HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept
{
"count": 11124,
"next": "https://hermes.lco.global/api/v0/nonlocalizedeventsequence/?format=api&limit=100&offset=7600&ordering=sequence_number",
"previous": "https://hermes.lco.global/api/v0/nonlocalizedeventsequence/?format=api&limit=100&offset=7400&ordering=sequence_number",
"results": [
{
"id": 1401,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2444,
"topic": "igwn.gwalert",
"uuid": "9168ffa1-8423-4991-89eb-6af5f2e0ba22",
"title": "S230825bf - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230825bf/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230825bf/view/"
},
"event": {
"far": 2.490965698598302e-06,
"time": "2023-08-25T13:34:13.290Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1053.73317156262,
"area_90": 3567.837285792671,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.7964168845377488,
"HasMassGap": 0.027008658008658017,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "dc94d13e5f130ec42467363d84d4e939",
"classification": {
"BBH": 0.07046255193935606,
"BNS": 0.0,
"NSBH": 0.11959215731378789,
"Terrestrial": 0.8099452907468561
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-25T13:39:13Z",
"superevent_id": "S230825bf",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-25T13:39:15.091082Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-25T13:39:15.091104Z",
"modified": "2023-08-25T13:39:15.094796Z"
}
},
{
"id": 1403,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2448,
"topic": "igwn.gwalert",
"uuid": "96f38097-ff7b-447c-83d5-78cd434fdaa6",
"title": "S230825bz - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230825bz/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230825bz/view/"
},
"event": {
"far": 5.913742825214285e-06,
"time": "2023-08-25T17:40:26.587Z",
"group": "CBC",
"search": "AllSky",
"area_50": 2161.181136418755,
"area_90": 6437.38225876965,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.295893000254531,
"HasMassGap": 0.10647366043917769,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "f5a73576cd16e07fde72d88fcad9a112",
"classification": {
"BBH": 0.17548731267731776,
"BNS": 0.0,
"NSBH": 0.07291811699507632,
"Terrestrial": 0.7515945703276059
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-25T17:45:24Z",
"superevent_id": "S230825bz",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-25T17:45:25.974995Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-25T17:45:25.975027Z",
"modified": "2023-08-25T17:45:25.978808Z"
}
},
{
"id": 6499,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 151288,
"topic": "igwn.gwalert",
"uuid": "7821f2ff-fca5-497b-92f6-0724f21f4266",
"title": "S241202ci - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241202ci/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241202ci/view/"
},
"event": {
"far": 1.4773e-05,
"time": "2024-12-02T08:19:41.117Z",
"group": "CBC",
"search": "BBH",
"area_50": 818.3113040808879,
"area_90": 2526.2738720856128,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "802444ecae94651681914d495a929910",
"classification": {
"BBH": 0.00170179166490958,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9982982083350904
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-02T08:26:35Z",
"superevent_id": "S241202ci",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-02T08:26:36.391930Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-02T08:26:36.391951Z",
"modified": "2024-12-02T08:26:36.399345Z"
}
},
{
"id": 6500,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 151291,
"topic": "igwn.gwalert",
"uuid": "0a179dc3-13ac-4f4b-bf0c-e1bf7574d5be",
"title": "S241202ck - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241202ck/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241202ck/view/"
},
"event": {
"far": 6.452e-06,
"time": "2024-12-02T08:23:16.582Z",
"group": "CBC",
"search": "BBH",
"area_50": 1809.5170990752756,
"area_90": 5745.804295115649,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "bb89c24f1518163c91c922f8ebeb2d16",
"classification": {
"BBH": 0.004695058673779062,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9953049413262209
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-02T08:29:20Z",
"superevent_id": "S241202ck",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-02T08:29:21.163540Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-02T08:29:21.163560Z",
"modified": "2024-12-02T08:29:21.169134Z"
}
},
{
"id": 6501,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 151292,
"topic": "igwn.gwalert",
"uuid": "53723718-5eef-442d-bc8d-499f81a90c00",
"title": "S241202cl - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241202cl/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241202cl/view/"
},
"event": {
"far": 1.18728e-05,
"time": "2024-12-02T08:24:00.882Z",
"group": "Burst",
"search": "AllSky",
"area_50": 465.8079730921977,
"area_90": 1564.4433546736154,
"duration": 0.010317,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "923091c93962ddd4cf81da2fffb70bda",
"classification": {},
"skymap_version": 0,
"central_frequency": 46.791389
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-02T08:30:35Z",
"superevent_id": "S241202cl",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-02T08:30:36.471595Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-02T08:30:36.471620Z",
"modified": "2024-12-02T08:30:36.482096Z"
}
},
{
"id": 1407,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2452,
"topic": "igwn.gwalert",
"uuid": "fed40d16-ff26-457f-b8b6-e5988993d81f",
"title": "S230825cb - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230825cb/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230825cb/view/"
},
"event": {
"far": 2.10302871104096e-05,
"time": "2023-08-25T18:05:40.311Z",
"group": "CBC",
"search": "AllSky",
"area_50": 377.00021425829107,
"area_90": 1363.8521734681462,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.1259039271081017,
"HasRemnant": 0.11679667996404519
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "b8558e2aed662a05cefb93af3d3c3279",
"classification": {
"BBH": 1.4255483772163347e-06,
"BNS": 2.0179462022601815e-05,
"NSBH": 0.0012421161259773294,
"Terrestrial": 0.9987362788636228
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-25T18:10:38Z",
"superevent_id": "S230825cb",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-25T18:10:40.224747Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-25T18:10:40.224787Z",
"modified": "2023-08-25T18:10:40.234735Z"
}
},
{
"id": 1408,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2454,
"topic": "igwn.gwalert",
"uuid": "fa358f05-7a09-4aa6-aed5-58f7b0f5e073",
"title": "S230825cc - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230825cc/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230825cc/view/"
},
"event": {
"far": 6.82809e-06,
"time": "2023-08-25T18:07:28.953Z",
"group": "Burst",
"search": "BBH",
"area_50": 1059.1885802564927,
"area_90": 3939.644370621217,
"duration": 0.016575,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "829705d26f5dc3cd8f1fc04f0d6b938e",
"classification": {},
"skymap_version": 0,
"central_frequency": 55.932793
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-25T18:13:07Z",
"superevent_id": "S230825cc",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-25T18:13:08.613304Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-25T18:13:08.613326Z",
"modified": "2023-08-25T18:13:08.617148Z"
}
},
{
"id": 1409,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2455,
"topic": "igwn.gwalert",
"uuid": "32b789d0-c7c1-4409-983b-f710ac2cf7f9",
"title": "S230825cd - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230825cd/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230825cd/view/"
},
"event": {
"far": 1.80901e-05,
"time": "2023-08-25T18:07:28.908Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1130.528540099442,
"area_90": 4588.418358369449,
"duration": 0.014356,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "9616fb03f4c1a89f596b4a63463dcabd",
"classification": {},
"skymap_version": 0,
"central_frequency": 55.467667
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-25T18:13:46Z",
"superevent_id": "S230825cd",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-25T18:13:47.729976Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-25T18:13:47.730007Z",
"modified": "2023-08-25T18:13:47.733686Z"
}
},
{
"id": 8898,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 297484,
"topic": "igwn.gwalert",
"uuid": "10bc8ef8-714f-4199-983f-0080773120d9",
"title": "S250626an - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250626an/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250626an/view/"
},
"event": {
"far": 5.716469981497477e-06,
"time": "2025-06-26T11:59:22.042Z",
"group": "CBC",
"search": "AllSky",
"area_50": 547.0096332663782,
"area_90": 2061.305192638626,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.3787724017056463,
"HasMassGap": 0.11664294987728921,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "9e9af4fe5af916b37e37e6eab7d8a2e4",
"classification": {
"BBH": 0.051874952801636356,
"BNS": 0.0,
"NSBH": 0.032288578803241014,
"Terrestrial": 0.9158364683951227
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-06-26T12:04:27Z",
"superevent_id": "S250626an",
"external_coinc": null
},
"message_text": "",
"published": "2025-06-26T12:04:29.014192Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-06-26T12:04:29.014211Z",
"modified": "2025-06-26T12:04:29.022803Z"
}
},
{
"id": 1411,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2458,
"topic": "igwn.gwalert",
"uuid": "12f08d78-addc-4ce5-9199-b5bd02699679",
"title": "S230825ce - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230825ce/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230825ce/view/"
},
"event": {
"far": 1.920501017593779e-05,
"time": "2023-08-25T18:25:13.651Z",
"group": "CBC",
"search": "AllSky",
"area_50": 2094.0376448018615,
"area_90": 7137.353158875765,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.28471585986648706,
"HasMassGap": 0.22899012820164955,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "0cbf005df31ba5b79d4c323a46680d03",
"classification": {
"BBH": 0.06504110902111694,
"BNS": 0.0,
"NSBH": 0.026722418291166547,
"Terrestrial": 0.9082364726877165
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-25T18:30:12Z",
"superevent_id": "S230825ce",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-25T18:30:14.036756Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-25T18:30:14.036778Z",
"modified": "2023-08-25T18:30:14.040508Z"
}
},
{
"id": 6503,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 151385,
"topic": "igwn.gwalert",
"uuid": "dee2bb32-7e70-4588-87a9-038d73b794e2",
"title": "S241202el - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241202el/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241202el/view/"
},
"event": {
"far": 1.194547e-05,
"time": "2024-12-02T16:16:28.661Z",
"group": "CBC",
"search": "AllSky",
"area_50": 5008.904474620244,
"area_90": 15936.507735269637,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.24076323338687675,
"HasMassGap": 0.8316469396387812,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"V1"
],
"significant": false,
"skymap_hash": "3c1047d909c0af48a24c93c31a8ecea2",
"classification": {
"BBH": 0.016767711,
"BNS": 0.0,
"NSBH": 0.000729031,
"Terrestrial": 0.982503258
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-02T16:21:40Z",
"superevent_id": "S241202el",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-02T16:21:41.297288Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-02T16:21:41.297312Z",
"modified": "2024-12-02T16:21:41.303564Z"
}
},
{
"id": 1413,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2464,
"topic": "igwn.gwalert",
"uuid": "ce70a689-5351-4418-9a43-0cb390c7984d",
"title": "S230825co - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230825co/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S230825co/view/"
},
"event": {
"far": 6.632299229757076e-06,
"time": "2023-08-25T22:21:09.298Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1154.8680558105657,
"area_90": 6613.633924263998,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.35927371264818847,
"HasRemnant": 0.9559734987995999
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "7d4d2ace5d11790bac33e13a4f924ced",
"classification": {
"BBH": 2.5034843793487387e-15,
"BNS": 3.5755019057323364e-16,
"NSBH": 0.0157513021128676,
"Terrestrial": 0.9842486978871295
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-25T22:26:08Z",
"superevent_id": "S230825co",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-25T22:26:09.280915Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-25T22:26:09.280937Z",
"modified": "2023-08-25T22:26:09.284717Z"
}
},
{
"id": 10909,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5786555,
"topic": "igwn.gwalert",
"uuid": "c0cc3161-0ab4-4fcd-ba30-efec1be1f9ad",
"title": "S251010bs - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S251010bs/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S251010bs/view/"
},
"event": {
"far": 3.699084e-06,
"time": "2025-10-10T20:41:19.766Z",
"group": "CBC",
"search": "AllSky",
"area_50": 554.3534526619759,
"area_90": 2104.948462189607,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.10184930138231217,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "0963d7466f17acf8a628f6dd99fdfa98",
"classification": {
"BBH": 0.2188578652216842,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.7811421347783158
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-10-10T20:46:37Z",
"superevent_id": "S251010bs",
"external_coinc": null
},
"message_text": "",
"published": "2025-10-10T20:46:38.025342Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-10-10T20:46:38.025362Z",
"modified": "2025-10-10T20:46:38.035940Z"
}
},
{
"id": 1415,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2468,
"topic": "igwn.gwalert",
"uuid": "c94ce62a-1eff-4f50-b875-49209c915c0a",
"title": "S230826l - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230826l/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230826l/view/"
},
"event": {
"far": 1.835592956922483e-05,
"time": "2023-08-26T03:10:26.167Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1091.7112090084254,
"area_90": 3582.1052777612604,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.9301647037854647,
"HasMassGap": 0.29848221620687754,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "4419ab9c07860ac2ec7244d79908d1cf",
"classification": {
"BBH": 0.005085942217228139,
"BNS": 0.0,
"NSBH": 0.051934721539350574,
"Terrestrial": 0.9429793362434213
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-26T03:15:28Z",
"superevent_id": "S230826l",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-26T03:15:29.942518Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-26T03:15:29.942555Z",
"modified": "2023-08-26T03:15:29.946836Z"
}
},
{
"id": 6505,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 151449,
"topic": "igwn.gwalert",
"uuid": "f2b95f20-c054-4e9b-a406-67c5f06e0361",
"title": "S241202es - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241202es/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241202es/view/"
},
"event": {
"far": 4.74079e-06,
"time": "2024-12-02T20:53:14.473Z",
"group": "CBC",
"search": "BBH",
"area_50": 2161.181136418755,
"area_90": 6802.474994436508,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "d7a9e53cc57c8d0cfd9e18ddc4d0e465",
"classification": {
"BBH": 0.005600609308919147,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9943993906910809
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-02T20:59:00Z",
"superevent_id": "S241202es",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-02T20:59:01.469396Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-02T20:59:01.469485Z",
"modified": "2024-12-02T20:59:01.478993Z"
}
},
{
"id": 1417,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2470,
"topic": "igwn.gwalert",
"uuid": "ad53dc16-dcdf-4b59-969f-52a09fc60b17",
"title": "S230826n - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230826n/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S230826n/view/"
},
"event": {
"far": 2.151229e-05,
"time": "2023-08-26T03:15:33.226Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1064.4341655390626,
"area_90": 3837.2505459054555,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.012106583072100312,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "e1d1f8177ea0097432c1dfda70107e28",
"classification": {
"BBH": 0.024046466,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.975953534
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-26T03:20:30Z",
"superevent_id": "S230826n",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-26T03:20:31.862712Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-26T03:20:31.862750Z",
"modified": "2023-08-26T03:20:31.867304Z"
}
},
{
"id": 8900,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 302064,
"topic": "igwn.gwalert",
"uuid": "51d1b900-687d-44b7-87bb-b366fae151bc",
"title": "S250627i - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250627i/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250627i/view/"
},
"event": {
"far": 1.563410159678569e-05,
"time": "2025-06-27T05:27:25.694Z",
"group": "CBC",
"search": "AllSky",
"area_50": 408.52618180653553,
"area_90": 1474.848758047323,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "b452e7dbc9b3c26e61ef8267c869da9c",
"classification": {
"BBH": 0.07035323037662293,
"BNS": 7.37676496431943e-16,
"NSBH": 4.8444609445153006e-14,
"Terrestrial": 0.9296467696233279
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-06-27T05:32:24Z",
"superevent_id": "S250627i",
"external_coinc": null
},
"message_text": "",
"published": "2025-06-27T05:32:24.852379Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-06-27T05:32:24.852397Z",
"modified": "2025-06-27T05:32:24.855625Z"
}
},
{
"id": 1419,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2474,
"topic": "igwn.gwalert",
"uuid": "380992d5-766a-4f6a-a2d7-90d0f9dd50d1",
"title": "S230826y - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230826y/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230826y/view/"
},
"event": {
"far": 3.91223586975538e-06,
"time": "2023-08-26T05:08:34.121Z",
"group": "CBC",
"search": "AllSky",
"area_50": 623.595178391897,
"area_90": 2581.6672526695493,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "2ac63d089a8aff929635941d02a41c8c",
"classification": {
"BBH": 0.0,
"BNS": 0.000371313903764675,
"NSBH": 0.005922400477555016,
"Terrestrial": 0.9937062856186804
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-26T05:13:36Z",
"superevent_id": "S230826y",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-26T05:13:37.736829Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-26T05:13:37.736850Z",
"modified": "2023-08-26T05:13:37.740449Z"
}
},
{
"id": 6507,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 151477,
"topic": "igwn.gwalert",
"uuid": "6655f503-042e-4fa8-8a58-2e01bb167fe6",
"title": "S241202fk - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241202fk/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S241202fk/view/"
},
"event": {
"far": 2.959939685223019e-06,
"time": "2024-12-02T23:30:02.805Z",
"group": "CBC",
"search": "AllSky",
"area_50": 931.19629936179,
"area_90": 3953.912362589808,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.04264138160689884,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "b654405381e7bf78447561ea2cec18be",
"classification": {
"BBH": 0.35143593267585205,
"BNS": 1.6905299068777367e-16,
"NSBH": 1.3130364457741012e-14,
"Terrestrial": 0.6485640673241346
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-02T23:35:16Z",
"superevent_id": "S241202fk",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-02T23:35:18.220683Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-02T23:35:18.220724Z",
"modified": "2024-12-02T23:35:18.231167Z"
}
},
{
"id": 1421,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2478,
"topic": "igwn.gwalert",
"uuid": "f02cd21f-4c5e-4ed2-9433-36edd2410d13",
"title": "S230826ac - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230826ac/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230826ac/view/"
},
"event": {
"far": 4.003683443443151e-06,
"time": "2023-08-26T11:57:26.057Z",
"group": "CBC",
"search": "AllSky",
"area_50": 561.2776252349679,
"area_90": 2338.272095558311,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.602287199829669,
"HasRemnant": 0.11104177117343177
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "55e0a3283fc19bd0553038e80005008c",
"classification": {
"BBH": 0.0,
"BNS": 0.12575144655627707,
"NSBH": 0.0389534930584236,
"Terrestrial": 0.8352950603852993
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-26T12:02:24Z",
"superevent_id": "S230826ac",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-26T12:02:26.295441Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-26T12:02:26.295462Z",
"modified": "2023-08-26T12:02:26.299135Z"
}
},
{
"id": 10086,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773902,
"topic": "igwn.gwalert",
"uuid": "071aeb5a-4e2e-4ecb-b4c6-fb6cec70379a",
"title": "S250830bw - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250830bw/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250830bw/view/"
},
"event": {
"far": 9.327811033725919e-06,
"time": "2025-08-30T11:01:49.958Z",
"group": "CBC",
"search": "AllSky",
"area_50": 915.879190336686,
"area_90": 3388.2284457174815,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "71c91c6603b7f5eb920d47978d8d46e4",
"classification": {
"BBH": 0.14967053985704445,
"BNS": 1.8567052320849796e-14,
"NSBH": 1.3009443543652292e-12,
"Terrestrial": 0.850329460141636
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-30T11:07:20Z",
"superevent_id": "S250830bw",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-30T11:07:21.784606Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-30T11:07:21.784623Z",
"modified": "2025-08-30T11:07:21.793981Z"
}
},
{
"id": 1423,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2480,
"topic": "igwn.gwalert",
"uuid": "8011f3ca-827a-479a-8510-e17f4b41b60b",
"title": "S230826al - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230826al/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230826al/view/"
},
"event": {
"far": 1.961118186954991e-06,
"time": "2023-08-26T13:39:00.312Z",
"group": "CBC",
"search": "AllSky",
"area_50": 421.06313063187736,
"area_90": 1451.768182804016,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.45594227994228,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "199eae599126370bd4a04f0fb3629b26",
"classification": {
"BBH": 0.0,
"BNS": 0.42976584894525627,
"NSBH": 0.0,
"Terrestrial": 0.5702341510547437
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-26T13:44:03Z",
"superevent_id": "S230826al",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-26T13:44:04.310104Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-26T13:44:04.310127Z",
"modified": "2023-08-26T13:44:04.313585Z"
}
},
{
"id": 6509,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 151487,
"topic": "igwn.gwalert",
"uuid": "4857f7d5-b83d-4018-a29e-ecd16268d28a",
"title": "S241203b - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241203b/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S241203b/view/"
},
"event": {
"far": 1.140716074556621e-05,
"time": "2024-12-03T00:17:43.895Z",
"group": "CBC",
"search": "AllSky",
"area_50": 544.0721055081391,
"area_90": 1986.608058214832,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "c831c8271c662e88369de90631826209",
"classification": {
"BBH": 1.5805933107663316e-05,
"BNS": 3.348292242000795e-06,
"NSBH": 0.002043245078046803,
"Terrestrial": 0.9979376006966035
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-03T00:22:47Z",
"superevent_id": "S241203b",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-03T00:22:47.583030Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-03T00:22:47.583073Z",
"modified": "2024-12-03T00:22:47.589908Z"
}
},
{
"id": 1425,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2482,
"topic": "igwn.gwalert",
"uuid": "694044ce-b6a9-4a26-ba0a-bd25dfe3cf4d",
"title": "S230826ar - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230826ar/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230826ar/view/"
},
"event": {
"far": 1.65214e-05,
"time": "2023-08-26T15:27:05.138Z",
"group": "Burst",
"search": "AllSky",
"area_50": 392.7894259588262,
"area_90": 1458.6923553770082,
"duration": 0.025115,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "526d201dba671d99d2ddd73bd81de5c3",
"classification": {},
"skymap_version": 0,
"central_frequency": 487.666138
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-26T15:35:36Z",
"superevent_id": "S230826ar",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-26T15:35:37.180948Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-26T15:35:37.180972Z",
"modified": "2023-08-26T15:35:37.184647Z"
}
},
{
"id": 8902,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 302313,
"topic": "igwn.gwalert",
"uuid": "b44ef14f-e1fb-4334-a72f-f57e964147d8",
"title": "S250627o - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250627o/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250627o/view/"
},
"event": {
"far": 1.96920518646948e-05,
"time": "2025-06-27T06:24:49.366Z",
"group": "CBC",
"search": "AllSky",
"area_50": 131.66419059250182,
"area_90": 969.8038070415033,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.0,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "fee2d47bfbcc7894a6bfed1a75e8f725",
"classification": {
"BBH": 0.0,
"BNS": 0.0007115077722660879,
"NSBH": 8.405230205659802e-05,
"Terrestrial": 0.9992044399256773
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-06-27T06:29:49Z",
"superevent_id": "S250627o",
"external_coinc": null
},
"message_text": "",
"published": "2025-06-27T06:29:50.478223Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-06-27T06:29:50.478240Z",
"modified": "2025-06-27T06:29:50.489007Z"
}
},
{
"id": 1427,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2484,
"topic": "igwn.gwalert",
"uuid": "b5662e5c-58fa-41c1-bff4-b79a5ffd3af1",
"title": "S230826ba - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230826ba/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230826ba/view/"
},
"event": {
"far": 1.952582897501998e-05,
"time": "2023-08-26T17:28:09.918Z",
"group": "CBC",
"search": "AllSky",
"area_50": 6495.29352028922,
"area_90": 24164.94263291992,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.06873321123321124,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "d04233cfb336d5bc7bdd8c0600125c54",
"classification": {
"BBH": 0.0,
"BNS": 0.20720489255420213,
"NSBH": 0.0026589490650346485,
"Terrestrial": 0.7901361583807632
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-26T17:33:11Z",
"superevent_id": "S230826ba",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-26T17:33:12.153663Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-26T17:33:12.153685Z",
"modified": "2023-08-26T17:33:12.157816Z"
}
},
{
"id": 6511,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 151496,
"topic": "igwn.gwalert",
"uuid": "e35ee775-b383-45be-ac41-2103fa1099a9",
"title": "S241203f - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241203f/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S241203f/view/"
},
"event": {
"far": 1.154044728511831e-05,
"time": "2024-12-03T00:42:12.949Z",
"group": "CBC",
"search": "AllSky",
"area_50": 147.50585814586262,
"area_90": 732.4935288580459,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "98b44c7a5603b9ddaa79e30934e28cd6",
"classification": {
"BBH": 0.10296281480666986,
"BNS": 5.480273320334512e-24,
"NSBH": 4.64029300761528e-22,
"Terrestrial": 0.8970371851933301
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-03T00:47:16Z",
"superevent_id": "S241203f",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-03T00:47:17.965369Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-03T00:47:17.965412Z",
"modified": "2024-12-03T00:47:17.975121Z"
}
},
{
"id": 1429,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2486,
"topic": "igwn.gwalert",
"uuid": "a3c5128e-0994-4080-a079-3881379e853c",
"title": "S230826be - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230826be/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230826be/view/"
},
"event": {
"far": 1.333568475043084e-05,
"time": "2023-08-26T18:09:42.847Z",
"group": "CBC",
"search": "AllSky",
"area_50": 421.27295404318016,
"area_90": 1694.5338696813462,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 0.4885466493215413,
"HasMassGap": 0.5878356317336854,
"HasRemnant": 7.553197493557942e-05
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "c18345df8d4aa542843ee444f384f73b",
"classification": {
"BBH": 0.0008213098473156729,
"BNS": 0.0,
"NSBH": 0.002186014912680372,
"Terrestrial": 0.9969926752400039
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-26T18:14:53Z",
"superevent_id": "S230826be",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-26T18:14:54.718869Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-26T18:14:54.718891Z",
"modified": "2023-08-26T18:14:54.722521Z"
}
},
{
"id": 10643,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5782804,
"topic": "igwn.gwalert",
"uuid": "58973e50-88ee-4aa0-8bef-4da9cf7f7998",
"title": "S250928fb - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250928fb/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250928fb/view/"
},
"event": {
"far": 8.027194673414366e-06,
"time": "2025-09-28T20:02:44.851Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1256.2127634698143,
"area_90": 3949.7158943637514,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "5e61819b06fa68463bf4ed1b79bedc29",
"classification": {
"BBH": 5.7972369440820126e-05,
"BNS": 3.444228489244698e-06,
"NSBH": 0.003764832693416719,
"Terrestrial": 0.9961737507086532
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-09-28T20:07:45Z",
"superevent_id": "S250928fb",
"external_coinc": null
},
"message_text": "",
"published": "2025-09-28T20:07:46.482009Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-09-28T20:07:46.482035Z",
"modified": "2025-09-28T20:07:46.502310Z"
}
},
{
"id": 1431,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2488,
"topic": "igwn.gwalert",
"uuid": "6d52a3aa-d1ff-4e42-b10a-cc702b4ff5f5",
"title": "S230826bf - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230826bf/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230826bf/view/"
},
"event": {
"far": 6.34286e-06,
"time": "2023-08-26T18:28:06.996Z",
"group": "Burst",
"search": "BBH",
"area_50": 1780.9811151380966,
"area_90": 5467.998098550754,
"duration": 0.015486,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "c6e20671b2ac52a089ae75c6c0db8365",
"classification": {},
"skymap_version": 0,
"central_frequency": 63.123833
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-26T18:36:27Z",
"superevent_id": "S230826bf",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-26T18:36:29.024350Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-26T18:36:29.024371Z",
"modified": "2023-08-26T18:36:29.029048Z"
}
},
{
"id": 6513,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 151514,
"topic": "igwn.gwalert",
"uuid": "a7d6d093-6ff9-4385-b73c-b2055d579f05",
"title": "S241203t - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241203t/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241203t/view/"
},
"event": {
"far": 2.17809e-06,
"time": "2024-12-03T01:20:28.055Z",
"group": "CBC",
"search": "BBH",
"area_50": 666.3991542976667,
"area_90": 2158.6632554831212,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.03369230769230769,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "e6f90af9ebf9fe093c1ce01d95abb74b",
"classification": {
"BBH": 0.021821261052044072,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9781787389479559
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-03T01:26:27Z",
"superevent_id": "S241203t",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-03T01:26:28.282297Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-03T01:26:28.282320Z",
"modified": "2024-12-03T01:26:28.287687Z"
}
},
{
"id": 1433,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2492,
"topic": "igwn.gwalert",
"uuid": "3d6e1805-9b89-4912-a43e-2034bcc9e029",
"title": "S230826bi - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230826bi/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230826bi/view/"
},
"event": {
"far": 1.6683e-05,
"time": "2023-08-26T19:50:11.809Z",
"group": "Burst",
"search": "BBH",
"area_50": 903.0799622472157,
"area_90": 3237.994883224683,
"duration": 0.005159,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "3ed1d1232d0c8a4612412b255836d254",
"classification": {},
"skymap_version": 0,
"central_frequency": 237.395584
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-26T19:55:58Z",
"superevent_id": "S230826bi",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-26T19:55:59.448668Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-26T19:55:59.448691Z",
"modified": "2023-08-26T19:55:59.452498Z"
}
},
{
"id": 8904,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 305785,
"topic": "igwn.gwalert",
"uuid": "2681bfce-89a5-4cce-be61-ba4d42288736",
"title": "S250627y - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250627y/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250627y/view/"
},
"event": {
"far": 4.365474808309955e-07,
"time": "2025-06-27T19:47:10.589Z",
"group": "CBC",
"search": "AllSky",
"area_50": 2241.5435029477244,
"area_90": 10759.74453160716,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.2959437157031003,
"HasMassGap": 0.006666666666666666,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "26544bea83e8eb708874d8f41b072527",
"classification": {
"BBH": 0.4306015061899346,
"BNS": 0.0,
"NSBH": 0.015849658993431447,
"Terrestrial": 0.553548834816634
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-06-27T19:52:12Z",
"superevent_id": "S250627y",
"external_coinc": null
},
"message_text": "",
"published": "2025-06-27T19:52:13.365596Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-06-27T19:52:13.365614Z",
"modified": "2025-06-27T19:52:13.368836Z"
}
},
{
"id": 1435,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2497,
"topic": "igwn.gwalert",
"uuid": "571241fd-b3ad-48a7-9a08-0b5ccee8fe39",
"title": "S230827o - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230827o/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230827o/view/"
},
"event": {
"far": 2.04523e-05,
"time": "2023-08-27T04:21:45.867Z",
"group": "Burst",
"search": "BBH",
"area_50": 1675.2301158414894,
"area_90": 5250.62104444106,
"duration": 0.009655,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "2e385be25a76dc8169f55585c5d820d4",
"classification": {},
"skymap_version": 0,
"central_frequency": 78.37117
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-27T04:27:23Z",
"superevent_id": "S230827o",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-27T04:27:24.838648Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-27T04:27:24.838670Z",
"modified": "2023-08-27T04:27:24.842188Z"
}
},
{
"id": 6515,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 151529,
"topic": "igwn.gwalert",
"uuid": "f46eefc2-6e18-41ba-9b83-abd93495d4d3",
"title": "S241203z - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241203z/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241203z/view/"
},
"event": {
"far": 2.30112e-05,
"time": "2024-12-03T01:34:02.885Z",
"group": "Burst",
"search": "AllSky",
"area_50": 383.5571958615034,
"area_90": 1446.9422443440517,
"duration": 0.015259,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "91b5421a95ac4641949ce18d71da2f3b",
"classification": {},
"skymap_version": 0,
"central_frequency": 616.065247
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-03T01:40:33Z",
"superevent_id": "S241203z",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-03T01:40:34.739643Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-03T01:40:34.739704Z",
"modified": "2024-12-03T01:40:34.745277Z"
}
},
{
"id": 1437,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2499,
"topic": "igwn.gwalert",
"uuid": "431ba316-8702-4e07-a9f4-a85f0b9be432",
"title": "S230827s - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230827s/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230827s/view/"
},
"event": {
"far": 1.538001883701502e-05,
"time": "2023-08-27T06:50:55.636Z",
"group": "CBC",
"search": "AllSky",
"area_50": 328.2687269832177,
"area_90": 1398.263212921804,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.45594227994228,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "12e448bfda4bc937239728184f669abf",
"classification": {
"BBH": 0.0,
"BNS": 0.0027479805912518523,
"NSBH": 0.0,
"Terrestrial": 0.9972520194087482
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-27T06:56:08Z",
"superevent_id": "S230827s",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-27T06:56:09.343250Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-27T06:56:09.343270Z",
"modified": "2023-08-27T06:56:09.347038Z"
}
},
{
"id": 10088,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773912,
"topic": "igwn.gwalert",
"uuid": "357f4396-53fd-477f-ad49-a54697afc9a8",
"title": "S250830cb - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250830cb/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250830cb/view/"
},
"event": {
"far": 1.83986e-05,
"time": "2025-08-30T11:18:57.234Z",
"group": "CBC",
"search": "BBH",
"area_50": 190.51965746293493,
"area_90": 665.5598606524554,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "3784ec0ae03c9398a27f2eed772f87f9",
"classification": {
"BBH": 0.0012859470013230068,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.998714052998677
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-30T11:24:47Z",
"superevent_id": "S250830cb",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-30T11:24:48.223872Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-30T11:24:48.223889Z",
"modified": "2025-08-30T11:24:48.235647Z"
}
},
{
"id": 6517,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 151570,
"topic": "igwn.gwalert",
"uuid": "12b606cd-a714-43ac-bbbc-552ae9b2c140",
"title": "S241203as - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241203as/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241203as/view/"
},
"event": {
"far": 6.01131e-06,
"time": "2024-12-03T03:16:58.200Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1355.4592370160349,
"area_90": 5605.642256365384,
"duration": 0.099314,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "aafa7b71a35ea967c7c68f15d2c80075",
"classification": {},
"skymap_version": 0,
"central_frequency": 1051.615356
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-03T03:24:03Z",
"superevent_id": "S241203as",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-03T03:24:03.807987Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-03T03:24:03.808010Z",
"modified": "2024-12-03T03:24:03.812887Z"
}
},
{
"id": 8906,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 305884,
"topic": "igwn.gwalert",
"uuid": "44519fd8-7157-45fd-baca-f37fea900564",
"title": "S250627ab - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250627ab/view/"
},
"event": {
"far": 1.581397501414255e-05,
"time": "2025-06-27T20:09:06.167Z",
"group": "Burst",
"search": "AllSky",
"area_50": 7272.479435754763,
"area_90": 22733.10767418967,
"duration": 0.09375,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "aa452d19ad014e70fa38357da3c31c40",
"classification": {},
"skymap_version": 0,
"central_frequency": 320.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-06-27T20:14:30Z",
"superevent_id": "S250627ab",
"external_coinc": null
},
"message_text": "",
"published": "2025-06-27T20:14:31.718197Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-06-27T20:14:31.718216Z",
"modified": "2025-06-27T20:14:31.721190Z"
}
},
{
"id": 1441,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2503,
"topic": "igwn.gwalert",
"uuid": "d66f7f2e-c1cf-408b-92a7-147f02b6791b",
"title": "S230827u - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230827u/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230827u/view/"
},
"event": {
"far": 1.464217935794117e-05,
"time": "2023-08-27T07:12:54.194Z",
"group": "CBC",
"search": "AllSky",
"area_50": 699.1316064609022,
"area_90": 2527.9524593760348,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "baf2e1acdd86f1837eb4b6ab64c0633a",
"classification": {
"BBH": 0.10239554926314454,
"BNS": 2.728422363119179e-15,
"NSBH": 1.774906654581856e-13,
"Terrestrial": 0.8976044507366753
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-27T07:18:09Z",
"superevent_id": "S230827u",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-27T07:18:10.542768Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-27T07:18:10.542789Z",
"modified": "2023-08-27T07:18:10.546561Z"
}
},
{
"id": 1442,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2504,
"topic": "igwn.gwalert",
"uuid": "fc5f0a32-2453-41de-a5ca-ad1fd1005c0b",
"title": "S230827v - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230827v/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230827v/view/"
},
"event": {
"far": 1.9708e-05,
"time": "2023-08-27T07:14:26.363Z",
"group": "Burst",
"search": "BBH",
"area_50": 1037.3669454810024,
"area_90": 3589.6589205681607,
"duration": 0.007414,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "62f6b74e76f46f1c06d82c6a7855c862",
"classification": {},
"skymap_version": 0,
"central_frequency": 122.744171
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-27T07:20:18Z",
"superevent_id": "S230827v",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-27T07:20:19.807262Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-27T07:20:19.807284Z",
"modified": "2023-08-27T07:20:19.810932Z"
}
},
{
"id": 1443,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2505,
"topic": "igwn.gwalert",
"uuid": "1209b260-18bd-4dc6-b1d0-29171633cd1d",
"title": "S230827w - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230827w/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230827w/view/"
},
"event": {
"far": 1.20749e-05,
"time": "2023-08-27T07:15:01.498Z",
"group": "Burst",
"search": "AllSky",
"area_50": 447.34351289755205,
"area_90": 1690.3374014552905,
"duration": 0.022401,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "a1eec73cbfb75e88ab7cf64397d3954d",
"classification": {},
"skymap_version": 0,
"central_frequency": 690.246338
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-27T07:20:49Z",
"superevent_id": "S230827w",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-27T07:20:50.067216Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-27T07:20:50.067235Z",
"modified": "2023-08-27T07:20:50.070664Z"
}
},
{
"id": 6519,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 151586,
"topic": "igwn.gwalert",
"uuid": "6a0df930-3884-433e-a256-06898bef37b8",
"title": "S241203bi - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241203bi/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241203bi/view/"
},
"event": {
"far": 5.59529e-06,
"time": "2024-12-03T04:25:40.285Z",
"group": "CBC",
"search": "BBH",
"area_50": 1392.3881574053262,
"area_90": 5009.743768265456,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "20525194539232eaf534d3e8379f5cb2",
"classification": {
"BBH": 0.0067692310526591415,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9932307689473409
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-03T04:31:26Z",
"superevent_id": "S241203bi",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-03T04:31:27.585543Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-03T04:31:27.585568Z",
"modified": "2024-12-03T04:31:27.594105Z"
}
},
{
"id": 1445,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2508,
"topic": "igwn.gwalert",
"uuid": "19cea0f0-dc6e-4da8-8dca-8b0c2ed1b361",
"title": "S230827x - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230827x/files/olib.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230827x/view/"
},
"event": {
"far": 1.4389096453842347e-06,
"time": "2023-08-27T07:20:28.981Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1155.707349455777,
"area_90": 5614.035192817495,
"duration": 0.11419552855704572,
"pipeline": "oLIB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "108b149033e487b9ee8c2648e50e3307",
"classification": {},
"skymap_version": 0,
"central_frequency": 98.21129315760321
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-27T07:35:29Z",
"superevent_id": "S230827x",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-27T07:35:30.473655Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-27T07:35:30.473677Z",
"modified": "2023-08-27T07:35:30.477333Z"
}
},
{
"id": 10644,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5782805,
"topic": "igwn.gwalert",
"uuid": "98a65273-c9f7-4a2c-a5b2-88406f223ead",
"title": "S250928fc - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250928fc/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250928fc/view/"
},
"event": {
"far": 1.885068e-05,
"time": "2025-09-28T20:02:54.429Z",
"group": "CBC",
"search": "AllSky",
"area_50": 483.9052423170634,
"area_90": 3621.552079086186,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.8803376167500099,
"HasRemnant": 0.0007647351447329682
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "e03922f87fd67971ae39bdf154f7d1f0",
"classification": {
"BBH": 0.0,
"BNS": 0.00017474656417036216,
"NSBH": 0.000636518821950168,
"Terrestrial": 0.9991887346138795
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-09-28T20:08:25Z",
"superevent_id": "S250928fc",
"external_coinc": null
},
"message_text": "",
"published": "2025-09-28T20:08:26.674604Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-09-28T20:08:26.674631Z",
"modified": "2025-09-28T20:08:26.684130Z"
}
},
{
"id": 1447,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2511,
"topic": "igwn.gwalert",
"uuid": "c958a900-3bb6-4c47-949a-b77877d6314b",
"title": "S230827z - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230827z/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230827z/view/"
},
"event": {
"far": 1.23466e-05,
"time": "2023-08-27T07:38:43.375Z",
"group": "Burst",
"search": "BBH",
"area_50": 2108.305636770451,
"area_90": 6495.293520289222,
"duration": 0.008613,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "721759bcd070be4e80508eb32b9c5091",
"classification": {},
"skymap_version": 0,
"central_frequency": 62.50658
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-27T07:45:41Z",
"superevent_id": "S230827z",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-27T07:45:41.944980Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-27T07:45:41.945048Z",
"modified": "2023-08-27T07:45:41.950176Z"
}
},
{
"id": 6521,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 151619,
"topic": "igwn.gwalert",
"uuid": "dadf66ad-bcbf-4793-a4d7-047beff254fd",
"title": "S241203by - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241203by/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241203by/view/"
},
"event": {
"far": 4.5992e-06,
"time": "2024-12-03T05:50:31.199Z",
"group": "CBC",
"search": "BBH",
"area_50": 3092.7970826031506,
"area_90": 10633.011191180274,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.04264138160689884,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "4c074ddcd0ad6fb23d344ab8dbb12abe",
"classification": {
"BBH": 0.005253643234329752,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9947463567656702
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-03T05:57:29Z",
"superevent_id": "S241203by",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-03T05:57:29.476814Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-03T05:57:29.476837Z",
"modified": "2024-12-03T05:57:29.481574Z"
}
},
{
"id": 10090,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773920,
"topic": "igwn.gwalert",
"uuid": "ed6cb670-6dee-4639-9dda-9a55d01f958f",
"title": "S250830cf - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250830cf/view/"
},
"event": {
"far": 9.714662422511254e-06,
"time": "2025-08-30T11:59:04.367Z",
"group": "Burst",
"search": "AllSky",
"area_50": 6514.597274129079,
"area_90": 21974.386218918775,
"duration": 0.28125,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "b05a6e0aec1d4aebe28b7b628a33e320",
"classification": {},
"skymap_version": 0,
"central_frequency": 352.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-30T12:04:20Z",
"superevent_id": "S250830cf",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-30T12:04:21.948634Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-30T12:04:21.948658Z",
"modified": "2025-08-30T12:04:21.957223Z"
}
},
{
"id": 1450,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2514,
"topic": "igwn.gwalert",
"uuid": "b0131c65-37db-43d4-b729-3577aee49098",
"title": "S230827at - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230827at/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230827at/view/"
},
"event": {
"far": 1.99868e-06,
"time": "2023-08-27T10:13:56.700Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1377.7005186141307,
"area_90": 4518.966809228225,
"duration": 0.035827,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "ae3cc81cfcef37fb95e8635abcaa2dc7",
"classification": {},
"skymap_version": 0,
"central_frequency": 41.605469
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-27T10:20:30Z",
"superevent_id": "S230827at",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-27T10:20:30.984651Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-27T10:20:30.984674Z",
"modified": "2023-08-27T10:20:30.988433Z"
}
},
{
"id": 1451,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2515,
"topic": "igwn.gwalert",
"uuid": "9ebe8572-00ea-4a07-b7c4-d5d3b81a2ff4",
"title": "S230827au - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230827au/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230827au/view/"
},
"event": {
"far": 2.824434886861127e-06,
"time": "2023-08-27T10:17:05.870Z",
"group": "CBC",
"search": "AllSky",
"area_50": 3113.7794237334297,
"area_90": 9601.519301215752,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.3945332349418513,
"HasMassGap": 0.043133333333333336,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "1717f03222ba01189b3f908511567b82",
"classification": {
"BBH": 0.2811285996868675,
"BNS": 0.0,
"NSBH": 0.19551229523410513,
"Terrestrial": 0.5233591050790274
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-27T10:22:07Z",
"superevent_id": "S230827au",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-27T10:22:08.361326Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-27T10:22:08.361348Z",
"modified": "2023-08-27T10:22:08.364898Z"
}
},
{
"id": 6523,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 151643,
"topic": "igwn.gwalert",
"uuid": "714dde68-0a4d-46f8-a992-23b547b383bc",
"title": "S241203cg - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241203cg/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241203cg/view/"
},
"event": {
"far": 1.351666e-05,
"time": "2024-12-03T06:34:55.673Z",
"group": "CBC",
"search": "AllSky",
"area_50": 282.3173999079063,
"area_90": 1452.8172998605298,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.3263591640676086,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "e79e10c515f0aa5d43d7eed73d64fa7a",
"classification": {
"BBH": 0.000151457,
"BNS": 3.7864e-05,
"NSBH": 0.000719422,
"Terrestrial": 0.999091257
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-03T06:40:40Z",
"superevent_id": "S241203cg",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-03T06:40:40.870261Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-03T06:40:40.870289Z",
"modified": "2024-12-03T06:40:40.875357Z"
}
},
{
"id": 1453,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2519,
"topic": "igwn.gwalert",
"uuid": "cd030e2b-1f54-48a9-9f7d-f11686577e2c",
"title": "S230827az - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230827az/files/olib.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230827az/view/"
},
"event": {
"far": 1.9394702829679353e-06,
"time": "2023-08-27T12:34:19.432Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1051.4251140382896,
"area_90": 5247.263869860215,
"duration": 0.009518270413281035,
"pipeline": "oLIB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "41713da3ada4237b4cf2b9a9f3429801",
"classification": {},
"skymap_version": 0,
"central_frequency": 132.95498962824828
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-27T12:46:41Z",
"superevent_id": "S230827az",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-27T12:46:42.744331Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-27T12:46:42.744352Z",
"modified": "2023-08-27T12:46:42.748001Z"
}
},
{
"id": 8909,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 305910,
"topic": "igwn.gwalert",
"uuid": "32041dff-f659-489f-930a-77b51ba1b88c",
"title": "S250627ad - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250627ad/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250627ad/view/"
},
"event": {
"far": 1.079372921203015e-05,
"time": "2025-06-27T20:14:45.467Z",
"group": "CBC",
"search": "AllSky",
"area_50": 203.8958999334879,
"area_90": 1028.1347153836793,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.2504171289790391,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "d04d62c8309e37b34368407bed98c8b4",
"classification": {
"BBH": 0.0,
"BNS": 0.00013528309068828613,
"NSBH": 0.0012304412199500194,
"Terrestrial": 0.9986342756893617
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-06-27T20:19:43Z",
"superevent_id": "S250627ad",
"external_coinc": null
},
"message_text": "",
"published": "2025-06-27T20:19:44.783440Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-06-27T20:19:44.783458Z",
"modified": "2025-06-27T20:19:44.786706Z"
}
},
{
"id": 1455,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2521,
"topic": "igwn.gwalert",
"uuid": "90d80269-5905-423b-b361-12966b1c3b30",
"title": "S230827bc - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230827bc/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230827bc/view/"
},
"event": {
"far": 1.898988452734967e-05,
"time": "2023-08-27T13:08:39.847Z",
"group": "CBC",
"search": "AllSky",
"area_50": 475.87949683473175,
"area_90": 2034.4477959918686,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.08928513153513153,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "a11b274a5cbbeb372676033e6bfb243d",
"classification": {
"BBH": 0.0731051112333569,
"BNS": 2.6517718140770416e-16,
"NSBH": 1.6162427658876147e-14,
"Terrestrial": 0.9268948887666266
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-27T13:13:39Z",
"superevent_id": "S230827bc",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-27T13:13:41.012594Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-27T13:13:41.012616Z",
"modified": "2023-08-27T13:13:41.016285Z"
}
},
{
"id": 6525,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 151687,
"topic": "igwn.gwalert",
"uuid": "51a71d7d-c158-452b-b00a-cdb5e3e7c886",
"title": "S241203cs - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241203cs/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241203cs/view/"
},
"event": {
"far": 1.81786e-05,
"time": "2024-12-03T08:22:16.187Z",
"group": "Burst",
"search": "AllSky",
"area_50": 197.23400662462427,
"area_90": 731.0247649789264,
"duration": 0.00822,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "dae0c2ff65d95f2ff4cdc441f9d65c76",
"classification": {},
"skymap_version": 0,
"central_frequency": 1160.622192
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-03T08:28:02Z",
"superevent_id": "S241203cs",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-03T08:28:02.680615Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-03T08:28:02.680653Z",
"modified": "2024-12-03T08:28:02.688829Z"
}
},
{
"id": 1457,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2524,
"topic": "igwn.gwalert",
"uuid": "7e9d561b-b7e9-408d-9b90-4f286db167ce",
"title": "S230827bf - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230827bf/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230827bf/view/"
},
"event": {
"far": 6.079069289728888e-06,
"time": "2023-08-27T14:38:29.011Z",
"group": "CBC",
"search": "AllSky",
"area_50": 564.215152993207,
"area_90": 2159.5025491283322,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004875813841331083,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "f6f676783886180979f5fc87934fac3e",
"classification": {
"BBH": 0.25841774409820434,
"BNS": 2.3063916905656094e-18,
"NSBH": 1.5731683433991513e-16,
"Terrestrial": 0.7415822559017955
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-27T14:43:32Z",
"superevent_id": "S230827bf",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-27T14:43:33.853809Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-27T14:43:33.853833Z",
"modified": "2023-08-27T14:43:33.857553Z"
}
},
{
"id": 8910,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 305913,
"topic": "igwn.gwalert",
"uuid": "5b414b77-276a-4b2b-89eb-0f1dc100b4f3",
"title": "S250627ae - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250627ae/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250627ae/view/"
},
"event": {
"far": 5.8447e-06,
"time": "2025-06-27T20:14:44.223Z",
"group": "CBC",
"search": "BBH",
"area_50": 338.2353390201003,
"area_90": 1082.6888023224053,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "6b7f75954af34291ba8a72b24d482851",
"classification": {
"BBH": 0.0056605042622790425,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.994339495737721
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-06-27T20:20:26Z",
"superevent_id": "S250627ae",
"external_coinc": null
},
"message_text": "",
"published": "2025-06-27T20:20:26.917206Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-06-27T20:20:26.917232Z",
"modified": "2025-06-27T20:20:26.920902Z"
}
},
{
"id": 1459,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2527,
"topic": "igwn.gwalert",
"uuid": "caec5987-0ec5-4d54-b2cc-0f45ce86af0b",
"title": "S230827bh - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230827bh/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230827bh/view/"
},
"event": {
"far": 1.034159049595473e-05,
"time": "2023-08-27T16:55:07.950Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1685.0918161727207,
"area_90": 5825.53719141071,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.6884464309878767,
"HasMassGap": 0.03163901557379818,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "809251810452b4ea1926b15600f07c68",
"classification": {
"BBH": 0.06683082692852495,
"BNS": 0.0,
"NSBH": 0.02074268572041863,
"Terrestrial": 0.9124264873510564
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-27T17:00:08Z",
"superevent_id": "S230827bh",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-27T17:00:09.967158Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-27T17:00:09.967179Z",
"modified": "2023-08-27T17:00:09.970823Z"
}
},
{
"id": 6527,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 151702,
"topic": "igwn.gwalert",
"uuid": "12d617d1-10b6-4921-87e4-39abed331966",
"title": "S241203dc - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241203dc/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241203dc/view/"
},
"event": {
"far": 1.65475e-05,
"time": "2024-12-03T09:12:27.829Z",
"group": "Burst",
"search": "AllSky",
"area_50": 923.2230097322836,
"area_90": 5222.08506050388,
"duration": 0.075958,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "5694675c9db4e5f7e824d455d8f3e97c",
"classification": {},
"skymap_version": 0,
"central_frequency": 1085.923096
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-03T09:19:03Z",
"superevent_id": "S241203dc",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-03T09:19:04.980454Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-03T09:19:04.980494Z",
"modified": "2024-12-03T09:19:04.986758Z"
}
},
{
"id": 1461,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2529,
"topic": "igwn.gwalert",
"uuid": "fdc4f1ae-6314-41ba-8112-3947fac06203",
"title": "S230827bj - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230827bj/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230827bj/view/"
},
"event": {
"far": 4.399854333314579e-06,
"time": "2023-08-27T17:11:18.134Z",
"group": "CBC",
"search": "AllSky",
"area_50": 2218.253104293114,
"area_90": 10907.460213164326,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.7125990463072739,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "282809edb29edabef666a89f38cf5fb3",
"classification": {
"BBH": 0.10985867323014126,
"BNS": 0.0,
"NSBH": 0.3922259794497414,
"Terrestrial": 0.49791534732011733
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-27T17:16:18Z",
"superevent_id": "S230827bj",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-27T17:16:19.031801Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-27T17:16:19.031825Z",
"modified": "2023-08-27T17:16:19.035304Z"
}
},
{
"id": 1463,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2531,
"topic": "igwn.gwalert",
"uuid": "b3e50cf5-1e13-4275-b62c-2ad69bb006a6",
"title": "S230827bl - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230827bl/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230827bl/view/"
},
"event": {
"far": 1.662031354499049e-05,
"time": "2023-08-27T17:24:01.872Z",
"group": "CBC",
"search": "AllSky",
"area_50": 391.05838281557817,
"area_90": 7415.998649085871,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.39673593073593066,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "a662717f29131a13928afa51a89b406d",
"classification": {
"BBH": 0.0,
"BNS": 0.13424584038535464,
"NSBH": 0.009144675589963801,
"Terrestrial": 0.8566094840246816
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-27T17:29:02Z",
"superevent_id": "S230827bl",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-27T17:29:03.865627Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-27T17:29:03.865649Z",
"modified": "2023-08-27T17:29:03.869357Z"
}
},
{
"id": 6529,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 151821,
"topic": "igwn.gwalert",
"uuid": "6013e4aa-c71b-4c8e-91b1-c8f4077ba9f7",
"title": "S241203ee - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241203ee/files/cwb.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S241203ee/view/"
},
"event": {
"far": 1.47211e-05,
"time": "2024-12-03T13:19:32.504Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1635.7833145165646,
"area_90": 6485.221996546688,
"duration": 0.034104,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "c2a63d26101f6c67acbef793b973df27",
"classification": {},
"skymap_version": 1,
"central_frequency": 1623.968994
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-03T13:25:30Z",
"superevent_id": "S241203ee",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-03T13:25:30.813668Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-03T13:25:30.813705Z",
"modified": "2024-12-03T13:25:30.820986Z"
}
},
{
"id": 1465,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2534,
"topic": "igwn.gwalert",
"uuid": "ae7b3c77-c639-4115-bddc-88c8ba674d9f",
"title": "S230827bo - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230827bo/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230827bo/view/"
},
"event": {
"far": 1.48392e-05,
"time": "2023-08-27T17:55:18.102Z",
"group": "Burst",
"search": "BBH",
"area_50": 2946.7599883364073,
"area_90": 8808.386806491197,
"duration": 0.011778,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "55c5be40f1b6d485131d2de6f4dddf95",
"classification": {},
"skymap_version": 0,
"central_frequency": 49.467274
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-27T18:02:12Z",
"superevent_id": "S230827bo",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-27T18:02:14.033227Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-27T18:02:14.033249Z",
"modified": "2023-08-27T18:02:14.036845Z"
}
},
{
"id": 8912,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 307410,
"topic": "igwn.gwalert",
"uuid": "f84b7379-f3ed-4b87-bc06-1aba3649c6fe",
"title": "S250628b - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250628b/view/"
},
"event": {
"far": 1.3749323964919517e-05,
"time": "2025-06-28T02:00:29.125Z",
"group": "Burst",
"search": "AllSky",
"area_50": 7160.014087296465,
"area_90": 22545.105897662368,
"duration": 0.0625,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "2931f33a5600b5804f81bab58375e585",
"classification": {},
"skymap_version": 0,
"central_frequency": 448.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-06-28T02:05:59Z",
"superevent_id": "S250628b",
"external_coinc": null
},
"message_text": "",
"published": "2025-06-28T02:06:00.348722Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-06-28T02:06:00.348743Z",
"modified": "2025-06-28T02:06:00.352341Z"
}
},
{
"id": 1467,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2543,
"topic": "igwn.gwalert",
"uuid": "c183656d-10ef-4cb6-b364-19e6403e5bda",
"title": "S230827cc - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230827cc/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230827cc/view/"
},
"event": {
"far": 1.50568e-05,
"time": "2023-08-27T21:38:29.121Z",
"group": "Burst",
"search": "BBH",
"area_50": 1518.282204187001,
"area_90": 5637.5354148834085,
"duration": 0.005817,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "7fa8ee434434396384e86f80a22a68c6",
"classification": {},
"skymap_version": 0,
"central_frequency": 130.926773
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-27T21:44:07Z",
"superevent_id": "S230827cc",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-27T21:44:07.674785Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-27T21:44:07.674805Z",
"modified": "2023-08-27T21:44:07.679776Z"
}
},
{
"id": 6531,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 151843,
"topic": "igwn.gwalert",
"uuid": "fc341c32-ff08-4852-881a-1ccfcb7533d4",
"title": "S241203ep - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241203ep/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241203ep/view/"
},
"event": {
"far": 2.14965e-05,
"time": "2024-12-03T14:42:06.406Z",
"group": "CBC",
"search": "BBH",
"area_50": 1449.4601252796854,
"area_90": 4804.95611883393,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "cfbd742f7eb8a56e93bb5c7c295a7ee8",
"classification": {
"BBH": 0.0008883668584509508,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.999111633141549
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-03T14:48:08Z",
"superevent_id": "S241203ep",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-03T14:48:08.909456Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-03T14:48:08.909489Z",
"modified": "2024-12-03T14:48:08.918471Z"
}
},
{
"id": 1469,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2545,
"topic": "igwn.gwalert",
"uuid": "d996fcbb-7f7e-4271-af09-3b80c0368e71",
"title": "S230828b - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230828b/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230828b/view/"
},
"event": {
"far": 1.44641651332706e-05,
"time": "2023-08-28T00:21:34.805Z",
"group": "CBC",
"search": "AllSky",
"area_50": 659.0553349020688,
"area_90": 2216.574517002692,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "65d7a46e1c593726eb1d35e9f1f61082",
"classification": {
"BBH": 0.10685481716678899,
"BNS": 3.9303525119811685e-16,
"NSBH": 2.6037761036640946e-14,
"Terrestrial": 0.8931451828331846
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-28T00:26:50Z",
"superevent_id": "S230828b",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-28T00:26:51.515706Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-28T00:26:51.515743Z",
"modified": "2023-08-28T00:26:51.519958Z"
}
},
{
"id": 1471,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2547,
"topic": "igwn.gwalert",
"uuid": "407cf9ad-4ac1-4200-bc74-29fae0fe86ed",
"title": "S230828d - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230828d/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230828d/view/"
},
"event": {
"far": 4.441875724781587e-06,
"time": "2023-08-28T01:02:38.014Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1089.193328072792,
"area_90": 5632.499653012142,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.026260429225946468,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "8aa4f7c50fd7b04169da47701cde30f4",
"classification": {
"BBH": 0.32387270133293083,
"BNS": 2.9279748041666843e-13,
"NSBH": 2.216530203716251e-11,
"Terrestrial": 0.676127298644611
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-28T01:07:37Z",
"superevent_id": "S230828d",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-28T01:07:37.904205Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-28T01:07:37.904229Z",
"modified": "2023-08-28T01:07:37.907985Z"
}
},
{
"id": 6533,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 151996,
"topic": "igwn.gwalert",
"uuid": "231d6a50-2a2f-4d54-9991-844a5ddcd529",
"title": "S241204ab - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241204ab/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241204ab/view/"
},
"event": {
"far": 1.08346e-05,
"time": "2024-12-04T04:22:57.613Z",
"group": "CBC",
"search": "BBH",
"area_50": 1025.616834448046,
"area_90": 3679.463340605756,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "939560816e52edfcb2c0684cc64ea008",
"classification": {
"BBH": 0.003324657433639744,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9966753425663603
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-04T04:28:37Z",
"superevent_id": "S241204ab",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-04T04:28:37.709692Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-04T04:28:37.709735Z",
"modified": "2024-12-04T04:28:37.718090Z"
}
},
{
"id": 8914,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 307529,
"topic": "igwn.gwalert",
"uuid": "243301a0-4b30-4a52-92c9-3981de8b55a7",
"title": "S250628f - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250628f/view/"
},
"event": {
"far": 2.9545144055824087e-06,
"time": "2025-06-28T02:27:57.360Z",
"group": "Burst",
"search": "AllSky",
"area_50": 7640.929346002465,
"area_90": 22667.642769863196,
"duration": 0.1875,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "2af34e7bf4b4f4aff160d18ab41bb8c0",
"classification": {},
"skymap_version": 0,
"central_frequency": 104.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-06-28T02:33:20Z",
"superevent_id": "S250628f",
"external_coinc": null
},
"message_text": "",
"published": "2025-06-28T02:33:22.236160Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-06-28T02:33:22.236178Z",
"modified": "2025-06-28T02:33:22.240584Z"
}
},
{
"id": 1474,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2550,
"topic": "igwn.gwalert",
"uuid": "36461509-f3fb-428e-a475-c64955485a86",
"title": "S230828n - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230828n/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S230828n/view/"
},
"event": {
"far": 7.142420220490516e-06,
"time": "2023-08-28T06:33:55.942Z",
"group": "CBC",
"search": "AllSky",
"area_50": 544.2819289194418,
"area_90": 2077.2517718976383,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.08365417915417915,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "4090b664e2cab81f5c14fc00ad079230",
"classification": {
"BBH": 0.2284883844749348,
"BNS": 3.4937195625921566e-16,
"NSBH": 2.2025591577270242e-14,
"Terrestrial": 0.7715116155250428
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-28T06:38:58Z",
"superevent_id": "S230828n",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-28T06:38:59.528372Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-28T06:38:59.528392Z",
"modified": "2023-08-28T06:38:59.531738Z"
}
},
{
"id": 1475,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2551,
"topic": "igwn.gwalert",
"uuid": "5827d0a3-2fe6-470c-8e8d-292ac05566d8",
"title": "S230828o - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230828o/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230828o/view/"
},
"event": {
"far": 1.09883e-05,
"time": "2023-08-28T06:35:07.660Z",
"group": "Burst",
"search": "BBH",
"area_50": 812.4362485644098,
"area_90": 2509.487999181389,
"duration": 0.004753,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "a0005f32effea0d673363c8dae23fa42",
"classification": {},
"skymap_version": 0,
"central_frequency": 169.203461
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-28T06:40:54Z",
"superevent_id": "S230828o",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-28T06:40:55.764207Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-28T06:40:55.764227Z",
"modified": "2023-08-28T06:40:55.767964Z"
}
},
{
"id": 6535,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 152013,
"topic": "igwn.gwalert",
"uuid": "68a09123-1807-4e95-b6f1-ffe62b67ea6b",
"title": "S241204au - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241204au/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241204au/view/"
},
"event": {
"far": 2.12629e-05,
"time": "2024-12-04T05:36:46.320Z",
"group": "CBC",
"search": "BBH",
"area_50": 1416.7276731164498,
"area_90": 5870.019754606902,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "7db6ec49a14bdd1873d4a3c807eb61c4",
"classification": {
"BBH": 0.0016126255374409038,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9983873744625591
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-04T05:44:55Z",
"superevent_id": "S241204au",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-04T05:44:56.272780Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-04T05:44:56.272808Z",
"modified": "2024-12-04T05:44:56.281560Z"
}
},
{
"id": 1477,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2555,
"topic": "igwn.gwalert",
"uuid": "f3684bb1-958e-4ece-b81c-412be0fc6af3",
"title": "S230828ah - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230828ah/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230828ah/view/"
},
"event": {
"far": 3.368460966157727e-06,
"time": "2023-08-28T11:35:27.287Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1372.6647567428638,
"area_90": 5690.4109145317125,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.7433182562544636,
"HasMassGap": 0.024916747524506143,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "ab5422905121529d54928bbfc5c97722",
"classification": {
"BBH": 0.048273817416677973,
"BNS": 0.0,
"NSBH": 0.17727461131489347,
"Terrestrial": 0.7744515712684286
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-28T11:40:26Z",
"superevent_id": "S230828ah",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-28T11:40:28.850721Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-28T11:40:28.850742Z",
"modified": "2023-08-28T11:40:28.854504Z"
}
},
{
"id": 10093,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773956,
"topic": "igwn.gwalert",
"uuid": "466d431d-58bf-49cc-b8b4-53e9a8177451",
"title": "S250830co - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250830co/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250830co/view/"
},
"event": {
"far": 4.021281e-06,
"time": "2025-08-30T13:15:13.331Z",
"group": "CBC",
"search": "AllSky",
"area_50": 633.666702134431,
"area_90": 2248.2578521094133,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.0,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "6effd344d1f99473526c3040f529c8cf",
"classification": {
"BBH": 0.0,
"BNS": 0.0034741228535993826,
"NSBH": 0.0,
"Terrestrial": 0.9965258771464006
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-30T13:20:22Z",
"superevent_id": "S250830co",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-30T13:20:23.155633Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-30T13:20:23.155649Z",
"modified": "2025-08-30T13:20:23.163232Z"
}
},
{
"id": 1479,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2558,
"topic": "igwn.gwalert",
"uuid": "b9bf4c99-98d9-4e4b-b6ff-09063e2edba1",
"title": "S230828ap - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230828ap/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230828ap/view/"
},
"event": {
"far": 3.86266e-06,
"time": "2023-08-28T16:00:49.115Z",
"group": "Burst",
"search": "AllSky",
"area_50": 1393.647097873143,
"area_90": 5905.479911117073,
"duration": 0.005492,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "8563c11ff4ec7c5c29e0d9473599da9b",
"classification": {},
"skymap_version": 0,
"central_frequency": 705.316528
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-28T16:09:48Z",
"superevent_id": "S230828ap",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-28T16:09:50.104740Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-28T16:09:50.104762Z",
"modified": "2023-08-28T16:09:50.108998Z"
}
},
{
"id": 6537,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 152015,
"topic": "igwn.gwalert",
"uuid": "49ea6001-eaa4-4191-bca6-fa08f2170853",
"title": "S241204av - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241204av/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S241204av/view/"
},
"event": {
"far": 1.426029138178182e-06,
"time": "2024-12-04T05:48:06.736Z",
"group": "CBC",
"search": "AllSky",
"area_50": 231.1729434028508,
"area_90": 983.8619755987903,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.0,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1",
"V1"
],
"significant": false,
"skymap_hash": "5fde1f388f1430b7a08a1de00521dd61",
"classification": {
"BBH": 0.0,
"BNS": 0.030537306358243366,
"NSBH": 0.0,
"Terrestrial": 0.9694626936417566
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-04T05:53:19Z",
"superevent_id": "S241204av",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-04T05:53:20.249201Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-04T05:53:20.249247Z",
"modified": "2024-12-04T05:53:20.278981Z"
}
},
{
"id": 1481,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2560,
"topic": "igwn.gwalert",
"uuid": "5208f123-9522-4455-aa98-11e23b02f757",
"title": "S230828aq - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230828aq/files/olib.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230828aq/view/"
},
"event": {
"far": 5.218704057787995e-07,
"time": "2023-08-28T16:07:06.598Z",
"group": "Burst",
"search": "AllSky",
"area_50": 518.6834727405012,
"area_90": 6425.002677502784,
"duration": 0.012532496867431128,
"pipeline": "oLIB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "827765dc79898359347d2f596241ef0e",
"classification": {},
"skymap_version": 0,
"central_frequency": 808.8102831157871
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-28T16:31:20Z",
"superevent_id": "S230828aq",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-28T16:31:21.580126Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-28T16:31:21.580148Z",
"modified": "2023-08-28T16:31:21.583867Z"
}
},
{
"id": 8916,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 307733,
"topic": "igwn.gwalert",
"uuid": "f19577fc-888e-4903-87e2-ee798c0ec964",
"title": "S250628m - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250628m/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S250628m/view/"
},
"event": {
"far": 6.968265056825623e-06,
"time": "2025-06-28T03:15:06.830Z",
"group": "CBC",
"search": "AllSky",
"area_50": 2242.5926200042377,
"area_90": 13415.269625055294,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.005275362318840579,
"HasRemnant": 0.0
},
"instruments": [
"L1",
"V1"
],
"significant": false,
"skymap_hash": "6b735c1c4746c7b7981f763ae471b2a6",
"classification": {
"BBH": 0.17405943338637409,
"BNS": 1.0117123575588516e-15,
"NSBH": 6.855897468288115e-14,
"Terrestrial": 0.8259405666135564
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-06-28T03:20:04Z",
"superevent_id": "S250628m",
"external_coinc": null
},
"message_text": "",
"published": "2025-06-28T03:20:05.732054Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-06-28T03:20:05.732073Z",
"modified": "2025-06-28T03:20:05.735595Z"
}
},
{
"id": 1483,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2566,
"topic": "igwn.gwalert",
"uuid": "32ada2fe-3d65-49ca-9ca0-1607889e0034",
"title": "S230829d - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230829d/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230829d/view/"
},
"event": {
"far": 1.31405e-05,
"time": "2023-08-29T02:54:28.602Z",
"group": "Burst",
"search": "BBH",
"area_50": 2924.0990599157058,
"area_90": 9056.817725473702,
"duration": 0.020947,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "239eeb5da8d43adb17915ea07f392c2e",
"classification": {},
"skymap_version": 0,
"central_frequency": 45.296082
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-29T03:00:57Z",
"superevent_id": "S230829d",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-29T03:00:57.605940Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-29T03:00:57.605962Z",
"modified": "2023-08-29T03:00:57.609627Z"
}
},
{
"id": 6539,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 152077,
"topic": "igwn.gwalert",
"uuid": "94755630-1d45-4fab-8bd0-dffcd18e39c8",
"title": "S241204cv - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241204cv/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241204cv/view/"
},
"event": {
"far": 7.36459e-06,
"time": "2024-12-04T10:55:29.270Z",
"group": "CBC",
"search": "BBH",
"area_50": 837.6150579207447,
"area_90": 2929.974115432184,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.07598751248751248,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "043d26d10f0c00c858b72051c05adaa1",
"classification": {
"BBH": 0.004115466061578643,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9958845339384214
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-04T11:01:07Z",
"superevent_id": "S241204cv",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-04T11:01:08.013954Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-04T11:01:08.013999Z",
"modified": "2024-12-04T11:01:08.044808Z"
}
},
{
"id": 1485,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2569,
"topic": "igwn.gwalert",
"uuid": "9f2565db-7a81-4f05-8357-5b2b97efbb06",
"title": "S230829af - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230829af/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230829af/view/"
},
"event": {
"far": 1.42794e-06,
"time": "2023-08-29T09:45:59.655Z",
"group": "Burst",
"search": "AllSky",
"area_50": 319.77087882545464,
"area_90": 1305.1016183033646,
"duration": 0.009927,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "6c818cff0aab19f2517ceb004d0b5689",
"classification": {},
"skymap_version": 0,
"central_frequency": 124.933815
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-29T09:51:55Z",
"superevent_id": "S230829af",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-29T09:51:55.799591Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-29T09:51:55.799709Z",
"modified": "2023-08-29T09:51:55.805139Z"
}
},
{
"id": 1487,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2571,
"topic": "igwn.gwalert",
"uuid": "7fe8e938-728c-43bc-9d21-68c58604c1e2",
"title": "S230829ah - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230829ah/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230829ah/view/"
},
"event": {
"far": 1.31454e-05,
"time": "2023-08-29T10:18:20.993Z",
"group": "Burst",
"search": "AllSky",
"area_50": 980.294977606643,
"area_90": 4026.0916160779666,
"duration": 0.028704,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "1bccce51d3717bedb6553e6324b7bff3",
"classification": {},
"skymap_version": 0,
"central_frequency": 59.79137
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-29T10:23:57Z",
"superevent_id": "S230829ah",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-29T10:23:58.264424Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-29T10:23:58.264446Z",
"modified": "2023-08-29T10:23:58.268133Z"
}
},
{
"id": 6541,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 152100,
"topic": "igwn.gwalert",
"uuid": "8df16b0d-67d6-4dd7-b1cb-c0db3e7486d5",
"title": "S241204dd - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241204dd/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241204dd/view/"
},
"event": {
"far": 1.586673e-05,
"time": "2024-12-04T12:04:46.259Z",
"group": "CBC",
"search": "AllSky",
"area_50": 325.85575775323554,
"area_90": 1406.0266791400072,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.9201070900164751,
"HasMassGap": 0.15462096386822555,
"HasRemnant": 0.758830386937216
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "346b19e6837e9abe782cc64211796fb0",
"classification": {
"BBH": 0.008750088,
"BNS": 0.0,
"NSBH": 0.004806386,
"Terrestrial": 0.986443526
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-04T12:09:53Z",
"superevent_id": "S241204dd",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-04T12:09:55.084600Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-04T12:09:55.084644Z",
"modified": "2024-12-04T12:09:55.091658Z"
}
},
{
"id": 8918,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 311104,
"topic": "igwn.gwalert",
"uuid": "9baeee39-4ba9-40ec-9730-85274d705aa4",
"title": "S250628aa - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250628aa/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250628aa/view/"
},
"event": {
"far": 2.04638e-05,
"time": "2025-06-28T16:08:15.279Z",
"group": "Burst",
"search": "AllSky",
"area_50": 534.6300519995133,
"area_90": 2088.162589285383,
"duration": 0.027072,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "26a5ce98d9fd5d47ff0c942e691b1dbf",
"classification": {},
"skymap_version": 0,
"central_frequency": 1834.898804
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-06-28T16:16:38Z",
"superevent_id": "S250628aa",
"external_coinc": null
},
"message_text": "",
"published": "2025-06-28T16:16:39.397983Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-06-28T16:16:39.398000Z",
"modified": "2025-06-28T16:16:39.402966Z"
}
},
{
"id": 1492,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2585,
"topic": "igwn.gwalert",
"uuid": "22ff26dc-7f81-4157-bede-6d564ba4752d",
"title": "S230830b - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230830b/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230830b/view/"
},
"event": {
"far": 1.148194733735508e-10,
"time": "2023-08-30T04:21:58.462Z",
"group": "CBC",
"search": "AllSky",
"area_50": 265.68889456216,
"area_90": 941.0579996930211,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.0,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": true,
"skymap_hash": "3b6300cd53e9279a996a9fccca02b200",
"classification": {
"BBH": 0.20461522308506114,
"BNS": 0.0,
"NSBH": 0.7950532912293123,
"Terrestrial": 0.00033148568562657577
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-30T04:27:06Z",
"superevent_id": "S230830b",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-30T04:27:07.543016Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-30T04:27:07.543034Z",
"modified": "2023-08-30T04:27:07.546835Z"
}
},
{
"id": 1493,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2586,
"topic": "igwn.gwalert",
"uuid": "63b87a9c-80cf-44d7-8a8d-6a1249acc3ed",
"title": "S230830c - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230830c/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230830c/view/"
},
"event": {
"far": 2.235402644146234e-05,
"time": "2023-08-30T04:22:06.104Z",
"group": "CBC",
"search": "AllSky",
"area_50": 269.25589255430754,
"area_90": 1646.6941319043094,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.07039066810287006,
"HasRemnant": 1.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "d4baa1f951eab2677567d23751805f43",
"classification": {
"BBH": 0.0,
"BNS": 0.031214723519200474,
"NSBH": 0.008504350263502412,
"Terrestrial": 0.9602809262172971
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-30T04:27:29Z",
"superevent_id": "S230830c",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-30T04:27:30.620787Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-30T04:27:30.620805Z",
"modified": "2023-08-30T04:27:30.624478Z"
}
},
{
"id": 6543,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 152105,
"topic": "igwn.gwalert",
"uuid": "5290f48e-6eb8-4df6-b459-f8eee6874f2a",
"title": "S241204di - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241204di/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241204di/view/"
},
"event": {
"far": 2.271959e-05,
"time": "2024-12-04T12:27:40.404Z",
"group": "CBC",
"search": "AllSky",
"area_50": 906.6469602393631,
"area_90": 2640.627631245634,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.12003285035025653,
"HasRemnant": 0.12640800736327748
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "3d5f9b3aad670275a60a5248e2b4930d",
"classification": {
"BBH": 0.00014412,
"BNS": 0.0,
"NSBH": 0.000417949,
"Terrestrial": 0.999437931
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-04T12:32:46Z",
"superevent_id": "S241204di",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-04T12:32:47.591935Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-04T12:32:47.591962Z",
"modified": "2024-12-04T12:32:47.598151Z"
}
},
{
"id": 1495,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2588,
"topic": "igwn.gwalert",
"uuid": "05e1cb6b-b139-4318-81c9-f12d495230de",
"title": "S230830d - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230830d/files/bayestar.multiorder.fits,1",
"gracedb": "https://gracedb.ligo.org/superevents/S230830d/view/"
},
"event": {
"far": 5.764149e-06,
"time": "2023-08-30T04:32:38.576Z",
"group": "CBC",
"search": "AllSky",
"area_50": 933.5043568861205,
"area_90": 3488.943683142821,
"duration": null,
"pipeline": "MBTA",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.04264138160689884,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "fd263929d3f6dc3b18b96cdf12f4e754",
"classification": {
"BBH": 0.080639511,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.919360489
},
"skymap_version": 1,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-30T04:37:47Z",
"superevent_id": "S230830d",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-30T04:37:49.020912Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-30T04:37:49.020931Z",
"modified": "2023-08-30T04:37:49.024494Z"
}
},
{
"id": 10095,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5773961,
"topic": "igwn.gwalert",
"uuid": "c4191faa-c122-463a-bacd-fc7401cce852",
"title": "S250830cv - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S250830cv/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S250830cv/view/"
},
"event": {
"far": 2.38603e-06,
"time": "2025-08-30T13:43:32.074Z",
"group": "CBC",
"search": "BBH",
"area_50": 4078.9671157262705,
"area_90": 12187.383022111357,
"duration": null,
"pipeline": "CWB",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.015682288725766987,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "91fe5eae5d55ffcf02611e515634af9d",
"classification": {
"BBH": 0.010111459063116723,
"BNS": 0.0,
"NSBH": 0.0,
"Terrestrial": 0.9898885409368833
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-08-30T13:49:19Z",
"superevent_id": "S250830cv",
"external_coinc": null
},
"message_text": "",
"published": "2025-08-30T13:49:20.186370Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-08-30T13:49:20.186385Z",
"modified": "2025-08-30T13:49:20.190368Z"
}
},
{
"id": 1497,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2590,
"topic": "igwn.gwalert",
"uuid": "1422830e-8a51-474a-b554-c7ab9554a589",
"title": "S230830g - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230830g/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230830g/view/"
},
"event": {
"far": 3.351181931066094e-06,
"time": "2023-08-30T04:49:16.149Z",
"group": "CBC",
"search": "AllSky",
"area_50": 512.1789469901147,
"area_90": 2625.31052222053,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.17815892664715563,
"HasMassGap": 0.4052997754952426,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "5ff4e90754a328f6ac6a23c657cf9b87",
"classification": {
"BBH": 0.0807161451058764,
"BNS": 0.0,
"NSBH": 0.12196683898260649,
"Terrestrial": 0.7973170159115172
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-30T04:54:21Z",
"superevent_id": "S230830g",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-30T04:54:23.286103Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-30T04:54:23.286121Z",
"modified": "2023-08-30T04:54:23.289429Z"
}
},
{
"id": 6545,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 152130,
"topic": "igwn.gwalert",
"uuid": "cd1e8663-9cbc-45a2-bfb8-cd4e29f74d75",
"title": "S241204do - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S241204do/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S241204do/view/"
},
"event": {
"far": 1.11204e-06,
"time": "2024-12-04T13:32:35.399Z",
"group": "Burst",
"search": "AllSky",
"area_50": 810.7576612739873,
"area_90": 3306.816962131998,
"duration": 0.045367,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "00938103267413da693c64b660595946",
"classification": {},
"skymap_version": 0,
"central_frequency": 107.850456
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-04T13:39:19Z",
"superevent_id": "S241204do",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-04T13:39:20.005720Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-04T13:39:20.005746Z",
"modified": "2024-12-04T13:39:20.020648Z"
}
},
{
"id": 1499,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2593,
"topic": "igwn.gwalert",
"uuid": "48ea864c-07f5-46ae-8421-458f71f80574",
"title": "S230830k - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230830k/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230830k/view/"
},
"event": {
"far": 2.30786e-05,
"time": "2023-08-30T05:19:11.458Z",
"group": "Burst",
"search": "AllSky",
"area_50": 689.6895529522766,
"area_90": 4756.906557645591,
"duration": 0.077067,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "728c0d2c425cd44d94f839d46f7249a9",
"classification": {},
"skymap_version": 0,
"central_frequency": 1659.535278
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-30T05:25:35Z",
"superevent_id": "S230830k",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-30T05:25:36.850935Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-30T05:25:36.850967Z",
"modified": "2023-08-30T05:25:36.854968Z"
}
},
{
"id": 8920,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 311601,
"topic": "igwn.gwalert",
"uuid": "7e26f239-fbb9-4b39-9780-273df0eaff9e",
"title": "S250628al - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S250628al/view/"
},
"event": {
"far": 1.9458678585077668e-05,
"time": "2025-06-28T18:06:10.094Z",
"group": "Burst",
"search": "AllSky",
"area_50": 7218.764642461248,
"area_90": 22666.803476217985,
"duration": 0.0625,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "ebb2d786ff608f75661899e6554a7762",
"classification": {},
"skymap_version": 0,
"central_frequency": 256.0
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-06-28T18:11:35Z",
"superevent_id": "S250628al",
"external_coinc": null
},
"message_text": "",
"published": "2025-06-28T18:11:35.878724Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-06-28T18:11:35.878742Z",
"modified": "2025-06-28T18:11:35.882094Z"
}
},
{
"id": 1503,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2598,
"topic": "igwn.gwalert",
"uuid": "5c0ad7eb-2f06-49a1-92f6-83335c44d586",
"title": "S230830n - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230830n/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230830n/view/"
},
"event": {
"far": 2.092841507927958e-05,
"time": "2023-08-30T05:54:05.204Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1342.8698323378674,
"area_90": 4757.955674702106,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "4da3ead14196c9538cf488290cd9249e",
"classification": {
"BBH": 0.06659779152973368,
"BNS": 5.010422789812425e-14,
"NSBH": 3.4737912830948442e-12,
"Terrestrial": 0.9334022084667424
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-30T05:59:04Z",
"superevent_id": "S230830n",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-30T05:59:05.855907Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-30T05:59:05.855926Z",
"modified": "2023-08-30T05:59:05.859419Z"
}
},
{
"id": 6547,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 152134,
"topic": "igwn.gwalert",
"uuid": "a8dd64ba-2a08-4000-82e2-360d4564196e",
"title": "S241204dq - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S241204dq/view/"
},
"event": {
"far": 2.080731466224831e-05,
"time": "2024-12-04T12:10:39.899Z",
"group": "Burst",
"search": "AllSky",
"area_50": 6463.400361771198,
"area_90": 22175.816693769455,
"duration": 0.09375,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "15c85d316d11b241b849cd15f119b314",
"classification": {},
"skymap_version": 0,
"central_frequency": 91.72770690017768
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-04T13:55:11Z",
"superevent_id": "S241204dq",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-04T13:55:12.690923Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-04T13:55:12.690966Z",
"modified": "2024-12-04T13:55:12.701376Z"
}
},
{
"id": 1505,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2601,
"topic": "igwn.gwalert",
"uuid": "959e3006-02ae-4675-80f1-9ef411a4863f",
"title": "S230830q - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230830q/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230830q/view/"
},
"event": {
"far": 1.334454518340415e-07,
"time": "2023-08-30T06:47:44.227Z",
"group": "CBC",
"search": "AllSky",
"area_50": 412.1456356515087,
"area_90": 1676.0694094867004,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.004106583072100313,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "d8784eebc80cd2485cc0bc608ed38272",
"classification": {
"BBH": 0.9227241842398558,
"BNS": 4.4585952030519326e-17,
"NSBH": 3.306156377497461e-15,
"Terrestrial": 0.07727581576014086
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-30T06:52:47Z",
"superevent_id": "S230830q",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-30T06:52:48.499271Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-30T06:52:48.499291Z",
"modified": "2023-08-30T06:52:48.503269Z"
}
},
{
"id": 11101,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 5795342,
"topic": "igwn.gwalert",
"uuid": "09b35a67-0324-42d0-bb9b-e10fb106b6f7",
"title": "S251112ex - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S251112ex/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S251112ex/view/"
},
"event": {
"far": 1.20795e-05,
"time": "2025-11-12T22:27:15.813Z",
"group": "Burst",
"search": "AllSky",
"area_50": 402.8609497013602,
"area_90": 3423.4787788163508,
"duration": 0.007008,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "b9a49497baf9a2f2fe8caf7a793f2b18",
"classification": {},
"skymap_version": 0,
"central_frequency": 1677.192749
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2025-11-12T22:30:57Z",
"superevent_id": "S251112ex",
"external_coinc": null
},
"message_text": "",
"published": "2025-11-13T00:34:33.655707Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2025-11-13T00:34:33.655731Z",
"modified": "2025-11-13T00:34:33.661604Z"
}
},
{
"id": 1507,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 2603,
"topic": "igwn.gwalert",
"uuid": "41a9d688-d2c3-4414-a255-d751c194b81d",
"title": "S230830ab - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230830ab/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230830ab/view/"
},
"event": {
"far": 4.300576990014476e-06,
"time": "2023-08-30T09:43:02.187Z",
"group": "CBC",
"search": "AllSky",
"area_50": 413.6668553834539,
"area_90": 1527.3046108730211,
"duration": null,
"pipeline": "pycbc",
"properties": {
"HasNS": 1.0,
"HasMassGap": 0.5505836931983685,
"HasRemnant": 0.08648472365630942
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "d00475511e4ef9afa1fb67c7dab528a3",
"classification": {
"BBH": 0.0,
"BNS": 0.0074080583882985525,
"NSBH": 0.0019175404230514451,
"Terrestrial": 0.99067440118865
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-30T10:43:43Z",
"superevent_id": "S230830ab",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-30T10:43:45.335055Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-30T10:43:45.335074Z",
"modified": "2023-08-30T10:43:45.339656Z"
}
},
{
"id": 6549,
"sequence_number": 2,
"sequence_type": "PRELIMINARY",
"message": {
"id": 152142,
"topic": "igwn.gwalert",
"uuid": "e6cb7d43-8bd5-46a1-9967-137882e10ca3",
"title": "S241204dz - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"gracedb": "https://gracedb.ligo.org/superevents/S241204dz/view/"
},
"event": {
"far": 7.451204105020436e-06,
"time": "2024-12-04T14:34:17.937Z",
"group": "Burst",
"search": "AllSky",
"area_50": 7058.459556225914,
"area_90": 22455.301477624773,
"duration": 0.15625,
"pipeline": "MLy",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "aa7d354131832e1fa597b5e60a42406b",
"classification": {},
"skymap_version": 0,
"central_frequency": 92.27393439616253
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2024-12-04T14:39:35Z",
"superevent_id": "S241204dz",
"external_coinc": null
},
"message_text": "",
"published": "2024-12-04T14:39:36.212961Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2024-12-04T14:39:36.212988Z",
"modified": "2024-12-04T14:39:36.220431Z"
}
}
]
}