HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept
{
"count": 11122,
"next": "https://hermes.lco.global/api/v0/nonlocalizedeventsequence/?format=api&limit=100&offset=1200&ordering=-id",
"previous": "https://hermes.lco.global/api/v0/nonlocalizedeventsequence/?format=api&limit=100&offset=1000&ordering=-id",
"results": [
{
"id": 10055,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773659,
"topic": "igwn.gwalert",
"uuid": "dbb9e036-33fb-4011-9f1a-50c85673118b",
"title": "S250829eg - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829eg/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829eg/view/"
},
"event": {
"far": 1.02040291949379e-06,
"time": "2025-08-29T12:57:40.584Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1292.0925668025916,
"area_90": 5418.479773483294,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.2823841443679127,
"HasMassGap": 0.3984125585656155,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "b0f2c71ae79061bef4acd38ffe098191",
"classification": {
"BBH": 0.5574472793722496,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.4425527206277504
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-29T12:58:06Z",
"superevent_id": "S250829eg",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T12:58:07.091883Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T12:58:07.091898Z",
"modified": "2025-08-29T12:58:07.096475Z"
}
},
{
"id": 10054,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773652,
"topic": "igwn.gwalert",
"uuid": "fbe1b125-c7d2-4ae5-a51a-00dc3cb64d1a",
"title": "S250829dy - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829dy/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829dy/view/"
},
"event": {
"far": 1.70461e-05,
"time": "2025-08-29T12:13:53.356Z",
"group": "Burst",
"search": "AllSky",
"area_50": 361.73556108601304,
"area_90": 1364.6914671133577,
"duration": 0.019478,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "3ce870c0f80be822033df1f75fa80359",
"classification": {},
"skymap_version": 0,
"central_frequency": 724.701111
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-29T12:20:10Z",
"superevent_id": "S250829dy",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T12:20:11.005054Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T12:20:11.005073Z",
"modified": "2025-08-29T12:20:11.012222Z"
}
},
{
"id": 10053,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773651,
"topic": "igwn.gwalert",
"uuid": "cddf9f4d-0cb4-40e9-a3d8-827f28358ff9",
"title": "S250829dy - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829dy/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829dy/view/"
},
"event": {
"far": 1.70461e-05,
"time": "2025-08-29T12:13:53.356Z",
"group": "Burst",
"search": "AllSky",
"area_50": 361.73556108601304,
"area_90": 1364.6914671133577,
"duration": 0.019478,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "3ce870c0f80be822033df1f75fa80359",
"classification": {},
"skymap_version": 0,
"central_frequency": 724.701111
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-29T12:15:36Z",
"superevent_id": "S250829dy",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T12:15:37.154494Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T12:15:37.154511Z",
"modified": "2025-08-29T12:15:37.160810Z"
}
},
{
"id": 10052,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773638,
"topic": "igwn.gwalert",
"uuid": "4c95815d-13f1-4481-888a-65359bb371e4",
"title": "S250829dm - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829dm/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829dm/view/"
},
"event": {
"far": 2.917626475290811e-06,
"time": "2025-08-29T11:04:25.684Z",
"group": "CBC",
"search": "AllSky",
"area_50": 298.10661160844137,
"area_90": 1180.886158812112,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.4033506493506492,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "b022eccf36702553eb297a430e60d788",
"classification": {
"BBH": 0.0,
"BNS": 0.012587689545887598,
"NSBH": 0.0,
"Terrestrial": 0.9874123104541124
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-29T11:09:26Z",
"superevent_id": "S250829dm",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T11:09:28.077234Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T11:09:28.077253Z",
"modified": "2025-08-29T11:09:28.081081Z"
}
},
{
"id": 10051,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773637,
"topic": "igwn.gwalert",
"uuid": "0b7c5c77-3c1b-4cd7-aaf3-3023fa67990f",
"title": "S250829dm - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829dm/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829dm/view/"
},
"event": {
"far": 2.917626475290811e-06,
"time": "2025-08-29T11:04:25.684Z",
"group": "CBC",
"search": "AllSky",
"area_50": 298.10661160844137,
"area_90": 1180.886158812112,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.4033506493506492,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "b022eccf36702553eb297a430e60d788",
"classification": {
"BBH": 0.0,
"BNS": 0.012587689545887598,
"NSBH": 0.0,
"Terrestrial": 0.9874123104541124
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-29T11:05:21Z",
"superevent_id": "S250829dm",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T11:05:22.535023Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T11:05:22.535041Z",
"modified": "2025-08-29T11:05:22.545992Z"
}
},
{
"id": 10050,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773635,
"topic": "igwn.gwalert",
"uuid": "6b490679-7b82-44be-8594-903fcae57572",
"title": "S250829dl - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829dl/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829dl/view/"
},
"event": {
"far": 1.01069e-05,
"time": "2025-08-29T10:52:01.805Z",
"group": "CBC",
"search": "BBH",
"area_50": 1958.0720742776523,
"area_90": 7061.81673080676,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "eec28b9189a4651195a618f604b4ba58",
"classification": {
"BBH": 0.00313948876303094,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9968605112369691
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-29T11:00:21Z",
"superevent_id": "S250829dl",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T11:00:22.707766Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T11:00:22.707785Z",
"modified": "2025-08-29T11:00:22.714272Z"
}
},
{
"id": 10049,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773634,
"topic": "igwn.gwalert",
"uuid": "5bb92422-c181-469a-9e91-0d901947e982",
"title": "S250829dl - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829dl/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829dl/view/"
},
"event": {
"far": 1.01069e-05,
"time": "2025-08-29T10:52:01.805Z",
"group": "CBC",
"search": "BBH",
"area_50": 1958.0720742776523,
"area_90": 7061.81673080676,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "eec28b9189a4651195a618f604b4ba58",
"classification": {
"BBH": 0.00313948876303094,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9968605112369691
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-29T10:55:47Z",
"superevent_id": "S250829dl",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T10:55:47.848629Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T10:55:47.848648Z",
"modified": "2025-08-29T10:55:47.855746Z"
}
},
{
"id": 10048,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773631,
"topic": "igwn.gwalert",
"uuid": "037a2397-bcb3-4cec-be8b-e2e38d301f9a",
"title": "S250829dh - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250829dh/view/"
},
"event": {
"far": 8.011547202736922e-06,
"time": "2025-08-29T10:21:26.250Z",
"group": "Burst",
"search": "AllSky",
"area_50": 7107.977881293374,
"area_90": 22529.15931840335,
"duration": 0.0625,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "6d69c3e92c1f0b08f385d5ce38062a21",
"classification": {},
"skymap_version": 0,
"central_frequency": 64.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-29T10:26:52Z",
"superevent_id": "S250829dh",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T10:26:52.987223Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T10:26:52.987241Z",
"modified": "2025-08-29T10:26:52.993470Z"
}
},
{
"id": 10047,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773629,
"topic": "igwn.gwalert",
"uuid": "d1c688f9-9609-4aec-a992-8379ccbe6449",
"title": "S250829dh - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250829dh/view/"
},
"event": {
"far": 8.011547202736922e-06,
"time": "2025-08-29T10:21:26.250Z",
"group": "Burst",
"search": "AllSky",
"area_50": 7107.977881293374,
"area_90": 22529.15931840335,
"duration": 0.0625,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "6d69c3e92c1f0b08f385d5ce38062a21",
"classification": {},
"skymap_version": 0,
"central_frequency": 64.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-29T10:22:17Z",
"superevent_id": "S250829dh",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T10:22:18.188984Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T10:22:18.189003Z",
"modified": "2025-08-29T10:22:18.191824Z"
}
},
{
"id": 10046,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773622,
"topic": "igwn.gwalert",
"uuid": "62f62441-f409-41e3-8962-28cb9caedf84",
"title": "S250829db - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829db/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829db/view/"
},
"event": {
"far": 9.354603953144371e-06,
"time": "2025-08-29T09:47:53.069Z",
"group": "CBC",
"search": "AllSky",
"area_50": 711.0915409051613,
"area_90": 2682.382490094889,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "fcc5ac47a2a4ce0b0b1d78b0fbab61e8",
"classification": {
"BBH": 0.12478858786017198,
"BNS": 1.5603621595206423e-15,
"NSBH": 1.0528555074730023e-13,
"Terrestrial": 0.8752114121397212
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-29T09:52:51Z",
"superevent_id": "S250829db",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T09:52:52.470481Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T09:52:52.470499Z",
"modified": "2025-08-29T09:52:52.473186Z"
}
},
{
"id": 10045,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773619,
"topic": "igwn.gwalert",
"uuid": "05aad1d6-bb26-4c1b-8111-985c40f6eca8",
"title": "S250829db - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829db/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829db/view/"
},
"event": {
"far": 9.354603953144371e-06,
"time": "2025-08-29T09:47:53.069Z",
"group": "CBC",
"search": "AllSky",
"area_50": 711.0915409051613,
"area_90": 2682.382490094889,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "fcc5ac47a2a4ce0b0b1d78b0fbab61e8",
"classification": {
"BBH": 0.12478858786017198,
"BNS": 1.5603621595206423e-15,
"NSBH": 1.0528555074730023e-13,
"Terrestrial": 0.8752114121397212
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-29T09:48:16Z",
"superevent_id": "S250829db",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T09:48:17.669714Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T09:48:17.669732Z",
"modified": "2025-08-29T09:48:17.678796Z"
}
},
{
"id": 10044,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773618,
"topic": "igwn.gwalert",
"uuid": "39fb47a9-5e5f-44ca-8156-3b3ff346ea1a",
"title": "S250829da - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829da/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829da/view/"
},
"event": {
"far": 4.659672298974652e-06,
"time": "2025-08-29T09:26:47.642Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1182.98439292514,
"area_90": 5579.624153363838,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.015682288725766987,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "b5e2a8bc5c8380cfc6b2a87d3b4ed4a6",
"classification": {
"BBH": 0.3149149697098072,
"BNS": 3.7991128216537954e-15,
"NSBH": 2.8935917431502036e-13,
"Terrestrial": 0.6850850302898996
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-29T09:31:48Z",
"superevent_id": "S250829da",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T09:31:50.080091Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T09:31:50.080120Z",
"modified": "2025-08-29T09:31:50.088413Z"
}
},
{
"id": 10043,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773616,
"topic": "igwn.gwalert",
"uuid": "878dd0d2-619d-4e78-ba3e-d3393ecc53c9",
"title": "S250829da - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829da/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829da/view/"
},
"event": {
"far": 4.659672298974652e-06,
"time": "2025-08-29T09:26:47.642Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1182.98439292514,
"area_90": 5579.624153363838,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.015682288725766987,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "b5e2a8bc5c8380cfc6b2a87d3b4ed4a6",
"classification": {
"BBH": 0.3149149697098072,
"BNS": 3.7991128216537954e-15,
"NSBH": 2.8935917431502036e-13,
"Terrestrial": 0.6850850302898996
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-29T09:27:12Z",
"superevent_id": "S250829da",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T09:27:13.362183Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T09:27:13.362200Z",
"modified": "2025-08-29T09:27:13.366184Z"
}
},
{
"id": 10042,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773607,
"topic": "igwn.gwalert",
"uuid": "bda75374-24f7-47d0-96ef-3f44169c7b1b",
"title": "S250829cq - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829cq/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829cq/view/"
},
"event": {
"far": 1.97402e-05,
"time": "2025-08-29T08:28:38.961Z",
"group": "CBC",
"search": "BBH",
"area_50": 782.2216773368077,
"area_90": 2758.7582118091063,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "6efb4acda08b67a29539a497dc251dbd",
"classification": {
"BBH": 0.001692916035086034,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.998307083964914
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-29T08:35:39Z",
"superevent_id": "S250829cq",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T08:35:40.154792Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T08:35:40.154811Z",
"modified": "2025-08-29T08:35:40.160559Z"
}
},
{
"id": 10041,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773606,
"topic": "igwn.gwalert",
"uuid": "12a9efe4-5096-48e6-93e7-db074bba8949",
"title": "S250829cq - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829cq/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829cq/view/"
},
"event": {
"far": 1.97402e-05,
"time": "2025-08-29T08:28:38.961Z",
"group": "CBC",
"search": "BBH",
"area_50": 782.2216773368077,
"area_90": 2758.7582118091063,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "6efb4acda08b67a29539a497dc251dbd",
"classification": {
"BBH": 0.001692916035086034,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.998307083964914
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-29T08:31:04Z",
"superevent_id": "S250829cq",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T08:31:05.390140Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T08:31:05.390159Z",
"modified": "2025-08-29T08:31:05.396716Z"
}
},
{
"id": 10040,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773603,
"topic": "igwn.gwalert",
"uuid": "3ab62ce7-fa3e-4ac9-a371-093fce42fbb8",
"title": "S250829cl - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829cl/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829cl/view/"
},
"event": {
"far": 7.99803e-06,
"time": "2025-08-29T07:59:07.606Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1180.0468651669007,
"area_90": 5244.745988924582,
"duration": 0.011221,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "aa8c96cfce8d68108b70c77f90ddcf44",
"classification": {},
"skymap_version": 0,
"central_frequency": 135.852081
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-29T08:05:00Z",
"superevent_id": "S250829cl",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T08:05:01.270593Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T08:05:01.270609Z",
"modified": "2025-08-29T08:05:01.274584Z"
}
},
{
"id": 10039,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773600,
"topic": "igwn.gwalert",
"uuid": "51d2501a-dc1e-4f36-83ba-5641d485dccb",
"title": "S250829cl - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829cl/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829cl/view/"
},
"event": {
"far": 7.99803e-06,
"time": "2025-08-29T07:59:07.606Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1180.0468651669007,
"area_90": 5244.745988924582,
"duration": 0.011221,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "aa8c96cfce8d68108b70c77f90ddcf44",
"classification": {},
"skymap_version": 0,
"central_frequency": 135.852081
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-29T08:00:23Z",
"superevent_id": "S250829cl",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T08:00:24.478178Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T08:00:24.478193Z",
"modified": "2025-08-29T08:00:24.487389Z"
}
},
{
"id": 10038,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773598,
"topic": "igwn.gwalert",
"uuid": "8b758ebb-54b1-454a-a1a9-336c681f6ea1",
"title": "S250829cj - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829cj/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829cj/view/"
},
"event": {
"far": 1.07049e-05,
"time": "2025-08-29T07:46:48.387Z",
"group": "CBC",
"search": "BBH",
"area_50": 536.3086392899357,
"area_90": 1809.5170990752756,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "da0d03954030c206fc1565072716d419",
"classification": {
"BBH": 0.001712377369974094,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9982876226300259
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-29T07:55:18Z",
"superevent_id": "S250829cj",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T07:55:19.668137Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T07:55:19.668153Z",
"modified": "2025-08-29T07:55:19.671242Z"
}
},
{
"id": 10037,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773597,
"topic": "igwn.gwalert",
"uuid": "fb3eb8af-fa3f-45e9-a1b6-c7888fe7bb12",
"title": "S250829ci - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250829ci/view/"
},
"event": {
"far": 1.0536808886605243e-05,
"time": "2025-08-29T07:47:35.212Z",
"group": "Burst",
"search": "AllSky",
"area_50": 7200.300182266602,
"area_90": 22601.338571891516,
"duration": 0.09375,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "f803905c177b02e60c412115051292f4",
"classification": {},
"skymap_version": 0,
"central_frequency": 48.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-29T07:52:59Z",
"superevent_id": "S250829ci",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T07:53:01.117551Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T07:53:01.117570Z",
"modified": "2025-08-29T07:53:01.120593Z"
}
},
{
"id": 10036,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773595,
"topic": "igwn.gwalert",
"uuid": "3e5ebf24-bb3a-4e04-ae40-c67b96c73adc",
"title": "S250829cj - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829cj/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829cj/view/"
},
"event": {
"far": 1.07049e-05,
"time": "2025-08-29T07:46:48.387Z",
"group": "CBC",
"search": "BBH",
"area_50": 536.3086392899357,
"area_90": 1809.5170990752756,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "da0d03954030c206fc1565072716d419",
"classification": {
"BBH": 0.001712377369974094,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9982876226300259
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-29T07:50:44Z",
"superevent_id": "S250829cj",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T07:50:45.788631Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T07:50:45.788648Z",
"modified": "2025-08-29T07:50:45.791253Z"
}
},
{
"id": 10035,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773593,
"topic": "igwn.gwalert",
"uuid": "6c6244ba-8c6c-46b7-a29e-a5ba27d796a2",
"title": "S250829ci - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250829ci/view/"
},
"event": {
"far": 1.0536808886605243e-05,
"time": "2025-08-29T07:47:35.212Z",
"group": "Burst",
"search": "AllSky",
"area_50": 7200.300182266602,
"area_90": 22601.338571891516,
"duration": 0.09375,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "f803905c177b02e60c412115051292f4",
"classification": {},
"skymap_version": 0,
"central_frequency": 48.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-29T07:48:26Z",
"superevent_id": "S250829ci",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T07:48:27.200139Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T07:48:27.200157Z",
"modified": "2025-08-29T07:48:27.205562Z"
}
},
{
"id": 10034,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773590,
"topic": "igwn.gwalert",
"uuid": "8560c40e-687e-4814-a531-f095a4659b7e",
"title": "S250829cc - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829cc/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829cc/view/"
},
"event": {
"far": 1.45035e-05,
"time": "2025-08-29T07:21:03.523Z",
"group": "CBC",
"search": "BBH",
"area_50": 1202.7077935876023,
"area_90": 4058.824068241203,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.008928487776313863,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "3206a4a99ab08e121a92ff7e69d6cedc",
"classification": {
"BBH": 0.0015109306137832679,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9984890693862167
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-29T07:26:50Z",
"superevent_id": "S250829cc",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T07:26:51.513404Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T07:26:51.513420Z",
"modified": "2025-08-29T07:26:51.517567Z"
}
},
{
"id": 10033,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773587,
"topic": "igwn.gwalert",
"uuid": "c3cddec1-45f1-4915-b7b6-c649efd80603",
"title": "S250829cc - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829cc/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829cc/view/"
},
"event": {
"far": 1.45035e-05,
"time": "2025-08-29T07:21:03.523Z",
"group": "CBC",
"search": "BBH",
"area_50": 1202.7077935876023,
"area_90": 4058.824068241203,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.008928487776313863,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "3206a4a99ab08e121a92ff7e69d6cedc",
"classification": {
"BBH": 0.0015109306137832679,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9984890693862167
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-29T07:22:15Z",
"superevent_id": "S250829cc",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T07:22:15.756422Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T07:22:15.756439Z",
"modified": "2025-08-29T07:22:15.760256Z"
}
},
{
"id": 10032,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773581,
"topic": "igwn.gwalert",
"uuid": "a2713a3c-6dfe-4859-b6f6-0c6801da96f7",
"title": "S250829bo - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829bo/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250829bo/view/"
},
"event": {
"far": 1.963183741581139e-05,
"time": "2025-08-29T06:47:06.321Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1052.893877917409,
"area_90": 3108.7436618621628,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "dc14dc7ff7ab57f27d049d5cafbab105",
"classification": {
"BBH": 0.06257352129135718,
"BNS": 4.643001746181319e-14,
"NSBH": 3.228930373411224e-12,
"Terrestrial": 0.9374264787053674
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-29T06:52:05Z",
"superevent_id": "S250829bo",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T06:52:05.825301Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T06:52:05.825319Z",
"modified": "2025-08-29T06:52:05.832183Z"
}
},
{
"id": 10031,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773580,
"topic": "igwn.gwalert",
"uuid": "f123c681-1cbf-46ca-aabf-7e087a28fc21",
"title": "S250829bo - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829bo/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829bo/view/"
},
"event": {
"far": 1.963183741581139e-05,
"time": "2025-08-29T06:47:06.325Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1169.7655180130641,
"area_90": 3660.99888041111,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "2a659c41ea0fc9d42d5063ab4dd630a3",
"classification": {
"BBH": 0.06257352129135718,
"BNS": 4.643001746181319e-14,
"NSBH": 3.228930373411224e-12,
"Terrestrial": 0.9374264787053674
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-29T06:47:28Z",
"superevent_id": "S250829bo",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T06:47:30.067136Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T06:47:30.067153Z",
"modified": "2025-08-29T06:47:30.073055Z"
}
},
{
"id": 10030,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773578,
"topic": "igwn.gwalert",
"uuid": "e8b17158-b2ec-440c-a0d5-1caeec05aa75",
"title": "S250829bj - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829bj/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250829bj/view/"
},
"event": {
"far": 1.655494922011637e-05,
"time": "2025-08-29T06:27:53.251Z",
"group": "CBC",
"search": "AllSky",
"area_50": 548.058750322892,
"area_90": 1935.4111458569512,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "d0e0fb743b8acdb2b485fd48b0c6ce71",
"classification": {
"BBH": 0.06631317166104309,
"BNS": 2.647770199600753e-15,
"NSBH": 1.7399980836777513e-13,
"Terrestrial": 0.9336868283387803
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-29T06:33:00Z",
"superevent_id": "S250829bj",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T06:33:02.451554Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T06:33:02.451572Z",
"modified": "2025-08-29T06:33:02.458648Z"
}
},
{
"id": 10029,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773576,
"topic": "igwn.gwalert",
"uuid": "54e2eb1e-cc4e-4fa1-8eef-fa700018d120",
"title": "S250829bj - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829bj/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829bj/view/"
},
"event": {
"far": 1.655494922011637e-05,
"time": "2025-08-29T06:27:53.252Z",
"group": "CBC",
"search": "AllSky",
"area_50": 569.4607382757767,
"area_90": 2076.412478252427,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "5ccb5c1b6fd83c6d4c3c205487363ccb",
"classification": {
"BBH": 0.06631317166104309,
"BNS": 2.647770199600753e-15,
"NSBH": 1.7399980836777513e-13,
"Terrestrial": 0.9336868283387803
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-29T06:28:26Z",
"superevent_id": "S250829bj",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T06:28:26.615408Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T06:28:26.615424Z",
"modified": "2025-08-29T06:28:26.624627Z"
}
},
{
"id": 10028,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773552,
"topic": "igwn.gwalert",
"uuid": "c81eee2a-b4f6-43a6-95f0-c0515be870c1",
"title": "S250829az - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250829az/view/"
},
"event": {
"far": 1.8848059361911664e-05,
"time": "2025-08-29T04:53:46.944Z",
"group": "Burst",
"search": "AllSky",
"area_50": 7280.0330785616625,
"area_90": 22749.05425344868,
"duration": 0.09375,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "29c569eb9ed6bf8b06d2419f50f25c40",
"classification": {},
"skymap_version": 0,
"central_frequency": 312.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-29T04:59:31Z",
"superevent_id": "S250829az",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T04:59:31.933718Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T04:59:31.933735Z",
"modified": "2025-08-29T04:59:31.937239Z"
}
},
{
"id": 10027,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773550,
"topic": "igwn.gwalert",
"uuid": "2934d55c-9c0d-406d-a356-ca103a01815d",
"title": "S250829az - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250829az/view/"
},
"event": {
"far": 1.8848059361911664e-05,
"time": "2025-08-29T04:53:46.944Z",
"group": "Burst",
"search": "AllSky",
"area_50": 7280.0330785616625,
"area_90": 22749.05425344868,
"duration": 0.09375,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "29c569eb9ed6bf8b06d2419f50f25c40",
"classification": {},
"skymap_version": 0,
"central_frequency": 312.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-29T04:54:36Z",
"superevent_id": "S250829az",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T04:54:37.007940Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T04:54:37.007958Z",
"modified": "2025-08-29T04:54:37.046238Z"
}
},
{
"id": 10026,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773549,
"topic": "igwn.gwalert",
"uuid": "2061ec22-b05e-4aef-9261-8908a3143842",
"title": "S250829ax - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829ax/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829ax/view/"
},
"event": {
"far": 1.55673e-05,
"time": "2025-08-29T04:40:41.430Z",
"group": "CBC",
"search": "BBH",
"area_50": 1604.7294496437514,
"area_90": 5692.9287954673455,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "9b4e457be2b245908801bf8300b7de3d",
"classification": {
"BBH": 0.002280135218653001,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.997719864781347
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-29T04:46:48Z",
"superevent_id": "S250829ax",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T04:46:48.688691Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T04:46:48.688709Z",
"modified": "2025-08-29T04:46:48.698160Z"
}
},
{
"id": 10025,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773548,
"topic": "igwn.gwalert",
"uuid": "a6cb6c31-b94a-4e3f-a751-4570df9784a6",
"title": "S250829aw - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250829aw/view/"
},
"event": {
"far": 1.9651300881542607e-05,
"time": "2025-08-29T04:37:35.811Z",
"group": "Burst",
"search": "AllSky",
"area_50": 7264.925792947861,
"area_90": 22682.750055476998,
"duration": 0.15625,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "9298c2813ccd05d89a40cf90bd58f4b7",
"classification": {},
"skymap_version": 0,
"central_frequency": 264.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-29T04:42:59Z",
"superevent_id": "S250829aw",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T04:43:01.021631Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T04:43:01.021649Z",
"modified": "2025-08-29T04:43:01.026558Z"
}
},
{
"id": 10024,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773546,
"topic": "igwn.gwalert",
"uuid": "9717c90d-752e-49ea-a3fc-0104bacacdc0",
"title": "S250829ax - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829ax/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829ax/view/"
},
"event": {
"far": 1.55673e-05,
"time": "2025-08-29T04:40:41.430Z",
"group": "CBC",
"search": "BBH",
"area_50": 1604.7294496437514,
"area_90": 5692.9287954673455,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "9b4e457be2b245908801bf8300b7de3d",
"classification": {
"BBH": 0.002280135218653001,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.997719864781347
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-29T04:42:14Z",
"superevent_id": "S250829ax",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T04:42:14.869012Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T04:42:14.869028Z",
"modified": "2025-08-29T04:42:14.878128Z"
}
},
{
"id": 10023,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773544,
"topic": "igwn.gwalert",
"uuid": "186ebf51-3db1-4775-a278-88c47bfb37c4",
"title": "S250829aw - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250829aw/view/"
},
"event": {
"far": 1.9651300881542607e-05,
"time": "2025-08-29T04:37:35.811Z",
"group": "Burst",
"search": "AllSky",
"area_50": 7264.925792947861,
"area_90": 22682.750055476998,
"duration": 0.15625,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "9298c2813ccd05d89a40cf90bd58f4b7",
"classification": {},
"skymap_version": 0,
"central_frequency": 264.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-29T04:38:25Z",
"superevent_id": "S250829aw",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T04:38:26.234064Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T04:38:26.234082Z",
"modified": "2025-08-29T04:38:26.245467Z"
}
},
{
"id": 10022,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773521,
"topic": "igwn.gwalert",
"uuid": "1657a107-b261-4e01-b43a-9864be01ac59",
"title": "S250829z - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829z/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829z/view/"
},
"event": {
"far": 2.140930711156989e-05,
"time": "2025-08-29T02:16:14.547Z",
"group": "CBC",
"search": "AllSky",
"area_50": 777.6055622881463,
"area_90": 3187.6372645120123,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.011201769245247507,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "5af600ef0e2a32b8af9db7226ca1d4f0",
"classification": {
"BBH": 0.05531084185737969,
"BNS": 5.662203543509598e-15,
"NSBH": 7.525452292177301e-13,
"Terrestrial": 0.9446891581418622
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-29T02:21:13Z",
"superevent_id": "S250829z",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T02:21:14.861204Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T02:21:14.861221Z",
"modified": "2025-08-29T02:21:14.869822Z"
}
},
{
"id": 10021,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773519,
"topic": "igwn.gwalert",
"uuid": "29ee05f2-fab7-41e8-a6f1-2e82984a8de0",
"title": "S250829z - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829z/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829z/view/"
},
"event": {
"far": 2.140930711156989e-05,
"time": "2025-08-29T02:16:14.547Z",
"group": "CBC",
"search": "AllSky",
"area_50": 777.6055622881463,
"area_90": 3187.6372645120123,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.011201769245247507,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "5af600ef0e2a32b8af9db7226ca1d4f0",
"classification": {
"BBH": 0.05531084185737969,
"BNS": 5.662203543509598e-15,
"NSBH": 7.525452292177301e-13,
"Terrestrial": 0.9446891581418622
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-29T02:16:38Z",
"superevent_id": "S250829z",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T02:16:40.091700Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T02:16:40.091720Z",
"modified": "2025-08-29T02:16:40.105699Z"
}
},
{
"id": 10020,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773515,
"topic": "igwn.gwalert",
"uuid": "cb1d3273-8251-4d2f-989d-6e580a031886",
"title": "S250829w - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829w/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250829w/view/"
},
"event": {
"far": 5.451331e-06,
"time": "2025-08-29T01:57:38.519Z",
"group": "CBC",
"search": "AllSky",
"area_50": 335.66500223164115,
"area_90": 1262.7172892202004,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.49050865800865795,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "1e9b7cc903c994eef42d9ee0cad37ba9",
"classification": {
"BBH": 0.0,
"BNS": 0.002605592,
"NSBH": 0.0,
"Terrestrial": 0.997394408
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-29T02:02:46Z",
"superevent_id": "S250829w",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T02:02:47.646293Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T02:02:47.646318Z",
"modified": "2025-08-29T02:02:47.662737Z"
}
},
{
"id": 10019,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773512,
"topic": "igwn.gwalert",
"uuid": "dfd9869b-dc4b-4c57-a71f-2a96073bd519",
"title": "S250829w - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250829w/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250829w/view/"
},
"event": {
"far": 2.162483546499877e-06,
"time": "2025-08-29T01:57:38.490Z",
"group": "CBC",
"search": "AllSky",
"area_50": 318.9840410330692,
"area_90": 1144.5867086567287,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.1321984126984127,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "7ced6194515e43692f49968d5701dfea",
"classification": {
"BBH": 0.0,
"BNS": 0.015471432306399604,
"NSBH": 0.0,
"Terrestrial": 0.9845285676936004
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-29T01:58:11Z",
"superevent_id": "S250829w",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T01:58:12.676204Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T01:58:12.676223Z",
"modified": "2025-08-29T01:58:12.687812Z"
}
},
{
"id": 10018,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773498,
"topic": "igwn.gwalert",
"uuid": "2d154ceb-d134-4a3b-b4c2-0514798ecb89",
"title": "S250829g - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250829g/view/"
},
"event": {
"far": 5.986910018732542e-07,
"time": "2025-08-29T00:31:44.899Z",
"group": "Burst",
"search": "AllSky",
"area_50": 6904.868819152271,
"area_90": 22231.210074353392,
"duration": 0.1875,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "3ae6554ad8cea7d0708c2b81ba9eef2a",
"classification": {},
"skymap_version": 0,
"central_frequency": 104.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-29T00:37:05Z",
"superevent_id": "S250829g",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T00:37:05.808927Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T00:37:05.808947Z",
"modified": "2025-08-29T00:37:05.818155Z"
}
},
{
"id": 10017,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773496,
"topic": "igwn.gwalert",
"uuid": "1db13c0b-757c-4145-b25d-42de45ebb446",
"title": "S250829g - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250829g/view/"
},
"event": {
"far": 5.986910018732542e-07,
"time": "2025-08-29T00:31:44.899Z",
"group": "Burst",
"search": "AllSky",
"area_50": 6904.868819152271,
"area_90": 22231.210074353392,
"duration": 0.1875,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "3ae6554ad8cea7d0708c2b81ba9eef2a",
"classification": {},
"skymap_version": 0,
"central_frequency": 104.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-29T00:32:31Z",
"superevent_id": "S250829g",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T00:32:31.930841Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T00:32:31.930860Z",
"modified": "2025-08-29T00:32:31.943603Z"
}
},
{
"id": 10016,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773494,
"topic": "igwn.gwalert",
"uuid": "ac4136be-077d-474c-8d1b-2bfe99b7ce21",
"title": "S250829d - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250829d/view/"
},
"event": {
"far": 2.3101284654381837e-05,
"time": "2025-08-29T00:23:33.415Z",
"group": "Burst",
"search": "AllSky",
"area_50": 7107.977881293374,
"area_90": 22647.499722378132,
"duration": 0.21875,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "05a50d98e18e5af48c4d9fd35b7a769e",
"classification": {},
"skymap_version": 0,
"central_frequency": 328.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-29T00:29:07Z",
"superevent_id": "S250829d",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T00:29:08.424958Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T00:29:08.424975Z",
"modified": "2025-08-29T00:29:08.437819Z"
}
},
{
"id": 10015,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773493,
"topic": "igwn.gwalert",
"uuid": "3a7f69bd-bee4-4774-9c89-c459bafdc030",
"title": "S250829d - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250829d/view/"
},
"event": {
"far": 2.3101284654381837e-05,
"time": "2025-08-29T00:23:33.415Z",
"group": "Burst",
"search": "AllSky",
"area_50": 7107.977881293374,
"area_90": 22647.499722378132,
"duration": 0.21875,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "05a50d98e18e5af48c4d9fd35b7a769e",
"classification": {},
"skymap_version": 0,
"central_frequency": 328.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-29T00:24:46Z",
"superevent_id": "S250829d",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-29T00:24:46.627713Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-29T00:24:46.627730Z",
"modified": "2025-08-29T00:24:46.660119Z"
}
},
{
"id": 10014,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773487,
"topic": "igwn.gwalert",
"uuid": "24ceb01d-4f2a-4ddb-950a-b9e6b30f8275",
"title": "S250828eo - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828eo/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828eo/view/"
},
"event": {
"far": 1.3705e-05,
"time": "2025-08-28T23:47:28.711Z",
"group": "CBC",
"search": "BBH",
"area_50": 918.1872478610165,
"area_90": 3082.7255588606167,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "ff3ffac1b53c7193ad2d406f9c0a7181",
"classification": {
"BBH": 0.0011951617767322897,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9988048382232677
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-28T23:53:16Z",
"superevent_id": "S250828eo",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T23:53:17.229816Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T23:53:17.229834Z",
"modified": "2025-08-28T23:53:17.243713Z"
}
},
{
"id": 10013,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773485,
"topic": "igwn.gwalert",
"uuid": "a81bdd47-c039-47d2-a249-8a4cb0c15857",
"title": "S250828eo - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828eo/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828eo/view/"
},
"event": {
"far": 1.3705e-05,
"time": "2025-08-28T23:47:28.711Z",
"group": "CBC",
"search": "BBH",
"area_50": 918.1872478610165,
"area_90": 3082.7255588606167,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "ff3ffac1b53c7193ad2d406f9c0a7181",
"classification": {
"BBH": 0.0011951617767322897,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9988048382232677
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-28T23:48:42Z",
"superevent_id": "S250828eo",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T23:48:43.418346Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T23:48:43.418364Z",
"modified": "2025-08-28T23:48:43.438466Z"
}
},
{
"id": 10012,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773479,
"topic": "igwn.gwalert",
"uuid": "8bb07781-a898-4215-b37f-92932f735521",
"title": "S250828ek - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828ek/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250828ek/view/"
},
"event": {
"far": 1.130839464099594e-05,
"time": "2025-08-28T23:26:20.111Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1530.451962042563,
"area_90": 5364.76498018978,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.015682288725766987,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "4bdc2583693f4e3ed59b55a22fcadcc3",
"classification": {
"BBH": 0.130458583788268,
"BNS": 4.707092590891929e-15,
"NSBH": 3.5748703559618024e-13,
"Terrestrial": 0.8695414162113698
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-28T23:31:24Z",
"superevent_id": "S250828ek",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T23:31:25.193573Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T23:31:25.193594Z",
"modified": "2025-08-28T23:31:25.205153Z"
}
},
{
"id": 10011,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773477,
"topic": "igwn.gwalert",
"uuid": "f85cc956-969f-4ab7-a617-482a1b687ed4",
"title": "S250828ek - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828ek/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828ek/view/"
},
"event": {
"far": 8.25585924980782e-06,
"time": "2025-08-28T23:26:20.132Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1514.7152061948536,
"area_90": 5640.8925894642525,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.015682288725766987,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "8359f37f51f1c6b67b8c1c9166b9fed0",
"classification": {
"BBH": 0.1448590350525385,
"BNS": 1.1614685708273626e-14,
"NSBH": 8.821510954461695e-13,
"Terrestrial": 0.8551409649465678
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-28T23:26:47Z",
"superevent_id": "S250828ek",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T23:26:49.147685Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T23:26:49.147704Z",
"modified": "2025-08-28T23:26:49.174999Z"
}
},
{
"id": 10010,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773463,
"topic": "igwn.gwalert",
"uuid": "91aa2cc1-fb07-47b7-9c55-33df3554b454",
"title": "S250828ef - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250828ef/view/"
},
"event": {
"far": 2.242795210329921e-05,
"time": "2025-08-28T22:32:44.422Z",
"group": "CBC",
"search": "AllSky",
"area_50": 738.9980546084325,
"area_90": 4612.757874080574,
"duration": null,
"pipeline": "aframe",
"properties": {
"HasNS": 0.0,
"HasSSM": 0.0,
"HasMassGap": 0.0004502025911660247,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "8080aa0be5185830b28dab75cb3489e8",
"classification": {
"BBH": 0.011732875092543718,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9882671249074563
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-28T22:37:42Z",
"superevent_id": "S250828ef",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T22:37:43.675052Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T22:37:43.675069Z",
"modified": "2025-08-28T22:37:43.695334Z"
}
},
{
"id": 10009,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773459,
"topic": "igwn.gwalert",
"uuid": "f1d7eaaa-589b-4411-94e9-e3d83350e076",
"title": "S250828ef - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250828ef/view/"
},
"event": {
"far": 2.242795210329921e-05,
"time": "2025-08-28T22:32:44.422Z",
"group": "CBC",
"search": "AllSky",
"area_50": 689.0600827183682,
"area_90": 4139.396258181475,
"duration": null,
"pipeline": "aframe",
"properties": {
"HasNS": 0.0,
"HasSSM": 0.0,
"HasMassGap": 0.0004502025911660247,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "a65dbe84df4b58ca242fc4a4eaa2f237",
"classification": {
"BBH": 0.011732875092543718,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9882671249074563
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-28T22:33:08Z",
"superevent_id": "S250828ef",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T22:33:08.861940Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T22:33:08.861959Z",
"modified": "2025-08-28T22:33:08.877846Z"
}
},
{
"id": 10008,
"sequence_number": 0,
"sequence_type": "INITIAL",
"message": {
"id": 5773435,
"topic": "gcn.classic.text.ICECUBE_CASCADE",
"uuid": "6eaac279-9070-4941-94bb-22edb8b95732",
"title": "GCN/AMON NOTICE",
"submitter": "",
"authors": "",
"data": {
"far": "0.3110 [yr^-1]",
"urls": {
"gcn": "https://gcn.gsfc.nasa.gov/notices_amon_icecube_cascade/141290_67759305.amon"
},
"title": "GCN/AMON NOTICE",
"energy": "116.73 [TeV]",
"src_ra": "35.6891d {+02h 22m 45s} (J2000),\n36.0591d {+02h 24m 14s} (current),\n34.9699d {+02h 19m 53s} (1950)",
"stream": "26",
"run_num": "141290",
"src_dec": "+26.1679d {+26d 10' 04\"} (J2000),\n+26.2836d {+26d 17' 01\"} (current),\n+25.9408d {+25d 56' 27\"} (1950)",
"comments": "IceCube Cascade event.\nThe position error is the combined statistical and the systematic.",
"revision": "0",
"sun_dist": "112.93 [deg] Sun_angle= 8.1 [hr] (West of Sun)",
"event_num": "67759305",
"moon_dist": "172.10 [deg]",
"src_error": "21.34 [deg radius, stat+systematic, 90% containment]",
"sun_postn": "157.54d {+10h 30m 09s} +9.40d {+09d 24' 13\"}",
"ecl_coords": "41.98, 11.32 [deg] ecliptic lon,lat of the event",
"event_name": "IceCubeCascade-250828a",
"gal_coords": "147.28,-32.35 [deg] galactic lon,lat of the event",
"moon_postn": "215.26d {+14h 21m 03s} -18.42d {-18d 25' 14\"}",
"signalness": "9.0012e-01 [dn]",
"notice_date": "Thu 28 Aug 25 19:32:52 UT",
"notice_type": "ICECUBE Cascade",
"src_error50": "11.71 [deg radius, stat+systematic, 50% containment]",
"discovery_date": "20915 TJD; 240 DOY; 25/08/28 (yy/mm/dd)",
"discovery_time": "70277 SOD {19:31:17.52} UT",
"skymap_png_url": "https://roc.icecube.wisc.edu/public/hese_cascades/hese_60915_run00141290.evt000067759305.png",
"skymap_fits_url": "https://roc.icecube.wisc.edu/public/hese_cascades/hese_60915_run00141290.evt000067759305.fits"
},
"message_text": "TITLE: GCN/AMON NOTICE\nNOTICE_DATE: Thu 28 Aug 25 19:32:52 UT\nNOTICE_TYPE: ICECUBE Cascade \nEVENT_NAME: IceCubeCascade-250828a\nSTREAM: 26\nRUN_NUM: 141290\nEVENT_NUM: 67759305\nSRC_RA: 35.6891d {+02h 22m 45s} (J2000),\n 36.0591d {+02h 24m 14s} (current),\n 34.9699d {+02h 19m 53s} (1950)\nSRC_DEC: +26.1679d {+26d 10' 04\"} (J2000),\n +26.2836d {+26d 17' 01\"} (current),\n +25.9408d {+25d 56' 27\"} (1950)\nSRC_ERROR: 21.34 [deg radius, stat+systematic, 90% containment]\nSRC_ERROR50: 11.71 [deg radius, stat+systematic, 50% containment]\nDISCOVERY_DATE: 20915 TJD; 240 DOY; 25/08/28 (yy/mm/dd)\nDISCOVERY_TIME: 70277 SOD {19:31:17.52} UT\nREVISION: 0\nENERGY: 116.73 [TeV]\nSIGNALNESS: 9.0012e-01 [dn]\nFAR: 0.3110 [yr^-1]\nSUN_POSTN: 157.54d {+10h 30m 09s} +9.40d {+09d 24' 13\"}\nSUN_DIST: 112.93 [deg] Sun_angle= 8.1 [hr] (West of Sun)\nMOON_POSTN: 215.26d {+14h 21m 03s} -18.42d {-18d 25' 14\"}\nMOON_DIST: 172.10 [deg]\nGAL_COORDS: 147.28,-32.35 [deg] galactic lon,lat of the event\nECL_COORDS: 41.98, 11.32 [deg] ecliptic lon,lat of the event\nSKYMAP_FITS_URL: https://roc.icecube.wisc.edu/public/hese_cascades/hese_60915_run00141290.evt000067759305.fits\nSKYMAP_PNG_URL: https://roc.icecube.wisc.edu/public/hese_cascades/hese_60915_run00141290.evt000067759305.png\nCOMMENTS: IceCube Cascade event. \nCOMMENTS: The position error is the combined statistical and the systematic. \n",
"published": "2025-08-28T19:32:52Z",
"message_parser": "Icecube Notice Plaintext Parser v1",
"retracted": false,
"created": "2025-08-28T19:32:54.142386Z",
"modified": "2025-08-28T19:32:54.159706Z"
}
},
{
"id": 10007,
"sequence_number": 4,
"sequence_type": "UPDATE",
"message": {
"id": 5773396,
"topic": "igwn.gwalert",
"uuid": "f31d56e7-0d3c-4a9e-a521-14ff75fce43a",
"title": "S250827fo - UPDATE",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250827fo/files/bayestar.multiorder.fits,2",
"gracedb": "https://gracedb.ligo.org/superevents/S250827fo/view/"
},
"event": {
"far": 2.255182e-11,
"time": "2025-08-27T22:49:40.311Z",
"group": "CBC",
"search": "AllSky",
"area_50": 149.02707787780784,
"area_90": 469.7946179069507,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.0,
"HasSSM": 0.0,
"HasMassGap": 0.0002557871850620284,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": true,
"skymap_hash": "274f58d484f6de5a86fd912f9a6d1e7a",
"classification": {
"BBH": 0.9999077555649349,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 9.224443506505861e-05
},
"skymap_version": 2,
"central_frequency": null
},
"alert_type": "UPDATE",
"sequence_num": 4,
"time_created": "2025-08-28T15:38:32Z",
"superevent_id": "S250827fo",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T15:38:32.815563Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T15:38:32.815582Z",
"modified": "2025-08-28T15:38:32.847315Z"
}
},
{
"id": 10006,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773335,
"topic": "igwn.gwalert",
"uuid": "81e40eb1-305f-47a2-9f82-7f4362c51c91",
"title": "S250828db - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828db/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828db/view/"
},
"event": {
"far": 2.48678e-06,
"time": "2025-08-28T09:50:41.771Z",
"group": "Burst",
"search": "AllSky",
"area_50": 564.8446232271154,
"area_90": 2590.8994827668726,
"duration": 0.055472,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "2a59e20c156770a8128331c91ff560ef",
"classification": {},
"skymap_version": 0,
"central_frequency": 154.699936
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-28T09:56:52Z",
"superevent_id": "S250828db",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T09:56:53.375910Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T09:56:53.375928Z",
"modified": "2025-08-28T09:56:53.381430Z"
}
},
{
"id": 10005,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773334,
"topic": "igwn.gwalert",
"uuid": "68efb2a7-6c4c-4c58-a163-8e4a4d961612",
"title": "S250828db - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828db/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828db/view/"
},
"event": {
"far": 2.48678e-06,
"time": "2025-08-28T09:50:41.771Z",
"group": "Burst",
"search": "AllSky",
"area_50": 564.8446232271154,
"area_90": 2590.8994827668726,
"duration": 0.055472,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "2a59e20c156770a8128331c91ff560ef",
"classification": {},
"skymap_version": 0,
"central_frequency": 154.699936
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-28T09:52:06Z",
"superevent_id": "S250828db",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T09:52:06.670003Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T09:52:06.670019Z",
"modified": "2025-08-28T09:52:06.676765Z"
}
},
{
"id": 10004,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773324,
"topic": "igwn.gwalert",
"uuid": "31b92fd9-c9ae-4bf2-bad8-eb6fc14ee774",
"title": "S250828co - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828co/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828co/view/"
},
"event": {
"far": 1.8499e-05,
"time": "2025-08-28T08:55:20.727Z",
"group": "Burst",
"search": "AllSky",
"area_50": 933.714180297423,
"area_90": 2402.897706239571,
"duration": 0.293899,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "4ffdcc2173b4db15153026f03b40ed4e",
"classification": {},
"skymap_version": 0,
"central_frequency": 101.051315
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-28T09:02:33Z",
"superevent_id": "S250828co",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T09:02:34.919717Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T09:02:34.919739Z",
"modified": "2025-08-28T09:02:34.925133Z"
}
},
{
"id": 10003,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773323,
"topic": "igwn.gwalert",
"uuid": "dd5c0c11-07b8-48d6-815a-05803f708a83",
"title": "S250828co - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828co/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828co/view/"
},
"event": {
"far": 1.8499e-05,
"time": "2025-08-28T08:55:20.727Z",
"group": "Burst",
"search": "AllSky",
"area_50": 933.714180297423,
"area_90": 2402.897706239571,
"duration": 0.293899,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "4ffdcc2173b4db15153026f03b40ed4e",
"classification": {},
"skymap_version": 0,
"central_frequency": 101.051315
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-28T08:57:58Z",
"superevent_id": "S250828co",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T08:58:00.110475Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T08:58:00.110495Z",
"modified": "2025-08-28T08:58:00.158744Z"
}
},
{
"id": 10002,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773318,
"topic": "igwn.gwalert",
"uuid": "cdeda560-9276-4af4-ad48-8dfcb5060f22",
"title": "S250828cl - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828cl/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250828cl/view/"
},
"event": {
"far": 1.062806656448079e-05,
"time": "2025-08-28T08:33:57.338Z",
"group": "CBC",
"search": "AllSky",
"area_50": 492.66536973895506,
"area_90": 2311.414698911554,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "30b0f04c413e8738d51a93f855fdbefa",
"classification": {
"BBH": 0.00015654627238351432,
"BNS": 0.0,
"NSBH": 0.0013335294957019495,
"Terrestrial": 0.9985099242319145
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-28T08:39:04Z",
"superevent_id": "S250828cl",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T08:39:04.788390Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T08:39:04.788407Z",
"modified": "2025-08-28T08:39:04.793286Z"
}
},
{
"id": 10001,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773317,
"topic": "igwn.gwalert",
"uuid": "b047913d-cdad-43b2-a129-e70091e8567c",
"title": "S250828cl - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828cl/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828cl/view/"
},
"event": {
"far": 1.062806656448079e-05,
"time": "2025-08-28T08:33:57.338Z",
"group": "CBC",
"search": "AllSky",
"area_50": 360.2667972068934,
"area_90": 1827.1422656247103,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.02134920634920635,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "7b406d914f210afc5643dfc8159fc8a8",
"classification": {
"BBH": 0.00015550380070796047,
"BNS": 0.0,
"NSBH": 0.0013345719673774638,
"Terrestrial": 0.9985099242319145
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-28T08:34:29Z",
"superevent_id": "S250828cl",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T08:34:30.057954Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T08:34:30.057973Z",
"modified": "2025-08-28T08:34:30.064532Z"
}
},
{
"id": 10000,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773313,
"topic": "igwn.gwalert",
"uuid": "e9a326a7-9195-4422-9b36-af00a4d1d39a",
"title": "S250828ch - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828ch/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250828ch/view/"
},
"event": {
"far": 4.85052854749752e-07,
"time": "2025-08-28T08:14:37.326Z",
"group": "CBC",
"search": "AllSky",
"area_50": 524.1388814343737,
"area_90": 2219.0923979383256,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.01766641570989397,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "2b420d8bbd79be6aaafaec1e73f37f93",
"classification": {
"BBH": 0.7731542806383215,
"BNS": 4.1030750301996377e-16,
"NSBH": 2.926791308739714e-14,
"Terrestrial": 0.22684571936164877
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-28T08:19:36Z",
"superevent_id": "S250828ch",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T08:19:37.672760Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T08:19:37.672780Z",
"modified": "2025-08-28T08:19:37.675993Z"
}
},
{
"id": 9999,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773312,
"topic": "igwn.gwalert",
"uuid": "6607ce67-4301-4c6c-ae60-0930cb4d1269",
"title": "S250828cg - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828cg/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828cg/view/"
},
"event": {
"far": 1.642585839536475e-05,
"time": "2025-08-28T08:11:23.774Z",
"group": "CBC",
"search": "AllSky",
"area_50": 705.6361322112887,
"area_90": 3009.7070117272447,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.012110860154338415,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "b11cc63fdcbeacb2344965699ed019e4",
"classification": {
"BBH": 0.08000285679767134,
"BNS": 8.546888493405004e-15,
"NSBH": 6.097284083178205e-13,
"Terrestrial": 0.9199971432017103
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-28T08:16:26Z",
"superevent_id": "S250828cg",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T08:16:27.263415Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T08:16:27.263433Z",
"modified": "2025-08-28T08:16:27.265892Z"
}
},
{
"id": 9998,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773311,
"topic": "igwn.gwalert",
"uuid": "ce99ed63-579f-4ab4-bdd6-f7f57ee705bc",
"title": "S250828ch - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828ch/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828ch/view/"
},
"event": {
"far": 4.785946069968346e-06,
"time": "2025-08-28T08:14:37.325Z",
"group": "CBC",
"search": "AllSky",
"area_50": 584.9876707121834,
"area_90": 2225.8067471000145,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.019888637932116194,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "3a465c8cfb03ba0bd8e2e96928573de9",
"classification": {
"BBH": 0.3019345860109741,
"BNS": 1.5498229193694592e-15,
"NSBH": 1.1220779496071003e-13,
"Terrestrial": 0.6980654139889122
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-28T08:15:01Z",
"superevent_id": "S250828ch",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T08:15:02.905905Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T08:15:02.905922Z",
"modified": "2025-08-28T08:15:02.912678Z"
}
},
{
"id": 9997,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773310,
"topic": "igwn.gwalert",
"uuid": "49653c47-fe9b-42cc-aada-437846ee8f55",
"title": "S250828cg - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828cg/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828cg/view/"
},
"event": {
"far": 1.642585839536475e-05,
"time": "2025-08-28T08:11:23.774Z",
"group": "CBC",
"search": "AllSky",
"area_50": 705.6361322112887,
"area_90": 3009.7070117272447,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.012110860154338415,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "b11cc63fdcbeacb2344965699ed019e4",
"classification": {
"BBH": 0.08000285679767134,
"BNS": 8.546888493405004e-15,
"NSBH": 6.097284083178205e-13,
"Terrestrial": 0.9199971432017103
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-28T08:11:51Z",
"superevent_id": "S250828cg",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T08:11:52.476960Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T08:11:52.476978Z",
"modified": "2025-08-28T08:11:52.480608Z"
}
},
{
"id": 9996,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773302,
"topic": "igwn.gwalert",
"uuid": "2cee9452-1c8d-4731-a0d1-e018304d903f",
"title": "S250828by - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250828by/view/"
},
"event": {
"far": 1.8867515200840327e-05,
"time": "2025-08-28T07:35:00.741Z",
"group": "Burst",
"search": "AllSky",
"area_50": 6953.547850574518,
"area_90": 22415.015382654634,
"duration": 0.3125,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "15f006d546c6b5a77511a6d4f1f8d34f",
"classification": {},
"skymap_version": 0,
"central_frequency": 88.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-28T07:40:26Z",
"superevent_id": "S250828by",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T07:40:27.487053Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T07:40:27.487073Z",
"modified": "2025-08-28T07:40:27.492955Z"
}
},
{
"id": 9995,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773301,
"topic": "igwn.gwalert",
"uuid": "f8fe9078-6238-412d-9693-f7318b203333",
"title": "S250828by - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250828by/view/"
},
"event": {
"far": 1.8867515200840327e-05,
"time": "2025-08-28T07:35:00.741Z",
"group": "Burst",
"search": "AllSky",
"area_50": 6953.547850574518,
"area_90": 22415.015382654634,
"duration": 0.3125,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "15f006d546c6b5a77511a6d4f1f8d34f",
"classification": {},
"skymap_version": 0,
"central_frequency": 88.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-28T07:35:51Z",
"superevent_id": "S250828by",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T07:35:52.708955Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T07:35:52.708973Z",
"modified": "2025-08-28T07:35:52.711673Z"
}
},
{
"id": 9994,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773300,
"topic": "igwn.gwalert",
"uuid": "e6f98729-c2ff-4f0b-99e2-8b4066de52f8",
"title": "S250828bx - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828bx/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828bx/view/"
},
"event": {
"far": 1.51009e-05,
"time": "2025-08-28T07:28:49.281Z",
"group": "CBC",
"search": "BBH",
"area_50": 1830.499440205555,
"area_90": 5855.751762638312,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.05978696303696305,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "6b9d136f1d4b0c8bab6748a9216f1453",
"classification": {
"BBH": 0.0021496856587139845,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.997850314341286
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-28T07:35:00Z",
"superevent_id": "S250828bx",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T07:35:00.468821Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T07:35:00.468839Z",
"modified": "2025-08-28T07:35:00.476044Z"
}
},
{
"id": 9993,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773299,
"topic": "igwn.gwalert",
"uuid": "4830b194-c7c1-4109-a920-5515949b8fb7",
"title": "S250828bx - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828bx/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828bx/view/"
},
"event": {
"far": 1.51009e-05,
"time": "2025-08-28T07:28:49.281Z",
"group": "CBC",
"search": "BBH",
"area_50": 1830.499440205555,
"area_90": 5855.751762638312,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.05978696303696305,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "6b9d136f1d4b0c8bab6748a9216f1453",
"classification": {
"BBH": 0.0021496856587139845,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.997850314341286
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-28T07:30:25Z",
"superevent_id": "S250828bx",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T07:30:26.792784Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T07:30:26.792804Z",
"modified": "2025-08-28T07:30:26.801705Z"
}
},
{
"id": 9992,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773294,
"topic": "igwn.gwalert",
"uuid": "3e653da8-aac3-4ebc-a3a5-530f219c3e1e",
"title": "S250828br - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828br/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828br/view/"
},
"event": {
"far": 1.360919184319696e-05,
"time": "2025-08-28T06:53:11.722Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1004.634493317767,
"area_90": 3493.979445014088,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "afc47f570117468baf340c6f5c14afce",
"classification": {
"BBH": 0.0836019188139157,
"BNS": 1.3334601123480385e-14,
"NSBH": 9.321280474611322e-13,
"Terrestrial": 0.9163980811851389
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-28T06:58:12Z",
"superevent_id": "S250828br",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T06:58:13.574307Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T06:58:13.574326Z",
"modified": "2025-08-28T06:58:13.577015Z"
}
},
{
"id": 9991,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773292,
"topic": "igwn.gwalert",
"uuid": "5ee32ccd-57d9-4d59-a61e-dad9651998dc",
"title": "S250828bq - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828bq/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828bq/view/"
},
"event": {
"far": 1.13138e-05,
"time": "2025-08-28T06:51:17.222Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1090.242445129306,
"area_90": 5111.298299336007,
"duration": 0.025136,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "7ddaa47658fdf17aba04b97888a13977",
"classification": {},
"skymap_version": 0,
"central_frequency": 78.063248
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-28T06:57:56Z",
"superevent_id": "S250828bq",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T06:57:57.499193Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T06:57:57.499212Z",
"modified": "2025-08-28T06:57:57.503694Z"
}
},
{
"id": 9990,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773290,
"topic": "igwn.gwalert",
"uuid": "b086d5bb-da2e-41df-bf19-203cf00852b2",
"title": "S250828br - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828br/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828br/view/"
},
"event": {
"far": 1.360919184319696e-05,
"time": "2025-08-28T06:53:11.722Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1004.634493317767,
"area_90": 3493.979445014088,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "afc47f570117468baf340c6f5c14afce",
"classification": {
"BBH": 0.0836019188139157,
"BNS": 1.3334601123480385e-14,
"NSBH": 9.321280474611322e-13,
"Terrestrial": 0.9163980811851389
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-28T06:53:37Z",
"superevent_id": "S250828br",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T06:53:38.754613Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T06:53:38.754632Z",
"modified": "2025-08-28T06:53:38.757355Z"
}
},
{
"id": 9989,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773289,
"topic": "igwn.gwalert",
"uuid": "0e3ccef9-c269-4e52-95bd-6a3847e5c6dc",
"title": "S250828bq - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828bq/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828bq/view/"
},
"event": {
"far": 1.13138e-05,
"time": "2025-08-28T06:51:17.222Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1090.242445129306,
"area_90": 5111.298299336007,
"duration": 0.025136,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "7ddaa47658fdf17aba04b97888a13977",
"classification": {},
"skymap_version": 0,
"central_frequency": 78.063248
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-28T06:53:23Z",
"superevent_id": "S250828bq",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T06:53:23.694025Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T06:53:23.694043Z",
"modified": "2025-08-28T06:53:23.700219Z"
}
},
{
"id": 9988,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773288,
"topic": "igwn.gwalert",
"uuid": "6d635ba1-7548-4f91-a34b-c2fac6104879",
"title": "S250828bn - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828bn/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828bn/view/"
},
"event": {
"far": 3.066069666601834e-06,
"time": "2025-08-28T06:44:12.405Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1051.6349374495926,
"area_90": 4100.7887505017625,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.021309663394411253,
"HasMassGap": 0.1653988079775186,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "1c77d051dc2c9ed6e2436e70b05717ab",
"classification": {
"BBH": 0.3964204512636686,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.6035795487363314
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-28T06:49:15Z",
"superevent_id": "S250828bn",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T06:49:15.906660Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T06:49:15.906689Z",
"modified": "2025-08-28T06:49:15.912950Z"
}
},
{
"id": 9987,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773287,
"topic": "igwn.gwalert",
"uuid": "6886c536-ec26-4321-b29a-abddfd4616ca",
"title": "S250828bn - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828bn/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828bn/view/"
},
"event": {
"far": 3.066069666601834e-06,
"time": "2025-08-28T06:44:12.405Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1051.6349374495926,
"area_90": 4100.7887505017625,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.021309663394411253,
"HasMassGap": 0.1653988079775186,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "1c77d051dc2c9ed6e2436e70b05717ab",
"classification": {
"BBH": 0.3964204512636686,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.6035795487363314
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-28T06:44:40Z",
"superevent_id": "S250828bn",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T06:44:42.034265Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T06:44:42.034293Z",
"modified": "2025-08-28T06:44:42.047211Z"
}
},
{
"id": 9986,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773275,
"topic": "igwn.gwalert",
"uuid": "c8ecdd66-f018-4fb7-b5c6-9e3886a48f9c",
"title": "S250828bf - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250828bf/view/"
},
"event": {
"far": 2.190546801652933e-05,
"time": "2025-08-28T05:28:06.585Z",
"group": "Burst",
"search": "AllSky",
"area_50": 6132.718665557998,
"area_90": 21183.771605129856,
"duration": 0.3125,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "ce1b877a01b39b0e9255a0f64ef144a3",
"classification": {},
"skymap_version": 0,
"central_frequency": 120.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-28T05:33:42Z",
"superevent_id": "S250828bf",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T05:33:43.187422Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T05:33:43.187441Z",
"modified": "2025-08-28T05:33:43.190464Z"
}
},
{
"id": 9985,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773272,
"topic": "igwn.gwalert",
"uuid": "3da42121-99ef-4bca-8722-4fcfac52ea7e",
"title": "S250828bf - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250828bf/view/"
},
"event": {
"far": 2.190546801652933e-05,
"time": "2025-08-28T05:28:06.585Z",
"group": "Burst",
"search": "AllSky",
"area_50": 6132.718665557998,
"area_90": 21183.771605129856,
"duration": 0.3125,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "ce1b877a01b39b0e9255a0f64ef144a3",
"classification": {},
"skymap_version": 0,
"central_frequency": 120.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-28T05:29:07Z",
"superevent_id": "S250828bf",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T05:29:08.411379Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T05:29:08.411399Z",
"modified": "2025-08-28T05:29:08.424139Z"
}
},
{
"id": 9984,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773259,
"topic": "igwn.gwalert",
"uuid": "0e1f0744-99d7-4877-8d0a-71a2489ca3cf",
"title": "S250828al - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828al/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250828al/view/"
},
"event": {
"far": 5.817041e-06,
"time": "2025-08-28T03:58:03.511Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1510.0990911461924,
"area_90": 5531.784415586802,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.037773645194405396,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "d51f952715c1e8dd9db7809a502384b3",
"classification": {
"BBH": 0.1369963818542778,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.8630036181457222
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-28T04:03:04Z",
"superevent_id": "S250828al",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T04:03:05.752069Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T04:03:05.752090Z",
"modified": "2025-08-28T04:03:05.757940Z"
}
},
{
"id": 9983,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773257,
"topic": "igwn.gwalert",
"uuid": "1abc36db-49a7-4ea1-8d09-cddaf2a747c6",
"title": "S250828al - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828al/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828al/view/"
},
"event": {
"far": 1.578361381473867e-05,
"time": "2025-08-28T03:58:03.541Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1637.252078395684,
"area_90": 6008.5032060667445,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.09227406025626811,
"HasMassGap": 0.012110860154338415,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "4a754518ce39a7997390e47779f2c8c9",
"classification": {
"BBH": 0.070367030508571,
"BNS": 1.0811632211158895e-12,
"NSBH": 8.087713099985253e-11,
"Terrestrial": 0.9296329694094707
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-28T03:58:29Z",
"superevent_id": "S250828al",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T03:58:30.035567Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T03:58:30.035585Z",
"modified": "2025-08-28T03:58:30.042955Z"
}
},
{
"id": 9982,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773255,
"topic": "igwn.gwalert",
"uuid": "f820900a-25aa-4d64-a0e7-6550b3427aff",
"title": "S250828aj - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828aj/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828aj/view/"
},
"event": {
"far": 7.585322028421351e-06,
"time": "2025-08-28T03:35:00.346Z",
"group": "CBC",
"search": "AllSky",
"area_50": 340.0188380161741,
"area_90": 1350.6332985560703,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.49050865800865795,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "b1a0a9b517cbd853b0858f47e570fe3d",
"classification": {
"BBH": 0.0,
"BNS": 0.0051122449312335895,
"NSBH": 0.0,
"Terrestrial": 0.9948877550687664
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-28T03:40:06Z",
"superevent_id": "S250828aj",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T03:40:07.211704Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T03:40:07.211721Z",
"modified": "2025-08-28T03:40:07.219250Z"
}
},
{
"id": 9981,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773253,
"topic": "igwn.gwalert",
"uuid": "86adbca6-7fce-4e1c-a923-a582fe8c75c3",
"title": "S250828aj - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828aj/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828aj/view/"
},
"event": {
"far": 7.585322028421351e-06,
"time": "2025-08-28T03:35:00.346Z",
"group": "CBC",
"search": "AllSky",
"area_50": 340.0188380161741,
"area_90": 1350.6332985560703,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.49050865800865795,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "b1a0a9b517cbd853b0858f47e570fe3d",
"classification": {
"BBH": 0.0,
"BNS": 0.0051122449312335895,
"NSBH": 0.0,
"Terrestrial": 0.9948877550687664
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-28T03:35:31Z",
"superevent_id": "S250828aj",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T03:35:32.406962Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T03:35:32.406980Z",
"modified": "2025-08-28T03:35:32.450445Z"
}
},
{
"id": 9980,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773248,
"topic": "igwn.gwalert",
"uuid": "fe1334f1-8576-43c2-8fae-40e094e3ad84",
"title": "S250828ac - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828ac/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250828ac/view/"
},
"event": {
"far": 2.063877844430826e-05,
"time": "2025-08-28T02:46:38.083Z",
"group": "CBC",
"search": "AllSky",
"area_50": 799.6370204749394,
"area_90": 3071.8147414728714,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.14035469636276324,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "126fc84fab9c517d3ec66ca5ace9f6e7",
"classification": {
"BBH": 0.018963282537863432,
"BNS": 0.0,
"NSBH": 0.008012674013118407,
"Terrestrial": 0.9730240434490182
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-28T02:51:43Z",
"superevent_id": "S250828ac",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T02:51:43.581626Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T02:51:43.581643Z",
"modified": "2025-08-28T02:51:43.584985Z"
}
},
{
"id": 9979,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773246,
"topic": "igwn.gwalert",
"uuid": "127c8082-eb4e-4359-85b0-d19092010ca4",
"title": "S250828ac - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828ac/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828ac/view/"
},
"event": {
"far": 2.063877844430826e-05,
"time": "2025-08-28T02:46:38.088Z",
"group": "CBC",
"search": "AllSky",
"area_50": 825.2354766538799,
"area_90": 3122.172360185541,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.23046619433607052,
"HasMassGap": 0.04160763762570754,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "c11bfae67ed396663bfd3eeb1bd170ed",
"classification": {
"BBH": 0.018412397334511995,
"BNS": 0.0,
"NSBH": 0.008563559216469816,
"Terrestrial": 0.9730240434490182
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-28T02:47:07Z",
"superevent_id": "S250828ac",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T02:47:08.774672Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T02:47:08.774689Z",
"modified": "2025-08-28T02:47:08.782388Z"
}
},
{
"id": 9978,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773241,
"topic": "igwn.gwalert",
"uuid": "75971ee4-49da-498f-a0db-6f17baa83ff5",
"title": "S250828y - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828y/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828y/view/"
},
"event": {
"far": 3.80942e-06,
"time": "2025-08-28T02:13:35.035Z",
"group": "Burst",
"search": "AllSky",
"area_50": 2034.4477959918681,
"area_90": 8558.27730021827,
"duration": 0.032933,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "09e921f626fd99fff21aee8f87566bcd",
"classification": {},
"skymap_version": 0,
"central_frequency": 1205.190674
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-28T02:20:32Z",
"superevent_id": "S250828y",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T02:20:33.378672Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T02:20:33.378692Z",
"modified": "2025-08-28T02:20:33.384574Z"
}
},
{
"id": 9977,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773239,
"topic": "igwn.gwalert",
"uuid": "aebcc91c-dcc3-4b13-8d9e-264d75b232bb",
"title": "S250828y - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828y/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828y/view/"
},
"event": {
"far": 3.80942e-06,
"time": "2025-08-28T02:13:35.035Z",
"group": "Burst",
"search": "AllSky",
"area_50": 2034.4477959918681,
"area_90": 8558.27730021827,
"duration": 0.032933,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "09e921f626fd99fff21aee8f87566bcd",
"classification": {},
"skymap_version": 0,
"central_frequency": 1205.190674
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-28T02:15:57Z",
"superevent_id": "S250828y",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T02:15:58.603400Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T02:15:58.603415Z",
"modified": "2025-08-28T02:15:58.614858Z"
}
},
{
"id": 9976,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773235,
"topic": "igwn.gwalert",
"uuid": "e23e1b2c-510d-4290-af9f-134afd8959ab",
"title": "S250828x - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828x/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828x/view/"
},
"event": {
"far": 2.035134e-05,
"time": "2025-08-28T01:49:23.434Z",
"group": "CBC",
"search": "AllSky",
"area_50": 469.32251523151945,
"area_90": 1609.5553881037154,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.0,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "c3b8836d9df1730ff49a09c9223144ce",
"classification": {
"BBH": 0.0,
"BNS": 0.0006531,
"NSBH": 0.000102047,
"Terrestrial": 0.999244853
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-28T01:54:50Z",
"superevent_id": "S250828x",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T01:54:51.391728Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T01:54:51.391744Z",
"modified": "2025-08-28T01:54:51.401792Z"
}
},
{
"id": 9975,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773234,
"topic": "igwn.gwalert",
"uuid": "004fb989-e75e-4f97-bdd8-85b341c55d0f",
"title": "S250828x - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828x/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828x/view/"
},
"event": {
"far": 2.035134e-05,
"time": "2025-08-28T01:49:23.434Z",
"group": "CBC",
"search": "AllSky",
"area_50": 469.32251523151945,
"area_90": 1609.5553881037154,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.0,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "c3b8836d9df1730ff49a09c9223144ce",
"classification": {
"BBH": 0.0,
"BNS": 0.0006531,
"NSBH": 0.000102047,
"Terrestrial": 0.999244853
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-28T01:50:14Z",
"superevent_id": "S250828x",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T01:50:15.598476Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T01:50:15.598493Z",
"modified": "2025-08-28T01:50:15.607167Z"
}
},
{
"id": 9974,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773230,
"topic": "igwn.gwalert",
"uuid": "11f58ba8-6a80-4e74-b05f-8c3bd196de03",
"title": "S250828u - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828u/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828u/view/"
},
"event": {
"far": 1.87476e-05,
"time": "2025-08-28T01:11:45.133Z",
"group": "CBC",
"search": "BBH",
"area_50": 1444.4243634084185,
"area_90": 4669.829841954933,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "569d0710b5df1c8dac3a262e5d6cfff4",
"classification": {
"BBH": 0.001240531761079744,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9987594682389203
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-28T01:19:48Z",
"superevent_id": "S250828u",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T01:19:48.728299Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T01:19:48.728318Z",
"modified": "2025-08-28T01:19:48.732584Z"
}
},
{
"id": 9973,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773227,
"topic": "igwn.gwalert",
"uuid": "56c918b5-08e9-4329-a6ff-60000b4b677a",
"title": "S250828u - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828u/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828u/view/"
},
"event": {
"far": 1.87476e-05,
"time": "2025-08-28T01:11:45.133Z",
"group": "CBC",
"search": "BBH",
"area_50": 1444.4243634084185,
"area_90": 4669.829841954933,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "569d0710b5df1c8dac3a262e5d6cfff4",
"classification": {
"BBH": 0.001240531761079744,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9987594682389203
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-28T01:15:14Z",
"superevent_id": "S250828u",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T01:15:15.043275Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T01:15:15.043294Z",
"modified": "2025-08-28T01:15:15.048072Z"
}
},
{
"id": 9972,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773221,
"topic": "igwn.gwalert",
"uuid": "b11d9fc3-54c4-4a42-94c9-3c8cea568451",
"title": "S250828g - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828g/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250828g/view/"
},
"event": {
"far": 1.029634e-05,
"time": "2025-08-28T00:22:50.546Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1071.5681615233575,
"area_90": 4204.021868862736,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.2588952606969366,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "f47fb9f39a68da73190846808cf3750b",
"classification": {
"BBH": 0.07578959780883211,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9242104021911679
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-28T00:27:52Z",
"superevent_id": "S250828g",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T00:27:53.652123Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T00:27:53.652140Z",
"modified": "2025-08-28T00:27:53.655659Z"
}
},
{
"id": 9971,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773217,
"topic": "igwn.gwalert",
"uuid": "2c8b2a84-7a6a-498f-9786-dfc8a3eb7fdf",
"title": "S250828g - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828g/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828g/view/"
},
"event": {
"far": 1.409762480325137e-05,
"time": "2025-08-28T00:22:50.563Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1142.2786511323984,
"area_90": 4308.933574514131,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.015682288725766987,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "c52f8b022cae58ddb3d5b3e1489975b3",
"classification": {
"BBH": 0.10003577456954237,
"BNS": 7.770220299864849e-15,
"NSBH": 4.2725899911331446e-09,
"Terrestrial": 0.8999642211578599
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-28T00:23:17Z",
"superevent_id": "S250828g",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T00:23:17.811045Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T00:23:17.811062Z",
"modified": "2025-08-28T00:23:17.814543Z"
}
},
{
"id": 9970,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773215,
"topic": "igwn.gwalert",
"uuid": "1cfc333b-9b8e-4dcc-a6e6-af3cbe2e7d3e",
"title": "S250828d - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250828d/view/"
},
"event": {
"far": 2.195906286838156e-05,
"time": "2025-08-28T00:11:41.330Z",
"group": "Burst",
"search": "AllSky",
"area_50": 6972.851604414375,
"area_90": 22467.051588657727,
"duration": 0.15625,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "3fe74f081ed4963bf74ae8bbad414be1",
"classification": {},
"skymap_version": 0,
"central_frequency": 112.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-28T00:17:18Z",
"superevent_id": "S250828d",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T00:17:18.913675Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T00:17:18.913695Z",
"modified": "2025-08-28T00:17:18.926998Z"
}
},
{
"id": 9969,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773214,
"topic": "igwn.gwalert",
"uuid": "3de28250-7169-473a-a214-d54ea9b87fc1",
"title": "S250828d - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250828d/view/"
},
"event": {
"far": 2.195906286838156e-05,
"time": "2025-08-28T00:11:41.330Z",
"group": "Burst",
"search": "AllSky",
"area_50": 6972.851604414375,
"area_90": 22467.051588657727,
"duration": 0.15625,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "3fe74f081ed4963bf74ae8bbad414be1",
"classification": {},
"skymap_version": 0,
"central_frequency": 112.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-28T00:12:43Z",
"superevent_id": "S250828d",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T00:12:45.052637Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T00:12:45.052698Z",
"modified": "2025-08-28T00:12:45.080739Z"
}
},
{
"id": 9968,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773213,
"topic": "igwn.gwalert",
"uuid": "d1ce522f-56e6-49a5-b019-6252100e993a",
"title": "S250828a - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828a/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250828a/view/"
},
"event": {
"far": 1.47848161883802e-05,
"time": "2025-08-28T00:00:01.266Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1337.6242470552975,
"area_90": 5978.288634839143,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.015682288725766987,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "71b7f1ee5bcdfd21615356a4a2031787",
"classification": {
"BBH": 0.09321995639577976,
"BNS": 2.447330196286295e-15,
"NSBH": 1.8542715544457074e-13,
"Terrestrial": 0.9067800436040324
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-28T00:05:01Z",
"superevent_id": "S250828a",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T00:05:02.868108Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T00:05:02.868126Z",
"modified": "2025-08-28T00:05:02.875333Z"
}
},
{
"id": 9967,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773212,
"topic": "igwn.gwalert",
"uuid": "242d8033-8d7a-4de4-a8d4-f94340d5d977",
"title": "S250828a - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250828a/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250828a/view/"
},
"event": {
"far": 9.04465773714396e-06,
"time": "2025-08-28T00:00:01.266Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1322.726784852799,
"area_90": 5967.377817451398,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.015682288725766987,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "ca2baa7514d54ff0d058fdbe0f610788",
"classification": {
"BBH": 0.1297464758484566,
"BNS": 4.098938071657578e-15,
"NSBH": 3.1030443566401446e-13,
"Terrestrial": 0.870253524151229
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-28T00:00:27Z",
"superevent_id": "S250828a",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-28T00:00:28.084078Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-28T00:00:28.084097Z",
"modified": "2025-08-28T00:00:28.087887Z"
}
},
{
"id": 9966,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773205,
"topic": "igwn.gwalert",
"uuid": "d15febb4-5dfc-45c0-892a-a0e59e19eb19",
"title": "S250827fy - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250827fy/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250827fy/view/"
},
"event": {
"far": 2.26819234402732e-05,
"time": "2025-08-27T23:34:35.332Z",
"group": "CBC",
"search": "AllSky",
"area_50": 736.4801736727991,
"area_90": 3845.643482357567,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.012110860154338415,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "512fcc6828d6a4f3333a4b77824e0525",
"classification": {
"BBH": 0.04401947781845217,
"BNS": 3.7571568660584575e-15,
"NSBH": 7.092764530594664e-13,
"Terrestrial": 0.9559805221808348
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-27T23:39:34Z",
"superevent_id": "S250827fy",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-27T23:39:35.237214Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-27T23:39:35.237232Z",
"modified": "2025-08-27T23:39:35.243742Z"
}
},
{
"id": 9965,
"sequence_number": 3,
"sequence_type": "INITIAL",
"message": {
"id": 5773204,
"topic": "igwn.gwalert",
"uuid": "2e72deee-ce01-41f3-8cb3-ca1a7bb5df74",
"title": "S250827fo - INITIAL",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250827fo/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250827fo/view/"
},
"event": {
"far": 2.255182e-11,
"time": "2025-08-27T22:49:40.311Z",
"group": "CBC",
"search": "AllSky",
"area_50": 233.53345678000724,
"area_90": 966.8662792832642,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.057012473159024885,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": true,
"skymap_hash": "6607f733cb64cbf67fac36cbd7ef5ba0",
"classification": {
"BBH": 0.9999077555649349,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 9.224443506505861e-05
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "INITIAL",
"sequence_num": 3,
"time_created": "2025-08-27T23:36:50Z",
"superevent_id": "S250827fo",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-27T23:36:51.699298Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-27T23:36:51.699317Z",
"modified": "2025-08-27T23:36:51.702258Z"
}
},
{
"id": 9964,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773203,
"topic": "igwn.gwalert",
"uuid": "4f3c3e38-79e9-4add-b886-4dc72f76aa20",
"title": "S250827fy - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250827fy/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250827fy/view/"
},
"event": {
"far": 2.26819234402732e-05,
"time": "2025-08-27T23:34:35.332Z",
"group": "CBC",
"search": "AllSky",
"area_50": 736.4801736727991,
"area_90": 3845.643482357567,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.012110860154338415,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "512fcc6828d6a4f3333a4b77824e0525",
"classification": {
"BBH": 0.04401947781845217,
"BNS": 3.7571568660584575e-15,
"NSBH": 7.092764530594664e-13,
"Terrestrial": 0.9559805221808348
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-27T23:34:59Z",
"superevent_id": "S250827fy",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-27T23:35:00.344536Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-27T23:35:00.344553Z",
"modified": "2025-08-27T23:35:00.361406Z"
}
},
{
"id": 9963,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773200,
"topic": "igwn.gwalert",
"uuid": "34951c8d-81bf-47f0-a3d0-38fbbcd391db",
"title": "S250827fw - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250827fw/view/"
},
"event": {
"far": 1.9046524181557254e-05,
"time": "2025-08-27T23:21:45.923Z",
"group": "Burst",
"search": "AllSky",
"area_50": 7097.90635755084,
"area_90": 22574.481175244757,
"duration": 0.125,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "3b80c770a1129c5548caff032d5aaedc",
"classification": {},
"skymap_version": 0,
"central_frequency": 152.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-27T23:27:13Z",
"superevent_id": "S250827fw",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-27T23:27:14.995262Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-27T23:27:14.995280Z",
"modified": "2025-08-27T23:27:15.026277Z"
}
},
{
"id": 9962,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773199,
"topic": "igwn.gwalert",
"uuid": "d598fea7-94ab-40c0-912d-aca95c546a2e",
"title": "S250827fw - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250827fw/view/"
},
"event": {
"far": 1.9046524181557254e-05,
"time": "2025-08-27T23:21:45.923Z",
"group": "Burst",
"search": "AllSky",
"area_50": 7097.90635755084,
"area_90": 22574.481175244757,
"duration": 0.125,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "3b80c770a1129c5548caff032d5aaedc",
"classification": {},
"skymap_version": 0,
"central_frequency": 152.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-27T23:22:39Z",
"superevent_id": "S250827fw",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-27T23:22:40.256872Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-27T23:22:40.256890Z",
"modified": "2025-08-27T23:22:40.261207Z"
}
},
{
"id": 9961,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773194,
"topic": "igwn.gwalert",
"uuid": "32ab0743-dc59-40ba-802d-4a8288f7bf9b",
"title": "S250827fo - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250827fo/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250827fo/view/"
},
"event": {
"far": 2.255182e-11,
"time": "2025-08-27T22:49:40.311Z",
"group": "CBC",
"search": "AllSky",
"area_50": 233.53345678000724,
"area_90": 966.8662792832642,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.057012473159024885,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": true,
"skymap_hash": "6607f733cb64cbf67fac36cbd7ef5ba0",
"classification": {
"BBH": 0.9999077555649349,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 9.224443506505861e-05
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-27T22:54:48Z",
"superevent_id": "S250827fo",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-27T22:54:49.018288Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-27T22:54:49.018308Z",
"modified": "2025-08-27T22:54:49.027931Z"
}
},
{
"id": 9960,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773193,
"topic": "igwn.gwalert",
"uuid": "79c78089-75f1-4542-9c23-b7776ab73a7d",
"title": "S250827fo - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250827fo/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250827fo/view/"
},
"event": {
"far": 6.350938809465436e-14,
"time": "2025-08-27T22:49:40.317Z",
"group": "CBC",
"search": "AllSky",
"area_50": 227.2912102937492,
"area_90": 931.6159461843954,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.001176470588235294,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": true,
"skymap_hash": "aa703551326828d917f618a1ed46c1a3",
"classification": {
"BBH": 0.9999998107612553,
"BNS": 1.430489398572539e-27,
"NSBH": 3.403677134729183e-21,
"Terrestrial": 1.8923874467446922e-07
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-27T22:50:12Z",
"superevent_id": "S250827fo",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-27T22:50:13.271009Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-27T22:50:13.271026Z",
"modified": "2025-08-27T22:50:13.278741Z"
}
},
{
"id": 9959,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773184,
"topic": "igwn.gwalert",
"uuid": "6ee7e9ef-bf00-4482-a0d6-42ecb3d4ed45",
"title": "S250827fe - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250827fe/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250827fe/view/"
},
"event": {
"far": 2.13679e-05,
"time": "2025-08-27T21:48:08.250Z",
"group": "Burst",
"search": "AllSky",
"area_50": 901.4013749567932,
"area_90": 4530.507096849879,
"duration": 0.036263,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "7204b7a1706d83c9a7d2f16074cb0bf4",
"classification": {},
"skymap_version": 0,
"central_frequency": 365.394012
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-27T21:54:26Z",
"superevent_id": "S250827fe",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-27T21:54:27.969333Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-27T21:54:27.969353Z",
"modified": "2025-08-27T21:54:27.973041Z"
}
},
{
"id": 9958,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773183,
"topic": "igwn.gwalert",
"uuid": "4b1a7b10-a94e-4f24-9d1d-ee2fe56ee0ad",
"title": "S250827fe - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250827fe/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250827fe/view/"
},
"event": {
"far": 2.13679e-05,
"time": "2025-08-27T21:48:08.250Z",
"group": "Burst",
"search": "AllSky",
"area_50": 901.4013749567932,
"area_90": 4530.507096849879,
"duration": 0.036263,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "7204b7a1706d83c9a7d2f16074cb0bf4",
"classification": {},
"skymap_version": 0,
"central_frequency": 365.394012
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-27T21:49:52Z",
"superevent_id": "S250827fe",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-27T21:49:53.171311Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-27T21:49:53.171329Z",
"modified": "2025-08-27T21:49:53.175441Z"
}
},
{
"id": 9957,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773181,
"topic": "igwn.gwalert",
"uuid": "e7379920-ed32-44dd-a70c-c01a466d6bff",
"title": "S250827fd - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250827fd/view/"
},
"event": {
"far": 2.0319076618365874e-05,
"time": "2025-08-27T21:43:26.676Z",
"group": "Burst",
"search": "AllSky",
"area_50": 5725.661247630581,
"area_90": 21830.027711942454,
"duration": 0.375,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "ac5366d70e185c3918ec458e5db63757",
"classification": {},
"skymap_version": 0,
"central_frequency": 88.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-27T21:48:58Z",
"superevent_id": "S250827fd",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-27T21:48:58.992233Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-27T21:48:58.992251Z",
"modified": "2025-08-27T21:48:58.997634Z"
}
},
{
"id": 9956,
"sequence_number": 1,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773179,
"topic": "igwn.gwalert",
"uuid": "60183deb-1d5a-4726-b75d-190a867df161",
"title": "S250827fd - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250827fd/view/"
},
"event": {
"far": 2.0319076618365874e-05,
"time": "2025-08-27T21:43:26.676Z",
"group": "Burst",
"search": "AllSky",
"area_50": 5725.661247630581,
"area_90": 21830.027711942454,
"duration": 0.375,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "ac5366d70e185c3918ec458e5db63757",
"classification": {},
"skymap_version": 0,
"central_frequency": 88.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2025-08-27T21:44:23Z",
"superevent_id": "S250827fd",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-27T21:44:25.200193Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-27T21:44:25.200211Z",
"modified": "2025-08-27T21:44:25.203224Z"
}
}
]
}