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=8100&ordering=sequence_number",
"previous": "https://hermes.lco.global/api/v0/nonlocalizedeventsequence/?format=api&limit=100&offset=7900&ordering=sequence_number",
"results": [
{
"id": 9024,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 357190,
"topic": "igwn.gwalert",
"uuid": "5facf4e1-6242-4a0a-854c-649b9399a330",
"title": "S250704bg - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250704bg/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250704bg/view/"
},
"event": {
"far": 3.65592e-06,
"time": "2025-07-04T11:15:05.213Z",
"group": "Burst",
"search": "AllSky",
"area_50": 747.8106378831499,
"area_90": 3658.4809994754764,
"duration": 0.029204,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "778c47d7297943cd18162b39745780ab",
"classification": {},
"skymap_version": 0,
"central_frequency": 704.778198
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-07-04T11:21:58Z",
"superevent_id": "S250704bg",
"external_coinc": null
},
"message_text": "",
"published": "2025-07-04T11:21:58.952515Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-07-04T11:21:58.952535Z",
"modified": "2025-07-04T11:21:58.956018Z"
}
},
{
"id": 1948,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3380,
"topic": "igwn.gwalert",
"uuid": "1bf596e8-f5dd-4055-91b4-a0e0fa63d93b",
"title": "S230926j - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230926j/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230926j/view/"
},
"event": {
"far": 1.90955e-05,
"time": "2023-09-26T07:27:50.300Z",
"group": "Burst",
"search": "AllSky",
"area_50": 956.7947555407303,
"area_90": 3848.1613632932,
"duration": 0.007841,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "f4ff20064cc1446ba82c62413d294502",
"classification": {},
"skymap_version": 0,
"central_frequency": 186.876968
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-26T07:34:07Z",
"superevent_id": "S230926j",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-26T07:34:07.471648Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-26T07:34:07.471672Z",
"modified": "2023-09-26T07:34:07.477262Z"
}
},
{
"id": 6760,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 154742,
"topic": "igwn.gwalert",
"uuid": "75707edc-80b5-4625-9f6f-b3fcd6ba3671",
"title": "S241211hi - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S241211hi/view/"
},
"event": {
"far": 1.8513064503017948e-05,
"time": "2024-12-11T11:18:46.219Z",
"group": "Burst",
"search": "AllSky",
"area_50": 7214.568174235192,
"area_90": 22679.392880896154,
"duration": 0.125,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "fbeef2a8894a2f688c8ec3b13b06a14a",
"classification": {},
"skymap_version": 0,
"central_frequency": 459.7747735781914
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-11T11:24:04Z",
"superevent_id": "S241211hi",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-11T11:24:05.367254Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-11T11:24:05.367282Z",
"modified": "2024-12-11T11:24:05.378836Z"
}
},
{
"id": 1950,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3382,
"topic": "igwn.gwalert",
"uuid": "5d874824-a2aa-4d7e-b0d3-ad47c44afb74",
"title": "S230926l - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230926l/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230926l/view/"
},
"event": {
"far": 2.11339e-05,
"time": "2023-09-26T07:30:27.302Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1377.490695202828,
"area_90": 5710.973608839386,
"duration": 0.123597,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "913bb4114757494253b89fea2a95cb51",
"classification": {},
"skymap_version": 0,
"central_frequency": 122.711365
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-26T07:39:12Z",
"superevent_id": "S230926l",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-26T07:39:13.280275Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-26T07:39:13.280302Z",
"modified": "2023-09-26T07:39:13.285364Z"
}
},
{
"id": 10143,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5774574,
"topic": "igwn.gwalert",
"uuid": "1f5928f5-617c-4462-8aa5-29487a1d3918",
"title": "S250901cu - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250901cu/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250901cu/view/"
},
"event": {
"far": 5.555689769603065e-06,
"time": "2025-09-01T22:09:05.334Z",
"group": "CBC",
"search": "AllSky",
"area_50": 3781.8571653215186,
"area_90": 15557.14700763419,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.013929041972520236,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "ae5034850e0a3fc50ff084a37c629c7c",
"classification": {
"BBH": 0.2469287048335715,
"BNS": 5.0545663099995915e-14,
"NSBH": 3.851161326097596e-12,
"Terrestrial": 0.7530712951625268
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-09-01T22:14:03Z",
"superevent_id": "S250901cu",
"external_coinc": null
},
"message_text": "",
"published": "2025-09-01T22:14:04.272123Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-09-01T22:14:04.272141Z",
"modified": "2025-09-01T22:14:04.290125Z"
}
},
{
"id": 1952,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3384,
"topic": "igwn.gwalert",
"uuid": "94ab6c8a-712c-4014-95ea-f31cad06f9d6",
"title": "S230926o - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230926o/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230926o/view/"
},
"event": {
"far": 1.59104e-06,
"time": "2023-09-26T08:45:30.719Z",
"group": "Burst",
"search": "BBH",
"area_50": 2534.666808537724,
"area_90": 7888.520971339757,
"duration": 0.012842,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "03e97d887c099596118c85e1d180d9a4",
"classification": {},
"skymap_version": 0,
"central_frequency": 55.765285
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-26T08:52:52Z",
"superevent_id": "S230926o",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-26T08:52:53.362231Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-26T08:52:53.362258Z",
"modified": "2023-09-26T08:52:53.367996Z"
}
},
{
"id": 6762,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 154791,
"topic": "igwn.gwalert",
"uuid": "ac02d8b2-fb11-4d91-bedf-79b1bcc5c242",
"title": "S241211hy - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241211hy/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S241211hy/view/"
},
"event": {
"far": 7.164671940571367e-06,
"time": "2024-12-11T15:02:55.470Z",
"group": "CBC",
"search": "AllSky",
"area_50": 369.39411559856495,
"area_90": 1859.0354241427349,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.5340689772587917,
"HasMassGap": 0.7039668367319298,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "63c2fdc47737639cbc7221ed51ce9707",
"classification": {
"BBH": 0.0021408422466898023,
"BNS": 0.0,
"NSBH": 0.004991661057423167,
"Terrestrial": 0.992867496695887
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-11T15:07:59Z",
"superevent_id": "S241211hy",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-11T15:08:00.027142Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-11T15:08:00.027191Z",
"modified": "2024-12-11T15:08:00.089055Z"
}
},
{
"id": 1954,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3386,
"topic": "igwn.gwalert",
"uuid": "d70edbec-9e39-4165-8a08-e3787699792b",
"title": "S230926ac - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230926ac/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230926ac/view/"
},
"event": {
"far": 2.12104e-05,
"time": "2023-09-26T11:17:43.141Z",
"group": "Burst",
"search": "BBH",
"area_50": 1308.4587928842093,
"area_90": 4255.218781220617,
"duration": 0.006037,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "e0c58469ffa5fbdce49615d54a3625a6",
"classification": {},
"skymap_version": 0,
"central_frequency": 193.315033
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-26T11:23:50Z",
"superevent_id": "S230926ac",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-26T11:23:50.806507Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-26T11:23:50.806531Z",
"modified": "2023-09-26T11:23:50.811637Z"
}
},
{
"id": 9026,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 357625,
"topic": "igwn.gwalert",
"uuid": "178d8b74-fbcc-4e50-b284-d28bc34cf0c1",
"title": "S250704bj - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250704bj/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250704bj/view/"
},
"event": {
"far": 1.558993119193689e-05,
"time": "2025-07-04T12:53:03.541Z",
"group": "CBC",
"search": "AllSky",
"area_50": 528.5451730717324,
"area_90": 1829.660146560344,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "cb341350e7a3d6739f182540dc178755",
"classification": {
"BBH": 0.0709690898503573,
"BNS": 1.1420437812765758e-15,
"NSBH": 7.437945260134771e-14,
"Terrestrial": 0.9290309101495672
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-07-04T12:58:00Z",
"superevent_id": "S250704bj",
"external_coinc": null
},
"message_text": "",
"published": "2025-07-04T12:58:00.906714Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-07-04T12:58:00.906747Z",
"modified": "2025-07-04T12:58:00.910220Z"
}
},
{
"id": 6764,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 154828,
"topic": "igwn.gwalert",
"uuid": "61e6525f-7949-4fd5-9515-945af97986b5",
"title": "S241211jh - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241211jh/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241211jh/view/"
},
"event": {
"far": 4.265265e-06,
"time": "2024-12-11T18:21:52.258Z",
"group": "CBC",
"search": "AllSky",
"area_50": 238.51676279844847,
"area_90": 888.8119702786258,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "4eaa462b194aaf2527b7b338d02a960d",
"classification": {
"BBH": 0.187661736,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.812338264
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-11T18:26:58Z",
"superevent_id": "S241211jh",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-11T18:26:58.992431Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-11T18:26:58.992461Z",
"modified": "2024-12-11T18:26:59.001072Z"
}
},
{
"id": 1957,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3389,
"topic": "igwn.gwalert",
"uuid": "b37ee6f2-83a3-4a15-910a-fdcb7c96cf26",
"title": "S230926ae - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230926ae/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S230926ae/view/"
},
"event": {
"far": 1.447075283442882e-05,
"time": "2023-09-26T11:41:38.080Z",
"group": "CBC",
"search": "AllSky",
"area_50": 742.3552291892772,
"area_90": 2678.1860218688334,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "330989ee0a46791f6bbcd91f62e454f8",
"classification": {
"BBH": 0.11200264434933367,
"BNS": 3.154518178853479e-14,
"NSBH": 2.2154702218974836e-12,
"Terrestrial": 0.8879973556484193
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-26T11:46:38Z",
"superevent_id": "S230926ae",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-26T11:46:39.494201Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-26T11:46:39.494228Z",
"modified": "2023-09-26T11:46:39.499253Z"
}
},
{
"id": 1958,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3390,
"topic": "igwn.gwalert",
"uuid": "c86b4d63-0bb1-4c4f-8940-e531faed2a85",
"title": "S230926af - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230926af/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230926af/view/"
},
"event": {
"far": 1.48212637504432e-05,
"time": "2023-09-26T11:43:43.626Z",
"group": "CBC",
"search": "AllSky",
"area_50": 585.8269643573946,
"area_90": 2523.7559911499793,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.04191751097754533,
"HasMassGap": 0.3461992076241122,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "bd1113219c10b779127bac31a71ce428",
"classification": {
"BBH": 0.0012413954191170431,
"BNS": 0.0,
"NSBH": 0.001957222950250627,
"Terrestrial": 0.9968013816306324
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-26T11:48:44Z",
"superevent_id": "S230926af",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-26T11:48:45.756107Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-26T11:48:45.756195Z",
"modified": "2023-09-26T11:48:45.762341Z"
}
},
{
"id": 10670,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5783091,
"topic": "igwn.gwalert",
"uuid": "c741a9fa-6ff1-44ca-a5ab-aba04a8d4d2b",
"title": "S250929cb - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250929cb/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250929cb/view/"
},
"event": {
"far": 8.695863600712044e-06,
"time": "2025-09-29T22:29:32.219Z",
"group": "CBC",
"search": "AllSky",
"area_50": 250.37178553705627,
"area_90": 973.1609816223481,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.1184920634920635,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "7092c962264c51cd7e75d1df7a467700",
"classification": {
"BBH": 0.0,
"BNS": 0.003890515013271657,
"NSBH": 0.0,
"Terrestrial": 0.9961094849867284
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-09-29T22:34:32Z",
"superevent_id": "S250929cb",
"external_coinc": null
},
"message_text": "",
"published": "2025-09-29T22:34:33.818027Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-09-29T22:34:33.818050Z",
"modified": "2025-09-29T22:34:33.823309Z"
}
},
{
"id": 1961,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3397,
"topic": "igwn.gwalert",
"uuid": "e10b7803-82d8-4529-8be2-c4b31bd361f2",
"title": "S230926at - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230926at/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230926at/view/"
},
"event": {
"far": 2.18674e-06,
"time": "2023-09-26T22:45:27.918Z",
"group": "Burst",
"search": "BBH",
"area_50": 881.2583274717254,
"area_90": 2971.0995040475314,
"duration": 0.013127,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "c3a354a43590edd1a8e701db110a9518",
"classification": {},
"skymap_version": 0,
"central_frequency": 50.436852
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-26T22:51:07Z",
"superevent_id": "S230926at",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-26T22:51:08.743886Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-26T22:51:08.743915Z",
"modified": "2023-09-26T22:51:08.749467Z"
}
},
{
"id": 6766,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 154840,
"topic": "igwn.gwalert",
"uuid": "ff7ede79-4c8d-4827-a030-b868a9d3a54f",
"title": "S241211jl - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241211jl/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241211jl/view/"
},
"event": {
"far": 1.88238e-06,
"time": "2024-12-11T19:05:46.693Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1085.206683258039,
"area_90": 3563.640817566615,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 7.12281962759652e-05,
"HasMassGap": 0.31293818283639263,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "5b46f2942a478f8c2bb11c82ed0ea72c",
"classification": {
"BBH": 0.421841031,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.578158969
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-11T19:10:54Z",
"superevent_id": "S241211jl",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-11T19:10:55.055856Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-11T19:10:55.055881Z",
"modified": "2024-12-11T19:10:55.070690Z"
}
},
{
"id": 1963,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3399,
"topic": "igwn.gwalert",
"uuid": "18549038-5222-4c16-8e58-fc8d839b7ba9",
"title": "S230927g - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230927g/files/olib.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230927g/view/"
},
"event": {
"far": 7.193289567111437e-07,
"time": "2023-09-27T02:49:41.762Z",
"group": "Burst",
"search": "AllSky",
"area_50": 127.62508992492305,
"area_90": 492.4030904748265,
"duration": 0.0012404485752365076,
"pipeline": "oLIB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "aefd2d54f57f0459ad7d386ca36f8254",
"classification": {},
"skymap_version": 0,
"central_frequency": 493.4271338998489
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-27T03:13:54Z",
"superevent_id": "S230927g",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-27T03:13:55.346540Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-27T03:13:55.346570Z",
"modified": "2023-09-27T03:13:55.352375Z"
}
},
{
"id": 9028,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 357788,
"topic": "igwn.gwalert",
"uuid": "ffeef344-4798-482f-95c8-0b4f0c13df4e",
"title": "S250704bm - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250704bm/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250704bm/view/"
},
"event": {
"far": 1.367991e-06,
"time": "2025-07-04T13:28:20.508Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1101.1532625170512,
"area_90": 3994.198457559944,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.015682288725766987,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "e2781b63f4d77468596fa49d3d4fa3aa",
"classification": {
"BBH": 0.5204432805434954,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.4795567194565046
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-07-04T13:33:21Z",
"superevent_id": "S250704bm",
"external_coinc": null
},
"message_text": "",
"published": "2025-07-04T13:33:22.901841Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-07-04T13:33:22.901861Z",
"modified": "2025-07-04T13:33:22.905377Z"
}
},
{
"id": 1965,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3402,
"topic": "igwn.gwalert",
"uuid": "db8c0ac5-99ac-461b-aa23-f90b62655c28",
"title": "S230927l - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230927l/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S230927l/view/"
},
"event": {
"far": 1.07500195412058e-08,
"time": "2023-09-27T04:37:29.118Z",
"group": "CBC",
"search": "AllSky",
"area_50": 358.7455774749482,
"area_90": 1850.642487690623,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": true,
"skymap_hash": "381d935f65912dc41f0c1e4cf60d3397",
"classification": {
"BBH": 0.9757501063003873,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.024249893699612723
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-27T04:42:38Z",
"superevent_id": "S230927l",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-27T04:42:39.260081Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-27T04:42:39.260107Z",
"modified": "2023-09-27T04:42:39.265333Z"
}
},
{
"id": 6768,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 154853,
"topic": "igwn.gwalert",
"uuid": "956bf33c-c9da-4230-aeb8-937bd589af89",
"title": "S241211jq - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241211jq/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241211jq/view/"
},
"event": {
"far": 6.97455e-07,
"time": "2024-12-11T19:44:48.607Z",
"group": "Burst",
"search": "AllSky",
"area_50": 49.51832506745886,
"area_90": 207.51535377846108,
"duration": 0.0016,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "640723f3b1b8817ba5928aff8d4c329e",
"classification": {},
"skymap_version": 0,
"central_frequency": 901.207764
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-11T19:55:04Z",
"superevent_id": "S241211jq",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-11T19:55:04.824562Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-11T19:55:04.824587Z",
"modified": "2024-12-11T19:55:04.834349Z"
}
},
{
"id": 10145,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5774618,
"topic": "igwn.gwalert",
"uuid": "73b520d8-388b-48f8-ab80-e30e398c2f5e",
"title": "S250902h - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250902h/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250902h/view/"
},
"event": {
"far": 1.97757447856677e-05,
"time": "2025-09-02T00:55:59.562Z",
"group": "CBC",
"search": "AllSky",
"area_50": 770.8912131264568,
"area_90": 3918.662029490939,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.015682288725766987,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "d61b92f5ddc123ba3f4753f772651f83",
"classification": {
"BBH": 0.05330877340471358,
"BNS": 2.449448440675167e-14,
"NSBH": 5.426131663619432e-10,
"Terrestrial": 0.9466912260526488
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-09-02T01:01:02Z",
"superevent_id": "S250902h",
"external_coinc": null
},
"message_text": "",
"published": "2025-09-02T01:01:03.732592Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-09-02T01:01:03.732614Z",
"modified": "2025-09-02T01:01:03.742498Z"
}
},
{
"id": 6770,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 154864,
"topic": "igwn.gwalert",
"uuid": "a65b62d9-d7be-458a-a3ca-eea5574289e0",
"title": "S241211ka - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241211ka/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241211ka/view/"
},
"event": {
"far": 2.293494e-05,
"time": "2024-12-11T20:55:02.225Z",
"group": "CBC",
"search": "AllSky",
"area_50": 480.0759650607875,
"area_90": 2138.520207998053,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.7149220290053907,
"HasRemnant": 0.9368985362763999
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "4f9e26fa20bf5c299e9625ee63a28f76",
"classification": {
"BBH": 0.0,
"BNS": 0.000506583,
"NSBH": 0.000168861,
"Terrestrial": 0.999324556
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-11T21:00:08Z",
"superevent_id": "S241211ka",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-11T21:00:09.076687Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-11T21:00:09.076729Z",
"modified": "2024-12-11T21:00:09.087997Z"
}
},
{
"id": 1970,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3415,
"topic": "igwn.gwalert",
"uuid": "711c7cdc-bf56-4adf-8400-e3451fb07675",
"title": "S230927ae - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230927ae/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230927ae/view/"
},
"event": {
"far": 2.05025e-05,
"time": "2023-09-27T08:30:12.889Z",
"group": "Burst",
"search": "AllSky",
"area_50": 384.3964895067145,
"area_90": 1630.7475526452977,
"duration": 0.039929,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "291e3dacc52ee721fbaff19f1db48541",
"classification": {},
"skymap_version": 0,
"central_frequency": 229.891113
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-27T08:32:52Z",
"superevent_id": "S230927ae",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:53:59.659435Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:53:59.659456Z",
"modified": "2023-09-28T20:53:59.665313Z"
}
},
{
"id": 9030,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 358028,
"topic": "igwn.gwalert",
"uuid": "e783bc66-51c3-435a-b23e-e5651004a768",
"title": "S250704bv - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250704bv/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250704bv/view/"
},
"event": {
"far": 1.172854747834552e-05,
"time": "2025-07-04T14:21:07.599Z",
"group": "CBC",
"search": "AllSky",
"area_50": 338.18288316727467,
"area_90": 1222.4311942500647,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "84e7c327f67767155bf4581ae15e5ae1",
"classification": {
"BBH": 0.09611090922563396,
"BNS": 1.372457636334308e-15,
"NSBH": 9.020627594375779e-14,
"Terrestrial": 0.9038890907742745
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-07-04T14:26:08Z",
"superevent_id": "S250704bv",
"external_coinc": null
},
"message_text": "",
"published": "2025-07-04T14:26:09.553484Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-07-04T14:26:09.553505Z",
"modified": "2025-07-04T14:26:09.556682Z"
}
},
{
"id": 1972,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3418,
"topic": "igwn.gwalert",
"uuid": "c467fa27-c4a5-46fb-9f6e-46e04a5837db",
"title": "S230927ah - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230927ah/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230927ah/view/"
},
"event": {
"far": 8.81474e-06,
"time": "2023-09-27T10:11:50.566Z",
"group": "Burst",
"search": "BBH",
"area_50": 2392.826182497037,
"area_90": 7508.3209500591,
"duration": 0.012391,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "b375989d51116fe1524e1655e6dafb90",
"classification": {},
"skymap_version": 0,
"central_frequency": 56.392086
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-27T10:17:28Z",
"superevent_id": "S230927ah",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:05.647228Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:05.647264Z",
"modified": "2023-09-28T20:54:05.737311Z"
}
},
{
"id": 6772,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 154984,
"topic": "igwn.gwalert",
"uuid": "1630a4d9-fb69-40a5-9091-221948e3d000",
"title": "S241212bq - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241212bq/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S241212bq/view/"
},
"event": {
"far": 2.146429094886755e-05,
"time": "2024-12-12T07:59:58.009Z",
"group": "CBC",
"search": "AllSky",
"area_50": 438.11128280022905,
"area_90": 2958.5100993693636,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "c85de1adcb3d063b6bc71e7bb69985ac",
"classification": {
"BBH": 0.05312731800608251,
"BNS": 3.735397223893712e-15,
"NSBH": 2.6360812619420844e-13,
"Terrestrial": 0.9468726819936502
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-12T08:05:00Z",
"superevent_id": "S241212bq",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-12T08:05:02.152170Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-12T08:05:02.152200Z",
"modified": "2024-12-12T08:05:02.167032Z"
}
},
{
"id": 10921,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5786712,
"topic": "igwn.gwalert",
"uuid": "c0a4c5b6-d86a-4135-8319-1b30dda250f0",
"title": "S251011ax - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S251011ax/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S251011ax/view/"
},
"event": {
"far": 1.984076e-06,
"time": "2025-10-11T09:45:56.197Z",
"group": "CBC",
"search": "AllSky",
"area_50": 781.8020305142021,
"area_90": 3447.8182945274743,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "230eb501013e8151ff0cb22fc2262218",
"classification": {
"BBH": 0.4023119800931664,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.5976880199068336
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-10-11T09:51:05Z",
"superevent_id": "S251011ax",
"external_coinc": null
},
"message_text": "",
"published": "2025-10-11T09:51:06.602245Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-10-11T09:51:06.602267Z",
"modified": "2025-10-11T09:51:06.611887Z"
}
},
{
"id": 6774,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 154994,
"topic": "igwn.gwalert",
"uuid": "b0f267a4-14b6-49d7-82e4-28ae2cd02cbc",
"title": "S241212ca - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241212ca/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241212ca/view/"
},
"event": {
"far": 5.749737918925266e-06,
"time": "2024-12-12T08:30:31.863Z",
"group": "CBC",
"search": "AllSky",
"area_50": 542.8131650403222,
"area_90": 2530.470340311668,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "83f91c2847745cdc8c67e6716e84db7a",
"classification": {
"BBH": 0.1952176089297907,
"BNS": 4.2785549378463157e-16,
"NSBH": 2.8402881678824903e-14,
"Terrestrial": 0.8047823910701805
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-12T08:35:34Z",
"superevent_id": "S241212ca",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-12T08:35:35.333647Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-12T08:35:35.333675Z",
"modified": "2024-12-12T08:35:35.345363Z"
}
},
{
"id": 1976,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3424,
"topic": "igwn.gwalert",
"uuid": "0f0c408d-5aaf-4d2e-a462-f901d387c493",
"title": "S230927bh - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230927bh/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230927bh/view/"
},
"event": {
"far": 1.88814501124217e-05,
"time": "2023-09-27T16:02:41.652Z",
"group": "CBC",
"search": "AllSky",
"area_50": 481.64964064555846,
"area_90": 1974.8579471818757,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.012712917913729273,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "c7e4db748118e8eba234f7501e7bb083",
"classification": {
"BBH": 0.07455205560940802,
"BNS": 6.8262012827052866e-15,
"NSBH": 4.4407060877502884e-13,
"Terrestrial": 0.9254479443901411
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-27T16:03:08Z",
"superevent_id": "S230927bh",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:06.273679Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:06.273700Z",
"modified": "2023-09-28T20:54:06.278943Z"
}
},
{
"id": 1977,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3425,
"topic": "igwn.gwalert",
"uuid": "e14134d1-88af-4d28-8aba-5a420785de0a",
"title": "S230927ax - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230927ax/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230927ax/view/"
},
"event": {
"far": 1.681491710355148e-05,
"time": "2023-09-27T14:48:55.770Z",
"group": "CBC",
"search": "AllSky",
"area_50": 556.8713335976092,
"area_90": 2364.2901985598573,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.014816639299397917,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "d3f153e45f058a624ad16950505d983d",
"classification": {
"BBH": 0.0,
"BNS": 0.00017430736989747,
"NSBH": 0.0011747392880928262,
"Terrestrial": 0.9986509533420097
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-27T14:49:25Z",
"superevent_id": "S230927ax",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:06.321425Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:06.321446Z",
"modified": "2023-09-28T20:54:06.326765Z"
}
},
{
"id": 1978,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3426,
"topic": "igwn.gwalert",
"uuid": "c067104b-82ce-4c54-9f35-af820027b049",
"title": "S230927ba - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230927ba/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230927ba/view/"
},
"event": {
"far": 2.094765659421682e-05,
"time": "2023-09-27T15:05:51.055Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1054.782288619134,
"area_90": 3451.1754691083192,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.04984126984126984,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "17414f66edb768ddb2f279a7f83a6349",
"classification": {
"BBH": 0.00020794792111685872,
"BNS": 0.00717713416663128,
"NSBH": 0.09696686727292624,
"Terrestrial": 0.8956480506393256
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-27T15:10:53Z",
"superevent_id": "S230927ba",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:13.300432Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:13.300455Z",
"modified": "2023-09-28T20:54:13.305718Z"
}
},
{
"id": 9032,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 359358,
"topic": "igwn.gwalert",
"uuid": "563e6baf-610d-4832-962f-9d9ecb47abe0",
"title": "S250704cw - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250704cw/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250704cw/view/"
},
"event": {
"far": 1.543937485824155e-07,
"time": "2025-07-04T19:17:24.133Z",
"group": "CBC",
"search": "AllSky",
"area_50": 204.99747284282753,
"area_90": 1131.7874805672586,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.4334474028354578,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "9a00b22ef8aa552ce697ea1121ed0b7e",
"classification": {
"BBH": 0.0,
"BNS": 0.01028045394630056,
"NSBH": 0.016898586640552604,
"Terrestrial": 0.9728209594131468
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-07-04T19:22:29Z",
"superevent_id": "S250704cw",
"external_coinc": null
},
"message_text": "",
"published": "2025-07-04T19:22:30.604514Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-07-04T19:22:30.604539Z",
"modified": "2025-07-04T19:22:30.607618Z"
}
},
{
"id": 1980,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3428,
"topic": "igwn.gwalert",
"uuid": "2c8d8edc-4cc0-4ac5-b10e-4c4ec53df6e9",
"title": "S230927an - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230927an/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230927an/view/"
},
"event": {
"far": 1.145318947237683e-05,
"time": "2023-09-27T13:44:27.010Z",
"group": "CBC",
"search": "AllSky",
"area_50": 721.1630646476953,
"area_90": 8359.364706303226,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.0,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "20e6c6ea9668168ffaa3ee8423a518f8",
"classification": {
"BBH": 0.0,
"BNS": 0.07932982305857511,
"NSBH": 0.010906626373933782,
"Terrestrial": 0.9097635505674911
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-27T13:49:27Z",
"superevent_id": "S230927an",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:13.434223Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:13.434243Z",
"modified": "2023-09-28T20:54:13.481862Z"
}
},
{
"id": 1981,
"sequence_number": 2,
"sequence_type": "INITIAL",
"message": {
"id": 3429,
"topic": "igwn.gwalert",
"uuid": "df257fcb-e6c6-4105-971c-c39719c5b8a4",
"title": "S230927be - INITIAL",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230927be/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230927be/view/"
},
"event": {
"far": 3.167545842243851e-10,
"time": "2023-09-27T15:38:32.919Z",
"group": "CBC",
"search": "AllSky",
"area_50": 136.28030564116324,
"area_90": 527.0764091926128,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": true,
"skymap_hash": "b902fc512be53f92f4abeb16a3f6e0d3",
"classification": {
"BBH": 0.9996578739974026,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.00034212600259742043
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "INITIAL",
"sequence_num": 2,
"time_created": "2023-09-27T16:04:58Z",
"superevent_id": "S230927be",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:13.526588Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:13.526608Z",
"modified": "2023-09-28T20:54:13.531751Z"
}
},
{
"id": 6776,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 154997,
"topic": "igwn.gwalert",
"uuid": "3874b502-e7e3-44a6-a755-5c26993274af",
"title": "S241212cb - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241212cb/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241212cb/view/"
},
"event": {
"far": 1.234749232430132e-05,
"time": "2024-12-12T08:35:45.797Z",
"group": "CBC",
"search": "AllSky",
"area_50": 518.526105182024,
"area_90": 2155.3060809022772,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "53db8f792c15e215d01daeeb73e636e0",
"classification": {
"BBH": 0.09713854369703367,
"BNS": 5.430596432688632e-19,
"NSBH": 3.752167838340814e-17,
"Terrestrial": 0.9028614563029663
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-12T08:40:46Z",
"superevent_id": "S241212cb",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-12T08:40:47.383573Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-12T08:40:47.383602Z",
"modified": "2024-12-12T08:40:47.395110Z"
}
},
{
"id": 1984,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3432,
"topic": "igwn.gwalert",
"uuid": "6bfab9fd-afd8-45f1-a62d-08c13dba8081",
"title": "S230927aq - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230927aq/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230927aq/view/"
},
"event": {
"far": 1.658970459416795e-05,
"time": "2023-09-27T13:49:15.705Z",
"group": "CBC",
"search": "AllSky",
"area_50": 988.2682672361492,
"area_90": 3765.0712924172954,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.024214082713417944,
"HasMassGap": 0.26719122043901594,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "6b5737fceb839b975c1dd33ab8087c8a",
"classification": {
"BBH": 0.03992759023161618,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9600724097683838
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-27T13:54:27Z",
"superevent_id": "S230927aq",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:19.838465Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:19.838487Z",
"modified": "2023-09-28T20:54:19.844311Z"
}
},
{
"id": 1985,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3433,
"topic": "igwn.gwalert",
"uuid": "47e12dd7-db82-49d3-b101-5bd7d1a5fc58",
"title": "S230928r - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230928r/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230928r/view/"
},
"event": {
"far": 1.83963e-05,
"time": "2023-09-28T07:18:38.615Z",
"group": "Burst",
"search": "AllSky",
"area_50": 671.4349161689337,
"area_90": 2313.9325798471878,
"duration": 0.008964,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "4935bcefde1976450f9002056c72cf67",
"classification": {},
"skymap_version": 0,
"central_frequency": 179.484604
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-28T07:20:20Z",
"superevent_id": "S230928r",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:19.877913Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:19.877933Z",
"modified": "2023-09-28T20:54:19.883437Z"
}
},
{
"id": 10147,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5774653,
"topic": "igwn.gwalert",
"uuid": "e3938bcf-2946-41a7-b857-07f81722baf0",
"title": "S250902o - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250902o/view/"
},
"event": {
"far": 1.9309709536529863e-05,
"time": "2025-09-02T03:13:40.669Z",
"group": "Burst",
"search": "AllSky",
"area_50": 4626.186572403952,
"area_90": 20673.481068841465,
"duration": 0.15625,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "2cdce68d46e7bf70c9341e663152da86",
"classification": {},
"skymap_version": 0,
"central_frequency": 112.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-09-02T03:19:10Z",
"superevent_id": "S250902o",
"external_coinc": null
},
"message_text": "",
"published": "2025-09-02T03:19:10.901676Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-09-02T03:19:10.901697Z",
"modified": "2025-09-02T03:19:10.911157Z"
}
},
{
"id": 6778,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 155000,
"topic": "igwn.gwalert",
"uuid": "802a5074-02be-4691-8cb1-7311855591ef",
"title": "S241212ce - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241212ce/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241212ce/view/"
},
"event": {
"far": 1.190159028852358e-05,
"time": "2024-12-12T08:45:33.291Z",
"group": "CBC",
"search": "AllSky",
"area_50": 686.9618486053402,
"area_90": 3532.586952693802,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "3275f2348310f393aefd2cf1385f3bfa",
"classification": {
"BBH": 0.10048022123461664,
"BNS": 2.2578828467926992e-13,
"NSBH": 1.571436108524097e-11,
"Terrestrial": 0.8995197787494432
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-12T08:50:35Z",
"superevent_id": "S241212ce",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-12T08:50:36.104485Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-12T08:50:36.104513Z",
"modified": "2024-12-12T08:50:36.112303Z"
}
},
{
"id": 9034,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 360228,
"topic": "igwn.gwalert",
"uuid": "3a793b5a-a9f3-49d9-b59a-e3c071910f4c",
"title": "S250704dw - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250704dw/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250704dw/view/"
},
"event": {
"far": 1.409241145214289e-06,
"time": "2025-07-04T22:32:22.440Z",
"group": "CBC",
"search": "AllSky",
"area_50": 500.6911152212868,
"area_90": 1630.9573760566,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.9119728332946735,
"HasMassGap": 0.019689308741940317,
"HasRemnant": 0.3690756806309931
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "fe6080728040ed57b7cef92b511d0177",
"classification": {
"BBH": 0.0007326984992734616,
"BNS": 0.0,
"NSBH": 0.010672633853309547,
"Terrestrial": 0.988594667647417
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-07-04T22:37:23Z",
"superevent_id": "S250704dw",
"external_coinc": null
},
"message_text": "",
"published": "2025-07-04T22:37:24.609039Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-07-04T22:37:24.609060Z",
"modified": "2025-07-04T22:37:24.612592Z"
}
},
{
"id": 1989,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3437,
"topic": "igwn.gwalert",
"uuid": "89e9c4f1-6090-4760-b4fa-f2e95e8bb085",
"title": "S230927bp - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230927bp/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230927bp/view/"
},
"event": {
"far": 1.180186611723138e-05,
"time": "2023-09-27T23:12:16.562Z",
"group": "CBC",
"search": "AllSky",
"area_50": 8061.41546225326,
"area_90": 24218.657426213435,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"L1"
],
"significant": false,
"skymap_hash": "66eb12a79c80beb3699b40eb337302a4",
"classification": {
"BBH": 0.1449095256648014,
"BNS": 4.302446132363312e-23,
"NSBH": 3.722886178203976e-21,
"Terrestrial": 0.8550904743351986
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-27T23:12:52Z",
"superevent_id": "S230927bp",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:25.661796Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:25.661816Z",
"modified": "2023-09-28T20:54:25.667331Z"
}
},
{
"id": 6780,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 155101,
"topic": "igwn.gwalert",
"uuid": "abbe9e69-4047-4c6e-9c30-388d98e4e7be",
"title": "S241212dz - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241212dz/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S241212dz/view/"
},
"event": {
"far": 1.559944416048182e-05,
"time": "2024-12-12T15:38:58.846Z",
"group": "CBC",
"search": "AllSky",
"area_50": 472.7321456651898,
"area_90": 1640.3994295652258,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "a8f6895927aaa2d9ba0d0242e07a6c7e",
"classification": {
"BBH": 0.06939259219505914,
"BNS": 1.6329060090722358e-17,
"NSBH": 1.1013139276639064e-15,
"Terrestrial": 0.9306074078049398
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-12T15:44:03Z",
"superevent_id": "S241212dz",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-12T15:44:03.932982Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-12T15:44:03.933011Z",
"modified": "2024-12-12T15:44:03.943706Z"
}
},
{
"id": 10672,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5783096,
"topic": "igwn.gwalert",
"uuid": "c71fc138-660b-4667-b5c2-54d5bef128b3",
"title": "S250929cd - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250929cd/view/"
},
"event": {
"far": 8.562622905877424e-06,
"time": "2025-09-29T22:51:00.561Z",
"group": "Burst",
"search": "AllSky",
"area_50": 7269.122261173917,
"area_90": 22728.071912318403,
"duration": 0.125,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "c7dfb3874d46ad8bf592a7750f7f92d7",
"classification": {},
"skymap_version": 0,
"central_frequency": 304.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-09-29T22:56:16Z",
"superevent_id": "S250929cd",
"external_coinc": null
},
"message_text": "",
"published": "2025-09-29T22:56:18.197882Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-09-29T22:56:18.197903Z",
"modified": "2025-09-29T22:56:18.205128Z"
}
},
{
"id": 1992,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3440,
"topic": "igwn.gwalert",
"uuid": "f071b86f-af9d-4758-aee3-21e91a005376",
"title": "S230928h - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230928h/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230928h/view/"
},
"event": {
"far": 2.661359985722811e-06,
"time": "2023-09-28T05:41:31.578Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1475.897875103837,
"area_90": 6885.565065312415,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.05367326492825584,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "c86223cb0f7bdd471544a534bd914e99",
"classification": {
"BBH": 0.38917153821040884,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.6108284617895912
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-28T05:46:30Z",
"superevent_id": "S230928h",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:26.032417Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:26.032438Z",
"modified": "2023-09-28T20:54:26.037876Z"
}
},
{
"id": 9036,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 362650,
"topic": "igwn.gwalert",
"uuid": "7448100c-6007-4fca-b3bc-3acef3daefc4",
"title": "S250705ak - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250705ak/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250705ak/view/"
},
"event": {
"far": 3.86048e-06,
"time": "2025-07-05T07:26:16.374Z",
"group": "Burst",
"search": "AllSky",
"area_50": 847.6865816632786,
"area_90": 2836.8125208137444,
"duration": 0.016539,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "b2cc5168dc2d6ca3e094c69743b0e751",
"classification": {},
"skymap_version": 0,
"central_frequency": 666.33252
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-07-05T07:32:23Z",
"superevent_id": "S250705ak",
"external_coinc": null
},
"message_text": "",
"published": "2025-07-05T07:32:24.478330Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-07-05T07:32:24.478349Z",
"modified": "2025-07-05T07:32:24.481738Z"
}
},
{
"id": 6783,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 155242,
"topic": "igwn.gwalert",
"uuid": "6d058f7a-93e8-482d-a629-17cad2a4fa25",
"title": "S241213n - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241213n/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241213n/view/"
},
"event": {
"far": 1.634390303680982e-05,
"time": "2024-12-13T01:22:24.413Z",
"group": "CBC",
"search": "AllSky",
"area_50": 267.3674818525824,
"area_90": 986.7995033570294,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.671619792000657,
"HasRemnant": 0.629610289815048
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "c6e9d04827c270f892533792bb5ba06e",
"classification": {
"BBH": 0.00042339143351841546,
"BNS": 0.0,
"NSBH": 0.002604246858893256,
"Terrestrial": 0.9969723617075883
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-13T01:27:25Z",
"superevent_id": "S241213n",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-13T01:27:26.443937Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-13T01:27:26.443963Z",
"modified": "2024-12-13T01:27:26.451290Z"
}
},
{
"id": 6784,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 155243,
"topic": "igwn.gwalert",
"uuid": "5c3a6b34-63bd-4b34-ac49-552fb7147fbb",
"title": "S241213o - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241213o/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241213o/view/"
},
"event": {
"far": 4.956575733943178e-06,
"time": "2024-12-13T01:26:16.360Z",
"group": "CBC",
"search": "AllSky",
"area_50": 322.4985831723909,
"area_90": 1136.1937722046173,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.9088986359796666,
"HasMassGap": 0.15860734724511816,
"HasRemnant": 0.00040606458967831646
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "0d5a241ba4d9dbd6595b16e1274c25b1",
"classification": {
"BBH": 0.0027529811242956513,
"BNS": 0.0,
"NSBH": 0.006089166643572628,
"Terrestrial": 0.9911578522321317
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-13T01:31:16Z",
"superevent_id": "S241213o",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-13T01:31:18.139415Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-13T01:31:18.139444Z",
"modified": "2024-12-13T01:31:18.150080Z"
}
},
{
"id": 1996,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3444,
"topic": "igwn.gwalert",
"uuid": "6f8bdd1e-38d4-4092-afad-e598f08f60d7",
"title": "S230928ar - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230928ar/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230928ar/view/"
},
"event": {
"far": 8.71996e-06,
"time": "2023-09-28T13:40:01.188Z",
"group": "Burst",
"search": "BBH",
"area_50": 1865.749773304424,
"area_90": 6073.968110393215,
"duration": 0.013159,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "e85d08b7df69e291c4009998b18b155b",
"classification": {},
"skymap_version": 0,
"central_frequency": 51.568607
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-28T13:46:02Z",
"superevent_id": "S230928ar",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:31.533078Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:31.533098Z",
"modified": "2023-09-28T20:54:31.538344Z"
}
},
{
"id": 1997,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3445,
"topic": "igwn.gwalert",
"uuid": "dfe9e0d0-5f9c-47d2-a4a2-8742919c5375",
"title": "S230928af - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230928af/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230928af/view/"
},
"event": {
"far": 3.543216779133972e-06,
"time": "2023-09-28T10:10:25.371Z",
"group": "CBC",
"search": "AllSky",
"area_50": 584.7778473008806,
"area_90": 2124.2522160294634,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.045197539302802466,
"HasRemnant": 0.07712956452029447
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "f0837bce517a52cfc5d46d7aa6b46ce8",
"classification": {
"BBH": 0.002975267619079337,
"BNS": 0.0,
"NSBH": 0.010686374815633353,
"Terrestrial": 0.9863383575652873
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-28T10:15:25Z",
"superevent_id": "S230928af",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:31.585737Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:31.585756Z",
"modified": "2023-09-28T20:54:31.592244Z"
}
},
{
"id": 10149,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5774658,
"topic": "igwn.gwalert",
"uuid": "30b2d6e6-b89f-4343-befd-75f6cd7224ee",
"title": "S250902u - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250902u/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250902u/view/"
},
"event": {
"far": 1.31563e-05,
"time": "2025-09-02T03:35:20.824Z",
"group": "CBC",
"search": "BBH",
"area_50": 1970.66147895582,
"area_90": 6173.844054173344,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "afac1dcbb3e959e094a90067b72258f7",
"classification": {
"BBH": 0.0011944318442451696,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9988055681557548
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-09-02T03:41:20Z",
"superevent_id": "S250902u",
"external_coinc": null
},
"message_text": "",
"published": "2025-09-02T03:41:21.638441Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-09-02T03:41:21.638476Z",
"modified": "2025-09-02T03:41:21.658985Z"
}
},
{
"id": 1999,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3447,
"topic": "igwn.gwalert",
"uuid": "05f78685-19ff-43fa-8966-c37b75bf4179",
"title": "S230928q - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230928q/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230928q/view/"
},
"event": {
"far": 1.269038511964027e-05,
"time": "2023-09-28T07:19:50.362Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1329.6509574257914,
"area_90": 5630.82106572172,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.7302907767790859,
"HasMassGap": 0.20193748931542377,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "5458a1264158fdfb74e76d2f3f02c483",
"classification": {
"BBH": 0.05195601114645304,
"BNS": 0.0,
"NSBH": 0.1110344080463285,
"Terrestrial": 0.8370095808072184
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-28T07:20:20Z",
"superevent_id": "S230928q",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:31.687069Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:31.687088Z",
"modified": "2023-09-28T20:54:31.692847Z"
}
},
{
"id": 2000,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3448,
"topic": "igwn.gwalert",
"uuid": "5d941256-fd3f-4e07-a6dd-0d5b683ef9b5",
"title": "S230928aj - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230928aj/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S230928aj/view/"
},
"event": {
"far": 1.74531222946288e-05,
"time": "2023-09-28T10:51:54.384Z",
"group": "CBC",
"search": "AllSky",
"area_50": 971.6922177432289,
"area_90": 3757.5176496103945,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.04210230956782681,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "f3d1e0956ae7fb75fad992b02577228e",
"classification": {
"BBH": 0.08813338451487787,
"BNS": 1.784823678850466e-13,
"NSBH": 1.2211940024929058e-11,
"Terrestrial": 0.9118666154727317
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-28T10:52:18Z",
"superevent_id": "S230928aj",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:31.736265Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:31.736285Z",
"modified": "2023-09-28T20:54:31.741529Z"
}
},
{
"id": 2001,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3449,
"topic": "igwn.gwalert",
"uuid": "503951d3-9184-4c53-9667-8aaee4d7d481",
"title": "S230928ao - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230928ao/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230928ao/view/"
},
"event": {
"far": 2.222219700342976e-05,
"time": "2023-09-28T12:22:41.100Z",
"group": "CBC",
"search": "AllSky",
"area_50": 101.64632881299619,
"area_90": 452.16945135751615,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.10175232275464477,
"HasRemnant": 0.5454918813127934
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "32266fe6172789c2677d1d9655d4cd6d",
"classification": {
"BBH": 0.0037130469882621503,
"BNS": 0.0002827336082306574,
"NSBH": 0.054044355460175775,
"Terrestrial": 0.9419598639433314
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-28T12:23:05Z",
"superevent_id": "S230928ao",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:31.784810Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:31.784830Z",
"modified": "2023-09-28T20:54:31.790359Z"
}
},
{
"id": 2003,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3451,
"topic": "igwn.gwalert",
"uuid": "9702d1ed-47f0-4edf-9295-1ba684c7d050",
"title": "S230928ap - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230928ap/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230928ap/view/"
},
"event": {
"far": 6.756058526921909e-06,
"time": "2023-09-28T12:22:50.729Z",
"group": "CBC",
"search": "AllSky",
"area_50": 638.4926405943953,
"area_90": 2985.367496016121,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.28881383104040936,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "c6ecc32c90da29e504286a12bfbbc14c",
"classification": {
"BBH": 0.0,
"BNS": 0.00654884789732451,
"NSBH": 3.116012685650822e-05,
"Terrestrial": 0.993419991975819
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-28T12:23:26Z",
"superevent_id": "S230928ap",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:31.891638Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:31.891658Z",
"modified": "2023-09-28T20:54:31.897054Z"
}
},
{
"id": 2004,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3452,
"topic": "igwn.gwalert",
"uuid": "9c003374-fd31-404e-9519-c5d0017fcff9",
"title": "S230928as - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230928as/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230928as/view/"
},
"event": {
"far": 3.65936e-06,
"time": "2023-09-28T13:40:01.154Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1533.389489800802,
"area_90": 5490.659026971455,
"duration": 0.011239,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "f1c5da32ade7a9a557721452bd109dfe",
"classification": {},
"skymap_version": 0,
"central_frequency": 55.091793
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-28T13:41:43Z",
"superevent_id": "S230928as",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:31.931915Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:31.931935Z",
"modified": "2023-09-28T20:54:31.937305Z"
}
},
{
"id": 2006,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3454,
"topic": "igwn.gwalert",
"uuid": "7b8dc74c-d548-4a6b-8785-4a0374e15858",
"title": "S230928be - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230928be/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230928be/view/"
},
"event": {
"far": 1.39424e-05,
"time": "2023-09-28T15:11:07.055Z",
"group": "Burst",
"search": "AllSky",
"area_50": 826.7042405329995,
"area_90": 3294.2275574538307,
"duration": 0.007356,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "62a4d34d7229e944527265988f3988ec",
"classification": {},
"skymap_version": 0,
"central_frequency": 1329.769165
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-28T15:17:18Z",
"superevent_id": "S230928be",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:37.753909Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:37.753930Z",
"modified": "2023-09-28T20:54:37.759516Z"
}
},
{
"id": 9039,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 364208,
"topic": "igwn.gwalert",
"uuid": "64f67550-ecbf-4453-bd11-b5c841bf78c3",
"title": "S250705bk - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250705bk/view/"
},
"event": {
"far": 1.3211373990264506e-05,
"time": "2025-07-05T13:08:11.875Z",
"group": "Burst",
"search": "AllSky",
"area_50": 7278.3544912712405,
"area_90": 22744.857785222626,
"duration": 0.0625,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "5c8e83ab954d8463e061aef59c06620a",
"classification": {},
"skymap_version": 0,
"central_frequency": 312.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-07-05T13:13:26Z",
"superevent_id": "S250705bk",
"external_coinc": null
},
"message_text": "",
"published": "2025-07-05T13:13:27.706504Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-07-05T13:13:27.706524Z",
"modified": "2025-07-05T13:13:27.709656Z"
}
},
{
"id": 2009,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3457,
"topic": "igwn.gwalert",
"uuid": "2150708d-3f8d-4c37-b67b-61b72d391015",
"title": "S230928am - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230928am/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230928am/view/"
},
"event": {
"far": 7.909038686193526e-06,
"time": "2023-09-28T11:43:34.343Z",
"group": "CBC",
"search": "AllSky",
"area_50": 6589.294408552872,
"area_90": 21314.701413782794,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.6965941447024745,
"HasMassGap": 0.029978948254810324,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "f59fecac57e723fb7f3c6983a852801d",
"classification": {
"BBH": 0.05679943119655021,
"BNS": 0.0,
"NSBH": 0.2520529597962401,
"Terrestrial": 0.6911476090072097
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-28T11:48:33Z",
"superevent_id": "S230928am",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:42.387405Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:42.387428Z",
"modified": "2023-09-28T20:54:42.392895Z"
}
},
{
"id": 2011,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3459,
"topic": "igwn.gwalert",
"uuid": "a4e1019b-2aba-477e-98ac-ff60073282e2",
"title": "S230928bc - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230928bc/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230928bc/view/"
},
"event": {
"far": 4.00505e-06,
"time": "2023-09-28T15:09:31.522Z",
"group": "Burst",
"search": "AllSky",
"area_50": 641.84981517524,
"area_90": 2319.8076353636657,
"duration": 0.0723,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "0002ebb9023a4c1d09b2cd22524182d7",
"classification": {},
"skymap_version": 0,
"central_frequency": 22.691061
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-28T15:16:26Z",
"superevent_id": "S230928bc",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T20:54:53.764773Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T20:54:53.764796Z",
"modified": "2023-09-28T20:54:53.770023Z"
}
},
{
"id": 6789,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 155613,
"topic": "igwn.gwalert",
"uuid": "97428948-2d43-45e4-ab4c-bbcbfdf468d6",
"title": "S241214b - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241214b/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241214b/view/"
},
"event": {
"far": 1.164103e-05,
"time": "2024-12-14T08:26:33.964Z",
"group": "CBC",
"search": "AllSky",
"area_50": 5013.1009428463,
"area_90": 15526.932436406589,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.0,
"HasRemnant": 0.4079569672460905
},
"instruments": [
"H1",
"V1"
],
"significant": false,
"skymap_hash": "4f93789056a51fd631760169139289ce",
"classification": {
"BBH": 0.000379724,
"BNS": 0.0,
"NSBH": 0.000664518,
"Terrestrial": 0.998955758
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-14T08:31:40Z",
"superevent_id": "S241214b",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-14T08:31:40.764817Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-14T08:31:40.764836Z",
"modified": "2024-12-14T08:31:40.773939Z"
}
},
{
"id": 2013,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3461,
"topic": "igwn.gwalert",
"uuid": "94613c2e-0b99-4e56-ba5b-ea7c9e698c04",
"title": "S230928cb - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230928cb/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S230928cb/view/"
},
"event": {
"far": 9.502637526731553e-10,
"time": "2023-09-28T21:58:27.132Z",
"group": "CBC",
"search": "AllSky",
"area_50": 836.356117452928,
"area_90": 3092.79708260315,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": true,
"skymap_hash": "1280956064432936c5d115d374c623f8",
"classification": {
"BBH": 0.9999721212383053,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 2.7878761694744014e-05
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-28T22:03:32Z",
"superevent_id": "S230928cb",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T22:03:34.013352Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T22:03:34.013387Z",
"modified": "2023-09-28T22:03:34.020669Z"
}
},
{
"id": 9040,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 364215,
"topic": "igwn.gwalert",
"uuid": "06676ce1-b885-49e5-b000-9e310b705dc3",
"title": "S250705bl - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250705bl/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250705bl/view/"
},
"event": {
"far": 9.558450504316236e-06,
"time": "2025-07-05T13:09:46.253Z",
"group": "CBC",
"search": "AllSky",
"area_50": 622.3362379240804,
"area_90": 2992.0818451778105,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "46dd1b082935447b615c8fe55d892df7",
"classification": {
"BBH": 0.12107154619330004,
"BNS": 2.3291626454112575e-14,
"NSBH": 1.4949246832757552e-12,
"Terrestrial": 0.8789284538051817
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-07-05T13:14:48Z",
"superevent_id": "S250705bl",
"external_coinc": null
},
"message_text": "",
"published": "2025-07-05T13:14:48.951860Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-07-05T13:14:48.951881Z",
"modified": "2025-07-05T13:14:48.954867Z"
}
},
{
"id": 2015,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3463,
"topic": "igwn.gwalert",
"uuid": "6e935e9a-0c9f-43f3-ba07-ac54683c91e3",
"title": "S230928cc - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230928cc/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230928cc/view/"
},
"event": {
"far": 7.586574611195829e-06,
"time": "2023-09-28T22:04:26.662Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1160.1136410931356,
"area_90": 4751.241325540416,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.6463988744190612,
"HasMassGap": 0.09298409215603931,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "0c77156e910a91b0009f8c6ee69b4d94",
"classification": {
"BBH": 0.0303432906118678,
"BNS": 0.0,
"NSBH": 0.1308738658955652,
"Terrestrial": 0.838782843492567
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-28T22:09:36Z",
"superevent_id": "S230928cc",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-28T22:09:37.350614Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-28T22:09:37.350637Z",
"modified": "2023-09-28T22:09:37.356269Z"
}
},
{
"id": 6791,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 155640,
"topic": "igwn.gwalert",
"uuid": "ca090090-32f0-48ec-a449-3e3cda87c955",
"title": "S241214u - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241214u/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241214u/view/"
},
"event": {
"far": 7.18531e-06,
"time": "2024-12-14T10:08:56.801Z",
"group": "CBC",
"search": "BBH",
"area_50": 851.8830498893344,
"area_90": 3312.6920176484764,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "f7a53de7b522918bc6192856b7a2fd45",
"classification": {
"BBH": 0.004685925060790352,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9953140749392096
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-14T10:14:37Z",
"superevent_id": "S241214u",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-14T10:14:38.232819Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-14T10:14:38.232837Z",
"modified": "2024-12-14T10:14:38.240322Z"
}
},
{
"id": 2018,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3468,
"topic": "igwn.gwalert",
"uuid": "f0928c79-d520-49bb-ae12-03a8daab0485",
"title": "S230929g - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230929g/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230929g/view/"
},
"event": {
"far": 4.534125e-06,
"time": "2023-09-29T10:34:15.508Z",
"group": "CBC",
"search": "AllSky",
"area_50": 682.1359101453759,
"area_90": 2124.671862852069,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.022579365079365078,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "2a9544956e036c7cfed328547d327ff1",
"classification": {
"BBH": 0.0,
"BNS": 0.002521025,
"NSBH": 4.513e-06,
"Terrestrial": 0.997474462
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-29T10:39:22Z",
"superevent_id": "S230929g",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-29T10:39:22.949911Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-29T10:39:22.949934Z",
"modified": "2023-09-29T10:39:22.956973Z"
}
},
{
"id": 10151,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5774677,
"topic": "igwn.gwalert",
"uuid": "d6122ffb-2e65-47b4-ba0f-b882ad42ffc0",
"title": "S250902w - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250902w/view/"
},
"event": {
"far": 6.818414611320394e-06,
"time": "2025-09-02T04:04:37.296Z",
"group": "Burst",
"search": "AllSky",
"area_50": 7254.014975560116,
"area_90": 22725.554031382766,
"duration": 0.09375,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "885aa08afde406a393c7dd1289ceba9f",
"classification": {},
"skymap_version": 0,
"central_frequency": 88.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-09-02T04:10:08Z",
"superevent_id": "S250902w",
"external_coinc": null
},
"message_text": "",
"published": "2025-09-02T04:10:09.090462Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-09-02T04:10:09.090480Z",
"modified": "2025-09-02T04:10:09.099598Z"
}
},
{
"id": 2020,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3470,
"topic": "igwn.gwalert",
"uuid": "2aaa4f18-dd25-4ce0-b0a4-f4e47054eb17",
"title": "S230929m - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230929m/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230929m/view/"
},
"event": {
"far": 9.44726e-06,
"time": "2023-09-29T11:32:01.125Z",
"group": "Burst",
"search": "AllSky",
"area_50": 656.957100789041,
"area_90": 3806.826151266551,
"duration": 0.006225,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "12dccf9940b6889562c2a69ed9e3c3e5",
"classification": {},
"skymap_version": 0,
"central_frequency": 1307.598511
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-29T11:38:13Z",
"superevent_id": "S230929m",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-29T11:38:15.255989Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-29T11:38:15.256026Z",
"modified": "2023-09-29T11:38:15.264926Z"
}
},
{
"id": 6793,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 155697,
"topic": "igwn.gwalert",
"uuid": "f22ed187-0e3f-4dc1-963f-8a68f8e9b35a",
"title": "S241214bu - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241214bu/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241214bu/view/"
},
"event": {
"far": 1.60879e-05,
"time": "2024-12-14T14:33:29.295Z",
"group": "Burst",
"search": "AllSky",
"area_50": 236.68080794954906,
"area_90": 838.4543515659559,
"duration": 0.011407,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "5b944b3ed1c9497c93877bfe8b458f8f",
"classification": {},
"skymap_version": 0,
"central_frequency": 955.015137
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-14T14:39:48Z",
"superevent_id": "S241214bu",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-14T14:39:48.719296Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-14T14:39:48.719315Z",
"modified": "2024-12-14T14:39:48.727820Z"
}
},
{
"id": 2022,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3472,
"topic": "igwn.gwalert",
"uuid": "0ba0710b-38da-448a-8162-e5db8c5e84dd",
"title": "S230929o - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230929o/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230929o/view/"
},
"event": {
"far": 2.116047324452582e-05,
"time": "2023-09-29T12:35:39.561Z",
"group": "CBC",
"search": "AllSky",
"area_50": 654.6490432647103,
"area_90": 2883.8129649455695,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.14521424422804638,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "5e713300143be7eeea2216867d561f82",
"classification": {
"BBH": 0.0,
"BNS": 0.0011838030008304726,
"NSBH": 0.00041918798080768833,
"Terrestrial": 0.9983970090183618
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-29T12:40:54Z",
"superevent_id": "S230929o",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-29T12:40:55.536826Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-29T12:40:55.536852Z",
"modified": "2023-09-29T12:40:55.544231Z"
}
},
{
"id": 9042,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 364335,
"topic": "igwn.gwalert",
"uuid": "72ee14fb-79b5-4a2e-aa47-614ba41b9806",
"title": "S250705bq - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250705bq/view/"
},
"event": {
"far": 4.274310116198312e-06,
"time": "2025-07-05T13:35:58.774Z",
"group": "Burst",
"search": "AllSky",
"area_50": 7224.6396979777255,
"area_90": 22712.12533305939,
"duration": 0.09375,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "c3e245e82c2d240be524fa406416b5a9",
"classification": {},
"skymap_version": 0,
"central_frequency": 296.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-07-05T13:41:14Z",
"superevent_id": "S250705bq",
"external_coinc": null
},
"message_text": "",
"published": "2025-07-05T13:41:15.175250Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-07-05T13:41:15.175271Z",
"modified": "2025-07-05T13:41:15.182833Z"
}
},
{
"id": 2024,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3474,
"topic": "igwn.gwalert",
"uuid": "f6edd9c4-208c-4cf6-86ba-d9476c4dbb26",
"title": "S230929u - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230929u/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230929u/view/"
},
"event": {
"far": 1.70797e-05,
"time": "2023-09-29T14:37:44.785Z",
"group": "Burst",
"search": "BBH",
"area_50": 3388.2284457174806,
"area_90": 10639.725540341964,
"duration": 0.030397,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "2f4c79f7034a8e642a0cae9d9b74b0cb",
"classification": {},
"skymap_version": 0,
"central_frequency": 33.053394
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-29T14:43:29Z",
"superevent_id": "S230929u",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-29T14:43:29.826360Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-29T14:43:29.826384Z",
"modified": "2023-09-29T14:43:29.831562Z"
}
},
{
"id": 6795,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 155788,
"topic": "igwn.gwalert",
"uuid": "6bb33006-555e-4fba-a5c2-69a99ccee219",
"title": "S241214da - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241214da/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S241214da/view/"
},
"event": {
"far": 1.307341195469304e-05,
"time": "2024-12-14T22:54:02.521Z",
"group": "CBC",
"search": "AllSky",
"area_50": 517.4245322726845,
"area_90": 1771.5390616294706,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.8054378786206031,
"HasRemnant": 0.2990481022872883
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "4c2eae11e149660cda328eb94b75b182",
"classification": {
"BBH": 0.0,
"BNS": 0.0008224299952550658,
"NSBH": 0.0013287260663650195,
"Terrestrial": 0.9978488439383799
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-14T22:59:10Z",
"superevent_id": "S241214da",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-14T22:59:11.982351Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-14T22:59:11.982371Z",
"modified": "2024-12-14T22:59:11.988006Z"
}
},
{
"id": 2026,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3476,
"topic": "igwn.gwalert",
"uuid": "d0bb11a3-4626-4251-8064-1d226ddb191e",
"title": "S230929ac - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230929ac/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230929ac/view/"
},
"event": {
"far": 1.22242e-05,
"time": "2023-09-29T16:27:57.059Z",
"group": "Burst",
"search": "BBH",
"area_50": 862.7938672770798,
"area_90": 2832.6160525876885,
"duration": 0.00783,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "cd33c4a4ab0a4b5f20134549b32d4148",
"classification": {},
"skymap_version": 0,
"central_frequency": 73.918869
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-29T16:33:27Z",
"superevent_id": "S230929ac",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-29T16:33:28.630315Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-29T16:33:28.630350Z",
"modified": "2023-09-29T16:33:28.637898Z"
}
},
{
"id": 10674,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5783101,
"topic": "igwn.gwalert",
"uuid": "5edb5500-5eab-4f51-b18c-65c799795507",
"title": "S250929ch - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250929ch/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250929ch/view/"
},
"event": {
"far": 2.205663e-05,
"time": "2025-09-29T23:19:18.068Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1163.2609922626773,
"area_90": 11024.122029848679,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.922116310354633,
"HasRemnant": 0.3932570009852926
},
"instruments": [
"H1",
"V1"
],
"significant": false,
"skymap_hash": "20bff2362e39cb18091254e47b8a7116",
"classification": {
"BBH": 0.0,
"BNS": 0.0001796117162122794,
"NSBH": 0.0005209019975641613,
"Terrestrial": 0.9992994862862236
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-09-29T23:24:45Z",
"superevent_id": "S250929ch",
"external_coinc": null
},
"message_text": "",
"published": "2025-09-29T23:25:31.892780Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-09-29T23:25:31.892801Z",
"modified": "2025-09-29T23:25:31.902727Z"
}
},
{
"id": 2028,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3478,
"topic": "igwn.gwalert",
"uuid": "b71d43bf-0123-4286-837b-c1a08526fe39",
"title": "S230929aq - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230929aq/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230929aq/view/"
},
"event": {
"far": 7.570472007500939e-06,
"time": "2023-09-29T18:53:55.271Z",
"group": "CBC",
"search": "AllSky",
"area_50": 95.46965214277026,
"area_90": 561.4874486462708,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.6198164737721115,
"HasMassGap": 0.006,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "729903fed6a8eca7906cd3e507dbd96d",
"classification": {
"BBH": 0.02593410818269951,
"BNS": 0.0,
"NSBH": 0.08651085000054867,
"Terrestrial": 0.8875550418167518
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-29T18:58:54Z",
"superevent_id": "S230929aq",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-29T18:58:55.590521Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-29T18:58:55.590544Z",
"modified": "2023-09-29T18:58:55.603182Z"
}
},
{
"id": 6797,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 155848,
"topic": "igwn.gwalert",
"uuid": "ccd2bea7-3fc9-4336-9991-43eb0f271d59",
"title": "S241215v - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S241215v/view/"
},
"event": {
"far": 2.7055690323464596e-06,
"time": "2024-12-15T03:47:25.768Z",
"group": "Burst",
"search": "AllSky",
"area_50": 6467.596829997254,
"area_90": 22097.762384764817,
"duration": 0.28125,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "552af988af66eedd6d7781d7dbbe1883",
"classification": {},
"skymap_version": 0,
"central_frequency": 124.22109995458544
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-15T03:52:44Z",
"superevent_id": "S241215v",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-15T03:52:44.836078Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-15T03:52:44.836096Z",
"modified": "2024-12-15T03:52:44.843385Z"
}
},
{
"id": 2030,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3481,
"topic": "igwn.gwalert",
"uuid": "87cf5de0-8793-4611-adff-83fe948065e7",
"title": "S230929au - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230929au/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230929au/view/"
},
"event": {
"far": 1.70452e-05,
"time": "2023-09-29T23:06:21.072Z",
"group": "Burst",
"search": "AllSky",
"area_50": 298.36889087256986,
"area_90": 2349.812383179965,
"duration": 0.028546,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "f9362a292d9e1e5e289251eaf0b50ef0",
"classification": {},
"skymap_version": 0,
"central_frequency": 1106.201538
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-29T23:12:55Z",
"superevent_id": "S230929au",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-29T23:12:56.818680Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-29T23:12:56.818706Z",
"modified": "2023-09-29T23:12:56.824323Z"
}
},
{
"id": 9044,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 364977,
"topic": "igwn.gwalert",
"uuid": "bd69e366-b239-4571-8f85-6f3d21c142e5",
"title": "S250705ca - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250705ca/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250705ca/view/"
},
"event": {
"far": 1.689962482487317e-05,
"time": "2025-07-05T15:58:51.878Z",
"group": "CBC",
"search": "AllSky",
"area_50": 3231.280534062993,
"area_90": 20827.91109956032,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.913746722489347,
"HasMassGap": 0.05538644688644689,
"HasRemnant": 0.01667665788856659
},
"instruments": [
"L1",
"V1"
],
"significant": false,
"skymap_hash": "39d450733ca00518a251a047a2a9322d",
"classification": {
"BBH": 0.07369193604073893,
"BNS": 0.0,
"NSBH": 0.001784091173080408,
"Terrestrial": 0.9245239727861807
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-07-05T16:03:51Z",
"superevent_id": "S250705ca",
"external_coinc": null
},
"message_text": "",
"published": "2025-07-05T16:03:51.632863Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-07-05T16:03:51.632884Z",
"modified": "2025-07-05T16:03:51.635979Z"
}
},
{
"id": 2032,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3483,
"topic": "igwn.gwalert",
"uuid": "46186d23-f107-445e-999c-d42a7a74d93f",
"title": "S230929aw - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230929aw/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230929aw/view/"
},
"event": {
"far": 2.25689e-05,
"time": "2023-09-29T23:15:33.838Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1493.1033948306663,
"area_90": 5448.694344710897,
"duration": 0.007338,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "c4ce6d7251124f8c80215554dac2fefb",
"classification": {},
"skymap_version": 0,
"central_frequency": 691.707458
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-29T23:22:22Z",
"superevent_id": "S230929aw",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-29T23:22:22.837566Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-29T23:22:22.837590Z",
"modified": "2023-09-29T23:22:22.843304Z"
}
},
{
"id": 6799,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 155858,
"topic": "igwn.gwalert",
"uuid": "9e80fbf7-f916-42b3-8e75-74968437f6cd",
"title": "S241215ab - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241215ab/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241215ab/view/"
},
"event": {
"far": 7.126104e-06,
"time": "2024-12-15T04:19:04.027Z",
"group": "CBC",
"search": "AllSky",
"area_50": 274.5014778368773,
"area_90": 1162.421698617466,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.29016355253995935,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "76f57a00704a53f7eb5c6e8493d0da47",
"classification": {
"BBH": 0.0,
"BNS": 0.002023508,
"NSBH": 0.0,
"Terrestrial": 0.997976492
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-15T04:24:08Z",
"superevent_id": "S241215ab",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-15T04:24:09.266058Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-15T04:24:09.266078Z",
"modified": "2024-12-15T04:24:09.273873Z"
}
},
{
"id": 2034,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3485,
"topic": "igwn.gwalert",
"uuid": "6f7b8e8b-98ef-4486-a615-ca6f4387b6bd",
"title": "S230930b - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230930b/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230930b/view/"
},
"event": {
"far": 4.1525e-06,
"time": "2023-09-30T01:40:22.572Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1635.7833145165646,
"area_90": 6187.272752496723,
"duration": 0.009968,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "e37149dce50f7abb7e7edb9e0d0b192c",
"classification": {},
"skymap_version": 0,
"central_frequency": 470.88562
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-30T01:46:17Z",
"superevent_id": "S230930b",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-30T01:46:17.837920Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-30T01:46:17.837943Z",
"modified": "2023-09-30T01:46:17.843764Z"
}
},
{
"id": 10153,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5774686,
"topic": "igwn.gwalert",
"uuid": "7886c922-d61f-460c-97c0-2d056637d27d",
"title": "S250902ae - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250902ae/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250902ae/view/"
},
"event": {
"far": 6.004192950414722e-06,
"time": "2025-09-02T04:46:03.173Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1091.7112090084256,
"area_90": 4277.040415996106,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "6db77ae83d324d65c97b60fb857b301e",
"classification": {
"BBH": 0.2072161538026257,
"BNS": 1.7701845015549545e-19,
"NSBH": 1.476268470808465e-17,
"Terrestrial": 0.7927838461973743
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-09-02T04:51:04Z",
"superevent_id": "S250902ae",
"external_coinc": null
},
"message_text": "",
"published": "2025-09-02T04:51:05.500008Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-09-02T04:51:05.500029Z",
"modified": "2025-09-02T04:51:05.511664Z"
}
},
{
"id": 2036,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3487,
"topic": "igwn.gwalert",
"uuid": "b7ee4997-ff5c-4009-803d-71e55b736604",
"title": "S230930n - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230930n/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230930n/view/"
},
"event": {
"far": 2.017916267504916e-05,
"time": "2023-09-30T05:10:16.541Z",
"group": "CBC",
"search": "AllSky",
"area_50": 696.1940787026631,
"area_90": 2544.7383322802584,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.3778837661243339,
"HasRemnant": 0.0091340559816841
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "ccbd6771a4bb384a604de5683d548bed",
"classification": {
"BBH": 0.0,
"BNS": 0.016465632957837636,
"NSBH": 0.051453257338562625,
"Terrestrial": 0.9320811097035997
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-30T05:15:17Z",
"superevent_id": "S230930n",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-30T05:15:19.148072Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-30T05:15:19.148097Z",
"modified": "2023-09-30T05:15:19.153964Z"
}
},
{
"id": 6801,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 155888,
"topic": "igwn.gwalert",
"uuid": "b5a26790-57a2-4515-b668-b4d9c2275ced",
"title": "S241215aw - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241215aw/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241215aw/view/"
},
"event": {
"far": 1.22279e-05,
"time": "2024-12-15T07:01:37.891Z",
"group": "CBC",
"search": "BBH",
"area_50": 1664.319298453744,
"area_90": 5263.210449119228,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "84c69792967f0f626d3f03f2af00b3f3",
"classification": {
"BBH": 0.0016749695180930946,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9983250304819069
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-15T07:07:30Z",
"superevent_id": "S241215aw",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-15T07:07:31.165297Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-15T07:07:31.165314Z",
"modified": "2024-12-15T07:07:31.172658Z"
}
},
{
"id": 2038,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3489,
"topic": "igwn.gwalert",
"uuid": "ef1bd30e-5461-41db-9bfb-ab6bbcc5b87f",
"title": "S230930t - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230930t/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230930t/view/"
},
"event": {
"far": 5.944585487735097e-06,
"time": "2023-09-30T05:54:37.374Z",
"group": "CBC",
"search": "AllSky",
"area_50": 461.55904901331616,
"area_90": 1765.034535879084,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "a68746d804d6c3cde0dc17806d62d1d7",
"classification": {
"BBH": 0.2650476613068605,
"BNS": 2.5792793644898746e-16,
"NSBH": 1.7106090108035498e-14,
"Terrestrial": 0.734952338693122
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-30T05:59:33Z",
"superevent_id": "S230930t",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-30T05:59:34.799064Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-30T05:59:34.799086Z",
"modified": "2023-09-30T05:59:34.804586Z"
}
},
{
"id": 9046,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 365120,
"topic": "igwn.gwalert",
"uuid": "db250b75-17d9-4d73-b4a0-9d00a8df546d",
"title": "S250705cb - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250705cb/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250705cb/view/"
},
"event": {
"far": 9.502637526731553e-10,
"time": "2025-07-05T16:29:56.842Z",
"group": "CBC",
"search": "AllSky",
"area_50": 149.60409225889052,
"area_90": 509.6610660544812,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004253393665158371,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": true,
"skymap_hash": "7c081046b2ec95335351ba00d62b1bc8",
"classification": {
"BBH": 0.9945721728275656,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.005427827172434396
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-07-05T16:34:59Z",
"superevent_id": "S250705cb",
"external_coinc": null
},
"message_text": "",
"published": "2025-07-05T16:35:00.932220Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-07-05T16:35:00.932240Z",
"modified": "2025-07-05T16:35:00.937707Z"
}
},
{
"id": 2040,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3491,
"topic": "igwn.gwalert",
"uuid": "de450789-b0dd-44fb-94cf-eb731f43b3fd",
"title": "S230930al - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230930al/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S230930al/view/"
},
"event": {
"far": 7.380467672223296e-09,
"time": "2023-09-30T11:07:30.411Z",
"group": "CBC",
"search": "AllSky",
"area_50": 785.1592050950468,
"area_90": 2798.2050131340307,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": true,
"skymap_hash": "c928d4f0be877bdc5cbae500bfb20f31",
"classification": {
"BBH": 0.9939272388637214,
"BNS": 2.2241150892849075e-17,
"NSBH": 1.649609635543844e-15,
"Terrestrial": 0.006072761136276972
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-30T11:12:31Z",
"superevent_id": "S230930al",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-30T11:12:32.683892Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-30T11:12:32.683915Z",
"modified": "2023-09-30T11:12:32.689593Z"
}
},
{
"id": 6803,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 155933,
"topic": "igwn.gwalert",
"uuid": "68ac717d-ccb1-493d-b1fd-1a73dc018ae0",
"title": "S241215bf - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241215bf/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241215bf/view/"
},
"event": {
"far": 7.02646e-06,
"time": "2024-12-15T10:17:45.234Z",
"group": "CBC",
"search": "BBH",
"area_50": 990.3665013491769,
"area_90": 3434.389596204095,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "5bca9080b6cdd6d3e31e74355927e02b",
"classification": {
"BBH": 0.004200349046931784,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9957996509530682
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-15T10:24:51Z",
"superevent_id": "S241215bf",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-15T10:24:51.974033Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-15T10:24:51.974049Z",
"modified": "2024-12-15T10:24:51.978725Z"
}
},
{
"id": 2042,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3493,
"topic": "igwn.gwalert",
"uuid": "1e7cfa88-b39d-4cec-a54e-ca7301f70353",
"title": "S230930ao - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230930ao/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230930ao/view/"
},
"event": {
"far": 1.95107e-05,
"time": "2023-09-30T12:03:18.197Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1263.1369360428064,
"area_90": 4620.311516887474,
"duration": 0.075031,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "952283ab4cd2167cbfa4c38c25a637dd",
"classification": {},
"skymap_version": 0,
"central_frequency": 336.141205
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-30T12:09:48Z",
"superevent_id": "S230930ao",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-30T12:09:48.864952Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-30T12:09:48.864992Z",
"modified": "2023-09-30T12:09:48.870843Z"
}
},
{
"id": 2044,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3495,
"topic": "igwn.gwalert",
"uuid": "ad594078-fcfc-453c-96ca-c9d03e1fcd32",
"title": "S230930ba - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230930ba/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230930ba/view/"
},
"event": {
"far": 2.25159e-05,
"time": "2023-09-30T13:33:39.749Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1160.9529347383466,
"area_90": 6544.602021945377,
"duration": 0.014312,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "38db2028f3110382e2e4b43488e251c7",
"classification": {},
"skymap_version": 0,
"central_frequency": 753.396179
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-30T13:40:21Z",
"superevent_id": "S230930ba",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-30T13:40:22.745085Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-30T13:40:22.745108Z",
"modified": "2023-09-30T13:40:22.751417Z"
}
},
{
"id": 6805,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 155940,
"topic": "igwn.gwalert",
"uuid": "2cc48e30-b06a-4633-85b1-1bf199610030",
"title": "S241215bp - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241215bp/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241215bp/view/"
},
"event": {
"far": 1.89704e-05,
"time": "2024-12-15T10:58:47.901Z",
"group": "Burst",
"search": "AllSky",
"area_50": 81.4114835854832,
"area_90": 793.1324947245528,
"duration": 0.022973,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "ea072dc2af539c7b17d7411d23a44abd",
"classification": {},
"skymap_version": 0,
"central_frequency": 1244.64502
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-15T11:06:38Z",
"superevent_id": "S241215bp",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-15T11:06:39.140812Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-15T11:06:39.140829Z",
"modified": "2024-12-15T11:06:39.149352Z"
}
},
{
"id": 10923,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5786741,
"topic": "igwn.gwalert",
"uuid": "f6919561-a546-470e-aacb-39a660f3db2d",
"title": "S251011bw - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S251011bw/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S251011bw/view/"
},
"event": {
"far": 7.287598699759331e-06,
"time": "2025-10-11T12:51:40.937Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1098.425558170115,
"area_90": 4346.701788548634,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.015682288725766987,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "90af01ae594c06a935932c5cac368b50",
"classification": {
"BBH": 0.16653792409306598,
"BNS": 2.231061910693435e-15,
"NSBH": 1.5961940109379408e-13,
"Terrestrial": 0.8334620759067721
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-10-11T12:56:45Z",
"superevent_id": "S251011bw",
"external_coinc": null
},
"message_text": "",
"published": "2025-10-11T12:56:46.321213Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-10-11T12:56:46.321237Z",
"modified": "2025-10-11T12:56:46.330650Z"
}
},
{
"id": 2047,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3498,
"topic": "igwn.gwalert",
"uuid": "0bf67f92-450b-4965-9566-14e28a5a1f91",
"title": "S230930bc - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230930bc/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230930bc/view/"
},
"event": {
"far": 1.28214e-05,
"time": "2023-09-30T14:00:41.246Z",
"group": "Burst",
"search": "BBH",
"area_50": 503.57618712670006,
"area_90": 1971.5007726010313,
"duration": 0.018921,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "7cb5b38e4f3887b083920e38a354d55f",
"classification": {},
"skymap_version": 0,
"central_frequency": 85.312485
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-30T14:06:31Z",
"superevent_id": "S230930bc",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-30T14:06:32.024354Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-30T14:06:32.024387Z",
"modified": "2023-09-30T14:06:32.030394Z"
}
},
{
"id": 2048,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3499,
"topic": "igwn.gwalert",
"uuid": "26c34c87-519f-4f29-9295-d5b7ee620c27",
"title": "S230930bd - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230930bd/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230930bd/view/"
},
"event": {
"far": 9.500420244641981e-06,
"time": "2023-09-30T14:03:55.824Z",
"group": "CBC",
"search": "AllSky",
"area_50": 625.0639422710167,
"area_90": 2108.3056367704517,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.08337990943438149,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "21655ed4b4b3f8d6832f5f5001417634",
"classification": {
"BBH": 0.0,
"BNS": 0.0001464221970004229,
"NSBH": 0.002524307860531578,
"Terrestrial": 0.997329269942468
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-30T14:09:01Z",
"superevent_id": "S230930bd",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-30T14:09:02.605637Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-30T14:09:02.605674Z",
"modified": "2023-09-30T14:09:02.611455Z"
}
},
{
"id": 6807,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 155988,
"topic": "igwn.gwalert",
"uuid": "2f4cb6f4-7570-476c-9a3f-855999d13024",
"title": "S241215cn - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241215cn/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241215cn/view/"
},
"event": {
"far": 7.27393e-06,
"time": "2024-12-15T14:02:07.550Z",
"group": "Burst",
"search": "AllSky",
"area_50": 574.0768533244382,
"area_90": 2365.1294922050683,
"duration": 0.006485,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "48c3bcf9687e9df2e4dbbc68bdac5679",
"classification": {},
"skymap_version": 0,
"central_frequency": 689.211182
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-15T14:08:19Z",
"superevent_id": "S241215cn",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-15T14:08:19.902918Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-15T14:08:19.902936Z",
"modified": "2024-12-15T14:08:19.910822Z"
}
},
{
"id": 2051,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3504,
"topic": "igwn.gwalert",
"uuid": "596b3fe1-941b-44a9-a277-0516f35d5ae3",
"title": "S230930bp - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230930bp/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230930bp/view/"
},
"event": {
"far": 1.579023228259757e-05,
"time": "2023-09-30T16:18:24.744Z",
"group": "CBC",
"search": "AllSky",
"area_50": 70.51378016094444,
"area_90": 5202.781306664025,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.6097332945383659,
"HasMassGap": 0.3636248839022894,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "111d7b3bbfcb745f58d7eecf8303598c",
"classification": {
"BBH": 0.019233656398237507,
"BNS": 0.0,
"NSBH": 0.06146835722540324,
"Terrestrial": 0.9192979863763593
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-30T16:23:24Z",
"superevent_id": "S230930bp",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-30T16:23:25.886589Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-30T16:23:25.886616Z",
"modified": "2023-09-30T16:23:25.892622Z"
}
},
{
"id": 9049,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 365374,
"topic": "igwn.gwalert",
"uuid": "dde2a89a-5dfa-4005-8129-6b090db8d078",
"title": "S250705cj - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250705cj/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250705cj/view/"
},
"event": {
"far": 2.116833e-05,
"time": "2025-07-05T17:26:00.882Z",
"group": "CBC",
"search": "AllSky",
"area_50": 541.3444011612027,
"area_90": 2378.558190528447,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.2497094184893046,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "bd860bb97098aa6f4fb998f2d875cd54",
"classification": {
"BBH": 0.0,
"BNS": 0.000252619,
"NSBH": 0.000347351,
"Terrestrial": 0.99940003
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-07-05T17:31:14Z",
"superevent_id": "S250705cj",
"external_coinc": null
},
"message_text": "",
"published": "2025-07-05T17:31:15.051844Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-07-05T17:31:15.051874Z",
"modified": "2025-07-05T17:31:15.056284Z"
}
},
{
"id": 2053,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3506,
"topic": "igwn.gwalert",
"uuid": "ed85f36b-f014-4829-a4a9-e1809185ccbb",
"title": "S230930bt - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230930bt/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230930bt/view/"
},
"event": {
"far": 1.702712870610412e-05,
"time": "2023-09-30T17:05:08.110Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1155.4975260444742,
"area_90": 3923.697791362206,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.3311659451659451,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "d39d5c524efeab666194da0a69320f03",
"classification": {
"BBH": 0.0,
"BNS": 0.10095872778747528,
"NSBH": 0.0,
"Terrestrial": 0.8990412722125247
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-30T17:10:10Z",
"superevent_id": "S230930bt",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-30T17:10:11.904600Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-30T17:10:11.904625Z",
"modified": "2023-09-30T17:10:11.910461Z"
}
},
{
"id": 6809,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 156008,
"topic": "igwn.gwalert",
"uuid": "6e4171c4-a2df-498d-ad0e-9758b2544b42",
"title": "S241215cz - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241215cz/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S241215cz/view/"
},
"event": {
"far": 8.812919785483732e-06,
"time": "2024-12-15T15:20:17.258Z",
"group": "CBC",
"search": "AllSky",
"area_50": 736.4801736727991,
"area_90": 2993.7604324682325,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "a23b9bdab1f202819632e680e950087f",
"classification": {
"BBH": 0.1442799559202149,
"BNS": 9.718124633151468e-17,
"NSBH": 7.0902863286113975e-15,
"Terrestrial": 0.8557200440797779
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-15T15:25:24Z",
"superevent_id": "S241215cz",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-15T15:25:24.796391Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-15T15:25:24.796409Z",
"modified": "2024-12-15T15:25:24.804458Z"
}
},
{
"id": 2055,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 3508,
"topic": "igwn.gwalert",
"uuid": "d01b9fa4-f1a0-42f3-acc1-07c2d5ab37df",
"title": "S230930bz - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230930bz/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230930bz/view/"
},
"event": {
"far": 1.734167997711663e-05,
"time": "2023-09-30T18:19:05.711Z",
"group": "CBC",
"search": "AllSky",
"area_50": 437.5342684191465,
"area_90": 1638.930665686106,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.6210313367919233,
"HasMassGap": 0.22698131896736015,
"HasRemnant": 0.0862741455549606
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "1166c20ce96c5a7e71d2dfc70a228766",
"classification": {
"BBH": 0.0006415690991012615,
"BNS": 0.0,
"NSBH": 0.0023877488714373805,
"Terrestrial": 0.9969706820294614
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-09-30T18:24:04Z",
"superevent_id": "S230930bz",
"external_coinc": null
},
"message_text": "",
"published": "2023-09-30T18:24:05.655462Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-09-30T18:24:05.655487Z",
"modified": "2023-09-30T18:24:05.661141Z"
}
},
{
"id": 10155,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5774688,
"topic": "igwn.gwalert",
"uuid": "56e7ef2c-d278-47b5-a69c-e5f9cf8d5c01",
"title": "S250902af - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250902af/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250902af/view/"
},
"event": {
"far": 1.48053e-06,
"time": "2025-09-02T04:59:26.169Z",
"group": "Burst",
"search": "AllSky",
"area_50": 266.8953791771511,
"area_90": 1207.7435554588694,
"duration": 0.022876,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "b44ee05fa21e3da3075345a26d84512b",
"classification": {},
"skymap_version": 0,
"central_frequency": 139.475693
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-09-02T05:06:58Z",
"superevent_id": "S250902af",
"external_coinc": null
},
"message_text": "",
"published": "2025-09-02T05:06:59.407884Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-09-02T05:06:59.407903Z",
"modified": "2025-09-02T05:06:59.417701Z"
}
}
]
}