GET /api/v0/nonlocalizedeventsequence/?format=api&offset=9100&ordering=sequence_number
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=9200&ordering=sequence_number",
    "previous": "https://hermes.lco.global/api/v0/nonlocalizedeventsequence/?format=api&limit=100&offset=9000&ordering=sequence_number",
    "results": [
        {
            "id": 3147,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5029,
                "topic": "igwn.gwalert",
                "uuid": "afafe3ec-1427-4546-988d-cd44d2285e7b",
                "title": "S231126cp - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231126cp/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231126cp/view/"
                    },
                    "event": {
                        "far": 1.292470096814213e-05,
                        "time": "2023-11-26T23:28:13.221Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1726.6368516106731,
                        "area_90": 5311.050186896265,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.08372173189005286,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "aca03f8608adfeacf12896bb29ef0089",
                        "classification": {
                            "BBH": 0.2505731243301296,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.7494268756698703
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-11-26T23:33:13Z",
                    "superevent_id": "S231126cp",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-11-26T23:33:14.865101Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-11-26T23:33:14.865127Z",
                "modified": "2023-11-26T23:33:14.877907Z"
            }
        },
        {
            "id": 9299,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 672953,
                "topic": "igwn.gwalert",
                "uuid": "869f3966-ad40-403d-bfa3-7b7407675d02",
                "title": "S250719ak - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250719ak/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250719ak/view/"
                    },
                    "event": {
                        "far": 1.806708234595912e-05,
                        "time": "2025-07-19T08:00:44.168Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 533.7907583543023,
                        "area_90": 3914.465561264883,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.01766641570989397,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "ece4b4df4ca57387a5d429a9485fe39c",
                        "classification": {
                            "BBH": 0.05872505034943411,
                            "BNS": 7.039630658570799e-17,
                            "NSBH": 5.135620560585407e-15,
                            "Terrestrial": 0.9412749496505607
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-07-19T08:09:30Z",
                    "superevent_id": "S250719ak",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-07-19T08:09:31.322789Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-07-19T08:09:31.322805Z",
                "modified": "2025-07-19T08:09:31.326449Z"
            }
        },
        {
            "id": 3149,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5031,
                "topic": "igwn.gwalert",
                "uuid": "2addd4d4-6b61-4320-87c4-abf7af8b54b3",
                "title": "S231127a - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231127a/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231127a/view/"
                    },
                    "event": {
                        "far": 1.294631574125932e-05,
                        "time": "2023-11-27T00:04:54.218Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1394.2765681070512,
                        "area_90": 5588.856383461161,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.04264138160689884,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "89f033c175f907dd6c79e14f72f58c78",
                        "classification": {
                            "BBH": 0.11508146402699215,
                            "BNS": 8.47494860196306e-14,
                            "NSBH": 6.384214409042981e-12,
                            "Terrestrial": 0.8849185359665389
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-11-27T00:09:51Z",
                    "superevent_id": "S231127a",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-11-27T00:09:52.871437Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-11-27T00:09:52.871460Z",
                "modified": "2023-11-27T00:09:52.888653Z"
            }
        },
        {
            "id": 7333,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 167092,
                "topic": "igwn.gwalert",
                "uuid": "3a4a89dc-e39d-4b68-bc04-b309712c86fa",
                "title": "S250115cm - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250115cm/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250115cm/view/"
                    },
                    "event": {
                        "far": 2.156386447383357e-05,
                        "time": "2025-01-15T23:04:34.302Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 351.8214049019561,
                        "area_90": 1297.9676223190695,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.04025757426716506,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "7d4de153f172529adeac82eb90984da1",
                        "classification": {
                            "BBH": 0.050959868055512565,
                            "BNS": 9.653095198605503e-17,
                            "NSBH": 5.906843101184434e-15,
                            "Terrestrial": 0.9490401319444814
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-01-15T23:09:40Z",
                    "superevent_id": "S250115cm",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-01-15T23:09:41.411145Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-01-15T23:09:41.411178Z",
                "modified": "2025-01-15T23:09:41.432718Z"
            }
        },
        {
            "id": 3151,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5034,
                "topic": "igwn.gwalert",
                "uuid": "3cc570a4-f843-445e-a794-9a84c6535e0c",
                "title": "S231127ag - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231127ag/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231127ag/view/"
                    },
                    "event": {
                        "far": 2.059783495554782e-06,
                        "time": "2023-11-27T06:15:46.542Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 876.0127421891553,
                        "area_90": 4401.255875487359,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.04264138160689884,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "3ba1f907ea883f541c377c8a467c8441",
                        "classification": {
                            "BBH": 0.505841591699596,
                            "BNS": 1.2829825469657411e-15,
                            "NSBH": 9.257059008225459e-14,
                            "Terrestrial": 0.4941584083003101
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-11-27T06:20:46Z",
                    "superevent_id": "S231127ag",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-11-27T06:20:47.742263Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-11-27T06:20:47.742302Z",
                "modified": "2023-11-27T06:20:47.749098Z"
            }
        },
        {
            "id": 10732,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5784273,
                "topic": "igwn.gwalert",
                "uuid": "c3b21ddf-aca9-430a-8619-ac61b4ae6dd7",
                "title": "S251003r - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S251003r/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S251003r/view/"
                    },
                    "event": {
                        "far": 1.788136925686881e-05,
                        "time": "2025-10-03T06:52:14.021Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 413.87667879475674,
                        "area_90": 2077.2517718976383,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005275362318840579,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "8c199b64bd48c5561f05fb0740a0baf2",
                        "classification": {
                            "BBH": 0.07261411935468183,
                            "BNS": 2.25188198612002e-16,
                            "NSBH": 1.6335919395419305e-14,
                            "Terrestrial": 0.9273858806453016
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-10-03T06:57:13Z",
                    "superevent_id": "S251003r",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-10-03T06:57:13.983374Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-10-03T06:57:13.983394Z",
                "modified": "2025-10-03T06:57:13.991582Z"
            }
        },
        {
            "id": 3153,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5036,
                "topic": "igwn.gwalert",
                "uuid": "954e6e30-23c6-4fd7-98b2-03d80ffa50fb",
                "title": "S231127aj - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231127aj/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231127aj/view/"
                    },
                    "event": {
                        "far": 2.225920979981311e-05,
                        "time": "2023-11-27T06:36:02.359Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 5607.320843655806,
                        "area_90": 20817.839575817787,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.000689655172413793,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "5bda158048ee5c008be9c7fedb6d5d0b",
                        "classification": {
                            "BBH": 0.00880763941300874,
                            "BNS": 6.448497651023366e-05,
                            "NSBH": 0.003061124631069942,
                            "Terrestrial": 0.9880667509794111
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-11-27T06:41:02Z",
                    "superevent_id": "S231127aj",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-11-27T06:41:04.222590Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-11-27T06:41:04.222616Z",
                "modified": "2023-11-27T06:41:04.233853Z"
            }
        },
        {
            "id": 9301,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 697977,
                "topic": "igwn.gwalert",
                "uuid": "75b9cb73-ee96-4d47-9bef-e10342034c31",
                "title": "S250719ap - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250719ap/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250719ap/view/"
                    },
                    "event": {
                        "far": 6.434974693547701e-06,
                        "time": "2025-07-19T10:00:35.680Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 4363.487661452857,
                        "area_90": 22801.92975309698,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "48325363b70eac7012e45cb893875962",
                        "classification": {
                            "BBH": 0.08511844246043218,
                            "BNS": 0.0,
                            "NSBH": 0.007148844359383524,
                            "Terrestrial": 0.9077327131801843
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-07-19T10:05:36Z",
                    "superevent_id": "S250719ap",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-07-19T11:25:33.640824Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-07-19T11:25:33.640846Z",
                "modified": "2025-07-19T11:25:33.646010Z"
            }
        },
        {
            "id": 3155,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5038,
                "topic": "igwn.gwalert",
                "uuid": "f1fdedd6-2f6f-45fe-ad88-90d15fd6713a",
                "title": "S231127ax - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231127ax/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231127ax/view/"
                    },
                    "event": {
                        "far": 7.36137653737471e-06,
                        "time": "2023-11-27T11:03:36.304Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 424.0006583901164,
                        "area_90": 1640.8190763878315,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.805983303366329,
                            "HasRemnant": 0.06890243747258067
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "d48922dafddd8c87a0742a641922561c",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.0009931107810314998,
                            "NSBH": 0.00248051623647891,
                            "Terrestrial": 0.9965263729824896
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-11-27T11:08:40Z",
                    "superevent_id": "S231127ax",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-11-27T11:08:41.351892Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-11-27T11:08:41.351920Z",
                "modified": "2023-11-27T11:08:41.362019Z"
            }
        },
        {
            "id": 7336,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 167125,
                "topic": "igwn.gwalert",
                "uuid": "097fa12c-7414-4d51-a0d7-62858e65906e",
                "title": "S250116f - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250116f/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250116f/view/"
                    },
                    "event": {
                        "far": 8.516317e-06,
                        "time": "2025-01-16T00:58:53.170Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 561.9070954688763,
                        "area_90": 2448.219563080974,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.036456463541162366,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "661bf472cccec33d396ae2f194624cf6",
                        "classification": {
                            "BBH": 0.093432298,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.906567702
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-01-16T01:03:59Z",
                    "superevent_id": "S250116f",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-01-16T01:04:00.182520Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-01-16T01:04:00.182550Z",
                "modified": "2025-01-16T01:04:00.196026Z"
            }
        },
        {
            "id": 3157,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5043,
                "topic": "igwn.gwalert",
                "uuid": "17f9355a-798b-4c4c-ba4c-5029947e268c",
                "title": "S231127bo - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231127bo/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231127bo/view/"
                    },
                    "event": {
                        "far": 1.00198e-05,
                        "time": "2023-11-27T14:25:41.316Z",
                        "group": "Burst",
                        "search": "BBH",
                        "area_50": 3175.047859833845,
                        "area_90": 9799.592601485585,
                        "duration": 0.042305,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "1756917229e5c79dc410168f53e3f2fe",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 35.503414
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-11-27T14:32:24Z",
                    "superevent_id": "S231127bo",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-11-27T14:32:24.754696Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-11-27T14:32:24.754717Z",
                "modified": "2023-11-27T14:32:24.760923Z"
            }
        },
        {
            "id": 7337,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 167126,
                "topic": "igwn.gwalert",
                "uuid": "e586a368-d84f-44c1-85d5-e2dfddc2a717",
                "title": "S250116g - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250116g/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250116g/view/"
                    },
                    "event": {
                        "far": 1.06785e-05,
                        "time": "2025-01-16T01:01:43.197Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 293.75277582390845,
                        "area_90": 1007.9916678986114,
                        "duration": 0.123025,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "cae496a15ebf8c6ecdf872eb13fa2d20",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 112.142883
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-01-16T01:07:55Z",
                    "superevent_id": "S250116g",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-01-16T01:07:56.083663Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-01-16T01:07:56.083694Z",
                "modified": "2025-01-16T01:07:56.096092Z"
            }
        },
        {
            "id": 3159,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5045,
                "topic": "igwn.gwalert",
                "uuid": "dc8f6df3-8190-4df9-9830-8c04f6c25be4",
                "title": "S231127br - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231127br/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231127br/view/"
                    },
                    "event": {
                        "far": 3.17298e-06,
                        "time": "2023-11-27T14:59:51.306Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 1288.3157453991414,
                        "area_90": 5211.174243116136,
                        "duration": 0.011348,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "4f78b5ff409d0143cd1c5d16c76a960e",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 606.79657
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-11-27T15:06:52Z",
                    "superevent_id": "S231127br",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-11-27T15:06:53.688902Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-11-27T15:06:53.688948Z",
                "modified": "2023-11-27T15:06:53.696613Z"
            }
        },
        {
            "id": 10277,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5776268,
                "topic": "igwn.gwalert",
                "uuid": "f78178e2-eae2-458a-b01f-6c45b4236ec3",
                "title": "S250907af - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250907af/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250907af/view/"
                    },
                    "event": {
                        "far": 1.788678630282267e-06,
                        "time": "2025-09-07T03:30:02.841Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 443.82897075823024,
                        "area_90": 1619.8367352575522,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005275362318840579,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "710357d69339d0c8a184c2c46680f715",
                        "classification": {
                            "BBH": 0.48722071206988893,
                            "BNS": 5.824568157646173e-17,
                            "NSBH": 3.929375194406542e-15,
                            "Terrestrial": 0.5127792879301071
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-09-07T03:35:02Z",
                    "superevent_id": "S250907af",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-09-07T03:35:03.504533Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-09-07T03:35:03.504555Z",
                "modified": "2025-09-07T03:35:03.515135Z"
            }
        },
        {
            "id": 3161,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5049,
                "topic": "igwn.gwalert",
                "uuid": "1fdd3cad-2e56-48db-a301-8649c0e1c883",
                "title": "S231127cg - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231127cg/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231127cg/view/"
                    },
                    "event": {
                        "far": 5.814757056175128e-09,
                        "time": "2023-11-27T16:53:00.882Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 905.8076665941521,
                        "area_90": 3283.3167400660855,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.006334368530020704,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": true,
                        "skymap_hash": "7ba154dbf8f7835e57f2096b9bea4408",
                        "classification": {
                            "BBH": 0.9955590796043842,
                            "BNS": 2.621351222792652e-22,
                            "NSBH": 1.996296203465784e-20,
                            "Terrestrial": 0.004440920395615833
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-11-27T16:58:15Z",
                    "superevent_id": "S231127cg",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-11-27T16:58:16.869375Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-11-27T16:58:16.869401Z",
                "modified": "2023-11-27T16:58:16.877361Z"
            }
        },
        {
            "id": 7339,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 167141,
                "topic": "igwn.gwalert",
                "uuid": "748a046d-3a93-4494-a1f0-110bc47ee0f0",
                "title": "S250116n - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250116n/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250116n/view/"
                    },
                    "event": {
                        "far": 5.043301920729956e-06,
                        "time": "2025-01-16T01:53:18.385Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 743.1945228344885,
                        "area_90": 2522.916697504768,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.012106583072100312,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "1cadbfe9e256c8464aeda0d523754ff8",
                        "classification": {
                            "BBH": 0.2705044822734675,
                            "BNS": 5.983105736508302e-16,
                            "NSBH": 4.074554739983221e-14,
                            "Terrestrial": 0.7294955177264911
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-01-16T01:58:21Z",
                    "superevent_id": "S250116n",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-01-16T01:58:22.426095Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-01-16T01:58:22.426128Z",
                "modified": "2025-01-16T01:58:22.434535Z"
            }
        },
        {
            "id": 3164,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5053,
                "topic": "igwn.gwalert",
                "uuid": "800c7aad-070a-4229-bd26-ee4fd67632f5",
                "title": "S231127cp - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231127cp/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231127cp/view/"
                    },
                    "event": {
                        "far": 2.093252465626952e-05,
                        "time": "2023-11-27T18:42:12.396Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 996.6612036882608,
                        "area_90": 3528.3904844677454,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0041299748849658105,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "347037881ba8029f29a998521204a4eb",
                        "classification": {
                            "BBH": 0.06137384496759549,
                            "BNS": 4.073436662370395e-16,
                            "NSBH": 4.584145189652763e-07,
                            "Terrestrial": 0.9386256966178852
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-11-27T18:47:09Z",
                    "superevent_id": "S231127cp",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-11-27T18:47:12.373936Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-11-27T18:47:12.373959Z",
                "modified": "2023-11-27T18:47:12.380669Z"
            }
        },
        {
            "id": 9303,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 719684,
                "topic": "igwn.gwalert",
                "uuid": "39dd4396-fdb6-465a-bc50-3b6297eba1a0",
                "title": "S250719bh - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250719bh/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250719bh/view/"
                    },
                    "event": {
                        "far": 2.267793e-05,
                        "time": "2025-07-19T12:00:13.294Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 770.0519194812458,
                        "area_90": 2780.579846584596,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005275362318840579,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "392c015a38615627b97fc6dd629f6ec7",
                        "classification": {
                            "BBH": 0.02812034274532381,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9718796572546762
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-07-19T12:05:26Z",
                    "superevent_id": "S250719bh",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-07-19T12:05:26.868936Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-07-19T12:05:26.868954Z",
                "modified": "2025-07-19T12:05:26.875500Z"
            }
        },
        {
            "id": 3166,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5056,
                "topic": "igwn.gwalert",
                "uuid": "060e5baa-047c-4b1a-bce5-ce926747cca8",
                "title": "S231127dc - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231127dc/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231127dc/view/"
                    },
                    "event": {
                        "far": 2.08316e-05,
                        "time": "2023-11-27T21:56:22.883Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 134.2869832337867,
                        "area_90": 459.0936239305083,
                        "duration": 0.055144,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "6c49b1cca8d03b02985c6d9e161a22d1",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 302.120697
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-11-27T22:02:41Z",
                    "superevent_id": "S231127dc",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-11-27T22:02:42.628956Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-11-27T22:02:42.628979Z",
                "modified": "2023-11-27T22:02:42.635547Z"
            }
        },
        {
            "id": 7341,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 167176,
                "topic": "igwn.gwalert",
                "uuid": "2b509b7b-e832-4622-873c-e7e77fc3f110",
                "title": "S250116ba - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250116ba/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250116ba/view/"
                    },
                    "event": {
                        "far": 7.578012e-06,
                        "time": "2025-01-16T05:14:26.950Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1493.5230416532718,
                        "area_90": 5496.534082487932,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.04264138160689884,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "3a1a760ace308b57448f38bfcb7c0c08",
                        "classification": {
                            "BBH": 0.105517004,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.894482996
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-01-16T05:19:31Z",
                    "superevent_id": "S250116ba",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-01-16T05:19:32.303222Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-01-16T05:19:32.303243Z",
                "modified": "2025-01-16T05:19:32.321167Z"
            }
        },
        {
            "id": 3168,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5060,
                "topic": "igwn.gwalert",
                "uuid": "3442a6b7-1fdf-45bc-bd68-aa5e11f2a567",
                "title": "S231128a - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231128a/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231128a/view/"
                    },
                    "event": {
                        "far": 2.348418487439591e-06,
                        "time": "2023-11-28T02:26:55.351Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 271.14430325603263,
                        "area_90": 1287.47645175393,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.6937375748467594,
                            "HasMassGap": 0.4040582377801711,
                            "HasRemnant": 0.15683875168426525
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "11fecaa969b9295d2a17953d8c52ea84",
                        "classification": {
                            "BBH": 0.0020290522079074572,
                            "BNS": 0.0,
                            "NSBH": 0.01613874362207799,
                            "Terrestrial": 0.9818322041700146
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-11-28T02:32:02Z",
                    "superevent_id": "S231128a",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-11-28T02:32:03.853530Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-11-28T02:32:03.853553Z",
                "modified": "2023-11-28T02:32:03.860261Z"
            }
        },
        {
            "id": 10952,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5787169,
                "topic": "igwn.gwalert",
                "uuid": "67bc7066-903d-4218-b4d9-1d6c1d56e934",
                "title": "S251013au - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "gracedb": "https://gracedb.ligo.org/superevents/S251013au/view/"
                    },
                    "event": {
                        "far": 1.666763630370614e-06,
                        "time": "2025-10-13T06:29:21.474Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 6171.326173237711,
                        "area_90": 21140.128335578873,
                        "duration": 0.15625,
                        "pipeline": "MLy",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "02a4c41d6e53bd57ef543ddd84b48e59",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 392.0
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-10-13T06:34:38Z",
                    "superevent_id": "S251013au",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-10-13T06:34:38.811740Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-10-13T06:34:38.811752Z",
                "modified": "2025-10-13T06:34:38.820476Z"
            }
        },
        {
            "id": 7343,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 167222,
                "topic": "igwn.gwalert",
                "uuid": "80534301-0493-412c-aa87-ff4627f9020c",
                "title": "S250116cf - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250116cf/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250116cf/view/"
                    },
                    "event": {
                        "far": 1.38982e-05,
                        "time": "2025-01-16T08:52:16.070Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 746.1320505927275,
                        "area_90": 2905.6345997210597,
                        "duration": 0.01507,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "6b054d5eaa4c1c47a8e104d5ff5d85d0",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 436.447723
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-01-16T08:58:52Z",
                    "superevent_id": "S250116cf",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-01-16T08:58:53.034906Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-01-16T08:58:53.034925Z",
                "modified": "2025-01-16T08:58:53.043671Z"
            }
        },
        {
            "id": 3171,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5063,
                "topic": "igwn.gwalert",
                "uuid": "ebc5b531-7d22-40c9-a436-4009519d14af",
                "title": "S231128h - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231128h/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231128h/view/"
                    },
                    "event": {
                        "far": 1.636802483019031e-05,
                        "time": "2023-11-28T03:48:23.523Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 356.48997580344314,
                        "area_90": 6580.06217845555,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.042985347985347984,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "e5d625f457d84f894aa944ee53c98261",
                        "classification": {
                            "BBH": 0.07261752699169605,
                            "BNS": 2.1753714007052162e-18,
                            "NSBH": 1.3503504238522072e-16,
                            "Terrestrial": 0.9273824730083038
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-11-28T03:53:22Z",
                    "superevent_id": "S231128h",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-11-28T03:53:22.688524Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-11-28T03:53:22.688567Z",
                "modified": "2023-11-28T03:53:22.695488Z"
            }
        },
        {
            "id": 3172,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5064,
                "topic": "igwn.gwalert",
                "uuid": "07fa77be-9340-42a5-8f44-aac4bec8e6a6",
                "title": "S231128i - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231128i/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231128i/view/"
                    },
                    "event": {
                        "far": 8.271179e-06,
                        "time": "2023-11-28T03:48:54.099Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 489.51801856941313,
                        "area_90": 1848.1246067549898,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.006125356125356125,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "fcdae331f8d4da72958801578aea3b4b",
                        "classification": {
                            "BBH": 0.058145265,
                            "BNS": 0.0,
                            "NSBH": 1.105e-06,
                            "Terrestrial": 0.94185363
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-11-28T03:55:12Z",
                    "superevent_id": "S231128i",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-11-28T03:55:13.870593Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-11-28T03:55:13.870619Z",
                "modified": "2023-11-28T03:55:13.877240Z"
            }
        },
        {
            "id": 9305,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 788132,
                "topic": "igwn.gwalert",
                "uuid": "6e7fc591-0529-4846-9693-7d512864e9dc",
                "title": "S250719cd - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250719cd/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250719cd/view/"
                    },
                    "event": {
                        "far": 8.84262e-06,
                        "time": "2025-07-19T17:43:06.527Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 3806.196681032642,
                        "area_90": 10826.048729578843,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.015682288725766987,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "0a90b43d60b07ea41820d5617a7f8268",
                        "classification": {
                            "BBH": 0.002064545431937237,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9979354545680628
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-07-19T17:48:46Z",
                    "superevent_id": "S250719cd",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-07-19T17:48:46.540549Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-07-19T17:48:46.540563Z",
                "modified": "2025-07-19T17:48:46.545796Z"
            }
        },
        {
            "id": 3174,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5066,
                "topic": "igwn.gwalert",
                "uuid": "78145cc6-9ed8-4d34-991c-9cf8fa2328e6",
                "title": "S231128j - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231128j/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231128j/view/"
                    },
                    "event": {
                        "far": 1.2392e-05,
                        "time": "2023-11-28T04:10:55.271Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 267.73467282236226,
                        "area_90": 1415.8883794712387,
                        "duration": 0.00547,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "1eb509d5a0dfeaf217826653614be567",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 304.665466
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-11-28T04:16:49Z",
                    "superevent_id": "S231128j",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-11-28T04:16:50.121019Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-11-28T04:16:50.121055Z",
                "modified": "2023-11-28T04:16:50.127781Z"
            }
        },
        {
            "id": 7345,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 167230,
                "topic": "igwn.gwalert",
                "uuid": "9d77c263-45cf-4a0a-bdcd-821d8012585a",
                "title": "S250116cj - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "gracedb": "https://gracedb.ligo.org/superevents/S250116cj/view/"
                    },
                    "event": {
                        "far": 6.707055793469238e-06,
                        "time": "2025-01-16T09:28:37.204Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 7253.175681914905,
                        "area_90": 22639.10678592602,
                        "duration": 0.15625,
                        "pipeline": "MLy",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "6156e029bedc1d52456e2f92cd550226",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 304.6876389417843
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-01-16T09:34:01Z",
                    "superevent_id": "S250116cj",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-01-16T09:34:02.571287Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-01-16T09:34:02.571308Z",
                "modified": "2025-01-16T09:34:02.576127Z"
            }
        },
        {
            "id": 3176,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5069,
                "topic": "igwn.gwalert",
                "uuid": "25775250-87b8-4226-9867-7ab5d08a9a0b",
                "title": "S231128z - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231128z/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231128z/view/"
                    },
                    "event": {
                        "far": 1.814944043471237e-05,
                        "time": "2023-11-28T12:33:53.305Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1957.0229572211385,
                        "area_90": 7546.928457738815,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.04264138160689884,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "fc40f3e3dc184e244c476d5f6df8739f",
                        "classification": {
                            "BBH": 0.08858064123796898,
                            "BNS": 9.018681070951587e-14,
                            "NSBH": 6.765544673265737e-12,
                            "Terrestrial": 0.9114193587551753
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-11-28T12:38:50Z",
                    "superevent_id": "S231128z",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-11-28T12:38:52.548283Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-11-28T12:38:52.548306Z",
                "modified": "2023-11-28T12:38:52.555121Z"
            }
        },
        {
            "id": 10279,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5776288,
                "topic": "igwn.gwalert",
                "uuid": "433a4baf-5641-441d-aa55-dd52695e5054",
                "title": "S250907ax - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250907ax/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250907ax/view/"
                    },
                    "event": {
                        "far": 7.17192e-07,
                        "time": "2025-09-07T05:36:58.892Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 1211.1007300397139,
                        "area_90": 5361.407805608935,
                        "duration": 0.154035,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "94aa5f4612c5bd675e5e786af6c92cb1",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 1065.835938
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-09-07T05:44:29Z",
                    "superevent_id": "S250907ax",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-09-07T05:44:30.344173Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-09-07T05:44:30.344196Z",
                "modified": "2025-09-07T05:44:30.353825Z"
            }
        },
        {
            "id": 3178,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5071,
                "topic": "igwn.gwalert",
                "uuid": "651319a2-aa0a-4d4a-975c-87e1fbd1b2f9",
                "title": "S231128ab - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231128ab/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231128ab/view/"
                    },
                    "event": {
                        "far": 7.123810599206421e-06,
                        "time": "2023-11-28T12:59:08.662Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 599.465486092076,
                        "area_90": 3086.082733441461,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.19082357408673198,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "b2969dfa68bbae2151c2cb997c910177",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.0052046068789526525,
                            "NSBH": 0.0010568934514065393,
                            "Terrestrial": 0.9937384996696408
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-11-28T13:04:09Z",
                    "superevent_id": "S231128ab",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-11-28T13:04:10.050954Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-11-28T13:04:10.050980Z",
                "modified": "2023-11-28T13:04:10.057821Z"
            }
        },
        {
            "id": 7347,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 167323,
                "topic": "igwn.gwalert",
                "uuid": "a963a242-a3ca-4a2e-b24c-7d7640fd3ac3",
                "title": "S250116ea - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250116ea/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250116ea/view/"
                    },
                    "event": {
                        "far": 9.00857e-06,
                        "time": "2025-01-16T16:23:46.789Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 1272.3691661401292,
                        "area_90": 3941.322957911639,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "5565860b532cc19c7392923b528a5ea9",
                        "classification": {
                            "BBH": 0.0023496283753821068,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9976503716246179
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-01-16T16:29:28Z",
                    "superevent_id": "S250116ea",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-01-16T16:29:28.772805Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-01-16T16:29:28.772834Z",
                "modified": "2025-01-16T16:29:28.783456Z"
            }
        },
        {
            "id": 3180,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5073,
                "topic": "igwn.gwalert",
                "uuid": "951c638d-d2dc-48c5-975a-e41a2a18c760",
                "title": "S231128al - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231128al/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231128al/view/"
                    },
                    "event": {
                        "far": 5.53053e-07,
                        "time": "2023-11-28T14:31:57.207Z",
                        "group": "Burst",
                        "search": "BBH",
                        "area_50": 1042.402707352269,
                        "area_90": 3135.6010585089202,
                        "duration": 0.007679,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "bfb589fa17186b4260c49180a62253ea",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 125.055519
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-11-28T14:38:11Z",
                    "superevent_id": "S231128al",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-11-28T14:38:12.313470Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-11-28T14:38:12.313497Z",
                "modified": "2023-11-28T14:38:12.320417Z"
            }
        },
        {
            "id": 9307,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 888118,
                "topic": "igwn.gwalert",
                "uuid": "34c7bfd9-1463-439c-aa60-49340f23c7db",
                "title": "S250720j - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250720j/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250720j/view/",
                        "combined_skymap": "https://gracedb.ligo.org/api/superevents/S250720j/files/combined-ext.multiorder.fits,1"
                    },
                    "event": {
                        "far": 3.014051e-05,
                        "time": "2025-07-20T02:15:08.464Z",
                        "group": "CBC",
                        "search": "SSM",
                        "area_50": 419.5419108999321,
                        "area_90": 2175.449128387345,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.88,
                            "HasSSM": 1.0,
                            "HasMassGap": 0.12
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": true,
                        "skymap_hash": "a7cd7278aae891d74b11a85ded04ac99",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-07-20T02:21:49Z",
                    "superevent_id": "S250720j",
                    "external_coinc": {
                        "ivorn": "ivo://nasa.gsfc.gcn/Fermi#GBM_Gnd_Pos_2025-07-20T02:15:09.73_774670514_0-630",
                        "search": "GRB",
                        "area_50": 35.866689369570956,
                        "area_90": 160.65916324190633,
                        "observatory": "Fermi",
                        "gcn_notice_id": 774670514,
                        "time_difference": 1.27,
                        "combined_skymap_hash": "78e5167916278c4a6a9d85dd9e58d0dc",
                        "time_coincidence_far": 1.8923836187214613e-09,
                        "combined_skymap_version": 1,
                        "time_sky_position_coincidence_far": 1.3980119311210162e-09
                    }
                },
                "message_text": "",
                "published": "2025-07-20T02:21:50.816101Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-07-20T02:21:50.816121Z",
                "modified": "2025-07-20T02:21:50.824027Z"
            }
        },
        {
            "id": 7349,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 167418,
                "topic": "igwn.gwalert",
                "uuid": "3095b9fe-69e5-4f36-95db-f1ec1d5f4656",
                "title": "S250116ek - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250116ek/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250116ek/view/"
                    },
                    "event": {
                        "far": 1.14724e-05,
                        "time": "2025-01-16T22:28:48.715Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 8063.933343188892,
                        "area_90": 24222.014600794282,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.034791446146855726,
                            "HasRemnant": 0.2999788194834058
                        },
                        "instruments": [
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "037103119ae7d6a6e5bc424ee6d93c90",
                        "classification": {
                            "BBH": 0.000423406,
                            "BNS": 0.0,
                            "NSBH": 0.000635109,
                            "Terrestrial": 0.998941485
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-01-16T22:33:51Z",
                    "superevent_id": "S250116ek",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-01-16T22:33:52.456734Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-01-16T22:33:52.456759Z",
                "modified": "2025-01-16T22:33:52.461481Z"
            }
        },
        {
            "id": 3184,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5078,
                "topic": "igwn.gwalert",
                "uuid": "6324a360-9005-47fa-a505-96d9ec8e2515",
                "title": "S231129d - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231129d/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231129d/view/"
                    },
                    "event": {
                        "far": 5.647429588861996e-06,
                        "time": "2023-11-29T00:57:39.590Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 362.4699430255727,
                        "area_90": 3898.5189820058704,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 0.008227513038719674,
                            "HasMassGap": 0.09589782843760171,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "c112508ba12a98946ab2ef9ccac7f2f7",
                        "classification": {
                            "BBH": 0.10258054964199213,
                            "BNS": 0.0,
                            "NSBH": 0.0014187475639689184,
                            "Terrestrial": 0.896000702794039
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-11-29T01:02:36Z",
                    "superevent_id": "S231129d",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-11-29T01:02:38.760869Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-11-29T01:02:38.760896Z",
                "modified": "2023-11-29T01:02:38.766501Z"
            }
        },
        {
            "id": 3185,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5079,
                "topic": "igwn.gwalert",
                "uuid": "729ff6fc-8eb0-44b9-bdd4-dc743e83d899",
                "title": "S231129e - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231129e/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231129e/view/"
                    },
                    "event": {
                        "far": 5.501753093994921e-06,
                        "time": "2023-11-29T01:00:42.379Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 703.328074686958,
                        "area_90": 2980.331734144854,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 0.35184518784037,
                            "HasMassGap": 0.020267676767676764,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "86b04e6910fbf000435d083dc856ebd6",
                        "classification": {
                            "BBH": 0.18584532689821248,
                            "BNS": 0.0,
                            "NSBH": 0.000288442303954813,
                            "Terrestrial": 0.8138662307978327
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-11-29T01:05:41Z",
                    "superevent_id": "S231129e",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-11-29T01:05:43.056653Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-11-29T01:05:43.056672Z",
                "modified": "2023-11-29T01:05:43.061890Z"
            }
        },
        {
            "id": 3187,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5081,
                "topic": "igwn.gwalert",
                "uuid": "c6631fcb-064d-4ac1-8c9a-905f5e79715b",
                "title": "S231129k - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231129k/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231129k/view/"
                    },
                    "event": {
                        "far": 1.502008411748123e-05,
                        "time": "2023-11-29T03:16:48.556Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 598.2065456242592,
                        "area_90": 2486.8270707606875,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.3317448977866405,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "732122a475d29f1e4dbaf80e7a541563",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.00012881464610950706,
                            "NSBH": 0.000985334847936328,
                            "Terrestrial": 0.9988858505059541
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-11-29T03:21:53Z",
                    "superevent_id": "S231129k",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-11-29T03:21:54.731006Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-11-29T03:21:54.731024Z",
                "modified": "2023-11-29T03:21:54.736327Z"
            }
        },
        {
            "id": 7351,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 167433,
                "topic": "igwn.gwalert",
                "uuid": "aa6419b5-19c8-4ec0-96a2-8760713375ae",
                "title": "S250116eq - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250116eq/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250116eq/view/"
                    },
                    "event": {
                        "far": 1.31623e-05,
                        "time": "2025-01-16T23:30:17.497Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 520.3620600309234,
                        "area_90": 3164.976336091311,
                        "duration": 0.094687,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "01457bb934e25c9df26a6c92bc315cbd",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 704.632141
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-01-16T23:37:10Z",
                    "superevent_id": "S250116eq",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-01-16T23:37:10.825734Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-01-16T23:37:10.825758Z",
                "modified": "2025-01-16T23:37:10.834500Z"
            }
        },
        {
            "id": 3189,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5083,
                "topic": "igwn.gwalert",
                "uuid": "1f9df19d-c354-4589-b91d-8c9381066b1e",
                "title": "S231129o - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231129o/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231129o/view/"
                    },
                    "event": {
                        "far": 6.422591923183063e-06,
                        "time": "2023-11-29T04:15:44.131Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 461.82132827744465,
                        "area_90": 2783.937021165441,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.05083333333333332,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "551edcd8bd3588b76956a0c00580f38b",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.0022683823338313963,
                            "NSBH": 0.0003489624896416227,
                            "Terrestrial": 0.997382655176527
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-11-29T04:20:47Z",
                    "superevent_id": "S231129o",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-11-29T04:20:49.055742Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-11-29T04:20:49.055759Z",
                "modified": "2023-11-29T04:20:49.061107Z"
            }
        },
        {
            "id": 10734,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5784278,
                "topic": "igwn.gwalert",
                "uuid": "deda0665-7e25-4d52-814f-7584283447d0",
                "title": "S251003t - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S251003t/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S251003t/view/"
                    },
                    "event": {
                        "far": 8.8951e-06,
                        "time": "2025-10-03T06:55:27.307Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 1925.339622114417,
                        "area_90": 6061.3787057150475,
                        "duration": 0.183417,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "547c147f915b3f36ab3c6f2c6903f4fa",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 91.598518
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-10-03T07:02:04Z",
                    "superevent_id": "S251003t",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-10-03T07:02:05.299605Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-10-03T07:02:05.299625Z",
                "modified": "2025-10-03T07:02:05.324863Z"
            }
        },
        {
            "id": 3191,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5086,
                "topic": "igwn.gwalert",
                "uuid": "e910b5d7-b829-44c4-ab09-43c89dfa9c44",
                "title": "S231129u - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231129u/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231129u/view/"
                    },
                    "event": {
                        "far": 2.10823e-05,
                        "time": "2023-11-29T07:02:59.270Z",
                        "group": "Burst",
                        "search": "BBH",
                        "area_50": 1431.834958730251,
                        "area_90": 4530.507096849879,
                        "duration": 0.242557,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "2b5459e451d26ba9638d2aaae4c11b03",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 37.268642
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-11-29T07:08:49Z",
                    "superevent_id": "S231129u",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-11-29T07:08:50.454904Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-11-29T07:08:50.454920Z",
                "modified": "2023-11-29T07:08:50.464199Z"
            }
        },
        {
            "id": 7353,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 167445,
                "topic": "igwn.gwalert",
                "uuid": "89cf14a3-2795-4438-bf0a-f11490b03ea4",
                "title": "S250117a - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250117a/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250117a/view/"
                    },
                    "event": {
                        "far": 2.19937e-06,
                        "time": "2025-01-17T00:08:04.207Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 2198.110056808046,
                        "area_90": 7031.602159579157,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.012106583072100312,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "ef5bde888822c480d45ff1570db540d8",
                        "classification": {
                            "BBH": 0.016048778612244963,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.983951221387755
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-01-17T00:13:50Z",
                    "superevent_id": "S250117a",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-01-17T00:13:51.204377Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-01-17T00:13:51.204402Z",
                "modified": "2025-01-17T00:13:51.209625Z"
            }
        },
        {
            "id": 3193,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5088,
                "topic": "igwn.gwalert",
                "uuid": "3e780ff0-0803-456a-8dec-32580f42f403",
                "title": "S231129ac - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231129ac/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231129ac/view/"
                    },
                    "event": {
                        "far": 1.764726958552341e-08,
                        "time": "2023-11-29T08:17:45.643Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 819.1505977260989,
                        "area_90": 3175.0478598338445,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": true,
                        "skymap_hash": "c23e51bc9d1e33fee30495e35d441f24",
                        "classification": {
                            "BBH": 0.9859787487271021,
                            "BNS": 2.3727197281912782e-17,
                            "NSBH": 1.7635706555257484e-15,
                            "Terrestrial": 0.014021251272896107
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-11-29T08:23:29Z",
                    "superevent_id": "S231129ac",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-11-29T08:23:31.034894Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-11-29T08:23:31.034924Z",
                "modified": "2023-11-29T08:23:31.040654Z"
            }
        },
        {
            "id": 145,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 390,
                "topic": "igwn.gwalert",
                "uuid": "05a68712-320f-4cfa-8d99-a49cd09f1514",
                "title": "S230619x - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230619x/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230619x/view/"
                    },
                    "event": {
                        "far": 3.92954e-06,
                        "time": "2023-06-19T05:39:00.790Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 333.1995771488333,
                        "area_90": 1168.2967541339444,
                        "duration": 0.062638,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "564c5abdab189f0175d4a9752968b646",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 1146.18811
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-06-19T05:45:59Z",
                    "superevent_id": "S230619x",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-06-19T05:45:59.911800Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-06-19T05:45:59.911825Z",
                "modified": "2023-06-19T05:45:59.917036Z"
            }
        },
        {
            "id": 9310,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 949898,
                "topic": "igwn.gwalert",
                "uuid": "74e9c694-549a-4249-a04f-55a18b75a78e",
                "title": "S250720af - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250720af/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250720af/view/"
                    },
                    "event": {
                        "far": 4.867835181392685e-06,
                        "time": "2025-07-20T13:31:44.147Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 500.0091891345527,
                        "area_90": 1813.7135673013318,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005275362318840579,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "94bfdcb0dee2528343dadaa86a91debf",
                        "classification": {
                            "BBH": 0.30718795156394535,
                            "BNS": 5.4410417189436023e-17,
                            "NSBH": 3.649022411003982e-15,
                            "Terrestrial": 0.6928120484360509
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-07-20T13:36:43Z",
                    "superevent_id": "S250720af",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-07-20T13:36:44.529553Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-07-20T13:36:44.529573Z",
                "modified": "2025-07-20T13:36:44.534729Z"
            }
        },
        {
            "id": 3198,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5138,
                "topic": "igwn.gwalert",
                "uuid": "219f66b5-81ee-48e4-9f42-004f3558701e",
                "title": "S231204d - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231204d/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231204d/view/"
                    },
                    "event": {
                        "far": 1.511881509941304e-05,
                        "time": "2023-12-04T02:21:35.678Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 334.98307614490705,
                        "area_90": 1143.537591600215,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.010666666666666666,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "ef0a7c4c8eddcd7de77870f058887a19",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.0012392194852750102,
                            "NSBH": 1.7490370269898706e-05,
                            "Terrestrial": 0.9987432901444551
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-04T02:26:37Z",
                    "superevent_id": "S231204d",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-04T02:26:38.746552Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-04T02:26:38.746570Z",
                "modified": "2023-12-04T02:26:38.752168Z"
            }
        },
        {
            "id": 7355,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 167486,
                "topic": "igwn.gwalert",
                "uuid": "aa6d06f8-fef9-4a67-b427-0a8b314d10fc",
                "title": "S250117s - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250117s/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250117s/view/"
                    },
                    "event": {
                        "far": 1.770104427123442e-05,
                        "time": "2025-01-17T02:31:55.871Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1263.7664062767146,
                        "area_90": 13344.768958857554,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.5158352580482138,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "a999f26e7352c9bab8c89c465d4cd798",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.0014385588641560114,
                            "NSBH": 1.6349369926107828e-05,
                            "Terrestrial": 0.9985450917659179
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-01-17T02:37:00Z",
                    "superevent_id": "S250117s",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-01-17T02:37:01.278558Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-01-17T02:37:01.278579Z",
                "modified": "2025-01-17T02:37:01.289325Z"
            }
        },
        {
            "id": 3200,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5140,
                "topic": "igwn.gwalert",
                "uuid": "04ffd551-4d76-4d79-8abb-3ae0bca1b79a",
                "title": "S231204k - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231204k/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231204k/view/"
                    },
                    "event": {
                        "far": 1.88894e-06,
                        "time": "2023-12-04T03:09:27.582Z",
                        "group": "Burst",
                        "search": "BBH",
                        "area_50": 1159.0645240366218,
                        "area_90": 4418.041748391583,
                        "duration": 0.012785,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "93af8cf229bc4c9c3c3e2149c1de6127",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 56.29015
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-04T03:15:51Z",
                    "superevent_id": "S231204k",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-04T03:15:52.230135Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-04T03:15:52.230152Z",
                "modified": "2023-12-04T03:15:52.235573Z"
            }
        },
        {
            "id": 10281,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5776312,
                "topic": "igwn.gwalert",
                "uuid": "a351526f-9b4a-4a08-9ef7-6b41f29a9690",
                "title": "S250907bt - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250907bt/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250907bt/view/"
                    },
                    "event": {
                        "far": 1.273389e-05,
                        "time": "2025-09-07T08:36:50.911Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 371.807084828547,
                        "area_90": 1698.7303379074021,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.6566024228744329,
                            "HasRemnant": 0.11939041937596076
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "ae5a6801d813b29801c9b71bcd2c7e4b",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.00021564114083660885,
                            "NSBH": 0.0009563215811014828,
                            "Terrestrial": 0.9988280372780619
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-09-07T08:41:55Z",
                    "superevent_id": "S250907bt",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-09-07T08:41:56.057672Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-09-07T08:41:56.057700Z",
                "modified": "2025-09-07T08:41:56.064784Z"
            }
        },
        {
            "id": 3202,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5142,
                "topic": "igwn.gwalert",
                "uuid": "323ed02b-b06a-4e8d-a434-58332a2a4a64",
                "title": "S231204n - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231204n/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231204n/view/"
                    },
                    "event": {
                        "far": 1.662161230342463e-05,
                        "time": "2023-12-04T03:15:54.036Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 2470.8804915016754,
                        "area_90": 11169.31983047021,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.5246669535507132,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "0e256ec70e2e641ae195e5db85b69a58",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.006721099294366925,
                            "NSBH": 0.00015930603898498333,
                            "Terrestrial": 0.9931195946666481
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-04T03:20:52Z",
                    "superevent_id": "S231204n",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-04T03:20:53.780178Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-04T03:20:53.780195Z",
                "modified": "2023-12-04T03:20:53.785932Z"
            }
        },
        {
            "id": 7357,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 167503,
                "topic": "igwn.gwalert",
                "uuid": "2391b53c-cd16-4190-b823-41fd9646a779",
                "title": "S250117y - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250117y/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250117y/view/"
                    },
                    "event": {
                        "far": 3.118653e-06,
                        "time": "2025-01-17T03:39:44.484Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 317.35790959547256,
                        "area_90": 1339.3028343457195,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.3789981204571064,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "104ec4fc36cf8e95e38d47ec1f1b9f4c",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.001898331,
                            "NSBH": 0.001653385,
                            "Terrestrial": 0.996448284
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-01-17T03:44:48Z",
                    "superevent_id": "S250117y",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-01-17T03:44:49.728521Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-01-17T03:44:49.728544Z",
                "modified": "2025-01-17T03:44:49.734064Z"
            }
        },
        {
            "id": 3204,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5144,
                "topic": "igwn.gwalert",
                "uuid": "37fd5db4-27ed-4446-8ed8-0e72824e90fe",
                "title": "S231204p - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231204p/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231204p/view/"
                    },
                    "event": {
                        "far": 1.835905274887293e-06,
                        "time": "2023-12-04T03:31:12.262Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 548.058750322892,
                        "area_90": 2064.662367219471,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.04264138160689884,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "5dd1d47d5cce8895661c50bec62dce2e",
                        "classification": {
                            "BBH": 0.5461747513716715,
                            "BNS": 4.458163180660889e-18,
                            "NSBH": 3.5482525504788795e-16,
                            "Terrestrial": 0.4538252486283282
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-04T03:36:12Z",
                    "superevent_id": "S231204p",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-04T03:36:13.588109Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-04T03:36:13.588135Z",
                "modified": "2023-12-04T03:36:13.593473Z"
            }
        },
        {
            "id": 9312,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 1021980,
                "topic": "igwn.gwalert",
                "uuid": "a6cf9fb7-702b-4bc9-addc-5bffd753805c",
                "title": "S250720bj - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "gracedb": "https://gracedb.ligo.org/superevents/S250720bj/view/"
                    },
                    "event": {
                        "far": 9.01191824534349e-06,
                        "time": "2025-07-20T21:02:44.132Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 5907.787968641404,
                        "area_90": 21164.46785129,
                        "duration": 0.21875,
                        "pipeline": "MLy",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "a9fd9759f0ee11e80e5e35aeccfa6688",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 240.0
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-07-20T21:08:13Z",
                    "superevent_id": "S250720bj",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-07-20T21:40:50.083414Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-07-20T21:40:50.083436Z",
                "modified": "2025-07-20T21:40:50.088818Z"
            }
        },
        {
            "id": 3206,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5146,
                "topic": "igwn.gwalert",
                "uuid": "68b493b4-f295-44da-8f49-3727bbb8e07b",
                "title": "S231204ak - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231204ak/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231204ak/view/"
                    },
                    "event": {
                        "far": 2.177454371121712e-05,
                        "time": "2023-12-04T07:49:13.948Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 72.80872372206873,
                        "area_90": 333.4094005601361,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.022579365079365078,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "349ce64668f46be25298e467d27ac857",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.001002244430464828,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9989977555695352
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-04T07:54:15Z",
                    "superevent_id": "S231204ak",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-04T07:54:16.433851Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-04T07:54:16.433869Z",
                "modified": "2023-12-04T07:54:16.438872Z"
            }
        },
        {
            "id": 7359,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 167508,
                "topic": "igwn.gwalert",
                "uuid": "f4e72438-a046-4e02-a032-d1fffcb2d849",
                "title": "S250117ac - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250117ac/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250117ac/view/"
                    },
                    "event": {
                        "far": 2.05554e-05,
                        "time": "2025-01-17T04:04:20.542Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 192.19824475335727,
                        "area_90": 1295.0300945608308,
                        "duration": 0.027226,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "19c3ad83e748ede71c00552587693951",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 512.338501
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-01-17T04:11:00Z",
                    "superevent_id": "S250117ac",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-01-17T04:11:01.415324Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-01-17T04:11:01.415343Z",
                "modified": "2025-01-17T04:11:01.422206Z"
            }
        },
        {
            "id": 3208,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5148,
                "topic": "igwn.gwalert",
                "uuid": "209b8a7d-5441-4b51-9107-1f93fa19f196",
                "title": "S231204an - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231204an/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231204an/view/"
                    },
                    "event": {
                        "far": 8.804307981336024e-06,
                        "time": "2023-12-04T08:15:54.325Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 984.9110926553046,
                        "area_90": 3392.4249139435365,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 0.0020982506025291696,
                            "HasMassGap": 0.5571326655056802,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "6376bea10998160c608ec5bf3db300e8",
                        "classification": {
                            "BBH": 0.14722951603351503,
                            "BNS": 0.0,
                            "NSBH": 0.001584580024579054,
                            "Terrestrial": 0.8511859039419059
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-04T08:20:53Z",
                    "superevent_id": "S231204an",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-04T08:20:54.718234Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-04T08:20:54.718251Z",
                "modified": "2023-12-04T08:20:54.723681Z"
            }
        },
        {
            "id": 11061,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5794436,
                "topic": "igwn.gwalert",
                "uuid": "dfecbb32-b851-4dd3-ac02-cb41c3bdd892",
                "title": "S251111j - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S251111j/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S251111j/view/"
                    },
                    "event": {
                        "far": 1.852408497005613e-05,
                        "time": "2025-11-11T01:10:14.723Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 718.0157134781533,
                        "area_90": 2644.6142760603875,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005275362318840579,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "b93d685a14f40d9709387a9f1f9f5642",
                        "classification": {
                            "BBH": 0.061180641582552785,
                            "BNS": 1.086640655298956e-15,
                            "NSBH": 7.774455960043686e-14,
                            "Terrestrial": 0.9388193584173684
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-11-11T01:15:17Z",
                    "superevent_id": "S251111j",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-11-11T01:15:18.009363Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-11-11T01:15:18.009404Z",
                "modified": "2025-11-11T01:15:18.014644Z"
            }
        },
        {
            "id": 3210,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5150,
                "topic": "igwn.gwalert",
                "uuid": "8c0396d6-032b-4251-a71d-ee911c6901ec",
                "title": "S231204at - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231204at/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231204at/view/"
                    },
                    "event": {
                        "far": 1.233451604440176e-06,
                        "time": "2023-12-04T09:06:48.941Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1186.7612143285903,
                        "area_90": 5848.1981198314115,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.04264138160689884,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "562f553fa46994492dfffcef3e1433f9",
                        "classification": {
                            "BBH": 0.6366929059824773,
                            "BNS": 7.246322373238801e-17,
                            "NSBH": 5.726996287061526e-15,
                            "Terrestrial": 0.3633070940175168
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-04T09:11:48Z",
                    "superevent_id": "S231204at",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-04T09:11:50.137522Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-04T09:11:50.137539Z",
                "modified": "2023-12-04T09:11:50.142989Z"
            }
        },
        {
            "id": 7361,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 167532,
                "topic": "igwn.gwalert",
                "uuid": "b136e6af-249f-4c04-acb2-0a776309caa2",
                "title": "S250117al - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250117al/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250117al/view/"
                    },
                    "event": {
                        "far": 1.07868e-06,
                        "time": "2025-01-17T05:56:43.201Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 316.41370424460996,
                        "area_90": 1230.4044838795708,
                        "duration": 0.007712,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "36e175a19ffb32d651177df4fa9b1ebe",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 1687.894043
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-01-17T06:02:34Z",
                    "superevent_id": "S250117al",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-01-17T06:02:34.784005Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-01-17T06:02:34.784026Z",
                "modified": "2025-01-17T06:02:34.794722Z"
            }
        },
        {
            "id": 3212,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5152,
                "topic": "igwn.gwalert",
                "uuid": "714ab5b7-dc81-4166-91b6-becde98d1b5d",
                "title": "S231204az - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231204az/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231204az/view/"
                    },
                    "event": {
                        "far": 1.83276571134181e-05,
                        "time": "2023-12-04T10:04:02.412Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1788.3249345336942,
                        "area_90": 5785.251096440574,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.04264138160689884,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "f1e2362b436795d1864bfb6ff2ea44ab",
                        "classification": {
                            "BBH": 0.08405188023439776,
                            "BNS": 5.6700164667636167e-14,
                            "NSBH": 4.267719539002014e-12,
                            "Terrestrial": 0.9159481197612778
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-04T10:09:03Z",
                    "superevent_id": "S231204az",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-04T10:09:04.518889Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-04T10:09:04.518907Z",
                "modified": "2023-12-04T10:09:04.524066Z"
            }
        },
        {
            "id": 9314,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 1024926,
                "topic": "igwn.gwalert",
                "uuid": "9771ebc2-721a-4b7a-856a-aaeb791f2bdd",
                "title": "S250720bo - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250720bo/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250720bo/view/"
                    },
                    "event": {
                        "far": 2.071606656285901e-05,
                        "time": "2025-07-20T21:51:08.351Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 273.60972833884045,
                        "area_90": 1021.630189633293,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.8175750153880388,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "8f4bede6e0918f9fe0ed2b31fdc7cce1",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.0002880917828723809,
                            "NSBH": 0.000766035581881029,
                            "Terrestrial": 0.9989458726352466
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-07-20T21:56:11Z",
                    "superevent_id": "S250720bo",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-07-20T21:56:11.980215Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-07-20T21:56:11.980234Z",
                "modified": "2025-07-20T21:56:11.988466Z"
            }
        },
        {
            "id": 3214,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5154,
                "topic": "igwn.gwalert",
                "uuid": "1fc39754-0a86-4924-9152-0cf82d1e0a86",
                "title": "S231204be - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231204be/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231204be/view/"
                    },
                    "event": {
                        "far": 5.381660385972303e-06,
                        "time": "2023-12-04T12:30:04.676Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 277.5963731535935,
                        "area_90": 1893.4464635963925,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "4f81888b09c3a302de6b6684c33cb75c",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.007875371458496306,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9921246285415037
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-04T12:35:11Z",
                    "superevent_id": "S231204be",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-04T12:35:13.393268Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-04T12:35:13.393287Z",
                "modified": "2023-12-04T12:35:13.398334Z"
            }
        },
        {
            "id": 7363,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 167534,
                "topic": "igwn.gwalert",
                "uuid": "17e8fec9-75b1-4754-9516-73d7b30f9315",
                "title": "S250117an - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250117an/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250117an/view/"
                    },
                    "event": {
                        "far": 1.19434e-05,
                        "time": "2025-01-17T06:03:05.729Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 2236.71756448776,
                        "area_90": 8211.649024746059,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.03964138160689885,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "d075ac006748ce35539b8c0339f3c1e4",
                        "classification": {
                            "BBH": 0.064350662,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.935649338
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-01-17T06:08:11Z",
                    "superevent_id": "S250117an",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-01-17T06:08:12.792660Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-01-17T06:08:12.792703Z",
                "modified": "2025-01-17T06:08:12.804744Z"
            }
        },
        {
            "id": 10283,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5776366,
                "topic": "igwn.gwalert",
                "uuid": "7624b572-5ad7-4fab-8e7a-052e346ed261",
                "title": "S250906ca - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250906ca/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250906ca/view/"
                    },
                    "event": {
                        "far": 1.097020577430434e-13,
                        "time": "2025-09-06T12:23:59.099Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 147.76813740999108,
                        "area_90": 520.1522366196207,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.05769115389968402,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": true,
                        "skymap_hash": "aa7c41a5d94af41814e71063f9eb999a",
                        "classification": {
                            "BBH": 0.9994132149039674,
                            "BNS": 1.2794338669255935e-31,
                            "NSBH": 0.0005864784298535882,
                            "Terrestrial": 3.0666617900632076e-07
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-09-07T14:52:32Z",
                    "superevent_id": "S250906ca",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-09-07T14:52:33.460285Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-09-07T14:52:33.460308Z",
                "modified": "2025-09-07T14:52:33.469198Z"
            }
        },
        {
            "id": 3217,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5160,
                "topic": "igwn.gwalert",
                "uuid": "c40687f7-cad4-4f31-a166-839539149adf",
                "title": "S231204bz - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231204bz/files/cwb.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231204bz/view/"
                    },
                    "event": {
                        "far": 3.37298e-07,
                        "time": "2023-12-04T16:24:21.408Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 1778.4632342024627,
                        "area_90": 5405.051075159916,
                        "duration": 0.010905,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "c063f364f1e5f7aedc1c75daea7b66c2",
                        "classification": {},
                        "skymap_version": 1,
                        "central_frequency": 58.247757
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-04T16:30:03Z",
                    "superevent_id": "S231204bz",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-04T16:30:04.413561Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-04T16:30:04.413578Z",
                "modified": "2023-12-04T16:30:04.418985Z"
            }
        },
        {
            "id": 7365,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 167543,
                "topic": "igwn.gwalert",
                "uuid": "10e51540-4533-4874-95ed-ebd35dbd0852",
                "title": "S250117at - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250117at/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250117at/view/"
                    },
                    "event": {
                        "far": 8.59013e-06,
                        "time": "2025-01-17T06:36:15.387Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 1229.5651902343595,
                        "area_90": 5275.799853797395,
                        "duration": 0.085178,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "f891e76e644013b41cd7de2d7b00b38d",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 736.214111
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-01-17T06:43:04Z",
                    "superevent_id": "S250117at",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-01-17T06:43:05.855990Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-01-17T06:43:05.856011Z",
                "modified": "2025-01-17T06:43:05.860626Z"
            }
        },
        {
            "id": 3219,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5162,
                "topic": "igwn.gwalert",
                "uuid": "90bf1ef5-385a-4da7-af96-b7dbc59c7dc7",
                "title": "S231204cb - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231204cb/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231204cb/view/"
                    },
                    "event": {
                        "far": 3.909954403901644e-06,
                        "time": "2023-12-04T17:11:39.233Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 425.6792456805387,
                        "area_90": 1738.177139232327,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.003205128205128205,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "a98898df170bd2001d34d41ccc0fcf65",
                        "classification": {
                            "BBH": 0.31918436216926255,
                            "BNS": 1.8553264982315975e-19,
                            "NSBH": 1.5114002705369855e-17,
                            "Terrestrial": 0.6808156378307375
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-04T17:16:39Z",
                    "superevent_id": "S231204cb",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-04T17:16:40.619469Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-04T17:16:40.619487Z",
                "modified": "2023-12-04T17:16:40.624831Z"
            }
        },
        {
            "id": 9316,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 1031869,
                "topic": "igwn.gwalert",
                "uuid": "54474594-1567-46bc-b6f8-840fec40c0c9",
                "title": "S250720br - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250720br/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250720br/view/"
                    },
                    "event": {
                        "far": 1.980307e-05,
                        "time": "2025-07-20T22:28:34.378Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 271.61640593146393,
                        "area_90": 1027.9248919723768,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 7.3833609984697785e-06,
                            "HasMassGap": 0.16705019874131213,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "23a90617714c8322e6144d3fed37fbcd",
                        "classification": {
                            "BBH": 0.033077256713597604,
                            "BNS": 0.0,
                            "NSBH": 0.00057888564863032,
                            "Terrestrial": 0.9663438576377721
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-07-20T22:33:55Z",
                    "superevent_id": "S250720br",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-07-20T22:33:57.264490Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-07-20T22:33:57.264505Z",
                "modified": "2025-07-20T22:33:57.267387Z"
            }
        },
        {
            "id": 7367,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 167593,
                "topic": "igwn.gwalert",
                "uuid": "13a531f9-6fc1-46e6-b381-e5c6861cd5bd",
                "title": "S250117bk - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "gracedb": "https://gracedb.ligo.org/superevents/S250117bk/view/"
                    },
                    "event": {
                        "far": 5.378467611696221e-06,
                        "time": "2025-01-17T09:52:41.754Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 7283.390253142507,
                        "area_90": 22566.927532437858,
                        "duration": 0.25,
                        "pipeline": "MLy",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "efea8bf44c30a284b4999f765bc7297e",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 190.35324222031946
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-01-17T09:58:02Z",
                    "superevent_id": "S250117bk",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-01-17T09:58:03.810718Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-01-17T09:58:03.810736Z",
                "modified": "2025-01-17T09:58:03.820448Z"
            }
        },
        {
            "id": 3222,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5165,
                "topic": "igwn.gwalert",
                "uuid": "ef574827-49eb-4c37-90b2-23403fd5e406",
                "title": "S231204cc - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231204cc/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231204cc/view/"
                    },
                    "event": {
                        "far": 2.218767e-05,
                        "time": "2023-12-04T17:22:55.746Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 495.07833896893703,
                        "area_90": 1674.1809987849754,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.027995702080400905,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "bc8d534bb0c8e97a3d9b3ba197015228",
                        "classification": {
                            "BBH": 0.023365012,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.976634988
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-04T17:28:00Z",
                    "superevent_id": "S231204cc",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-04T17:28:01.917332Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-04T17:28:01.917355Z",
                "modified": "2023-12-04T17:28:01.923213Z"
            }
        },
        {
            "id": 3223,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5166,
                "topic": "igwn.gwalert",
                "uuid": "c73183f1-468b-476c-9a7b-cc58ce020dfb",
                "title": "S231204cd - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231204cd/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231204cd/view/"
                    },
                    "event": {
                        "far": 5.576027957284731e-06,
                        "time": "2023-12-04T17:25:38.316Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1288.9452156330497,
                        "area_90": 6462.561068125986,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.026260429225946468,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "300b91001b6acdb261d3a268c47daf90",
                        "classification": {
                            "BBH": 0.19176293682852324,
                            "BNS": 1.1340611296220423e-15,
                            "NSBH": 8.764550220067724e-14,
                            "Terrestrial": 0.808237063171388
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-04T17:30:33Z",
                    "superevent_id": "S231204cd",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-04T17:30:35.227218Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-04T17:30:35.227234Z",
                "modified": "2023-12-04T17:30:35.232485Z"
            }
        },
        {
            "id": 3225,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5172,
                "topic": "igwn.gwalert",
                "uuid": "b60e42ae-fcea-438d-a743-710fa2ba9717",
                "title": "S231205c - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231205c/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231205c/view/"
                    },
                    "event": {
                        "far": 1.287308542111373e-05,
                        "time": "2023-12-05T00:57:50.155Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 146.9288437647799,
                        "area_90": 481.96437576251265,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.10873561394459229,
                            "HasRemnant": 0.0007029897816598369
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "6051a117f76d3d4ada9d2df03ba08b73",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.000268067708387896,
                            "NSBH": 0.0014150098816515637,
                            "Terrestrial": 0.9983169224099605
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-05T01:02:54Z",
                    "superevent_id": "S231205c",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-05T01:02:55.268301Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-05T01:02:55.268328Z",
                "modified": "2023-12-05T01:02:55.274036Z"
            }
        },
        {
            "id": 7369,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 167607,
                "topic": "igwn.gwalert",
                "uuid": "684ebe06-fee5-41f2-966a-6ae56d82186e",
                "title": "S250117ce - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250117ce/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250117ce/view/"
                    },
                    "event": {
                        "far": 8.19929e-06,
                        "time": "2025-01-17T11:23:56.813Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 3711.3564991237804,
                        "area_90": 11284.30305986414,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.04264138160689884,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "283c3a6568591661ff983f4ebfdd1c9e",
                        "classification": {
                            "BBH": 0.004405102224967816,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9955948977750322
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-01-17T11:30:27Z",
                    "superevent_id": "S250117ce",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-01-17T11:30:28.689302Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-01-17T11:30:28.689323Z",
                "modified": "2025-01-17T11:30:28.699767Z"
            }
        },
        {
            "id": 3227,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5179,
                "topic": "igwn.gwalert",
                "uuid": "6e3b6139-1cda-4b6f-bd2a-5b5bf8c07ed0",
                "title": "S231205h - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231205h/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231205h/view/"
                    },
                    "event": {
                        "far": 1.18187e-05,
                        "time": "2023-12-05T04:00:19.510Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 528.7549964830351,
                        "area_90": 2053.7515498317252,
                        "duration": 0.008089,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "4b38e99047b4ccf5d3f1928c36380abd",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 1413.369751
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-05T04:06:06Z",
                    "superevent_id": "S231205h",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-05T04:06:07.677820Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-05T04:06:07.677836Z",
                "modified": "2023-12-05T04:06:07.682864Z"
            }
        },
        {
            "id": 9318,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 1064194,
                "topic": "igwn.gwalert",
                "uuid": "36b3e061-fa95-45a3-95fa-c0e3471f7096",
                "title": "S250721e - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250721e/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250721e/view/"
                    },
                    "event": {
                        "far": 6.871398385519335e-06,
                        "time": "2025-07-21T02:56:51.777Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 597.3672519790482,
                        "area_90": 2700.0076566443245,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.012110860154338415,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "2b07b2d87e82cbf2fb0a493703f65115",
                        "classification": {
                            "BBH": 0.19632117510945196,
                            "BNS": 1.6218205572133896e-14,
                            "NSBH": 1.1699648929082999e-12,
                            "Terrestrial": 0.8036788248893618
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-07-21T03:01:51Z",
                    "superevent_id": "S250721e",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-07-21T03:01:52.931267Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-07-21T03:01:52.931286Z",
                "modified": "2025-07-21T03:01:52.934694Z"
            }
        },
        {
            "id": 3229,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5181,
                "topic": "igwn.gwalert",
                "uuid": "95ed514f-992c-48df-894b-f36f910a4c5a",
                "title": "S231205v - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231205v/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231205v/view/"
                    },
                    "event": {
                        "far": 2.116413986944711e-05,
                        "time": "2023-12-05T06:36:17.463Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1087.7245641936724,
                        "area_90": 4799.920356962664,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.018157865123382366,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "2e970c11e8fa2d1af5ef4023aa2ca8a1",
                        "classification": {
                            "BBH": 0.032249633821427565,
                            "BNS": 1.940433136929084e-13,
                            "NSBH": 1.4783175454565096e-11,
                            "Terrestrial": 0.9677503661635952
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-05T06:41:13Z",
                    "superevent_id": "S231205v",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-05T06:41:15.203766Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-05T06:41:15.203783Z",
                "modified": "2023-12-05T06:41:15.209236Z"
            }
        },
        {
            "id": 7371,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 167614,
                "topic": "igwn.gwalert",
                "uuid": "04aaa8ce-144b-4a48-8d4f-36640e694fd5",
                "title": "S250117ci - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250117ci/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250117ci/view/"
                    },
                    "event": {
                        "far": 1.12442840216568e-05,
                        "time": "2025-01-17T11:43:28.645Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 913.7809562236581,
                        "area_90": 4301.379931707231,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.03964138160689885,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "2c6d7f94a3d95e46c6f960f2e58af89a",
                        "classification": {
                            "BBH": 0.09937718084450471,
                            "BNS": 3.8177073622664236e-13,
                            "NSBH": 2.3961097026058532e-11,
                            "Terrestrial": 0.9006228191311524
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-01-17T11:48:26Z",
                    "superevent_id": "S250117ci",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-01-17T11:48:28.041703Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-01-17T11:48:28.041724Z",
                "modified": "2025-01-17T11:48:28.050164Z"
            }
        },
        {
            "id": 3231,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5183,
                "topic": "igwn.gwalert",
                "uuid": "12406af6-28e3-4e9f-bc5f-8107fc61500f",
                "title": "S231205x - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231205x/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231205x/view/"
                    },
                    "event": {
                        "far": 4.89357611847938e-06,
                        "time": "2023-12-05T06:58:49.163Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1689.7079312213816,
                        "area_90": 6556.561956389637,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.04264138160689884,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "2778c5fba44678e94eda4657cc68dac8",
                        "classification": {
                            "BBH": 0.2632422527339422,
                            "BNS": 4.615582889592433e-14,
                            "NSBH": 3.5036023468331954e-12,
                            "Terrestrial": 0.7367577472625081
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-05T07:03:49Z",
                    "superevent_id": "S231205x",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-05T07:03:50.784609Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-05T07:03:50.784627Z",
                "modified": "2023-12-05T07:03:50.789842Z"
            }
        },
        {
            "id": 10736,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5784293,
                "topic": "igwn.gwalert",
                "uuid": "717565a9-0169-4aa2-aa83-27702daa775f",
                "title": "S251003v - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "gracedb": "https://gracedb.ligo.org/superevents/S251003v/view/"
                    },
                    "event": {
                        "far": 1.524407717047365e-05,
                        "time": "2025-10-03T07:53:41.191Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 5128.08417224023,
                        "area_90": 20618.926981902736,
                        "duration": 0.28125,
                        "pipeline": "MLy",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "cf4390b3366c434c988b4bd1e169ac03",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 72.0
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-10-03T07:58:56Z",
                    "superevent_id": "S251003v",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-10-03T07:58:56.876010Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-10-03T07:58:56.876035Z",
                "modified": "2025-10-03T07:58:56.889839Z"
            }
        },
        {
            "id": 3233,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5185,
                "topic": "igwn.gwalert",
                "uuid": "238f5325-7f96-4cb9-b7e8-6a3deccdf47f",
                "title": "S231205ac - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231205ac/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231205ac/view/"
                    },
                    "event": {
                        "far": 3.165848966091289e-06,
                        "time": "2023-12-05T10:39:21.527Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 10189.024852863568,
                        "area_90": 30550.288685686482,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "df657e658bfa7f075a26455f401f5f48",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.03664678811930093,
                            "NSBH": 0.00023024585242734818,
                            "Terrestrial": 0.9631229660282717
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-05T10:44:20Z",
                    "superevent_id": "S231205ac",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-05T10:44:22.208885Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-05T10:44:22.208902Z",
                "modified": "2023-12-05T10:44:22.214410Z"
            }
        },
        {
            "id": 7373,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 167664,
                "topic": "igwn.gwalert",
                "uuid": "ed5506b9-815a-43ec-b3c9-638fa6549a96",
                "title": "S250117df - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250117df/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250117df/view/"
                    },
                    "event": {
                        "far": 4.5596e-06,
                        "time": "2025-01-17T15:23:20.578Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 694.9351382348464,
                        "area_90": 2747.847394421361,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "c0a85e4974f55fa57b593b51fb61ba28",
                        "classification": {
                            "BBH": 0.005311106515957009,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.994688893484043
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-01-17T15:29:14Z",
                    "superevent_id": "S250117df",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-01-17T15:29:14.850484Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-01-17T15:29:14.850506Z",
                "modified": "2025-01-17T15:29:14.856157Z"
            }
        },
        {
            "id": 3235,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5187,
                "topic": "igwn.gwalert",
                "uuid": "00763508-847a-4732-b288-2b1bbe7eeba5",
                "title": "S231205ah - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231205ah/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231205ah/view/"
                    },
                    "event": {
                        "far": 1.203430383611703e-05,
                        "time": "2023-12-05T11:52:34.165Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 7878.449447597224,
                        "area_90": 22798.572578516138,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.559140945521323,
                            "HasRemnant": 0.5848549798868441
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "293842ca760ae89e1e4c1aa6f609d185",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.008253591658996468,
                            "NSBH": 0.0012662260553684384,
                            "Terrestrial": 0.9904801822856351
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-05T11:57:32Z",
                    "superevent_id": "S231205ah",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-05T11:57:33.563941Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-05T11:57:33.563958Z",
                "modified": "2023-12-05T11:57:33.569326Z"
            }
        },
        {
            "id": 9320,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 1072897,
                "topic": "igwn.gwalert",
                "uuid": "1a367d71-bc1f-48e0-a28e-db6282322355",
                "title": "S250721l - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250721l/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250721l/view/"
                    },
                    "event": {
                        "far": 1.107145638900923e-05,
                        "time": "2025-07-21T03:32:28.211Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 250.37178553705627,
                        "area_90": 1102.8318498074734,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.06959815184815185,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "7b8dd8d6badfdc6fb39c0ca3f7434843",
                        "classification": {
                            "BBH": 0.11352058370279723,
                            "BNS": 3.484401764431534e-17,
                            "NSBH": 2.1462033889871154e-15,
                            "Terrestrial": 0.8864794162972006
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-07-21T03:37:27Z",
                    "superevent_id": "S250721l",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-07-21T03:37:27.970555Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-07-21T03:37:27.970574Z",
                "modified": "2025-07-21T03:37:27.976793Z"
            }
        },
        {
            "id": 3237,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5198,
                "topic": "igwn.gwalert",
                "uuid": "23809dd6-846d-4a77-a330-9c94a8f73bdf",
                "title": "S231206c - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231206c/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231206c/view/"
                    },
                    "event": {
                        "far": 6.66549075111645e-06,
                        "time": "2023-12-06T01:06:29.190Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1404.3480918495852,
                        "area_90": 5390.783083191326,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.04264138160689884,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "08723fdcddca3e04093c953edd7a5317",
                        "classification": {
                            "BBH": 0.1800171642082051,
                            "BNS": 5.087955439733444e-16,
                            "NSBH": 3.675293427840664e-14,
                            "Terrestrial": 0.8199828357917577
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-06T01:11:30Z",
                    "superevent_id": "S231206c",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-06T01:11:32.053382Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-06T01:11:32.053400Z",
                "modified": "2023-12-06T01:11:32.059393Z"
            }
        },
        {
            "id": 7375,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 167678,
                "topic": "igwn.gwalert",
                "uuid": "e5f412b4-d3f0-4ebd-b983-d2062937f0da",
                "title": "S250117do - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250117do/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250117do/view/"
                    },
                    "event": {
                        "far": 9.216291382592708e-06,
                        "time": "2025-01-17T16:26:50.211Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 418.12560287363823,
                        "area_90": 1357.7672945403651,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.8115940864420861,
                            "HasMassGap": 0.1581388710475398,
                            "HasRemnant": 0.1767876510102314
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "5e6e62a63c9fc033ede6b5064ffeedb4",
                        "classification": {
                            "BBH": 0.0008471132944712284,
                            "BNS": 0.0,
                            "NSBH": 0.003334740702277699,
                            "Terrestrial": 0.995818146003251
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-01-17T16:31:56Z",
                    "superevent_id": "S250117do",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-01-17T16:31:56.437642Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-01-17T16:31:56.437660Z",
                "modified": "2025-01-17T16:31:56.446893Z"
            }
        },
        {
            "id": 3239,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5206,
                "topic": "igwn.gwalert",
                "uuid": "54f743d3-8a93-424b-bad2-27c6c3abfd07",
                "title": "S231206y - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231206y/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231206y/view/"
                    },
                    "event": {
                        "far": 1.76599e-06,
                        "time": "2023-12-06T06:41:29.177Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 494.3439570293773,
                        "area_90": 1916.1073920170938,
                        "duration": 0.087252,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "170d648b6cc216555314de67a8014571",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 1192.840576
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-06T06:47:26Z",
                    "superevent_id": "S231206y",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-06T06:47:27.726465Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-06T06:47:27.726491Z",
                "modified": "2023-12-06T06:47:27.731503Z"
            }
        },
        {
            "id": 10286,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5776426,
                "topic": "igwn.gwalert",
                "uuid": "d34d954d-1269-464c-80fe-cc9b80308816",
                "title": "S250907ds - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250907ds/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250907ds/view/"
                    },
                    "event": {
                        "far": 1.014475e-05,
                        "time": "2025-09-07T22:01:19.405Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 263.01364606804947,
                        "area_90": 970.0136304528063,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.02807142857142857,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "a07422ac75463f4b1c2a695a4bcfccd8",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.0013899759201825089,
                            "NSBH": 6.093840151113296e-05,
                            "Terrestrial": 0.9985490856783064
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-09-07T22:06:36Z",
                    "superevent_id": "S250907ds",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-09-07T22:06:37.081852Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-09-07T22:06:37.081881Z",
                "modified": "2025-09-07T22:06:37.085589Z"
            }
        },
        {
            "id": 3241,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5208,
                "topic": "igwn.gwalert",
                "uuid": "925a908a-20d9-4fac-a838-24e31996c859",
                "title": "S231206aa - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231206aa/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231206aa/view/"
                    },
                    "event": {
                        "far": 7.436069618638502e-06,
                        "time": "2023-12-06T07:16:40.836Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 759.560748916106,
                        "area_90": 3412.567961428605,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "c0227d943c9007eda5a4a19d38926c80",
                        "classification": {
                            "BBH": 0.15838834405272345,
                            "BNS": 1.0291226877349916e-14,
                            "NSBH": 2.8015352555534292e-11,
                            "Terrestrial": 0.8416116559192509
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-06T07:21:40Z",
                    "superevent_id": "S231206aa",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-06T07:21:41.675172Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-06T07:21:41.675191Z",
                "modified": "2023-12-06T07:21:41.686935Z"
            }
        },
        {
            "id": 7377,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 167685,
                "topic": "igwn.gwalert",
                "uuid": "8509fe01-8d38-4fa1-a068-f519f8279759",
                "title": "S250117ds - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250117ds/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250117ds/view/"
                    },
                    "event": {
                        "far": 2.208302e-05,
                        "time": "2025-01-17T16:53:57.421Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 518.3687376235471,
                        "area_90": 2167.056191935233,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "2826e1e7490456f0862e0ddeb3691081",
                        "classification": {
                            "BBH": 0.029128989,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.970871011
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-01-17T16:59:00Z",
                    "superevent_id": "S250117ds",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-01-17T16:59:01.438321Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-01-17T16:59:01.438342Z",
                "modified": "2025-01-17T16:59:01.442698Z"
            }
        },
        {
            "id": 3243,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5217,
                "topic": "igwn.gwalert",
                "uuid": "7c697128-71ae-4890-a223-1a8060ec5c2f",
                "title": "S231206bf - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231206bf/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231206bf/view/"
                    },
                    "event": {
                        "far": 4.47829e-06,
                        "time": "2023-12-06T13:52:29.516Z",
                        "group": "Burst",
                        "search": "BBH",
                        "area_50": 4465.88148616862,
                        "area_90": 13279.304054531085,
                        "duration": 0.041798,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "f3df07b75a821af85a056c13b2e35026",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 22.554409
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-06T13:58:40Z",
                    "superevent_id": "S231206bf",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-06T13:58:41.750926Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-06T13:58:41.750951Z",
                "modified": "2023-12-06T13:58:41.758762Z"
            }
        },
        {
            "id": 10954,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5787741,
                "topic": "igwn.gwalert",
                "uuid": "9e67855b-3e64-41f5-a578-9dc7a1bea40f",
                "title": "S251013bn - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S251013bn/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S251013bn/view/"
                    },
                    "event": {
                        "far": 2.70023e-06,
                        "time": "2025-10-13T09:58:29.453Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 1943.8040823090623,
                        "area_90": 6042.074951875191,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005275362318840579,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "5956fcc04a0960d084ac70316f20577c",
                        "classification": {
                            "BBH": 0.014299697071590067,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9857003029284099
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-10-13T10:04:09Z",
                    "superevent_id": "S251013bn",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-10-13T10:04:09.852300Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-10-13T10:04:09.852312Z",
                "modified": "2025-10-13T10:04:09.859310Z"
            }
        },
        {
            "id": 3245,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5227,
                "topic": "igwn.gwalert",
                "uuid": "8c3618c2-14b4-42dc-b1ec-e474a1e6a433",
                "title": "S231206ca - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231206ca/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231206ca/view/"
                    },
                    "event": {
                        "far": 3.167545842243851e-10,
                        "time": "2023-12-06T23:31:34.528Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 550.5766312585255,
                        "area_90": 1985.768764569621,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": true,
                        "skymap_hash": "194ea3b183ed52a4c908367ad22e9cf2",
                        "classification": {
                            "BBH": 0.9999815957562007,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 1.8404243799285958e-05
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-06T23:36:50Z",
                    "superevent_id": "S231206ca",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-06T23:36:52.157346Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-06T23:36:52.157365Z",
                "modified": "2023-12-06T23:36:52.162602Z"
            }
        },
        {
            "id": 7379,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 167720,
                "topic": "igwn.gwalert",
                "uuid": "51544c0f-1056-49eb-b490-681c012ab3db",
                "title": "S250117eq - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250117eq/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250117eq/view/"
                    },
                    "event": {
                        "far": 1.29837e-05,
                        "time": "2025-01-17T18:54:39.925Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 62.94702339083753,
                        "area_90": 256.82385543461703,
                        "duration": 0.011146,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "2f6210d59ae76eb2b47c0b389f2ecf69",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 1861.43689
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-01-17T19:00:29Z",
                    "superevent_id": "S250117eq",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-01-17T19:00:30.064944Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-01-17T19:00:30.064971Z",
                "modified": "2025-01-17T19:00:30.070373Z"
            }
        },
        {
            "id": 3247,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5229,
                "topic": "igwn.gwalert",
                "uuid": "3ee10a1c-96d6-4105-84d9-2f771a6f00c3",
                "title": "S231206cc - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231206cc/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231206cc/view/"
                    },
                    "event": {
                        "far": 1.931982867404817e-35,
                        "time": "2023-12-06T23:39:01.498Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 117.86830129934324,
                        "area_90": 445.0354553732212,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": true,
                        "skymap_hash": "aca7076f08449092ea3e6296a6f3d13d",
                        "classification": {
                            "BBH": 1.0,
                            "BNS": 2.449075696447941e-95,
                            "NSBH": 2.5486158233382465e-93,
                            "Terrestrial": 0.0
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-06T23:44:09Z",
                    "superevent_id": "S231206cc",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-06T23:44:11.140140Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-06T23:44:11.140169Z",
                "modified": "2023-12-06T23:44:11.145832Z"
            }
        },
        {
            "id": 9323,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 1074376,
                "topic": "igwn.gwalert",
                "uuid": "ad1d9b89-1024-4438-8a15-2562f9fe521a",
                "title": "S250721m - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250721m/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250721m/view/"
                    },
                    "event": {
                        "far": 1.12492e-05,
                        "time": "2025-07-21T03:38:29.380Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 753.8955168109308,
                        "area_90": 2932.491996367817,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.08410804125632515,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "619705fe3b4555254713e34e09c1c50f",
                        "classification": {
                            "BBH": 0.06874285541396243,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9312571445860376
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-07-21T03:43:28Z",
                    "superevent_id": "S250721m",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-07-21T03:43:29.541080Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-07-21T03:43:29.541100Z",
                "modified": "2025-07-21T03:43:29.544362Z"
            }
        },
        {
            "id": 3250,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5232,
                "topic": "igwn.gwalert",
                "uuid": "826e7600-2812-485b-b800-c4b939eb8cb6",
                "title": "S231207a - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231207a/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231207a/view/"
                    },
                    "event": {
                        "far": 8.27988e-07,
                        "time": "2023-12-07T00:07:31.287Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 100.71523742534005,
                        "area_90": 312.2172360185541,
                        "duration": 0.005002,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "cde4c1aba5f85f55243a65f80a901411",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 331.904724
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-07T00:13:44Z",
                    "superevent_id": "S231207a",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-07T00:13:45.821841Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-07T00:13:45.821863Z",
                "modified": "2023-12-07T00:13:45.827420Z"
            }
        },
        {
            "id": 9324,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 1075231,
                "topic": "igwn.gwalert",
                "uuid": "057503bc-df34-47cf-83e0-5e0701c04aa2",
                "title": "S250721n - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250721n/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250721n/view/"
                    },
                    "event": {
                        "far": 8.73416e-06,
                        "time": "2025-07-21T03:40:59.652Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 686.5422017827347,
                        "area_90": 2183.842064839456,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "4a0af9c326d668b5fd85596dbd447acc",
                        "classification": {
                            "BBH": 0.0021083636441425746,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9978916363558574
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-07-21T03:46:58Z",
                    "superevent_id": "S250721n",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-07-21T03:46:58.959116Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-07-21T03:46:58.959132Z",
                "modified": "2025-07-21T03:46:58.962495Z"
            }
        },
        {
            "id": 3253,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5237,
                "topic": "igwn.gwalert",
                "uuid": "097d276d-9322-4e22-af19-1b4af41321c6",
                "title": "S231207f - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S231207f/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S231207f/view/"
                    },
                    "event": {
                        "far": 1.215070585084741e-05,
                        "time": "2023-12-07T01:18:35.293Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 610.586126891124,
                        "area_90": 1877.2900609260778,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.9352919367415086,
                            "HasRemnant": 0.4970928385592842
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "2950f057f2a79098f9858bbee9452b28",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.0006419354472531963,
                            "NSBH": 0.0013429341322450986,
                            "Terrestrial": 0.9980151304205017
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-12-07T01:23:41Z",
                    "superevent_id": "S231207f",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-12-07T01:23:42.740688Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-12-07T01:23:42.740706Z",
                "modified": "2023-12-07T01:23:42.745900Z"
            }
        },
        {
            "id": 10288,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5776432,
                "topic": "igwn.gwalert",
                "uuid": "2283fd21-3020-47a2-a89b-27d092d54308",
                "title": "S250907dt - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250907dt/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250907dt/view/"
                    },
                    "event": {
                        "far": 1.75962e-05,
                        "time": "2025-09-07T22:16:12.161Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 370.9677911833358,
                        "area_90": 1340.3519514022337,
                        "duration": 0.004684,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "c632388b5747b53c4c7ccc062825a60a",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 210.708725
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-09-07T22:23:47Z",
                    "superevent_id": "S250907dt",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-09-07T22:23:47.939647Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-09-07T22:23:47.939668Z",
                "modified": "2025-09-07T22:23:47.943619Z"
            }
        }
    ]
}