-05,
"time": "2023-08-17T01:51:55.410Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1163.2609922626775,
"area_90": 4448.256319619184,
"duration": 0.015834,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "18e68d0aba8ad27d70fa1ea5c254f3f7",
"classification": {},
"skymap_version": 0,
"central_frequency": 1055.947144
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-17T01:58:22Z",
"superevent_id": "S230817a",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-17T01:58:23.253287Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-17T01:58:23.253310Z",
"modified": "2023-08-17T01:58:23.256952Z"
}
},
{
"id": 8852,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 274592,
"topic": "igwn.gwalert",
"uuid": "443f6316-17f1-476d-95f8-d3e066cd2c1f",
"title": "S250622cm - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250622cm/view/"
},
"event": {
"far": 1.370288088245356e-05,
"time": "2025-06-22T18:24:27.801Z",
"group": "Burst",
"search": "AllSky",
"area_50": 6852.832613149178,
"area_90": 22138.04847973495,
"duration": 0.40625,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "19de90fe0619efeef7176587191c849f",
"classification": {},
"skymap_version": 0,
"central_frequency": 72.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-06-22T18:29:39Z",
"superevent_id": "S250622cm",
"external_coinc": null
},
"message_text": "",
"published": "2025-06-22T18:29:40.160710Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-06-22T18:29:40.160730Z",
"modified": "2025-06-22T18:29:40.170048Z"
}
},
{
"id": 1200,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2155,
"topic": "igwn.gwalert",
"uuid": "6984c984-aeed-414c-89ef-1149e3e072eb",
"title": "S230817d - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230817d/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230817d/view/"
},
"event": {
"far": 1.712395316147278e-05,
"time": "2023-08-17T06:33:11.343Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1513.2464423157342,
"area_90": 5832.2515405724,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.04264138160689884,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "3c34245f4f52fb5d7288fe841f98ff8b",
"classification": {
"BBH": 0.0923346348744289,
"BNS": 5.7550986709559884e-15,
"NSBH": 2.684217511798163e-11,
"Terrestrial": 0.9076653650987232
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-17T06:38:23Z",
"superevent_id": "S230817d",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-17T06:38:24.112276Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-17T06:38:24.112299Z",
"modified": "2023-08-17T06:38:24.115976Z"
}
},
{
"id": 6402,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 150130,
"topic": "igwn.gwalert",
"uuid": "ce8a99c7-9180-4a3f-94d8-dba9eaaead22",
"title": "S241128eg - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241128eg/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241128eg/view/"
},
"event": {
"far": 2.20631e-05,
"time": "2024-11-28T22:17:38.535Z",
"group": "CBC",
"search": "BBH",
"area_50": 3916.983442200516,
"area_90": 12369.509743122178,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "81dac9cbbb07d22492fad33157bc1ca8",
"classification": {
"BBH": 0.0008653856491587231,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9991346143508413
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-11-28T22:23:28Z",
"superevent_id": "S241128eg",
"external_coinc": null
},
"message_text": "",
"published": "2024-11-28T22:23:29.276864Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-11-28T22:23:29.276902Z",
"modified": "2024-11-28T22:23:29.285472Z"
}
},
{
"id": 1202,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2157,
"topic": "igwn.gwalert",
"uuid": "6a1279cf-fa63-4567-87db-c1350c1655c9",
"title": "S230817j - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230817j/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230817j/view/"
},
"event": {
"far": 1.22441e-05,
"time": "2023-08-17T07:59:01.053Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1236.279539396049,
"area_90": 4663.115492793244,
"duration": 0.044497,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "44bcb860a3b8f1527577ec12a303a00f",
"classification": {},
"skymap_version": 0,
"central_frequency": 57.804531
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-17T08:04:42Z",
"superevent_id": "S230817j",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-17T08:04:43.332027Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-17T08:04:43.332060Z",
"modified": "2023-08-17T08:04:43.336047Z"
}
},
{
"id": 10062,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773679,
"topic": "igwn.gwalert",
"uuid": "23daf1bd-cba0-4dbe-b925-b8dd86cbbb64",
"title": "S250829ev - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829ev/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250829ev/view/"
},
"event": {
"far": 1.278548203763308e-05,
"time": "2025-08-29T14:26:40.204Z",
"group": "CBC",
"search": "AllSky",
"area_50": 485.6887413131372,
"area_90": 1897.6429318224484,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.27547282252254224,
"HasRemnant": 0.8079557314714839
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "0aa9d052f82d3a0602821369358955eb",
"classification": {
"BBH": 0.0,
"BNS": 0.0011496513793605129,
"NSBH": 0.0008376564568498596,
"Terrestrial": 0.9980126921637896
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-29T14:31:41Z",
"superevent_id": "S250829ev",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T14:31:41.940193Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T14:31:41.940214Z",
"modified": "2025-08-29T14:31:41.949937Z"
}
},
{
"id": 1204,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2159,
"topic": "igwn.gwalert",
"uuid": "4deebf0a-a116-4b28-af23-81b98c392471",
"title": "S230817n - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230817n/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230817n/view/"
},
"event": {
"far": 5.26616e-06,
"time": "2023-08-17T08:29:39.352Z",
"group": "Burst",
"search": "BBH",
"area_50": 1518.282204187001,
"area_90": 4878.813959612514,
"duration": 0.012643,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "cc2f995a62f90f5a10d6f64b5a0274ce",
"classification": {},
"skymap_version": 0,
"central_frequency": 50.705345
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-17T08:35:35Z",
"superevent_id": "S230817n",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-17T08:35:36.461107Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-17T08:35:36.461127Z",
"modified": "2023-08-17T08:35:36.464746Z"
}
},
{
"id": 6404,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 150156,
"topic": "igwn.gwalert",
"uuid": "8bb2f4e1-59c8-4783-a3f1-90ce6208288f",
"title": "S241129h - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241129h/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241129h/view/"
},
"event": {
"far": 8.46482e-06,
"time": "2024-11-29T00:33:22.803Z",
"group": "CBC",
"search": "AllSky",
"area_50": 842.0213495581033,
"area_90": 2946.7599883364073,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.044260011164310525,
"HasMassGap": 0.2141342950482394,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "a9ee9656ec0be787ca76002eb73ed304",
"classification": {
"BBH": 0.09405922,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.90594078
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-11-29T00:38:28Z",
"superevent_id": "S241129h",
"external_coinc": null
},
"message_text": "",
"published": "2024-11-29T00:38:29.949200Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-11-29T00:38:29.949225Z",
"modified": "2024-11-29T00:38:29.954068Z"
}
},
{
"id": 1206,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2164,
"topic": "igwn.gwalert",
"uuid": "53e55d74-a24e-47a1-9425-01192d6f757a",
"title": "S230817z - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230817z/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230817z/view/"
},
"event": {
"far": 1.723651745515414e-05,
"time": "2023-08-17T13:47:06.442Z",
"group": "CBC",
"search": "AllSky",
"area_50": 327.16715407387807,
"area_90": 1167.667283900036,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.0,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "e4c5206f5fcc30ac4df2fa5d3e437a61",
"classification": {
"BBH": 0.0,
"BNS": 0.002564265256613383,
"NSBH": 0.0,
"Terrestrial": 0.9974357347433866
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-17T13:52:09Z",
"superevent_id": "S230817z",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-17T13:52:10.075839Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-17T13:52:10.075861Z",
"modified": "2023-08-17T13:52:10.080677Z"
}
},
{
"id": 8854,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 274872,
"topic": "igwn.gwalert",
"uuid": "cf44c88e-7338-459b-bdd0-fbba2115420c",
"title": "S250622cw - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250622cw/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250622cw/view/"
},
"event": {
"far": 1.65449e-05,
"time": "2025-06-22T19:28:33.555Z",
"group": "CBC",
"search": "BBH",
"area_50": 939.1695889912959,
"area_90": 3014.742773598512,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.1909203438727033,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "784d221f86962689fe8de13784533dee",
"classification": {
"BBH": 0.0009151229161615815,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9990848770838384
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-06-22T19:34:37Z",
"superevent_id": "S250622cw",
"external_coinc": null
},
"message_text": "",
"published": "2025-06-22T19:34:37.944683Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-06-22T19:34:37.944702Z",
"modified": "2025-06-22T19:34:37.950976Z"
}
},
{
"id": 1208,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2167,
"topic": "igwn.gwalert",
"uuid": "78846e27-113d-4066-97e3-cb0bad0631b1",
"title": "S230817ag - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230817ag/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230817ag/view/"
},
"event": {
"far": 1.125847166202156e-05,
"time": "2023-08-17T16:16:28.075Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1233.1321882265072,
"area_90": 4739.4912145074595,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.012106583072100312,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "7c9ae8e966edbfe06332206f81e4ecff",
"classification": {
"BBH": 0.13752569443062584,
"BNS": 1.0714391164716121e-13,
"NSBH": 7.414278199993489e-12,
"Terrestrial": 0.8624743055618527
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-17T16:21:25Z",
"superevent_id": "S230817ag",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-17T16:21:26.028371Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-17T16:21:26.028391Z",
"modified": "2023-08-17T16:21:26.032458Z"
}
},
{
"id": 6406,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 150193,
"topic": "igwn.gwalert",
"uuid": "d2cb1611-8e73-41bc-ae28-08478b6af5e7",
"title": "S241129aa - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241129aa/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S241129aa/view/"
},
"event": {
"far": 4.003769e-20,
"time": "2024-11-29T02:18:32.610Z",
"group": "CBC",
"search": "AllSky",
"area_50": 137.38187855050288,
"area_90": 501.89759983627783,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.006334368530020704,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": true,
"skymap_hash": "9cbdf129bbbe7271cb887ff27a61543f",
"classification": {
"BBH": 1.0,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.0
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-11-29T02:23:49Z",
"superevent_id": "S241129aa",
"external_coinc": null
},
"message_text": "",
"published": "2024-11-29T02:23:50.453104Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-11-29T02:23:50.453127Z",
"modified": "2024-11-29T02:23:50.461105Z"
}
},
{
"id": 10632,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5782693,
"topic": "igwn.gwalert",
"uuid": "708192d8-37f4-43ca-8305-ceea46132c3a",
"title": "S250928bw - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250928bw/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250928bw/view/"
},
"event": {
"far": 1.71941e-05,
"time": "2025-09-28T08:48:32.726Z",
"group": "Burst",
"search": "AllSky",
"area_50": 387.75366408755923,
"area_90": 1798.6062816875308,
"duration": 0.066557,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "3af0181e1c48b9f51cc83e8bd98e094b",
"classification": {},
"skymap_version": 0,
"central_frequency": 400.104523
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-09-28T08:55:49Z",
"superevent_id": "S250928bw",
"external_coinc": null
},
"message_text": "",
"published": "2025-09-28T08:55:49.837863Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-09-28T08:55:49.837883Z",
"modified": "2025-09-28T08:55:49.843595Z"
}
},
{
"id": 1211,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2174,
"topic": "igwn.gwalert",
"uuid": "19774fc7-d896-459a-8b46-9bf406aa027a",
"title": "S230817ao - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230817ao/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230817ao/view/"
},
"event": {
"far": 1.75392902905646e-05,
"time": "2023-08-17T21:20:04.850Z",
"group": "CBC",
"search": "AllSky",
"area_50": 943.5758806286547,
"area_90": 3412.5679614286046,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "8f46f5add17a48df44f89299e489be8a",
"classification": {
"BBH": 0.09011836933653915,
"BNS": 3.457408367559501e-13,
"NSBH": 2.3850250195147047e-11,
"Terrestrial": 0.9098816306392649
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-17T21:25:22Z",
"superevent_id": "S230817ao",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-17T21:25:23.361975Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-17T21:25:23.361996Z",
"modified": "2023-08-17T21:25:23.365857Z"
}
},
{
"id": 1212,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2175,
"topic": "igwn.gwalert",
"uuid": "a6657089-18d9-43ee-83e8-baab699e314a",
"title": "S230817ap - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230817ap/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S230817ap/view/"
},
"event": {
"far": 3.974730241630088e-06,
"time": "2023-08-17T21:23:49.141Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1189.698742086829,
"area_90": 3999.2342194312105,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.012106583072100312,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "8f33003b901f4a77d60f67dfe9b9ee28",
"classification": {
"BBH": 0.33454310555695177,
"BNS": 6.9455726514696945e-15,
"NSBH": 1.9141703517194903e-12,
"Terrestrial": 0.6654568944411271
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-17T21:28:48Z",
"superevent_id": "S230817ap",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-17T21:28:49.996293Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-17T21:28:49.996315Z",
"modified": "2023-08-17T21:28:50.000043Z"
}
},
{
"id": 6408,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 150197,
"topic": "igwn.gwalert",
"uuid": "4981e64d-5e58-4dbc-ad41-98e1b6a68c64",
"title": "S241129ac - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241129ac/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S241129ac/view/"
},
"event": {
"far": 3.0136031143108e-06,
"time": "2024-11-29T02:29:21.833Z",
"group": "CBC",
"search": "AllSky",
"area_50": 211.60691029886547,
"area_90": 1151.7207046410238,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.8222106175268168,
"HasRemnant": 0.0073600941494439244
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "762c1bf1062911f0a30368f8119c1b58",
"classification": {
"BBH": 0.0,
"BNS": 0.0022207703037370294,
"NSBH": 0.003763608827665788,
"Terrestrial": 0.9940156208685972
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-11-29T02:34:26Z",
"superevent_id": "S241129ac",
"external_coinc": null
},
"message_text": "",
"published": "2024-11-29T02:34:28.037999Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-11-29T02:34:28.038026Z",
"modified": "2024-11-29T02:34:28.050233Z"
}
},
{
"id": 1214,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2177,
"topic": "igwn.gwalert",
"uuid": "be381c13-e990-4ecb-81c8-46865ce1837c",
"title": "S230817aq - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230817aq/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230817aq/view/"
},
"event": {
"far": 5.95861e-06,
"time": "2023-08-17T23:13:59.754Z",
"group": "Burst",
"search": "BBH",
"area_50": 1317.6910229815321,
"area_90": 4661.436905502822,
"duration": 0.01019,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "7bf68674906e7dffbe340d72e47dd0b2",
"classification": {},
"skymap_version": 0,
"central_frequency": 109.544746
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-17T23:19:54Z",
"superevent_id": "S230817aq",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-17T23:19:55.279984Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-17T23:19:55.280005Z",
"modified": "2023-08-17T23:19:55.283821Z"
}
},
{
"id": 1216,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2180,
"topic": "igwn.gwalert",
"uuid": "864c6f66-07d9-4f75-a005-d64342937290",
"title": "S230818p - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230818p/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230818p/view/"
},
"event": {
"far": 5.623218506159731e-06,
"time": "2023-08-18T05:07:07.380Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1318.5303166267436,
"area_90": 4902.314181678426,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.026260429225946468,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "787d2f5e4f66e4de21a2a1f2762826ec",
"classification": {
"BBH": 0.26463224845098365,
"BNS": 7.449816885968405e-13,
"NSBH": 5.5950059651318906e-11,
"Terrestrial": 0.7353677514923214
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-18T05:12:06Z",
"superevent_id": "S230818p",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-18T05:12:06.804476Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-18T05:12:06.804496Z",
"modified": "2023-08-18T05:12:06.808053Z"
}
},
{
"id": 8856,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 275352,
"topic": "igwn.gwalert",
"uuid": "fca10bbd-5232-4187-ae08-21558492c4c5",
"title": "S250622di - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250622di/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250622di/view/"
},
"event": {
"far": 1.221346e-05,
"time": "2025-06-22T21:20:35.939Z",
"group": "CBC",
"search": "AllSky",
"area_50": 419.909101869712,
"area_90": 1822.9457973986543,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.0,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "7508118254e746923587cea30b498386",
"classification": {
"BBH": 0.0,
"BNS": 0.001178104,
"NSBH": 4.0624e-05,
"Terrestrial": 0.998781272
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-06-22T21:25:59Z",
"superevent_id": "S250622di",
"external_coinc": null
},
"message_text": "",
"published": "2025-06-22T21:26:00.141163Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-06-22T21:26:00.141183Z",
"modified": "2025-06-22T21:26:00.154273Z"
}
},
{
"id": 1218,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2183,
"topic": "igwn.gwalert",
"uuid": "0845d3d1-d8a8-4c8d-8c6a-b16c92b25716",
"title": "S230818v - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230818v/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230818v/view/"
},
"event": {
"far": 1.792941324635782e-05,
"time": "2023-08-18T06:18:08.430Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1310.76685040854,
"area_90": 4714.312405151125,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.030764199965011327,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "7ad7daa5922cd5c410d99887d3c082f9",
"classification": {
"BBH": 0.08871700059958483,
"BNS": 1.483220387052055e-12,
"NSBH": 1.1238899437922885e-10,
"Terrestrial": 0.911282999286543
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-18T06:23:06Z",
"superevent_id": "S230818v",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-18T06:23:07.452691Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-18T06:23:07.452731Z",
"modified": "2023-08-18T06:23:07.457377Z"
}
},
{
"id": 6411,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 150333,
"topic": "igwn.gwalert",
"uuid": "eb495018-98ac-4f82-87e4-766445778caa",
"title": "S241129cf - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241129cf/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241129cf/view/"
},
"event": {
"far": 1.40032e-05,
"time": "2024-11-29T11:54:43.789Z",
"group": "Burst",
"search": "AllSky",
"area_50": 618.5594165206301,
"area_90": 2154.4667872570653,
"duration": 0.049357,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "bc8b21de39dab8fa84ebd5d10ec5199a",
"classification": {},
"skymap_version": 0,
"central_frequency": 58.680119
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-11-29T12:01:41Z",
"superevent_id": "S241129cf",
"external_coinc": null
},
"message_text": "",
"published": "2024-11-29T12:01:41.941175Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-11-29T12:01:41.941200Z",
"modified": "2024-11-29T12:01:41.950799Z"
}
},
{
"id": 1220,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2185,
"topic": "igwn.gwalert",
"uuid": "f54fa1b3-10f8-462a-bf34-1e07b565d6ec",
"title": "S230818ad - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230818ad/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230818ad/view/"
},
"event": {
"far": 9.83257e-06,
"time": "2023-08-18T08:46:31.349Z",
"group": "Burst",
"search": "AllSky",
"area_50": 158.41667553360776,
"area_90": 701.6494873965356,
"duration": 0.002431,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "7a02a89d71fffadb32563abf9eda99bc",
"classification": {},
"skymap_version": 0,
"central_frequency": 253.986618
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-18T08:53:23Z",
"superevent_id": "S230818ad",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-18T08:53:24.782302Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-18T08:53:24.782321Z",
"modified": "2023-08-18T08:53:24.786822Z"
}
},
{
"id": 10064,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773724,
"topic": "igwn.gwalert",
"uuid": "d8d5d418-f06a-4a7b-bb04-daed4d062b6c",
"title": "S250829ft - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250829ft/view/"
},
"event": {
"far": 2.513998746786633e-06,
"time": "2025-08-29T18:48:20.712Z",
"group": "Burst",
"search": "AllSky",
"area_50": 6389.542520992614,
"area_90": 21821.634775490344,
"duration": 0.21875,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "3c471ecc81b434556c758ba5b6eb13dc",
"classification": {},
"skymap_version": 0,
"central_frequency": 56.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-29T18:53:45Z",
"superevent_id": "S250829ft",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T18:53:46.455627Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T18:53:46.455654Z",
"modified": "2025-08-29T18:53:46.458898Z"
}
},
{
"id": 1222,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2187,
"topic": "igwn.gwalert",
"uuid": "d846c6b3-94d7-4414-8af0-b3ef1cbd448f",
"title": "S230818an - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230818an/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230818an/view/"
},
"event": {
"far": 1.81331e-05,
"time": "2023-08-18T11:08:01.957Z",
"group": "Burst",
"search": "BBH",
"area_50": 2040.3228515083467,
"area_90": 8540.652133668837,
"duration": 0.056834,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "ae135cf545d3ad6a4ce25624f12644dc",
"classification": {},
"skymap_version": 0,
"central_frequency": 28.16374
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-18T11:13:38Z",
"superevent_id": "S230818an",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-18T11:13:39.296848Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-18T11:13:39.296878Z",
"modified": "2023-08-18T11:13:39.300757Z"
}
},
{
"id": 6413,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 150337,
"topic": "igwn.gwalert",
"uuid": "6dbe0576-07e4-4bdf-b973-2ae48eaa4f67",
"title": "S241129ci - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241129ci/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S241129ci/view/"
},
"event": {
"far": 6.62238809237922e-06,
"time": "2024-11-29T12:07:09.167Z",
"group": "CBC",
"search": "AllSky",
"area_50": 383.085093186072,
"area_90": 1834.6959084316109,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.0019297067054141902,
"HasMassGap": 0.24931408846980083,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "c097279863d10f5ff188065fafcedf5a",
"classification": {
"BBH": 0.07733614894762281,
"BNS": 0.0,
"NSBH": 0.017425183098358905,
"Terrestrial": 0.9052386679540183
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-11-29T12:12:13Z",
"superevent_id": "S241129ci",
"external_coinc": null
},
"message_text": "",
"published": "2024-11-29T12:12:14.194345Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-11-29T12:12:14.194369Z",
"modified": "2024-11-29T12:12:14.205314Z"
}
},
{
"id": 1224,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2190,
"topic": "igwn.gwalert",
"uuid": "83abded2-6440-4826-b413-b4c0b51c4049",
"title": "S230818ay - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230818ay/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230818ay/view/"
},
"event": {
"far": 3.11688e-06,
"time": "2023-08-18T14:29:45.578Z",
"group": "Burst",
"search": "BBH",
"area_50": 337.3960453748892,
"area_90": 1190.1183889094345,
"duration": 0.006816,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "5f2f0b1373aadf9566c8704c8cd8ed0c",
"classification": {},
"skymap_version": 0,
"central_frequency": 133.079483
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-18T14:36:49Z",
"superevent_id": "S230818ay",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-18T14:36:49.993436Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-18T14:36:49.993455Z",
"modified": "2023-08-18T14:36:49.997126Z"
}
},
{
"id": 8858,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 276044,
"topic": "igwn.gwalert",
"uuid": "11151b1c-2c0b-425a-91ca-0df063ffd2d5",
"title": "S250623a - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250623a/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250623a/view/"
},
"event": {
"far": 1.151022808154571e-05,
"time": "2025-06-23T00:01:13.043Z",
"group": "CBC",
"search": "AllSky",
"area_50": 313.42372063354514,
"area_90": 1233.5518350491125,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.7600232700451395,
"HasRemnant": 0.005072578545991542
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "089845cb790db5dfcabf902080ff9faf",
"classification": {
"BBH": 0.0,
"BNS": 0.0005992163413776383,
"NSBH": 0.001048855020555374,
"Terrestrial": 0.998351928638067
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-06-23T00:06:16Z",
"superevent_id": "S250623a",
"external_coinc": null
},
"message_text": "",
"published": "2025-06-23T00:06:17.348745Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-06-23T00:06:17.348765Z",
"modified": "2025-06-23T00:06:17.361808Z"
}
},
{
"id": 1226,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2192,
"topic": "igwn.gwalert",
"uuid": "17842825-8d87-4e02-808b-b8b7810c4b96",
"title": "S230818az - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230818az/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230818az/view/"
},
"event": {
"far": 1.52755e-05,
"time": "2023-08-18T14:49:07.570Z",
"group": "Burst",
"search": "BBH",
"area_50": 592.5413135190839,
"area_90": 1803.6420435587975,
"duration": 0.014654,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "2dfbd2d42e25360d2cd68717180eae3c",
"classification": {},
"skymap_version": 0,
"central_frequency": 171.531097
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-18T14:55:14Z",
"superevent_id": "S230818az",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-18T14:55:15.784033Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-18T14:55:15.784054Z",
"modified": "2023-08-18T14:55:15.787971Z"
}
},
{
"id": 6415,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 150342,
"topic": "igwn.gwalert",
"uuid": "273e0f1e-9c91-42d6-8894-c993471e40bd",
"title": "S241129cn - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241129cn/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S241129cn/view/"
},
"event": {
"far": 5.317989782766386e-06,
"time": "2024-11-29T12:26:22.982Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1519.9607914774233,
"area_90": 5316.9252424127435,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.04264138160689884,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "c9ec55bc87c4a592ae082f248b8277cb",
"classification": {
"BBH": 0.1837497898814525,
"BNS": 1.3398755092182334e-13,
"NSBH": 9.433630547681253e-12,
"Terrestrial": 0.8162502101089799
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-11-29T12:31:27Z",
"superevent_id": "S241129cn",
"external_coinc": null
},
"message_text": "",
"published": "2024-11-29T12:31:28.856723Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-11-29T12:31:28.856746Z",
"modified": "2024-11-29T12:31:28.861652Z"
}
},
{
"id": 1228,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2194,
"topic": "igwn.gwalert",
"uuid": "5715df48-9923-4dc5-9a0b-d782c15f2f6b",
"title": "S230818bc - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230818bc/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230818bc/view/"
},
"event": {
"far": 1.94576e-06,
"time": "2023-08-18T15:09:19.527Z",
"group": "Burst",
"search": "BBH",
"area_50": 5248.103163505426,
"area_90": 15714.93421293389,
"duration": 0.036112,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "0ab608e8758f745f224f266e30c60883",
"classification": {},
"skymap_version": 0,
"central_frequency": 23.522196
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-18T15:15:07Z",
"superevent_id": "S230818bc",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-18T15:15:08.742455Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-18T15:15:08.742477Z",
"modified": "2023-08-18T15:15:08.746671Z"
}
},
{
"id": 11037,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5794241,
"topic": "igwn.gwalert",
"uuid": "815b0f23-2d75-4a5c-887b-d7e4ab3a0306",
"title": "S251110ao - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S251110ao/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S251110ao/view/"
},
"event": {
"far": 1.89035e-05,
"time": "2025-11-10T05:10:11.248Z",
"group": "Burst",
"search": "AllSky",
"area_50": 773.8287408846961,
"area_90": 3410.0500804929716,
"duration": 0.012399,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "c9b6199ec9799dde26d23ee74c32cc68",
"classification": {},
"skymap_version": 0,
"central_frequency": 100.778008
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-11-10T05:16:16Z",
"superevent_id": "S251110ao",
"external_coinc": null
},
"message_text": "",
"published": "2025-11-10T05:16:17.179889Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-11-10T05:16:17.179912Z",
"modified": "2025-11-10T05:16:17.186548Z"
}
},
{
"id": 1230,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2197,
"topic": "igwn.gwalert",
"uuid": "548fe441-fe92-40c1-9a25-2c75f229bbfd",
"title": "S230818bn - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230818bn/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230818bn/view/"
},
"event": {
"far": 2.61979e-06,
"time": "2023-08-18T19:04:40.730Z",
"group": "Burst",
"search": "AllSky",
"area_50": 500.21901254585543,
"area_90": 2209.8601678410023,
"duration": 0.009194,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "965534f2f23611f6a0136b5519eaa0c4",
"classification": {},
"skymap_version": 0,
"central_frequency": 441.808258
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-18T19:10:40Z",
"superevent_id": "S230818bn",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-18T19:10:40.904116Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-18T19:10:40.904135Z",
"modified": "2023-08-18T19:10:40.908006Z"
}
},
{
"id": 6417,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 150344,
"topic": "igwn.gwalert",
"uuid": "5b6bfaa9-7319-45b6-9f8e-47d43ebab438",
"title": "S241129co - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241129co/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S241129co/view/"
},
"event": {
"far": 2.179049811254812e-05,
"time": "2024-11-29T12:31:11.767Z",
"group": "CBC",
"search": "AllSky",
"area_50": 441.783192498028,
"area_90": 1709.4313318838445,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.5505836931983685,
"HasRemnant": 0.22634446904346248
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "7ba3f1401e147f2081aa4367aa8d9c04",
"classification": {
"BBH": 0.0,
"BNS": 0.0023230873023782008,
"NSBH": 0.0004202468669969104,
"Terrestrial": 0.9972566658306249
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-11-29T12:36:26Z",
"superevent_id": "S241129co",
"external_coinc": null
},
"message_text": "",
"published": "2024-11-29T12:36:27.890066Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-11-29T12:36:27.890090Z",
"modified": "2024-11-29T12:36:27.898572Z"
}
},
{
"id": 1232,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2199,
"topic": "igwn.gwalert",
"uuid": "cfe5ca9a-ae87-4eee-90be-697557831f57",
"title": "S230818bo - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230818bo/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230818bo/view/"
},
"event": {
"far": 1.462465e-05,
"time": "2023-08-18T19:25:27.181Z",
"group": "CBC",
"search": "AllSky",
"area_50": 457.62486005138885,
"area_90": 2146.073850804954,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.05314285714285714,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "227583b2b86dbd58ef083ebc1036179a",
"classification": {
"BBH": 0.0,
"BNS": 0.000864203,
"NSBH": 5.6577e-05,
"Terrestrial": 0.99907922
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-18T19:30:34Z",
"superevent_id": "S230818bo",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-18T19:30:34.929258Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-18T19:30:34.929278Z",
"modified": "2023-08-18T19:30:34.934156Z"
}
},
{
"id": 8860,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 276167,
"topic": "igwn.gwalert",
"uuid": "e3e01325-5a09-46d2-84b2-41d66e8ae323",
"title": "S250623d - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250623d/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250623d/view/"
},
"event": {
"far": 1.73132e-05,
"time": "2025-06-23T00:27:19.094Z",
"group": "CBC",
"search": "BBH",
"area_50": 2036.9656769275018,
"area_90": 6432.3464968983835,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "b2819e7f31675b554e03053772cb5fe5",
"classification": {
"BBH": 0.0012726250635429759,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.998727374936457
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-06-23T00:34:30Z",
"superevent_id": "S250623d",
"external_coinc": null
},
"message_text": "",
"published": "2025-06-23T00:34:31.341080Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-06-23T00:34:31.341097Z",
"modified": "2025-06-23T00:34:31.347639Z"
}
},
{
"id": 1234,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2203,
"topic": "igwn.gwalert",
"uuid": "92a47f2c-7ffe-4e28-aee6-52bd5358bcac",
"title": "S230818bt - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230818bt/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230818bt/view/"
},
"event": {
"far": 2.00923368538497e-05,
"time": "2023-08-18T23:31:17.376Z",
"group": "CBC",
"search": "AllSky",
"area_50": 167.07189124984794,
"area_90": 538.6166968142663,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.7464028180986271,
"HasMassGap": 0.4371244074860806,
"HasRemnant": 6.549334786081319e-06
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "012778bf231b3cb1e4f3cfec6b671f8e",
"classification": {
"BBH": 0.014407848488441977,
"BNS": 0.0,
"NSBH": 0.04227650372908914,
"Terrestrial": 0.9433156477824689
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-18T23:36:17Z",
"superevent_id": "S230818bt",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-18T23:36:19.549582Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-18T23:36:19.549602Z",
"modified": "2023-08-18T23:36:19.553232Z"
}
},
{
"id": 6419,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 150366,
"topic": "igwn.gwalert",
"uuid": "3cf091af-d468-4e04-9573-c676cdf54fc4",
"title": "S241129cz - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241129cz/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241129cz/view/"
},
"event": {
"far": 1.96037e-05,
"time": "2024-11-29T13:34:47.912Z",
"group": "Burst",
"search": "AllSky",
"area_50": 937.4910017008735,
"area_90": 3448.6575881726853,
"duration": 0.02061,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "c5ffebca8fc411ba53b70b2b1b78e71f",
"classification": {},
"skymap_version": 0,
"central_frequency": 574.257324
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-11-29T13:42:46Z",
"superevent_id": "S241129cz",
"external_coinc": null
},
"message_text": "",
"published": "2024-11-29T13:42:46.857382Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-11-29T13:42:46.857418Z",
"modified": "2024-11-29T13:42:46.863238Z"
}
},
{
"id": 1236,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2208,
"topic": "igwn.gwalert",
"uuid": "0d2f612a-0139-4089-bbf2-9dff9374d4dd",
"title": "S230818bv - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230818bv/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230818bv/view/"
},
"event": {
"far": 2.516280302475613e-06,
"time": "2023-08-18T23:49:09.062Z",
"group": "CBC",
"search": "AllSky",
"area_50": 397.7727319772675,
"area_90": 1643.336957323465,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.04116666517625597,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "32a0e5c64be49bd213e0c964ccb8147c",
"classification": {
"BBH": 0.4403164784718207,
"BNS": 4.80944800426691e-17,
"NSBH": 2.8882917331270737e-15,
"Terrestrial": 0.5596835215281764
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-18T23:54:19Z",
"superevent_id": "S230818bv",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-18T23:54:20.368214Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-18T23:54:20.368233Z",
"modified": "2023-08-18T23:54:20.371706Z"
}
},
{
"id": 10066,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773775,
"topic": "igwn.gwalert",
"uuid": "31cd65de-d72d-4761-9e9c-23ac2c899039",
"title": "S250829gn - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829gn/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250829gn/view/"
},
"event": {
"far": 7.370559585127547e-06,
"time": "2025-08-29T23:20:29.492Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1139.1312999628565,
"area_90": 4129.324734438942,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "1c7f975b06101264404c48cbf66c98ff",
"classification": {
"BBH": 0.16746960989245288,
"BNS": 3.1247108365590026e-15,
"NSBH": 2.225232437984007e-13,
"Terrestrial": 0.8325303901073214
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-29T23:25:26Z",
"superevent_id": "S250829gn",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T23:25:28.030522Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T23:25:28.030542Z",
"modified": "2025-08-29T23:25:28.042380Z"
}
},
{
"id": 1238,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2213,
"topic": "igwn.gwalert",
"uuid": "03f55ecc-5a91-443a-9051-138f56bb6be9",
"title": "S230819e - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230819e/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230819e/view/"
},
"event": {
"far": 7.10591e-06,
"time": "2023-08-19T02:56:14.262Z",
"group": "Burst",
"search": "BBH",
"area_50": 1251.3868250098499,
"area_90": 3666.8739359275887,
"duration": 0.039741,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "df24d3220eb1b2135c95a996ef40ef6b",
"classification": {},
"skymap_version": 0,
"central_frequency": 30.64312
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-19T03:03:56Z",
"superevent_id": "S230819e",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-19T03:03:57.647139Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-19T03:03:57.647170Z",
"modified": "2023-08-19T03:03:57.651283Z"
}
},
{
"id": 6421,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 150457,
"topic": "igwn.gwalert",
"uuid": "de245990-8779-4602-a930-e85c28b4a2b9",
"title": "S241129er - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241129er/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241129er/view/"
},
"event": {
"far": 1.53942e-05,
"time": "2024-11-29T21:03:32.629Z",
"group": "Burst",
"search": "AllSky",
"area_50": 612.6843610041518,
"area_90": 3905.233331167559,
"duration": 0.045778,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "6cfe4436fbe6cd237869d15a2e42366b",
"classification": {},
"skymap_version": 0,
"central_frequency": 287.681244
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-11-29T21:10:32Z",
"superevent_id": "S241129er",
"external_coinc": null
},
"message_text": "",
"published": "2024-11-29T21:10:33.428260Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-11-29T21:10:33.428287Z",
"modified": "2024-11-29T21:10:33.433282Z"
}
},
{
"id": 1240,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2216,
"topic": "igwn.gwalert",
"uuid": "992854ad-dce6-4dba-9fc8-a92dfb2b6aad",
"title": "S230819f - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230819f/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230819f/view/"
},
"event": {
"far": 1.571534448885359e-05,
"time": "2023-08-19T03:08:20.185Z",
"group": "CBC",
"search": "AllSky",
"area_50": 2347.0846788330286,
"area_90": 7694.64413929598,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.40407628558046693,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "16e39d7e6266883e7b996720d3c8a00f",
"classification": {
"BBH": 0.0,
"BNS": 0.046417183363778876,
"NSBH": 0.12889628996416458,
"Terrestrial": 0.8246865266720566
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-19T03:13:19Z",
"superevent_id": "S230819f",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-19T03:13:20.537972Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-19T03:13:20.537994Z",
"modified": "2023-08-19T03:13:20.541335Z"
}
},
{
"id": 10634,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5782762,
"topic": "igwn.gwalert",
"uuid": "828d83c7-ff4d-422f-86f7-e45270b64d53",
"title": "S250928dt - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250928dt/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250928dt/view/"
},
"event": {
"far": 2.274279108472769e-05,
"time": "2025-09-28T17:00:04.303Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1176.8995139973588,
"area_90": 4199.82540063668,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.012110860154338415,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "2ce5c85fcbec061b411ba0befc695854",
"classification": {
"BBH": 0.04656927412944303,
"BNS": 2.690062208547452e-13,
"NSBH": 2.075146821877453e-11,
"Terrestrial": 0.9534307258495365
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-09-28T17:05:06Z",
"superevent_id": "S250928dt",
"external_coinc": null
},
"message_text": "",
"published": "2025-09-28T17:05:06.781324Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-09-28T17:05:06.781351Z",
"modified": "2025-09-28T17:05:06.795526Z"
}
},
{
"id": 1242,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2219,
"topic": "igwn.gwalert",
"uuid": "fa32b650-1b61-4030-93c2-1295af8c2bb7",
"title": "S230819h - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230819h/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230819h/view/"
},
"event": {
"far": 1.829428583732806e-05,
"time": "2023-08-19T03:58:06.794Z",
"group": "CBC",
"search": "AllSky",
"area_50": 2461.43843799305,
"area_90": 7758.430456332028,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.6828385604430925,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "b58465f3d08a52fc32ada6c480c8fd94",
"classification": {
"BBH": 0.031682477276547445,
"BNS": 0.0,
"NSBH": 0.11291985805492123,
"Terrestrial": 0.8553976646685313
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-19T04:03:25Z",
"superevent_id": "S230819h",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-19T04:03:27.124341Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-19T04:03:27.124362Z",
"modified": "2023-08-19T04:03:27.127894Z"
}
},
{
"id": 6423,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 150466,
"topic": "igwn.gwalert",
"uuid": "e8807e66-166e-448b-a1ff-ab8aa8e6cae3",
"title": "S241129ew - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241129ew/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241129ew/view/"
},
"event": {
"far": 1.00847e-06,
"time": "2024-11-29T21:55:44.031Z",
"group": "CBC",
"search": "BBH",
"area_50": 2982.849615080488,
"area_90": 10828.566610514476,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.04264138160689884,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "e8930842c17c1b7140bb4d614aaf212a",
"classification": {
"BBH": 0.03877141438401277,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9612285856159872
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-11-29T22:01:48Z",
"superevent_id": "S241129ew",
"external_coinc": null
},
"message_text": "",
"published": "2024-11-29T22:01:49.379721Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-11-29T22:01:49.379765Z",
"modified": "2024-11-29T22:01:49.389380Z"
}
},
{
"id": 1244,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2221,
"topic": "igwn.gwalert",
"uuid": "592fdf82-5bf3-4135-9cd2-1e1a2475cdd0",
"title": "S230819m - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230819m/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230819m/view/"
},
"event": {
"far": 2.085189589706715e-05,
"time": "2023-08-19T05:05:33.356Z",
"group": "CBC",
"search": "AllSky",
"area_50": 954.4866980163998,
"area_90": 4781.455896768019,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.5353572567454532,
"HasRemnant": 0.00023872659670634723
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "3995a9fa979bf70a15af86f43d6e2894",
"classification": {
"BBH": 0.0,
"BNS": 0.039754111653749195,
"NSBH": 0.03058383666208277,
"Terrestrial": 0.929662051684168
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-19T05:10:32Z",
"superevent_id": "S230819m",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-19T05:10:33.586876Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-19T05:10:33.586913Z",
"modified": "2023-08-19T05:10:33.590690Z"
}
},
{
"id": 8863,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 276257,
"topic": "igwn.gwalert",
"uuid": "6c1598cc-5bf3-40f4-a9b5-beb4be687d82",
"title": "S250623h - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250623h/view/"
},
"event": {
"far": 1.1059458344955689e-05,
"time": "2025-06-23T00:49:30.094Z",
"group": "Burst",
"search": "AllSky",
"area_50": 7223.8004043325145,
"area_90": 22641.62466686165,
"duration": 0.0625,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "3702fa4f4b68a2f5ffc1b1163491ede6",
"classification": {},
"skymap_version": 0,
"central_frequency": 328.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-06-23T00:54:43Z",
"superevent_id": "S250623h",
"external_coinc": null
},
"message_text": "",
"published": "2025-06-23T00:54:43.894163Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-06-23T00:54:43.894182Z",
"modified": "2025-06-23T00:54:43.909554Z"
}
},
{
"id": 1246,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2224,
"topic": "igwn.gwalert",
"uuid": "3ce39ed0-55ee-4f9d-9501-acd622863b04",
"title": "S230819q - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230819q/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230819q/view/"
},
"event": {
"far": 4.69423e-06,
"time": "2023-08-19T06:35:17.145Z",
"group": "Burst",
"search": "BBH",
"area_50": 1871.6248288209022,
"area_90": 7368.998204954046,
"duration": 0.045018,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "1e53045ea93d83c37ed14f3f02f2c552",
"classification": {},
"skymap_version": 0,
"central_frequency": 25.174221
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-19T06:41:07Z",
"superevent_id": "S230819q",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-19T06:41:08.224485Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-19T06:41:08.224504Z",
"modified": "2023-08-19T06:41:08.227947Z"
}
},
{
"id": 6425,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 150514,
"topic": "igwn.gwalert",
"uuid": "2ab37857-eb83-4a26-ab13-a7b34ca2d2ac",
"title": "S241130b - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241130b/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241130b/view/"
},
"event": {
"far": 1.58628e-05,
"time": "2024-11-30T01:51:29.887Z",
"group": "CBC",
"search": "BBH",
"area_50": 1488.9069266046104,
"area_90": 4681.579952987889,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "f3e9c733774b085a63551f61a678bafa",
"classification": {
"BBH": 0.001541807824522734,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9984581921754773
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-11-30T01:57:09Z",
"superevent_id": "S241130b",
"external_coinc": null
},
"message_text": "",
"published": "2024-11-30T01:57:10.021548Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-11-30T01:57:10.021572Z",
"modified": "2024-11-30T01:57:10.029086Z"
}
},
{
"id": 1248,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2228,
"topic": "igwn.gwalert",
"uuid": "fccba899-9e42-4a90-91fe-5a1e5d7f8695",
"title": "S230819ad - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230819ad/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230819ad/view/"
},
"event": {
"far": 1.26812e-05,
"time": "2023-08-19T10:17:22.863Z",
"group": "Burst",
"search": "AllSky",
"area_50": 497.4913081989191,
"area_90": 1563.8138844397072,
"duration": 0.014427,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "70d4f381852d469caf931966d92141b5",
"classification": {},
"skymap_version": 0,
"central_frequency": 30.571415
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-19T10:23:48Z",
"superevent_id": "S230819ad",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-19T10:23:48.926893Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-19T10:23:48.926929Z",
"modified": "2023-08-19T10:23:48.931048Z"
}
},
{
"id": 8864,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 276263,
"topic": "igwn.gwalert",
"uuid": "a0ee69ef-01c9-4066-9e9d-55cf734a4c2b",
"title": "S250623i - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250623i/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250623i/view/"
},
"event": {
"far": 2.13189e-05,
"time": "2025-06-23T00:49:58.480Z",
"group": "CBC",
"search": "BBH",
"area_50": 1134.7250083254978,
"area_90": 3328.6385969074886,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "af0aa3770e5c9b1da65d050763393701",
"classification": {
"BBH": 0.0007953651154334329,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9992046348845666
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-06-23T00:55:57Z",
"superevent_id": "S250623i",
"external_coinc": null
},
"message_text": "",
"published": "2025-06-23T00:55:58.222236Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-06-23T00:55:58.222254Z",
"modified": "2025-06-23T00:55:58.229354Z"
}
},
{
"id": 1250,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2230,
"topic": "igwn.gwalert",
"uuid": "0c6de0e5-9203-461d-aeca-42850843a9d9",
"title": "S230819at - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230819at/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230819at/view/"
},
"event": {
"far": 1.059115948010003e-05,
"time": "2023-08-19T14:19:58.047Z",
"group": "CBC",
"search": "AllSky",
"area_50": 3954.7516562350183,
"area_90": 12861.335819215923,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.29439912331203894,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "57051dadcf8364161ce22b5d420068da",
"classification": {
"BBH": 0.25106212222168744,
"BNS": 0.0,
"NSBH": 0.002666249901369461,
"Terrestrial": 0.7462716278769431
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-19T14:25:02Z",
"superevent_id": "S230819at",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-19T14:25:03.265072Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-19T14:25:03.265098Z",
"modified": "2023-08-19T14:25:03.268619Z"
}
},
{
"id": 6427,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 150521,
"topic": "igwn.gwalert",
"uuid": "1b2a4764-6276-4df8-990b-6215ac6c3c27",
"title": "S241130h - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241130h/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241130h/view/"
},
"event": {
"far": 1.92363e-06,
"time": "2024-11-30T02:14:52.964Z",
"group": "Burst",
"search": "AllSky",
"area_50": 386.07507679713683,
"area_90": 1486.389045668977,
"duration": 0.025949,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "88c1cab193febc0da88c771f7972b832",
"classification": {},
"skymap_version": 0,
"central_frequency": 1296.814087
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-11-30T02:23:21Z",
"superevent_id": "S241130h",
"external_coinc": null
},
"message_text": "",
"published": "2024-11-30T02:23:22.308219Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-11-30T02:23:22.308242Z",
"modified": "2024-11-30T02:23:22.313090Z"
}
},
{
"id": 1252,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2233,
"topic": "igwn.gwalert",
"uuid": "2a8354f7-7000-4676-acec-5f85b84a5e93",
"title": "S230819av - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230819av/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230819av/view/"
},
"event": {
"far": 8.14865e-06,
"time": "2023-08-19T14:51:18.242Z",
"group": "Burst",
"search": "BBH",
"area_50": 2226.6460407452255,
"area_90": 7506.642362768678,
"duration": 0.02386,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "d72708eccb8cec240937455ed5c2d74b",
"classification": {},
"skymap_version": 0,
"central_frequency": 46.086926
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-19T14:59:48Z",
"superevent_id": "S230819av",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-19T14:59:48.961525Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-19T14:59:48.961545Z",
"modified": "2023-08-19T14:59:48.965071Z"
}
},
{
"id": 10068,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773791,
"topic": "igwn.gwalert",
"uuid": "3268005e-6931-4351-9dd9-79ccd1ed86a2",
"title": "S250830c - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250830c/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250830c/view/"
},
"event": {
"far": 1.972937603300005e-05,
"time": "2025-08-30T01:08:31.678Z",
"group": "CBC",
"search": "AllSky",
"area_50": 387.438928970605,
"area_90": 1442.3261292953903,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.5066624403816191,
"HasRemnant": 0.5761213905846435
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "4cba15fea5b4ec9b48e928edc3821d13",
"classification": {
"BBH": 0.0,
"BNS": 0.00028631688778695853,
"NSBH": 0.0012344865764844556,
"Terrestrial": 0.9984791965357286
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-30T01:13:32Z",
"superevent_id": "S250830c",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-30T01:13:33.155876Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-30T01:13:33.155903Z",
"modified": "2025-08-30T01:13:33.175622Z"
}
},
{
"id": 1254,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2239,
"topic": "igwn.gwalert",
"uuid": "7c2056f2-42cb-455f-89dc-93a532f7483d",
"title": "S230819ax - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230819ax/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S230819ax/view/"
},
"event": {
"far": 8.842249687858943e-09,
"time": "2023-08-19T17:19:10.455Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1004.8443167290696,
"area_90": 4125.967559858097,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": true,
"skymap_hash": "eb0369eb3a59df9fe72537888c9b6a86",
"classification": {
"BBH": 0.9927880126144608,
"BNS": 4.811589372686276e-21,
"NSBH": 4.084920565817196e-19,
"Terrestrial": 0.007211987385539187
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-19T17:24:13Z",
"superevent_id": "S230819ax",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-19T17:24:14.830817Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-19T17:24:14.830840Z",
"modified": "2023-08-19T17:24:14.834720Z"
}
},
{
"id": 6429,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 150534,
"topic": "igwn.gwalert",
"uuid": "ea7292de-6fa1-4411-a80c-067e73ea2abd",
"title": "S241130m - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241130m/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241130m/view/"
},
"event": {
"far": 2.128315e-05,
"time": "2024-11-30T02:56:59.268Z",
"group": "CBC",
"search": "AllSky",
"area_50": 8072.326279641004,
"area_90": 24232.08612453681,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.0,
"HasRemnant": 1.0
},
"instruments": [
"H1"
],
"significant": false,
"skymap_hash": "fbfb40b424f69732b89aa912f8ac1233",
"classification": {
"BBH": 0.0,
"BNS": 0.000724245,
"NSBH": 0.0,
"Terrestrial": 0.999275755
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-11-30T03:02:04Z",
"superevent_id": "S241130m",
"external_coinc": null
},
"message_text": "",
"published": "2024-11-30T03:02:05.064363Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-11-30T03:02:05.064392Z",
"modified": "2024-11-30T03:02:05.071725Z"
}
},
{
"id": 1258,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2250,
"topic": "igwn.gwalert",
"uuid": "70405e76-c0ea-41c5-a6ca-39f3e0f8c5e3",
"title": "S230820g - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230820g/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230820g/view/"
},
"event": {
"far": 1.051294289523686e-05,
"time": "2023-08-20T05:21:16.067Z",
"group": "CBC",
"search": "AllSky",
"area_50": 314.9449403654904,
"area_90": 1680.265877712756,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.004507266841791322,
"HasMassGap": 0.1297688043391692,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "633f17bfa2c7cd7d7c53acc23b637a12",
"classification": {
"BBH": 0.13840902939480917,
"BNS": 7.035987468235321e-17,
"NSBH": 0.00027561655812840386,
"Terrestrial": 0.8613153540470624
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-20T05:26:15Z",
"superevent_id": "S230820g",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-20T05:26:16.533275Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-20T05:26:16.533307Z",
"modified": "2023-08-20T05:26:16.537421Z"
}
},
{
"id": 8866,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 277376,
"topic": "igwn.gwalert",
"uuid": "818456e3-9d85-4112-88b4-ad6392dd1f1a",
"title": "S250623ab - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250623ab/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250623ab/view/"
},
"event": {
"far": 1.349374528795881e-06,
"time": "2025-06-23T05:09:28.265Z",
"group": "CBC",
"search": "AllSky",
"area_50": 636.8665091567988,
"area_90": 2277.003659457896,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "cbcbf93a6e23618491f0d194535956f6",
"classification": {
"BBH": 0.0005204436821012324,
"BNS": 0.0,
"NSBH": 0.013189605143715269,
"Terrestrial": 0.9862899511741835
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-06-23T05:14:31Z",
"superevent_id": "S250623ab",
"external_coinc": null
},
"message_text": "",
"published": "2025-06-23T05:14:31.940169Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-06-23T05:14:31.940188Z",
"modified": "2025-06-23T05:14:31.945759Z"
}
},
{
"id": 1260,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2253,
"topic": "igwn.gwalert",
"uuid": "2f66864c-fb3c-4f1a-a8de-28de5fa09c73",
"title": "S230820l - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230820l/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230820l/view/"
},
"event": {
"far": 8.17919e-06,
"time": "2023-08-20T11:42:13.018Z",
"group": "Burst",
"search": "AllSky",
"area_50": 753.0562231657198,
"area_90": 3805.567210798734,
"duration": 0.071002,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "25cda5bfd5df65f9cb2a44ae5a461aea",
"classification": {},
"skymap_version": 0,
"central_frequency": 82.541763
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-20T11:48:24Z",
"superevent_id": "S230820l",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-20T11:48:26.294825Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-20T11:48:26.294846Z",
"modified": "2023-08-20T11:48:26.298505Z"
}
},
{
"id": 6431,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 150547,
"topic": "igwn.gwalert",
"uuid": "4a3d697b-a4ad-4187-b1f1-04fc3391aac1",
"title": "S241130n - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241130n/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S241130n/view/"
},
"event": {
"far": 4.003769e-20,
"time": "2024-11-30T03:49:08.603Z",
"group": "CBC",
"search": "AllSky",
"area_50": 152.4891641643039,
"area_90": 543.4426352742306,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": true,
"skymap_hash": "3540aa499589fd84534a657106530551",
"classification": {
"BBH": 1.0,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.0
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-11-30T03:54:19Z",
"superevent_id": "S241130n",
"external_coinc": null
},
"message_text": "",
"published": "2024-11-30T03:54:20.268079Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-11-30T03:54:20.268104Z",
"modified": "2024-11-30T03:54:20.273879Z"
}
},
{
"id": 1262,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2255,
"topic": "igwn.gwalert",
"uuid": "4846d7f9-bcee-41ac-8f59-ec4a00137d8f",
"title": "S230820n - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230820n/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230820n/view/"
},
"event": {
"far": 1.943178990770387e-05,
"time": "2023-08-20T12:08:42.143Z",
"group": "CBC",
"search": "AllSky",
"area_50": 663.8812733620331,
"area_90": 3419.282310590295,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "b6122efe2a87daf57b1b4957e643497c",
"classification": {
"BBH": 0.09641985893889284,
"BNS": 1.0809724096863652e-14,
"NSBH": 7.032093399034247e-13,
"Terrestrial": 0.9035801410603932
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-20T12:13:54Z",
"superevent_id": "S230820n",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-20T12:13:55.339231Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-20T12:13:55.339249Z",
"modified": "2023-08-20T12:13:55.342857Z"
}
},
{
"id": 10905,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5786479,
"topic": "igwn.gwalert",
"uuid": "fb89b9f8-287d-4670-9c33-2cfd6cc65b2f",
"title": "S251010al - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S251010al/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S251010al/view/"
},
"event": {
"far": 7.772784e-06,
"time": "2025-10-10T15:16:13.010Z",
"group": "CBC",
"search": "AllSky",
"area_50": 161.72139426162676,
"area_90": 826.284593710394,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.040634920634920635,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "7dac87ca57c45fbf11d6f0e469482db5",
"classification": {
"BBH": 0.0,
"BNS": 0.001735967,
"NSBH": 0.00012859,
"Terrestrial": 0.998135443
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-10-10T15:21:54Z",
"superevent_id": "S251010al",
"external_coinc": null
},
"message_text": "",
"published": "2025-10-10T15:21:54.951120Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-10-10T15:21:54.951142Z",
"modified": "2025-10-10T15:21:54.957767Z"
}
},
{
"id": 1264,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2257,
"topic": "igwn.gwalert",
"uuid": "0cbad320-3df8-489b-ace0-4f21fdf59b01",
"title": "S230820u - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230820u/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230820u/view/"
},
"event": {
"far": 1.64914e-05,
"time": "2023-08-20T12:54:31.793Z",
"group": "Burst",
"search": "BBH",
"area_50": 4318.1658046114535,
"area_90": 12827.764073407478,
"duration": 0.035756,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "8a2585c68b68d7e5a37051b3bb1fc79f",
"classification": {},
"skymap_version": 0,
"central_frequency": 26.331474
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-20T13:01:38Z",
"superevent_id": "S230820u",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-20T13:01:38.881395Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-20T13:01:38.881429Z",
"modified": "2023-08-20T13:01:38.893216Z"
}
},
{
"id": 6433,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 150555,
"topic": "igwn.gwalert",
"uuid": "9cb8e385-921e-4445-8b4a-1b86b66c1c0b",
"title": "S241130q - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241130q/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241130q/view/"
},
"event": {
"far": 2.13059665838955e-05,
"time": "2024-11-30T04:38:10.084Z",
"group": "CBC",
"search": "AllSky",
"area_50": 4877.135372322092,
"area_90": 18618.89022536453,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.11079013361058906,
"HasMassGap": 0.4575608767059458,
"HasRemnant": 0.0
},
"instruments": [
"L1",
"V1"
],
"significant": false,
"skymap_hash": "711e1ead5dbc974b2340de824a32ab9b",
"classification": {
"BBH": 0.0777131161193586,
"BNS": 0.0,
"NSBH": 0.00039852059031607323,
"Terrestrial": 0.9218883632903253
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-11-30T04:43:14Z",
"superevent_id": "S241130q",
"external_coinc": null
},
"message_text": "",
"published": "2024-11-30T04:43:15.380805Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-11-30T04:43:15.380831Z",
"modified": "2024-11-30T04:43:15.387360Z"
}
},
{
"id": 1266,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2259,
"topic": "igwn.gwalert",
"uuid": "2a41ade3-b87e-4de5-b1da-3e9c617a6189",
"title": "S230820y - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230820y/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230820y/view/"
},
"event": {
"far": 7.117475507521932e-07,
"time": "2023-08-20T13:47:35.843Z",
"group": "CBC",
"search": "AllSky",
"area_50": 585.8269643573946,
"area_90": 2176.2884220325564,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.039653679653679656,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "323f0496e9f899d578443e1f323d4959",
"classification": {
"BBH": 0.011563093408424223,
"BNS": 0.0,
"NSBH": 0.036666810418214846,
"Terrestrial": 0.951770096173361
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-20T13:52:40Z",
"superevent_id": "S230820y",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-20T13:52:41.470459Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-20T13:52:41.470478Z",
"modified": "2023-08-20T13:52:41.474274Z"
}
},
{
"id": 1268,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2261,
"topic": "igwn.gwalert",
"uuid": "b3d2b633-aedd-4e39-a176-1fa8c349f20f",
"title": "S230820ac - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230820ac/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230820ac/view/"
},
"event": {
"far": 1.700306932658077e-05,
"time": "2023-08-20T14:04:37.874Z",
"group": "CBC",
"search": "AllSky",
"area_50": 474.5681005140892,
"area_90": 1943.8040823090628,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.8603851001226053,
"HasRemnant": 0.06581080520925174
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "587a2177a73689129c678ca83ca4824c",
"classification": {
"BBH": 0.0,
"BNS": 0.00036429857709313943,
"NSBH": 0.0009490905237341895,
"Terrestrial": 0.9986866108991727
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-20T14:09:44Z",
"superevent_id": "S230820ac",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-20T14:09:46.113517Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-20T14:09:46.113537Z",
"modified": "2023-08-20T14:09:46.117342Z"
}
},
{
"id": 8868,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 277576,
"topic": "igwn.gwalert",
"uuid": "f5a6ebe6-e66b-498a-bf6e-83d38bac335b",
"title": "S250623ag - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250623ag/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250623ag/view/"
},
"event": {
"far": 1.169572e-05,
"time": "2025-06-23T05:55:22.085Z",
"group": "CBC",
"search": "AllSky",
"area_50": 278.01601997619906,
"area_90": 2146.913144450165,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.8850481670821292,
"HasRemnant": 7.21000432739342e-05
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "05d3c8c441cc3538b960aa1664901b07",
"classification": {
"BBH": 0.0,
"BNS": 0.00046073715343424384,
"NSBH": 0.0008085112031339211,
"Terrestrial": 0.9987307516434318
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-06-23T06:00:56Z",
"superevent_id": "S250623ag",
"external_coinc": null
},
"message_text": "",
"published": "2025-06-23T06:00:56.988931Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-06-23T06:00:56.988961Z",
"modified": "2025-06-23T06:00:56.994545Z"
}
},
{
"id": 1270,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2263,
"topic": "igwn.gwalert",
"uuid": "8bdbfcc4-8e44-4096-8613-b37454221424",
"title": "S230820am - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230820am/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230820am/view/"
},
"event": {
"far": 3.658828763452913e-06,
"time": "2023-08-20T16:22:54.660Z",
"group": "CBC",
"search": "AllSky",
"area_50": 977.1476264371012,
"area_90": 4050.4311317890924,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "69d073863071eb746e31b01820038fb1",
"classification": {
"BBH": 0.34450843662940395,
"BNS": 1.4006559570053778e-14,
"NSBH": 9.88033876017838e-13,
"Terrestrial": 0.655491563369594
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-20T16:27:51Z",
"superevent_id": "S230820am",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-20T16:27:53.299876Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-20T16:27:53.299907Z",
"modified": "2023-08-20T16:27:53.305258Z"
}
},
{
"id": 1272,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2265,
"topic": "igwn.gwalert",
"uuid": "bdfe47b8-75de-497d-9461-d1bd7e8af86a",
"title": "S230820at - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230820at/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230820at/view/"
},
"event": {
"far": 1.787165e-05,
"time": "2023-08-20T17:02:47.076Z",
"group": "CBC",
"search": "AllSky",
"area_50": 738.578407785827,
"area_90": 2264.4142547797283,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.0,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "34638e5854bd67a8d3873e8bee1505a3",
"classification": {
"BBH": 0.0,
"BNS": 0.00071959,
"NSBH": 0.000104215,
"Terrestrial": 0.999176194
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-20T17:07:56Z",
"superevent_id": "S230820at",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-20T17:07:57.631640Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-20T17:07:57.631660Z",
"modified": "2023-08-20T17:07:57.635268Z"
}
},
{
"id": 6437,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 150585,
"topic": "igwn.gwalert",
"uuid": "1fb12608-8cbf-436b-88fc-c3c43a160029",
"title": "S241130z - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241130z/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241130z/view/"
},
"event": {
"far": 4.969846e-06,
"time": "2024-11-30T06:35:10.854Z",
"group": "CBC",
"search": "AllSky",
"area_50": 334.1437824996959,
"area_90": 1417.1473199390553,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.10780075851911043,
"HasMassGap": 0.6756428362644904,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "535c4c2f6c3eacb3c7ad477b60477f7f",
"classification": {
"BBH": 0.03813464,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.96186536
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-11-30T06:40:38Z",
"superevent_id": "S241130z",
"external_coinc": null
},
"message_text": "",
"published": "2024-11-30T06:40:39.438103Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-11-30T06:40:39.438145Z",
"modified": "2024-11-30T06:40:39.443595Z"
}
},
{
"id": 1274,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2269,
"topic": "igwn.gwalert",
"uuid": "deb43d89-a6ab-4734-933f-8a215867e64b",
"title": "S230820bi - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230820bi/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230820bi/view/"
},
"event": {
"far": 2.31401e-05,
"time": "2023-08-20T19:40:47.086Z",
"group": "Burst",
"search": "BBH",
"area_50": 2421.3621664342168,
"area_90": 7677.018972746545,
"duration": 0.013912,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "d3b743dc83307708031c78a802794d24",
"classification": {},
"skymap_version": 0,
"central_frequency": 54.162701
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-20T19:46:23Z",
"superevent_id": "S230820bi",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-20T19:46:23.948871Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-20T19:46:23.948891Z",
"modified": "2023-08-20T19:46:23.952562Z"
}
},
{
"id": 10070,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773795,
"topic": "igwn.gwalert",
"uuid": "c55dc95f-ebcc-405a-b5b2-36b3feafd06a",
"title": "S250830f - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250830f/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250830f/view/"
},
"event": {
"far": 7.689851041215397e-06,
"time": "2025-08-30T01:25:29.213Z",
"group": "CBC",
"search": "AllSky",
"area_50": 149.97128322867042,
"area_90": 534.000581765605,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.6650821082391204,
"HasMassGap": 0.6161993748170387,
"HasRemnant": 0.1347851540741684
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "2c1310c55ee83d90036f8210ce543046",
"classification": {
"BBH": 0.0009156072747914118,
"BNS": 0.0,
"NSBH": 0.004752572288267128,
"Terrestrial": 0.9943318204369415
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-30T01:30:27Z",
"superevent_id": "S250830f",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-30T01:30:29.018828Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-30T01:30:29.018850Z",
"modified": "2025-08-30T01:30:29.029850Z"
}
},
{
"id": 1276,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2272,
"topic": "igwn.gwalert",
"uuid": "85a62d3f-be40-4876-bd85-7eda1d500884",
"title": "S230820bj - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230820bj/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230820bj/view/"
},
"event": {
"far": 2.161423981306143e-05,
"time": "2023-08-20T19:55:45.858Z",
"group": "CBC",
"search": "AllSky",
"area_50": 867.4099823257411,
"area_90": 22838.85867348628,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.3311659451659451,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "a09fa1611f7fd5d3a3718dbafd30f05b",
"classification": {
"BBH": 0.0,
"BNS": 0.10467363124829224,
"NSBH": 0.0,
"Terrestrial": 0.8953263687517078
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-20T20:00:47Z",
"superevent_id": "S230820bj",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-20T20:00:48.498977Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-20T20:00:48.499006Z",
"modified": "2023-08-20T20:00:48.502701Z"
}
},
{
"id": 6439,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 150645,
"topic": "igwn.gwalert",
"uuid": "d5f70005-e92f-4077-ab1d-5942e1bc572e",
"title": "S241130be - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241130be/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S241130be/view/"
},
"event": {
"far": 1.91274e-10,
"time": "2024-11-30T11:04:22.113Z",
"group": "CBC",
"search": "AllSky",
"area_50": 286.0942213113566,
"area_90": 1300.2756798434002,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 7.843606870260557e-05,
"HasMassGap": 0.03669939664074735,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": true,
"skymap_hash": "8419c9b5861c04e5e737e9f8ae1d494d",
"classification": {
"BBH": 0.999374081,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.000625919
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-11-30T11:09:29Z",
"superevent_id": "S241130be",
"external_coinc": null
},
"message_text": "",
"published": "2024-11-30T11:09:30.495231Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-11-30T11:09:30.495272Z",
"modified": "2024-11-30T11:09:30.501145Z"
}
},
{
"id": 1278,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2274,
"topic": "igwn.gwalert",
"uuid": "8c10bbfc-3af8-41f1-b8b1-badec9f90ebd",
"title": "S230820bn - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230820bn/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230820bn/view/"
},
"event": {
"far": 3.200613491571858e-06,
"time": "2023-08-20T20:38:44.457Z",
"group": "CBC",
"search": "AllSky",
"area_50": 4155.342837440488,
"area_90": 12743.83470888636,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.05584942834942835,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "98efaef9816810916047906ab4f78abe",
"classification": {
"BBH": 0.15539560837520733,
"BNS": 0.0,
"NSBH": 0.41562735239193904,
"Terrestrial": 0.4289770392328537
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-20T20:43:42Z",
"superevent_id": "S230820bn",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-20T20:43:43.952628Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-20T20:43:43.952667Z",
"modified": "2023-08-20T20:43:43.959091Z"
}
},
{
"id": 1280,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2276,
"topic": "igwn.gwalert",
"uuid": "b5aea3ef-20f6-48b6-8923-f2ff54c6bd05",
"title": "S230820bq - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230820bq/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S230820bq/view/"
},
"event": {
"far": 4.230770400681649e-08,
"time": "2023-08-20T21:25:15.975Z",
"group": "CBC",
"search": "AllSky",
"area_50": 518.6834727405012,
"area_90": 1974.0186535366647,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": true,
"skymap_hash": "7b9a8d07d092495af31c1bc20c5bd7c9",
"classification": {
"BBH": 0.9576683641601308,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.04233163583986921
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-20T21:30:32Z",
"superevent_id": "S230820bq",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-20T21:30:34.279778Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-20T21:30:34.279801Z",
"modified": "2023-08-20T21:30:34.283393Z"
}
},
{
"id": 8870,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 278011,
"topic": "igwn.gwalert",
"uuid": "d94708e3-f402-4803-a6b0-1752d93da64e",
"title": "S250623at - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250623at/view/"
},
"event": {
"far": 1.535353160368803e-05,
"time": "2025-06-23T07:36:38.313Z",
"group": "Burst",
"search": "AllSky",
"area_50": 7277.515197626029,
"area_90": 22744.018491577415,
"duration": 0.0625,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "1f240b99191dc6dd56bffd29db6eb4dd",
"classification": {},
"skymap_version": 0,
"central_frequency": 304.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-06-23T07:41:51Z",
"superevent_id": "S250623at",
"external_coinc": null
},
"message_text": "",
"published": "2025-06-23T07:41:52.773431Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-06-23T07:41:52.773451Z",
"modified": "2025-06-23T07:41:52.779211Z"
}
},
{
"id": 1283,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2280,
"topic": "igwn.gwalert",
"uuid": "659111c5-35e9-4237-9d58-86c3e41dd065",
"title": "S230821d - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230821d/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230821d/view/"
},
"event": {
"far": 2.302231223438866e-05,
"time": "2023-08-21T01:37:52.809Z",
"group": "CBC",
"search": "AllSky",
"area_50": 3338.7101206500215,
"area_90": 11333.821384931598,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.11414883276632545,
"HasMassGap": 0.28193905559779564,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "88ceb9ec5c6c3863a46c31e10806b7e1",
"classification": {
"BBH": 0.17837481436952676,
"BNS": 0.0,
"NSBH": 0.0043256040007434585,
"Terrestrial": 0.8172995816297298
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-21T01:42:49Z",
"superevent_id": "S230821d",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-21T01:42:51.152893Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-21T01:42:51.152915Z",
"modified": "2023-08-21T01:42:51.156674Z"
}
},
{
"id": 6442,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 150662,
"topic": "igwn.gwalert",
"uuid": "91f7120f-5e7a-4974-84b5-9476b0ee8adf",
"title": "S241130br - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241130br/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241130br/view/"
},
"event": {
"far": 1.208492e-05,
"time": "2024-11-30T12:13:36.326Z",
"group": "CBC",
"search": "AllSky",
"area_50": 316.04651327483015,
"area_90": 1483.031871088132,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.528215185419291,
"HasRemnant": 0.0002668707696693792
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "5ad354a7ec25aa15e0becf6c2c57b980",
"classification": {
"BBH": 0.0,
"BNS": 0.000876791,
"NSBH": 0.000354089,
"Terrestrial": 0.998769121
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-11-30T12:18:41Z",
"superevent_id": "S241130br",
"external_coinc": null
},
"message_text": "",
"published": "2024-11-30T12:18:42.661879Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-11-30T12:18:42.661904Z",
"modified": "2024-11-30T12:18:42.667841Z"
}
},
{
"id": 1285,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2282,
"topic": "igwn.gwalert",
"uuid": "ece748f3-bfe1-40c1-bb3f-521203685fd4",
"title": "S230821e - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230821e/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230821e/view/"
},
"event": {
"far": 1.312204767600633e-05,
"time": "2023-08-21T01:49:20.149Z",
"group": "CBC",
"search": "AllSky",
"area_50": 5937.163246223796,
"area_90": 19102.32336500616,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.145466491211954,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "dc926be2dbb1f0a87eaceb4421e454bf",
"classification": {
"BBH": 0.0003264478713909838,
"BNS": 0.010861351701762374,
"NSBH": 0.14262558901180455,
"Terrestrial": 0.846186611415042
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-21T01:54:18Z",
"superevent_id": "S230821e",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-21T01:54:19.812280Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-21T01:54:19.812300Z",
"modified": "2023-08-21T01:54:19.815635Z"
}
},
{
"id": 10636,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5782775,
"topic": "igwn.gwalert",
"uuid": "dbeda434-70be-41d5-b7a8-a0b13ee2f1de",
"title": "S250928ea - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250928ea/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250928ea/view/"
},
"event": {
"far": 2.0613e-05,
"time": "2025-09-28T18:00:36.024Z",
"group": "Burst",
"search": "AllSky",
"area_50": 531.6925242412742,
"area_90": 2065.9213076872875,
"duration": 0.152907,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "d9747b2254fe82875f10a80027e8a2fa",
"classification": {},
"skymap_version": 0,
"central_frequency": 1091.321411
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-09-28T18:08:49Z",
"superevent_id": "S250928ea",
"external_coinc": null
},
"message_text": "",
"published": "2025-09-28T18:08:50.195750Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-09-28T18:08:50.195776Z",
"modified": "2025-09-28T18:08:50.204273Z"
}
},
{
"id": 1287,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2284,
"topic": "igwn.gwalert",
"uuid": "c8c79c75-ea23-4747-bf6e-c53cd7f3af73",
"title": "S230821ak - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230821ak/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230821ak/view/"
},
"event": {
"far": 4.85206e-06,
"time": "2023-08-21T07:38:41.316Z",
"group": "Burst",
"search": "BBH",
"area_50": 922.3837160870726,
"area_90": 3302.620493905942,
"duration": 0.022249,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "8f4940232cdf734794c9540500028525",
"classification": {},
"skymap_version": 0,
"central_frequency": 65.872314
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-21T07:44:34Z",
"superevent_id": "S230821ak",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-21T07:44:35.006858Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-21T07:44:35.006877Z",
"modified": "2023-08-21T07:44:35.010542Z"
}
},
{
"id": 6444,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 150684,
"topic": "igwn.gwalert",
"uuid": "f894b74b-624f-4b07-be49-10803a44dc1c",
"title": "S241130by - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241130by/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S241130by/view/"
},
"event": {
"far": 2.205464889960668e-05,
"time": "2024-11-30T13:42:04.630Z",
"group": "CBC",
"search": "AllSky",
"area_50": 5708.875374726358,
"area_90": 15876.078592814436,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"L1",
"V1"
],
"significant": false,
"skymap_hash": "c4fbf0a7a7dbeac4394422be32f0190f",
"classification": {
"BBH": 0.04710355784842337,
"BNS": 4.637242442962463e-16,
"NSBH": 3.3210058163688285e-14,
"Terrestrial": 0.9528964421515429
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-11-30T13:47:08Z",
"superevent_id": "S241130by",
"external_coinc": null
},
"message_text": "",
"published": "2024-11-30T13:47:08.846069Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-11-30T13:47:08.846106Z",
"modified": "2024-11-30T13:47:08.857448Z"
}
}
]
}