GET /api/v0/nonlocalizedeventsequence/?format=api&offset=1900&ordering=-message
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=2000&ordering=-message",
    "previous": "https://hermes.lco.global/api/v0/nonlocalizedeventsequence/?format=api&limit=100&offset=1800&ordering=-message",
    "results": [
        {
            "id": 1901,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3322,
                "topic": "igwn.gwalert",
                "uuid": "57ff3745-8b70-4fe0-82c1-632c9501984b",
                "title": "S230923bt - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230923bt/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230923bt/view/"
                    },
                    "event": {
                        "far": 1.016509e-05,
                        "time": "2023-09-23T22:07:25.304Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 725.5693562850539,
                        "area_90": 2577.470784443494,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "e5eee9d541eacf44e26acf4a3589e5a5",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.001204987,
                            "NSBH": 2.003e-06,
                            "Terrestrial": 0.99879301
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-23T22:07:57Z",
                    "superevent_id": "S230923bt",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-23T22:07:59.356560Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-23T22:07:59.356620Z",
                "modified": "2023-09-23T22:07:59.363546Z"
            }
        },
        {
            "id": 1902,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3323,
                "topic": "igwn.gwalert",
                "uuid": "8698be4a-fea1-474e-917f-c62a5f28a95f",
                "title": "S230923bt - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230923bt/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230923bt/view/"
                    },
                    "event": {
                        "far": 1.016509e-05,
                        "time": "2023-09-23T22:07:25.304Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 725.5693562850539,
                        "area_90": 2577.470784443494,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "e5eee9d541eacf44e26acf4a3589e5a5",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.001204987,
                            "NSBH": 2.003e-06,
                            "Terrestrial": 0.99879301
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-23T22:12:31Z",
                    "superevent_id": "S230923bt",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-23T22:12:31.956810Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-23T22:12:31.956837Z",
                "modified": "2023-09-23T22:12:31.962952Z"
            }
        },
        {
            "id": 1903,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3324,
                "topic": "igwn.gwalert",
                "uuid": "82e979dc-1930-4760-8a56-cf8fa1e4bf9a",
                "title": "S230924i - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230924i/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230924i/view/"
                    },
                    "event": {
                        "far": 2.31284e-05,
                        "time": "2023-09-24T01:46:23.594Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 804.043312112298,
                        "area_90": 3052.510987633015,
                        "duration": 0.009991,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "3b0cc1ed6d7772bb33de11e73346290c",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 950.416382
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-24T01:47:43Z",
                    "superevent_id": "S230924i",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-24T01:47:44.795650Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-24T01:47:44.795679Z",
                "modified": "2023-09-24T01:47:44.803175Z"
            }
        },
        {
            "id": 1904,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3325,
                "topic": "igwn.gwalert",
                "uuid": "9cc5e185-5eef-4c3c-989c-e02e5165e65b",
                "title": "S230924i - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230924i/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230924i/view/"
                    },
                    "event": {
                        "far": 2.31284e-05,
                        "time": "2023-09-24T01:46:23.594Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 804.043312112298,
                        "area_90": 3052.510987633015,
                        "duration": 0.009991,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "3b0cc1ed6d7772bb33de11e73346290c",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 950.416382
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-24T01:52:16Z",
                    "superevent_id": "S230924i",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-24T01:52:17.426060Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-24T01:52:17.426143Z",
                "modified": "2023-09-24T01:52:17.432834Z"
            }
        },
        {
            "id": 1905,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3326,
                "topic": "igwn.gwalert",
                "uuid": "a4ae763b-8415-45d3-918f-c72926202c1f",
                "title": "S230924k - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230924k/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230924k/view/"
                    },
                    "event": {
                        "far": 2.101419e-06,
                        "time": "2023-09-24T02:44:24.401Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 928.8882418374592,
                        "area_90": 3425.9966597519838,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.026260429225946468,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "21eda5ed6b703561b9731aad15045b1a",
                        "classification": {
                            "BBH": 0.191697159,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.808302841
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-24T02:44:54Z",
                    "superevent_id": "S230924k",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-24T02:44:55.499516Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-24T02:44:55.499548Z",
                "modified": "2023-09-24T02:44:55.506267Z"
            }
        },
        {
            "id": 1906,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3327,
                "topic": "igwn.gwalert",
                "uuid": "58a10baa-5897-4187-9d43-cd6e1c2422c1",
                "title": "S230924k - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230924k/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230924k/view/"
                    },
                    "event": {
                        "far": 2.101419e-06,
                        "time": "2023-09-24T02:44:24.401Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 928.8882418374592,
                        "area_90": 3425.9966597519838,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.026260429225946468,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "21eda5ed6b703561b9731aad15045b1a",
                        "classification": {
                            "BBH": 0.191697159,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.808302841
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-24T02:49:28Z",
                    "superevent_id": "S230924k",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-24T02:49:30.108532Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-24T02:49:30.108558Z",
                "modified": "2023-09-24T02:49:30.115303Z"
            }
        },
        {
            "id": 1907,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3328,
                "topic": "igwn.gwalert",
                "uuid": "28c19d8e-ac78-441f-b325-7857df8175ac",
                "title": "S230924v - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230924v/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230924v/view/"
                    },
                    "event": {
                        "far": 5.312700977810891e-06,
                        "time": "2023-09-24T05:13:10.580Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 4033.6452588848692,
                        "area_90": 17584.880454464368,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.6202952293998016,
                            "HasRemnant": 0.052473963983300405
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "306ee5bbeabea40a3604cf60ef90ccae",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.23711384192290608,
                            "NSBH": 0.19989939295126324,
                            "Terrestrial": 0.5629867651258307
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-24T05:13:36Z",
                    "superevent_id": "S230924v",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-24T05:13:38.537810Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-24T05:13:38.537833Z",
                "modified": "2023-09-24T05:13:38.544897Z"
            }
        },
        {
            "id": 1908,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3329,
                "topic": "igwn.gwalert",
                "uuid": "a4e70a54-1757-4785-a5bc-6469e8b9516d",
                "title": "S230924w - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230924w/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230924w/view/"
                    },
                    "event": {
                        "far": 6.05683e-06,
                        "time": "2023-09-24T05:13:42.578Z",
                        "group": "Burst",
                        "search": "BBH",
                        "area_50": 693.256550944424,
                        "area_90": 2313.9325798471878,
                        "duration": 0.005076,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "235bb02ebd1fe909281fdebf1b64b9b6",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 188.125732
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-24T05:14:58Z",
                    "superevent_id": "S230924w",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-24T05:14:59.681935Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-24T05:14:59.681962Z",
                "modified": "2023-09-24T05:14:59.689212Z"
            }
        },
        {
            "id": 1909,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3330,
                "topic": "igwn.gwalert",
                "uuid": "613bbc0c-b3a2-4efb-a9cf-6e5085f4e9aa",
                "title": "S230924v - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230924v/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230924v/view/"
                    },
                    "event": {
                        "far": 5.312700977810891e-06,
                        "time": "2023-09-24T05:13:10.580Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 4033.6452588848692,
                        "area_90": 17584.880454464368,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.6202952293998016,
                            "HasRemnant": 0.052473963983300405
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "306ee5bbeabea40a3604cf60ef90ccae",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.23711384192290608,
                            "NSBH": 0.19989939295126324,
                            "Terrestrial": 0.5629867651258307
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-24T05:18:11Z",
                    "superevent_id": "S230924v",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-24T05:18:12.190527Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-24T05:18:12.190561Z",
                "modified": "2023-09-24T05:18:12.196642Z"
            }
        },
        {
            "id": 1910,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3331,
                "topic": "igwn.gwalert",
                "uuid": "aa12708d-fd7c-4b44-87ed-0297b7121886",
                "title": "S230924w - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230924w/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230924w/view/"
                    },
                    "event": {
                        "far": 6.05683e-06,
                        "time": "2023-09-24T05:13:42.578Z",
                        "group": "Burst",
                        "search": "BBH",
                        "area_50": 693.256550944424,
                        "area_90": 2313.9325798471878,
                        "duration": 0.005076,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "235bb02ebd1fe909281fdebf1b64b9b6",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 188.125732
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-24T05:19:32Z",
                    "superevent_id": "S230924w",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-24T05:19:33.329229Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-24T05:19:33.329254Z",
                "modified": "2023-09-24T05:19:33.335494Z"
            }
        },
        {
            "id": 1911,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3332,
                "topic": "igwn.gwalert",
                "uuid": "c9160520-d46b-462a-b9fa-906bf181dc45",
                "title": "S230924ah - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230924ah/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230924ah/view/"
                    },
                    "event": {
                        "far": 1.53913479152834e-05,
                        "time": "2023-09-24T09:44:34.067Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 3910.269093038827,
                        "area_90": 16685.157666797997,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 0.9093170426111269,
                            "HasMassGap": 0.005,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "603a2a5194c2883c65ff554e7514c5d5",
                        "classification": {
                            "BBH": 0.06433932353322329,
                            "BNS": 0.0,
                            "NSBH": 0.1257416727123268,
                            "Terrestrial": 0.8099190037544499
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-24T09:44:57Z",
                    "superevent_id": "S230924ah",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-24T09:44:58.829672Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-24T09:44:58.829718Z",
                "modified": "2023-09-24T09:44:58.838095Z"
            }
        },
        {
            "id": 1912,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3333,
                "topic": "igwn.gwalert",
                "uuid": "09ae8310-338e-49bb-bb5a-a147db44cc1c",
                "title": "S230924ah - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230924ah/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230924ah/view/"
                    },
                    "event": {
                        "far": 1.53913479152834e-05,
                        "time": "2023-09-24T09:44:34.067Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 3910.269093038827,
                        "area_90": 16685.157666797997,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 0.9093170426111269,
                            "HasMassGap": 0.005,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "603a2a5194c2883c65ff554e7514c5d5",
                        "classification": {
                            "BBH": 0.06433932353322329,
                            "BNS": 0.0,
                            "NSBH": 0.1257416727123268,
                            "Terrestrial": 0.8099190037544499
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-24T09:49:34Z",
                    "superevent_id": "S230924ah",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-24T09:49:35.375996Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-24T09:49:35.376023Z",
                "modified": "2023-09-24T09:49:35.382771Z"
            }
        },
        {
            "id": 1913,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3335,
                "topic": "igwn.gwalert",
                "uuid": "57b7f85c-b261-4860-a41f-e91087525c98",
                "title": "S230924ai - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230924ai/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230924ai/view/"
                    },
                    "event": {
                        "far": 2.304021472809836e-05,
                        "time": "2023-09-24T10:11:09.793Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1137.2428892611315,
                        "area_90": 4847.760094739701,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 0.8523861969823222,
                            "HasMassGap": 0.017333333333333333,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "268a8f16d61734489d52f837deab0770",
                        "classification": {
                            "BBH": 0.015572713162505629,
                            "BNS": 0.0,
                            "NSBH": 0.05737557995868372,
                            "Terrestrial": 0.9270517068788107
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-24T10:11:32Z",
                    "superevent_id": "S230924ai",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-24T10:11:34.116454Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-24T10:11:34.116483Z",
                "modified": "2023-09-24T10:11:34.125055Z"
            }
        },
        {
            "id": 1914,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3336,
                "topic": "igwn.gwalert",
                "uuid": "37b3fd40-2093-46d2-9ee1-3f189b997eb1",
                "title": "S230924ai - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230924ai/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230924ai/view/"
                    },
                    "event": {
                        "far": 2.304021472809836e-05,
                        "time": "2023-09-24T10:11:09.793Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1137.2428892611315,
                        "area_90": 4847.760094739701,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 0.8523861969823222,
                            "HasMassGap": 0.017333333333333333,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "268a8f16d61734489d52f837deab0770",
                        "classification": {
                            "BBH": 0.015572713162505629,
                            "BNS": 0.0,
                            "NSBH": 0.05737557995868372,
                            "Terrestrial": 0.9270517068788107
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-24T10:16:06Z",
                    "superevent_id": "S230924ai",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-24T10:16:07.656686Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-24T10:16:07.656716Z",
                "modified": "2023-09-24T10:16:07.663134Z"
            }
        },
        {
            "id": 1915,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3337,
                "topic": "igwn.gwalert",
                "uuid": "1a78948c-b4b0-4eab-8884-93111f364282",
                "title": "S230924an - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230924an/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230924an/view/"
                    },
                    "event": {
                        "far": 3.816654547961207e-09,
                        "time": "2023-09-24T12:44:53.841Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 322.1838480554367,
                        "area_90": 1484.0809881446457,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": true,
                        "skymap_hash": "9893997bb2fedf55936efdf59f393a7d",
                        "classification": {
                            "BBH": 0.9864777772375146,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.01352222276248538
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-24T12:45:20Z",
                    "superevent_id": "S230924an",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-24T12:45:21.536714Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-24T12:45:21.536741Z",
                "modified": "2023-09-24T12:45:21.544302Z"
            }
        },
        {
            "id": 1916,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3338,
                "topic": "igwn.gwalert",
                "uuid": "dd381be2-e2d0-4773-83b8-09704b89268d",
                "title": "S230924an - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230924an/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230924an/view/"
                    },
                    "event": {
                        "far": 3.167545842243851e-10,
                        "time": "2023-09-24T12:44:53.840Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 250.68652065401042,
                        "area_90": 1149.6224705279958,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": true,
                        "skymap_hash": "b811f53788052b261544f6db67625f22",
                        "classification": {
                            "BBH": 0.9999806065524762,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 1.9393447523774476e-05
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-24T12:49:58Z",
                    "superevent_id": "S230924an",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-24T12:49:59.029502Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-24T12:49:59.029528Z",
                "modified": "2023-09-24T12:49:59.035952Z"
            }
        },
        {
            "id": 1917,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3339,
                "topic": "igwn.gwalert",
                "uuid": "c8c9d11a-ae1c-43f4-8930-53a00709f315",
                "title": "S230924ao - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230924ao/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230924ao/view/"
                    },
                    "event": {
                        "far": 2.678436203495949e-06,
                        "time": "2023-09-24T13:04:17.031Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 898.2540237872516,
                        "area_90": 3379.835509265369,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 0.15499773530635652,
                            "HasMassGap": 0.05120167754950364,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "1ba6423ea621f6f4349dac6389285bcd",
                        "classification": {
                            "BBH": 0.0950306401982491,
                            "BNS": 0.0,
                            "NSBH": 0.06595126341674325,
                            "Terrestrial": 0.8390180963850077
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-24T13:04:40Z",
                    "superevent_id": "S230924ao",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-24T13:04:41.735786Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-24T13:04:41.735811Z",
                "modified": "2023-09-24T13:04:41.743248Z"
            }
        },
        {
            "id": 1918,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3340,
                "topic": "igwn.gwalert",
                "uuid": "6549887a-29e2-4dee-9f35-b34bde951239",
                "title": "S230924ao - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230924ao/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230924ao/view/"
                    },
                    "event": {
                        "far": 2.678436203495949e-06,
                        "time": "2023-09-24T13:04:17.031Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 898.2540237872516,
                        "area_90": 3379.835509265369,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 0.15499773530635652,
                            "HasMassGap": 0.05120167754950364,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "1ba6423ea621f6f4349dac6389285bcd",
                        "classification": {
                            "BBH": 0.0950306401982491,
                            "BNS": 0.0,
                            "NSBH": 0.06595126341674325,
                            "Terrestrial": 0.8390180963850077
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-24T13:09:14Z",
                    "superevent_id": "S230924ao",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-24T13:09:16.300072Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-24T13:09:16.300099Z",
                "modified": "2023-09-24T13:09:16.306696Z"
            }
        },
        {
            "id": 1919,
            "sequence_number": 3,
            "sequence_type": "INITIAL",
            "message": {
                "id": 3341,
                "topic": "igwn.gwalert",
                "uuid": "86d69975-63fb-465e-9b3a-1438acd3b215",
                "title": "S230924an - INITIAL",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230924an/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230924an/view/"
                    },
                    "event": {
                        "far": 3.167545842243851e-10,
                        "time": "2023-09-24T12:44:53.840Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 250.68652065401042,
                        "area_90": 1149.6224705279958,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": true,
                        "skymap_hash": "b811f53788052b261544f6db67625f22",
                        "classification": {
                            "BBH": 0.9999806065524762,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 1.9393447523774476e-05
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "INITIAL",
                    "sequence_num": 3,
                    "time_created": "2023-09-24T13:24:23Z",
                    "superevent_id": "S230924an",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-24T13:24:24.016500Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-24T13:24:24.016522Z",
                "modified": "2023-09-24T13:24:24.023079Z"
            }
        },
        {
            "id": 1920,
            "sequence_number": 4,
            "sequence_type": "UPDATE",
            "message": {
                "id": 3344,
                "topic": "igwn.gwalert",
                "uuid": "f14305d9-1ded-4e50-a0df-8b554e6efecf",
                "title": "S230924an - UPDATE",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230924an/files/bayestar.multiorder.fits,2",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230924an/view/"
                    },
                    "event": {
                        "far": 3.167545842243851e-10,
                        "time": "2023-09-24T12:44:53.840Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 238.77904206257702,
                        "area_90": 835.307000396414,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": true,
                        "skymap_hash": "dc2308b5a1c3a40837b7b19a15275768",
                        "classification": {
                            "BBH": 0.9999806065524762,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 1.9393447523774476e-05
                        },
                        "skymap_version": 2,
                        "central_frequency": null
                    },
                    "alert_type": "UPDATE",
                    "sequence_num": 4,
                    "time_created": "2023-09-24T18:17:42Z",
                    "superevent_id": "S230924an",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-24T18:17:43.468314Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-24T18:17:43.468342Z",
                "modified": "2023-09-24T18:17:43.475421Z"
            }
        },
        {
            "id": 1921,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3347,
                "topic": "igwn.gwalert",
                "uuid": "23b54e8d-215b-4577-8597-5b35626f583b",
                "title": "S230924bl - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230924bl/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230924bl/view/"
                    },
                    "event": {
                        "far": 2.241139191028196e-05,
                        "time": "2023-09-24T23:29:19.080Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1873.3034161113246,
                        "area_90": 9480.661016305343,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.030967460056695685,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "5c589cf74216ed2d2f953caabe710273",
                        "classification": {
                            "BBH": 0.0033776753008507967,
                            "BNS": 0.00024610962323320696,
                            "NSBH": 0.05315170625276986,
                            "Terrestrial": 0.9432245088231461
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-24T23:29:46Z",
                    "superevent_id": "S230924bl",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-24T23:29:47.476570Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-24T23:29:47.476597Z",
                "modified": "2023-09-24T23:29:47.486023Z"
            }
        },
        {
            "id": 1922,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3348,
                "topic": "igwn.gwalert",
                "uuid": "c40ecbc0-8811-4282-b2b4-c8bd05027c78",
                "title": "S230924bl - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230924bl/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230924bl/view/"
                    },
                    "event": {
                        "far": 2.241139191028196e-05,
                        "time": "2023-09-24T23:29:19.080Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1873.3034161113246,
                        "area_90": 9480.661016305343,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.030967460056695685,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "5c589cf74216ed2d2f953caabe710273",
                        "classification": {
                            "BBH": 0.0033776753008507967,
                            "BNS": 0.00024610962323320696,
                            "NSBH": 0.05315170625276986,
                            "Terrestrial": 0.9432245088231461
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-24T23:34:20Z",
                    "superevent_id": "S230924bl",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-24T23:34:22.015020Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-24T23:34:22.015043Z",
                "modified": "2023-09-24T23:34:22.021432Z"
            }
        },
        {
            "id": 1923,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3349,
                "topic": "igwn.gwalert",
                "uuid": "9878541f-15ee-47f0-b22c-94098d22a7f5",
                "title": "S230925k - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230925k/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230925k/view/"
                    },
                    "event": {
                        "far": 1.609746797028325e-06,
                        "time": "2023-09-25T02:26:25.724Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 293.1757614428258,
                        "area_90": 1188.2299782077096,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.6888648450031286,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "c75754fe690586d3d8b60020368dd6f5",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.004096267488714943,
                            "NSBH": 0.010620595887896683,
                            "Terrestrial": 0.9852831366233884
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-25T02:26:49Z",
                    "superevent_id": "S230925k",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-25T02:26:50.610805Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-25T02:26:50.610848Z",
                "modified": "2023-09-25T02:26:50.619105Z"
            }
        },
        {
            "id": 1924,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3350,
                "topic": "igwn.gwalert",
                "uuid": "5730202d-141b-4c13-8e1c-6b6104943e26",
                "title": "S230925k - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230925k/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230925k/view/"
                    },
                    "event": {
                        "far": 1.609746797028325e-06,
                        "time": "2023-09-25T02:26:25.724Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 293.1757614428258,
                        "area_90": 1188.2299782077096,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.6888648450031286,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "c75754fe690586d3d8b60020368dd6f5",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.004096267488714943,
                            "NSBH": 0.010620595887896683,
                            "Terrestrial": 0.9852831366233884
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-25T02:31:23Z",
                    "superevent_id": "S230925k",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-25T02:31:25.162549Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-25T02:31:25.162577Z",
                "modified": "2023-09-25T02:31:25.169063Z"
            }
        },
        {
            "id": 1925,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3352,
                "topic": "igwn.gwalert",
                "uuid": "14a7a8e6-8781-43dd-864e-b91439c8c895",
                "title": "S230925ac - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230925ac/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230925ac/view/"
                    },
                    "event": {
                        "far": 8.540853741578758e-06,
                        "time": "2023-09-25T08:03:29.564Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 421.27295404318016,
                        "area_90": 1619.8367352575522,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.45594227994228,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "aaf1a899e2e92b946c00bbcd87580cd9",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.12499839511057019,
                            "NSBH": 0.0,
                            "Terrestrial": 0.8750016048894298
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-25T08:03:54Z",
                    "superevent_id": "S230925ac",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-25T08:03:54.599471Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-25T08:03:54.599504Z",
                "modified": "2023-09-25T08:03:54.608660Z"
            }
        },
        {
            "id": 1926,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3353,
                "topic": "igwn.gwalert",
                "uuid": "4cd4527d-3417-4fd6-83e9-df2099ddb253",
                "title": "S230925ac - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230925ac/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230925ac/view/"
                    },
                    "event": {
                        "far": 8.540853741578758e-06,
                        "time": "2023-09-25T08:03:29.564Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 421.27295404318016,
                        "area_90": 1619.8367352575522,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.45594227994228,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "aaf1a899e2e92b946c00bbcd87580cd9",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.12499839511057019,
                            "NSBH": 0.0,
                            "Terrestrial": 0.8750016048894298
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-25T08:08:28Z",
                    "superevent_id": "S230925ac",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-25T08:08:29.328834Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-25T08:08:29.328863Z",
                "modified": "2023-09-25T08:08:29.340634Z"
            }
        },
        {
            "id": 1927,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3354,
                "topic": "igwn.gwalert",
                "uuid": "4c0dad53-e46e-454d-9143-abd925f140be",
                "title": "S230925ae - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230925ae/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230925ae/view/"
                    },
                    "event": {
                        "far": 1.402490670196659e-05,
                        "time": "2023-09-25T09:03:00.204Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1381.4773400175807,
                        "area_90": 5658.517756013688,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.04264138160689884,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "b94f6180967f89f148400823c3b07a4a",
                        "classification": {
                            "BBH": 0.11890780810655274,
                            "BNS": 3.6867018400275695e-13,
                            "NSBH": 2.7597349165012818e-11,
                            "Terrestrial": 0.8810921918654813
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-25T09:03:22Z",
                    "superevent_id": "S230925ae",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-25T09:03:23.778203Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-25T09:03:23.778229Z",
                "modified": "2023-09-25T09:03:23.786294Z"
            }
        },
        {
            "id": 1928,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3355,
                "topic": "igwn.gwalert",
                "uuid": "8c38b288-bb9a-4637-8c6d-75e60b63bf7c",
                "title": "S230925ae - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230925ae/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230925ae/view/"
                    },
                    "event": {
                        "far": 1.402490670196659e-05,
                        "time": "2023-09-25T09:03:00.204Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1381.4773400175807,
                        "area_90": 5658.517756013688,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.04264138160689884,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "b94f6180967f89f148400823c3b07a4a",
                        "classification": {
                            "BBH": 0.11890780810655274,
                            "BNS": 3.6867018400275695e-13,
                            "NSBH": 2.7597349165012818e-11,
                            "Terrestrial": 0.8810921918654813
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-25T09:07:56Z",
                    "superevent_id": "S230925ae",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-25T09:07:58.390723Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-25T09:07:58.390750Z",
                "modified": "2023-09-25T09:07:58.396968Z"
            }
        },
        {
            "id": 1929,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3356,
                "topic": "igwn.gwalert",
                "uuid": "97185f20-e829-45c2-9c5e-0a53e35d23ca",
                "title": "S230925ao - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230925ao/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230925ao/view/"
                    },
                    "event": {
                        "far": 2.25003e-05,
                        "time": "2023-09-25T10:22:11.691Z",
                        "group": "Burst",
                        "search": "BBH",
                        "area_50": 818.3113040808879,
                        "area_90": 2355.0579684625345,
                        "duration": 0.024912,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "794e081c299f07227de361f87157d21a",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 121.553093
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-25T10:23:28Z",
                    "superevent_id": "S230925ao",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-25T10:23:29.258335Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-25T10:23:29.258376Z",
                "modified": "2023-09-25T10:23:29.266771Z"
            }
        },
        {
            "id": 1930,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3357,
                "topic": "igwn.gwalert",
                "uuid": "48e5dcb9-676f-4202-a160-8ec474ba4621",
                "title": "S230925ao - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230925ao/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230925ao/view/"
                    },
                    "event": {
                        "far": 2.25003e-05,
                        "time": "2023-09-25T10:22:11.691Z",
                        "group": "Burst",
                        "search": "BBH",
                        "area_50": 818.3113040808879,
                        "area_90": 2355.0579684625345,
                        "duration": 0.024912,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "794e081c299f07227de361f87157d21a",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 121.553093
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-25T10:28:02Z",
                    "superevent_id": "S230925ao",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-25T10:28:02.877830Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-25T10:28:02.877856Z",
                "modified": "2023-09-25T10:28:02.884323Z"
            }
        },
        {
            "id": 1931,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3358,
                "topic": "igwn.gwalert",
                "uuid": "4bf26e2b-0b22-4b1a-a609-f8a8fd5b9294",
                "title": "S230925at - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230925at/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230925at/view/"
                    },
                    "event": {
                        "far": 1.87332e-05,
                        "time": "2023-09-25T10:58:45.750Z",
                        "group": "Burst",
                        "search": "BBH",
                        "area_50": 1421.7634349877171,
                        "area_90": 4507.846168429178,
                        "duration": 0.008185,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "d1beb704a8eb447188def94018e26d74",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 91.370049
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-25T10:59:57Z",
                    "superevent_id": "S230925at",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-25T10:59:58.334643Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-25T10:59:58.334686Z",
                "modified": "2023-09-25T10:59:58.342467Z"
            }
        },
        {
            "id": 1932,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3359,
                "topic": "igwn.gwalert",
                "uuid": "cf1cbef3-3ac3-43d3-8306-6f7d8d0899ab",
                "title": "S230925at - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230925at/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230925at/view/"
                    },
                    "event": {
                        "far": 1.87332e-05,
                        "time": "2023-09-25T10:58:45.750Z",
                        "group": "Burst",
                        "search": "BBH",
                        "area_50": 1421.7634349877171,
                        "area_90": 4507.846168429178,
                        "duration": 0.008185,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "d1beb704a8eb447188def94018e26d74",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 91.370049
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-25T11:04:30Z",
                    "superevent_id": "S230925at",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-25T11:04:31.982231Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-25T11:04:31.982257Z",
                "modified": "2023-09-25T11:04:31.988148Z"
            }
        },
        {
            "id": 1933,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3360,
                "topic": "igwn.gwalert",
                "uuid": "8da7597e-4964-414d-b001-1414222d1195",
                "title": "S230925au - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230925au/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230925au/view/"
                    },
                    "event": {
                        "far": 2.826645186360111e-06,
                        "time": "2023-09-25T11:33:58.894Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 844.5392304937368,
                        "area_90": 3189.3158518024343,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.5290548122172869,
                            "HasRemnant": 0.1973460255397451
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "ad55b3e0fb89fd6aa0d57ff375f53e92",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.2339555464721574,
                            "NSBH": 0.19110478713333626,
                            "Terrestrial": 0.5749396663945063
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-25T11:34:25Z",
                    "superevent_id": "S230925au",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-25T11:34:26.715375Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-25T11:34:26.715405Z",
                "modified": "2023-09-25T11:34:26.723267Z"
            }
        },
        {
            "id": 1934,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3361,
                "topic": "igwn.gwalert",
                "uuid": "3579145c-177a-46a0-aa6a-c7642765dd88",
                "title": "S230925au - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230925au/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230925au/view/"
                    },
                    "event": {
                        "far": 2.826645186360111e-06,
                        "time": "2023-09-25T11:33:58.894Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 844.5392304937368,
                        "area_90": 3189.3158518024343,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.5290548122172869,
                            "HasRemnant": 0.1973460255397451
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "ad55b3e0fb89fd6aa0d57ff375f53e92",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.2339555464721574,
                            "NSBH": 0.19110478713333626,
                            "Terrestrial": 0.5749396663945063
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-25T11:39:05Z",
                    "superevent_id": "S230925au",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-25T11:39:06.399317Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-25T11:39:06.399340Z",
                "modified": "2023-09-25T11:39:06.404990Z"
            }
        },
        {
            "id": 1935,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3364,
                "topic": "igwn.gwalert",
                "uuid": "5339eb22-dd91-4009-a1c9-78088455bfd7",
                "title": "S230925be - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230925be/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230925be/view/"
                    },
                    "event": {
                        "far": 6.35564e-06,
                        "time": "2023-09-25T14:23:53.866Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 722.6318285268148,
                        "area_90": 2810.7944178121984,
                        "duration": 0.017251,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "447d1fd5c1019101691f3cb1f7982ece",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 900.085571
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-25T14:25:14Z",
                    "superevent_id": "S230925be",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-25T14:25:15.210291Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-25T14:25:15.210355Z",
                "modified": "2023-09-25T14:25:15.218411Z"
            }
        },
        {
            "id": 1936,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3365,
                "topic": "igwn.gwalert",
                "uuid": "dc66b102-f64e-4f2e-b4b9-a9212cb853bb",
                "title": "S230925be - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230925be/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230925be/view/"
                    },
                    "event": {
                        "far": 6.35564e-06,
                        "time": "2023-09-25T14:23:53.866Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 722.6318285268148,
                        "area_90": 2810.7944178121984,
                        "duration": 0.017251,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "447d1fd5c1019101691f3cb1f7982ece",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 900.085571
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-25T14:29:48Z",
                    "superevent_id": "S230925be",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-25T14:29:48.728725Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-25T14:29:48.728753Z",
                "modified": "2023-09-25T14:29:48.734844Z"
            }
        },
        {
            "id": 1937,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3366,
                "topic": "igwn.gwalert",
                "uuid": "ce6921ce-d1b0-45b2-aef1-8acdc14afd49",
                "title": "S230925bf - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230925bf/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230925bf/view/"
                    },
                    "event": {
                        "far": 1.11971e-06,
                        "time": "2023-09-25T14:39:57.562Z",
                        "group": "Burst",
                        "search": "BBH",
                        "area_50": 2201.467231388891,
                        "area_90": 6659.795074750611,
                        "duration": 0.012174,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "4fe5d37aa81f4dbcf09c45b93e7f65d9",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 51.507069
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-25T14:40:58Z",
                    "superevent_id": "S230925bf",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-25T14:40:59.649572Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-25T14:40:59.649601Z",
                "modified": "2023-09-25T14:40:59.655944Z"
            }
        },
        {
            "id": 1938,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3367,
                "topic": "igwn.gwalert",
                "uuid": "882176bf-00e6-401f-b6a3-4613e5f026f0",
                "title": "S230925bf - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230925bf/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230925bf/view/"
                    },
                    "event": {
                        "far": 1.11971e-06,
                        "time": "2023-09-25T14:39:57.562Z",
                        "group": "Burst",
                        "search": "BBH",
                        "area_50": 2201.467231388891,
                        "area_90": 6659.795074750611,
                        "duration": 0.012174,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "4fe5d37aa81f4dbcf09c45b93e7f65d9",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 51.507069
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-25T14:45:35Z",
                    "superevent_id": "S230925bf",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-25T14:45:36.293536Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-25T14:45:36.293563Z",
                "modified": "2023-09-25T14:45:36.299539Z"
            }
        },
        {
            "id": 1939,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3371,
                "topic": "igwn.gwalert",
                "uuid": "fa09ae4d-35c8-46b6-95e5-1a6c1f941f08",
                "title": "S230925bw - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230925bw/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230925bw/view/"
                    },
                    "event": {
                        "far": 2.10598e-05,
                        "time": "2023-09-25T20:52:05.540Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 402.23147946745183,
                        "area_90": 2807.2274198200507,
                        "duration": 0.096786,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "c77a3fa18add899113158af466521829",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 122.257355
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-25T20:54:20Z",
                    "superevent_id": "S230925bw",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-25T20:54:21.933451Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-25T20:54:21.933483Z",
                "modified": "2023-09-25T20:54:21.941789Z"
            }
        },
        {
            "id": 1940,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3372,
                "topic": "igwn.gwalert",
                "uuid": "3ed0eb41-d7e2-4c20-be50-529f14da2cd1",
                "title": "S230925bw - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230925bw/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230925bw/view/"
                    },
                    "event": {
                        "far": 2.10598e-05,
                        "time": "2023-09-25T20:52:05.540Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 402.23147946745183,
                        "area_90": 2807.2274198200507,
                        "duration": 0.096786,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "c77a3fa18add899113158af466521829",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 122.257355
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-25T20:58:54Z",
                    "superevent_id": "S230925bw",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-25T20:58:55.662228Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-25T20:58:55.662254Z",
                "modified": "2023-09-25T20:58:55.667585Z"
            }
        },
        {
            "id": 1941,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3373,
                "topic": "igwn.gwalert",
                "uuid": "9a35129f-a59f-451c-a449-e114cfa5985b",
                "title": "S230925bx - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230925bx/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230925bx/view/"
                    },
                    "event": {
                        "far": 3.059246182601782e-06,
                        "time": "2023-09-25T21:16:14.529Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 613.1040078267575,
                        "area_90": 2917.3847107540164,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.5646669535507133,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "4103138db19f2a045129f88b379294cd",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.43913661717787816,
                            "NSBH": 0.0,
                            "Terrestrial": 0.5608633828221219
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-25T21:17:56Z",
                    "superevent_id": "S230925bx",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-25T21:17:57.498014Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-25T21:17:57.498040Z",
                "modified": "2023-09-25T21:17:57.503305Z"
            }
        },
        {
            "id": 1942,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3374,
                "topic": "igwn.gwalert",
                "uuid": "97d1180c-39ca-4772-8cd5-3d98c457705e",
                "title": "S230925bx - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230925bx/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230925bx/view/"
                    },
                    "event": {
                        "far": 3.059246182601782e-06,
                        "time": "2023-09-25T21:16:14.529Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 613.1040078267575,
                        "area_90": 2917.3847107540164,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.5646669535507133,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "4103138db19f2a045129f88b379294cd",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.43913661717787816,
                            "NSBH": 0.0,
                            "Terrestrial": 0.5608633828221219
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-25T21:22:30Z",
                    "superevent_id": "S230925bx",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-25T21:22:32.165841Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-25T21:22:32.165870Z",
                "modified": "2023-09-25T21:22:32.170912Z"
            }
        },
        {
            "id": 1943,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3375,
                "topic": "igwn.gwalert",
                "uuid": "6f1ff90b-e6bb-4bb5-944a-64c3df9ef5cd",
                "title": "S230925ch - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230925ch/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230925ch/view/"
                    },
                    "event": {
                        "far": 1.66155e-05,
                        "time": "2023-09-25T23:34:34.250Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 209.19394106888342,
                        "area_90": 1736.2887285306015,
                        "duration": 0.012314,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "eb11ca4c6aee11982f99b6cfc94aa0a7",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 265.639465
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-25T23:37:56Z",
                    "superevent_id": "S230925ch",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-25T23:37:58.037747Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-25T23:37:58.037774Z",
                "modified": "2023-09-25T23:37:58.046171Z"
            }
        },
        {
            "id": 1944,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3376,
                "topic": "igwn.gwalert",
                "uuid": "04825325-0aae-4694-8b69-6e4fa420ca01",
                "title": "S230925ch - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230925ch/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230925ch/view/"
                    },
                    "event": {
                        "far": 1.66155e-05,
                        "time": "2023-09-25T23:34:34.250Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 209.19394106888342,
                        "area_90": 1736.2887285306015,
                        "duration": 0.012314,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "eb11ca4c6aee11982f99b6cfc94aa0a7",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 265.639465
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-25T23:42:30Z",
                    "superevent_id": "S230925ch",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-25T23:42:31.791916Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-25T23:42:31.791942Z",
                "modified": "2023-09-25T23:42:31.797309Z"
            }
        },
        {
            "id": 1945,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3377,
                "topic": "igwn.gwalert",
                "uuid": "cd1d5288-0450-4e5d-a7ae-cf7f68b103a7",
                "title": "S230925cj - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230925cj/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230925cj/view/"
                    },
                    "event": {
                        "far": 2.07576e-07,
                        "time": "2023-09-25T23:58:25.422Z",
                        "group": "Burst",
                        "search": "BBH",
                        "area_50": 1262.2976423975952,
                        "area_90": 4087.3600521783824,
                        "duration": 0.030299,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "ce527ba7c9ccbb177fef1c739b330fd1",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 23.935883
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-26T00:02:07Z",
                    "superevent_id": "S230925cj",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-26T00:02:08.347281Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-26T00:02:08.347306Z",
                "modified": "2023-09-26T00:02:08.352578Z"
            }
        },
        {
            "id": 1946,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3378,
                "topic": "igwn.gwalert",
                "uuid": "ba133742-2908-4739-a81d-2832f722f3a8",
                "title": "S230925cj - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230925cj/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230925cj/view/"
                    },
                    "event": {
                        "far": 2.07576e-07,
                        "time": "2023-09-25T23:58:25.422Z",
                        "group": "Burst",
                        "search": "BBH",
                        "area_50": 1262.2976423975952,
                        "area_90": 4087.3600521783824,
                        "duration": 0.030299,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "ce527ba7c9ccbb177fef1c739b330fd1",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 23.935883
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-26T00:07:01Z",
                    "superevent_id": "S230925cj",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-26T00:07:02.124694Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-26T00:07:02.124723Z",
                "modified": "2023-09-26T00:07:02.130652Z"
            }
        },
        {
            "id": 1947,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3379,
                "topic": "igwn.gwalert",
                "uuid": "b6fda57e-57b6-490e-b5de-e149402230a6",
                "title": "S230926j - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230926j/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230926j/view/"
                    },
                    "event": {
                        "far": 1.90955e-05,
                        "time": "2023-09-26T07:27:50.300Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 956.7947555407303,
                        "area_90": 3848.1613632932,
                        "duration": 0.007841,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "f4ff20064cc1446ba82c62413d294502",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 186.876968
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-26T07:29:33Z",
                    "superevent_id": "S230926j",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-26T07:29:33.765876Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-26T07:29:33.765899Z",
                "modified": "2023-09-26T07:29:33.773410Z"
            }
        },
        {
            "id": 1948,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3380,
                "topic": "igwn.gwalert",
                "uuid": "1bf596e8-f5dd-4055-91b4-a0e0fa63d93b",
                "title": "S230926j - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230926j/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230926j/view/"
                    },
                    "event": {
                        "far": 1.90955e-05,
                        "time": "2023-09-26T07:27:50.300Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 956.7947555407303,
                        "area_90": 3848.1613632932,
                        "duration": 0.007841,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "f4ff20064cc1446ba82c62413d294502",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 186.876968
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-26T07:34:07Z",
                    "superevent_id": "S230926j",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-26T07:34:07.471648Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-26T07:34:07.471672Z",
                "modified": "2023-09-26T07:34:07.477262Z"
            }
        },
        {
            "id": 1949,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3381,
                "topic": "igwn.gwalert",
                "uuid": "64792b78-7402-412f-bb62-04ee56a7b8c1",
                "title": "S230926l - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230926l/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230926l/view/"
                    },
                    "event": {
                        "far": 2.11339e-05,
                        "time": "2023-09-26T07:30:27.302Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 1377.490695202828,
                        "area_90": 5710.973608839386,
                        "duration": 0.123597,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "913bb4114757494253b89fea2a95cb51",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 122.711365
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-26T07:34:36Z",
                    "superevent_id": "S230926l",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-26T07:34:37.577546Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-26T07:34:37.577575Z",
                "modified": "2023-09-26T07:34:37.584890Z"
            }
        },
        {
            "id": 1950,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3382,
                "topic": "igwn.gwalert",
                "uuid": "5d874824-a2aa-4d7e-b0d3-ad47c44afb74",
                "title": "S230926l - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230926l/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230926l/view/"
                    },
                    "event": {
                        "far": 2.11339e-05,
                        "time": "2023-09-26T07:30:27.302Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 1377.490695202828,
                        "area_90": 5710.973608839386,
                        "duration": 0.123597,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "913bb4114757494253b89fea2a95cb51",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 122.711365
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-26T07:39:12Z",
                    "superevent_id": "S230926l",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-26T07:39:13.280275Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-26T07:39:13.280302Z",
                "modified": "2023-09-26T07:39:13.285364Z"
            }
        },
        {
            "id": 1951,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3383,
                "topic": "igwn.gwalert",
                "uuid": "7d390ad8-08b1-423f-876b-c121112a0cfb",
                "title": "S230926o - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230926o/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230926o/view/"
                    },
                    "event": {
                        "far": 1.59104e-06,
                        "time": "2023-09-26T08:45:30.719Z",
                        "group": "Burst",
                        "search": "BBH",
                        "area_50": 2534.666808537724,
                        "area_90": 7888.520971339757,
                        "duration": 0.012842,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "03e97d887c099596118c85e1d180d9a4",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 55.765285
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-26T08:48:18Z",
                    "superevent_id": "S230926o",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-26T08:48:19.679378Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-26T08:48:19.679401Z",
                "modified": "2023-09-26T08:48:19.687310Z"
            }
        },
        {
            "id": 1952,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3384,
                "topic": "igwn.gwalert",
                "uuid": "94ab6c8a-712c-4014-95ea-f31cad06f9d6",
                "title": "S230926o - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230926o/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230926o/view/"
                    },
                    "event": {
                        "far": 1.59104e-06,
                        "time": "2023-09-26T08:45:30.719Z",
                        "group": "Burst",
                        "search": "BBH",
                        "area_50": 2534.666808537724,
                        "area_90": 7888.520971339757,
                        "duration": 0.012842,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "03e97d887c099596118c85e1d180d9a4",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 55.765285
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-26T08:52:52Z",
                    "superevent_id": "S230926o",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-26T08:52:53.362231Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-26T08:52:53.362258Z",
                "modified": "2023-09-26T08:52:53.367996Z"
            }
        },
        {
            "id": 1953,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3385,
                "topic": "igwn.gwalert",
                "uuid": "f9493b9b-2212-4e25-a835-3dce3850a1bc",
                "title": "S230926ac - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230926ac/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230926ac/view/"
                    },
                    "event": {
                        "far": 2.12104e-05,
                        "time": "2023-09-26T11:17:43.141Z",
                        "group": "Burst",
                        "search": "BBH",
                        "area_50": 1308.4587928842093,
                        "area_90": 4255.218781220617,
                        "duration": 0.006037,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "e0c58469ffa5fbdce49615d54a3625a6",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 193.315033
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-26T11:19:17Z",
                    "superevent_id": "S230926ac",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-26T11:19:18.308461Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-26T11:19:18.308486Z",
                "modified": "2023-09-26T11:19:18.316452Z"
            }
        },
        {
            "id": 1954,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3386,
                "topic": "igwn.gwalert",
                "uuid": "d70edbec-9e39-4165-8a08-e3787699792b",
                "title": "S230926ac - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230926ac/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230926ac/view/"
                    },
                    "event": {
                        "far": 2.12104e-05,
                        "time": "2023-09-26T11:17:43.141Z",
                        "group": "Burst",
                        "search": "BBH",
                        "area_50": 1308.4587928842093,
                        "area_90": 4255.218781220617,
                        "duration": 0.006037,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "e0c58469ffa5fbdce49615d54a3625a6",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 193.315033
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-26T11:23:50Z",
                    "superevent_id": "S230926ac",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-26T11:23:50.806507Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-26T11:23:50.806531Z",
                "modified": "2023-09-26T11:23:50.811637Z"
            }
        },
        {
            "id": 1955,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3387,
                "topic": "igwn.gwalert",
                "uuid": "c6399f71-b29c-4151-b907-e462fb0ad90a",
                "title": "S230926ae - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230926ae/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230926ae/view/"
                    },
                    "event": {
                        "far": 2.216869811913637e-05,
                        "time": "2023-09-26T11:41:38.081Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 756.6232211578671,
                        "area_90": 2731.9008151623484,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "5ae16a7fe4d4900b2e63c5a6b16d8dc3",
                        "classification": {
                            "BBH": 0.06353684197428754,
                            "BNS": 2.9831990976109706e-14,
                            "NSBH": 2.091820937317187e-12,
                            "Terrestrial": 0.9364631580235908
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-26T11:42:03Z",
                    "superevent_id": "S230926ae",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-26T11:42:05.614280Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-26T11:42:05.614306Z",
                "modified": "2023-09-26T11:42:05.619639Z"
            }
        },
        {
            "id": 1956,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3388,
                "topic": "igwn.gwalert",
                "uuid": "7965b7ad-9687-4bab-82a9-ea46c41ba1f9",
                "title": "S230926af - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230926af/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230926af/view/"
                    },
                    "event": {
                        "far": 1.48212637504432e-05,
                        "time": "2023-09-26T11:43:43.626Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 585.8269643573946,
                        "area_90": 2523.7559911499793,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.04191751097754533,
                            "HasMassGap": 0.3461992076241122,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "bd1113219c10b779127bac31a71ce428",
                        "classification": {
                            "BBH": 0.0012413954191170431,
                            "BNS": 0.0,
                            "NSBH": 0.001957222950250627,
                            "Terrestrial": 0.9968013816306324
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-26T11:44:10Z",
                    "superevent_id": "S230926af",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-26T11:44:12.207505Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-26T11:44:12.207531Z",
                "modified": "2023-09-26T11:44:12.212890Z"
            }
        },
        {
            "id": 1957,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3389,
                "topic": "igwn.gwalert",
                "uuid": "b37ee6f2-83a3-4a15-910a-fdcb7c96cf26",
                "title": "S230926ae - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230926ae/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230926ae/view/"
                    },
                    "event": {
                        "far": 1.447075283442882e-05,
                        "time": "2023-09-26T11:41:38.080Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 742.3552291892772,
                        "area_90": 2678.1860218688334,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "330989ee0a46791f6bbcd91f62e454f8",
                        "classification": {
                            "BBH": 0.11200264434933367,
                            "BNS": 3.154518178853479e-14,
                            "NSBH": 2.2154702218974836e-12,
                            "Terrestrial": 0.8879973556484193
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-26T11:46:38Z",
                    "superevent_id": "S230926ae",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-26T11:46:39.494201Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-26T11:46:39.494228Z",
                "modified": "2023-09-26T11:46:39.499253Z"
            }
        },
        {
            "id": 1958,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3390,
                "topic": "igwn.gwalert",
                "uuid": "c86b4d63-0bb1-4c4f-8940-e531faed2a85",
                "title": "S230926af - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230926af/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230926af/view/"
                    },
                    "event": {
                        "far": 1.48212637504432e-05,
                        "time": "2023-09-26T11:43:43.626Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 585.8269643573946,
                        "area_90": 2523.7559911499793,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.04191751097754533,
                            "HasMassGap": 0.3461992076241122,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "bd1113219c10b779127bac31a71ce428",
                        "classification": {
                            "BBH": 0.0012413954191170431,
                            "BNS": 0.0,
                            "NSBH": 0.001957222950250627,
                            "Terrestrial": 0.9968013816306324
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-26T11:48:44Z",
                    "superevent_id": "S230926af",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-26T11:48:45.756107Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-26T11:48:45.756195Z",
                "modified": "2023-09-26T11:48:45.762341Z"
            }
        },
        {
            "id": 1959,
            "sequence_number": 4,
            "sequence_type": "UPDATE",
            "message": {
                "id": 3392,
                "topic": "igwn.gwalert",
                "uuid": "7f85a69b-89ec-4cb1-bdbf-5d781de19b01",
                "title": "S230922q - UPDATE",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230922q/files/bayestar.multiorder.fits,2",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230922q/view/"
                    },
                    "event": {
                        "far": 3.607753495191586e-10,
                        "time": "2023-09-22T04:06:58.085Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1261.0387019297784,
                        "area_90": 4658.079730921977,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": true,
                        "skymap_hash": "f7a902e7cc31d78e540beda98a265c18",
                        "classification": {
                            "BBH": 0.9999775936280579,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 2.2406371942063075e-05
                        },
                        "skymap_version": 2,
                        "central_frequency": null
                    },
                    "alert_type": "UPDATE",
                    "sequence_num": 4,
                    "time_created": "2023-09-26T19:37:08Z",
                    "superevent_id": "S230922q",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-26T19:37:09.638040Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-26T19:37:09.638108Z",
                "modified": "2023-09-26T19:37:09.646607Z"
            }
        },
        {
            "id": 1960,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3395,
                "topic": "igwn.gwalert",
                "uuid": "880e3fec-b9aa-4369-8444-9a16161921f2",
                "title": "S230926at - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230926at/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230926at/view/"
                    },
                    "event": {
                        "far": 2.18674e-06,
                        "time": "2023-09-26T22:45:27.918Z",
                        "group": "Burst",
                        "search": "BBH",
                        "area_50": 881.2583274717254,
                        "area_90": 2971.0995040475314,
                        "duration": 0.013127,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "c3a354a43590edd1a8e701db110a9518",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 50.436852
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-26T22:46:34Z",
                    "superevent_id": "S230926at",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-26T22:46:35.979002Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-26T22:46:35.979028Z",
                "modified": "2023-09-26T22:46:35.984669Z"
            }
        },
        {
            "id": 1961,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3397,
                "topic": "igwn.gwalert",
                "uuid": "e10b7803-82d8-4529-8be2-c4b31bd361f2",
                "title": "S230926at - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230926at/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230926at/view/"
                    },
                    "event": {
                        "far": 2.18674e-06,
                        "time": "2023-09-26T22:45:27.918Z",
                        "group": "Burst",
                        "search": "BBH",
                        "area_50": 881.2583274717254,
                        "area_90": 2971.0995040475314,
                        "duration": 0.013127,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "c3a354a43590edd1a8e701db110a9518",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 50.436852
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-26T22:51:07Z",
                    "superevent_id": "S230926at",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-26T22:51:08.743886Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-26T22:51:08.743915Z",
                "modified": "2023-09-26T22:51:08.749467Z"
            }
        },
        {
            "id": 1962,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3398,
                "topic": "igwn.gwalert",
                "uuid": "d03722c2-e64a-4ca6-bfbf-8b1df3e2fbda",
                "title": "S230927g - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230927g/files/olib.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230927g/view/"
                    },
                    "event": {
                        "far": 7.193289567111437e-07,
                        "time": "2023-09-27T02:49:41.762Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 127.62508992492305,
                        "area_90": 492.4030904748265,
                        "duration": 0.0012404485752365076,
                        "pipeline": "oLIB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "aefd2d54f57f0459ad7d386ca36f8254",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 493.4271338998489
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-27T03:09:20Z",
                    "superevent_id": "S230927g",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-27T03:09:21.670025Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-27T03:09:21.670053Z",
                "modified": "2023-09-27T03:09:21.677895Z"
            }
        },
        {
            "id": 1963,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3399,
                "topic": "igwn.gwalert",
                "uuid": "18549038-5222-4c16-8e58-fc8d839b7ba9",
                "title": "S230927g - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230927g/files/olib.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230927g/view/"
                    },
                    "event": {
                        "far": 7.193289567111437e-07,
                        "time": "2023-09-27T02:49:41.762Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 127.62508992492305,
                        "area_90": 492.4030904748265,
                        "duration": 0.0012404485752365076,
                        "pipeline": "oLIB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "aefd2d54f57f0459ad7d386ca36f8254",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 493.4271338998489
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-27T03:13:54Z",
                    "superevent_id": "S230927g",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-27T03:13:55.346540Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-27T03:13:55.346570Z",
                "modified": "2023-09-27T03:13:55.352375Z"
            }
        },
        {
            "id": 1964,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3401,
                "topic": "igwn.gwalert",
                "uuid": "6dddac72-f800-4f01-a26d-3ad4b072f4a0",
                "title": "S230927l - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230927l/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230927l/view/"
                    },
                    "event": {
                        "far": 2.120013182948283e-15,
                        "time": "2023-09-27T04:37:29.122Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 326.1180370173641,
                        "area_90": 1645.8548382590984,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": true,
                        "skymap_hash": "6bd78468f6817f3f61459a62d445ae34",
                        "classification": {
                            "BBH": 0.9999999914685797,
                            "BNS": 5.427519141047789e-29,
                            "NSBH": 4.521170239341344e-27,
                            "Terrestrial": 8.531420347956953e-09
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-27T04:37:58Z",
                    "superevent_id": "S230927l",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-27T04:38:00.591263Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-27T04:38:00.591289Z",
                "modified": "2023-09-27T04:38:00.598527Z"
            }
        },
        {
            "id": 1965,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3402,
                "topic": "igwn.gwalert",
                "uuid": "db8c0ac5-99ac-461b-aa23-f90b62655c28",
                "title": "S230927l - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230927l/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230927l/view/"
                    },
                    "event": {
                        "far": 1.07500195412058e-08,
                        "time": "2023-09-27T04:37:29.118Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 358.7455774749482,
                        "area_90": 1850.642487690623,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": true,
                        "skymap_hash": "381d935f65912dc41f0c1e4cf60d3397",
                        "classification": {
                            "BBH": 0.9757501063003873,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.024249893699612723
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-27T04:42:38Z",
                    "superevent_id": "S230927l",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-27T04:42:39.260081Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-27T04:42:39.260107Z",
                "modified": "2023-09-27T04:42:39.265333Z"
            }
        },
        {
            "id": 1966,
            "sequence_number": 3,
            "sequence_type": "INITIAL",
            "message": {
                "id": 3403,
                "topic": "igwn.gwalert",
                "uuid": "5e462df0-5e27-4d48-9a2c-e7c2e1c961a5",
                "title": "S230927l - INITIAL",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230927l/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230927l/view/"
                    },
                    "event": {
                        "far": 1.07500195412058e-08,
                        "time": "2023-09-27T04:37:29.118Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 358.7455774749482,
                        "area_90": 1850.642487690623,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": true,
                        "skymap_hash": "381d935f65912dc41f0c1e4cf60d3397",
                        "classification": {
                            "BBH": 0.9757501063003873,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.024249893699612723
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "INITIAL",
                    "sequence_num": 3,
                    "time_created": "2023-09-27T05:40:31Z",
                    "superevent_id": "S230927l",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-27T05:40:32.958748Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-27T05:40:32.958774Z",
                "modified": "2023-09-27T05:40:32.966268Z"
            }
        },
        {
            "id": 1967,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3410,
                "topic": "igwn.gwalert",
                "uuid": "89a80ecf-8ffe-4210-a695-f24b390b3514",
                "title": "S230927ae - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230927ae/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230927ae/view/"
                    },
                    "event": {
                        "far": 2.05025e-05,
                        "time": "2023-09-27T08:30:12.889Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 384.3964895067145,
                        "area_90": 1630.7475526452977,
                        "duration": 0.039929,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "291e3dacc52ee721fbaff19f1db48541",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 229.891113
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-27T08:37:28Z",
                    "superevent_id": "S230927ae",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:53:59.439307Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:53:59.439331Z",
                "modified": "2023-09-28T20:53:59.445506Z"
            }
        },
        {
            "id": 1968,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3411,
                "topic": "igwn.gwalert",
                "uuid": "61ca6877-aa51-45d7-a059-c008115ceb28",
                "title": "S230927ah - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230927ah/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230927ah/view/"
                    },
                    "event": {
                        "far": 8.81474e-06,
                        "time": "2023-09-27T10:11:50.566Z",
                        "group": "Burst",
                        "search": "BBH",
                        "area_50": 2392.826182497037,
                        "area_90": 7508.3209500591,
                        "duration": 0.012391,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "b375989d51116fe1524e1655e6dafb90",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 56.392086
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-27T10:12:54Z",
                    "superevent_id": "S230927ah",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:53:59.484210Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:53:59.484230Z",
                "modified": "2023-09-28T20:53:59.489515Z"
            }
        },
        {
            "id": 1969,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3412,
                "topic": "igwn.gwalert",
                "uuid": "40454d04-a274-4c0a-ba77-0bfefdcb07d1",
                "title": "S230927an - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230927an/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230927an/view/"
                    },
                    "event": {
                        "far": 1.145318947237683e-05,
                        "time": "2023-09-27T13:44:27.010Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 721.1630646476953,
                        "area_90": 8359.364706303226,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "20e6c6ea9668168ffaa3ee8423a518f8",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.07932982305857511,
                            "NSBH": 0.010906626373933782,
                            "Terrestrial": 0.9097635505674911
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-27T13:44:53Z",
                    "superevent_id": "S230927an",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:53:59.536606Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:53:59.536626Z",
                "modified": "2023-09-28T20:53:59.541923Z"
            }
        },
        {
            "id": 1970,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3415,
                "topic": "igwn.gwalert",
                "uuid": "711c7cdc-bf56-4adf-8400-e3451fb07675",
                "title": "S230927ae - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230927ae/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230927ae/view/"
                    },
                    "event": {
                        "far": 2.05025e-05,
                        "time": "2023-09-27T08:30:12.889Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 384.3964895067145,
                        "area_90": 1630.7475526452977,
                        "duration": 0.039929,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "291e3dacc52ee721fbaff19f1db48541",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 229.891113
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-27T08:32:52Z",
                    "superevent_id": "S230927ae",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:53:59.659435Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:53:59.659456Z",
                "modified": "2023-09-28T20:53:59.665313Z"
            }
        },
        {
            "id": 1971,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3417,
                "topic": "igwn.gwalert",
                "uuid": "ca40a06c-1d3d-44c7-ad3d-4b6f8d30583b",
                "title": "S230927ax - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230927ax/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230927ax/view/"
                    },
                    "event": {
                        "far": 1.681491710355148e-05,
                        "time": "2023-09-27T14:48:55.770Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 556.8713335976092,
                        "area_90": 2364.2901985598573,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.014816639299397917,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "d3f153e45f058a624ad16950505d983d",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.00017430736989747,
                            "NSBH": 0.0011747392880928262,
                            "Terrestrial": 0.9986509533420097
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-27T14:54:01Z",
                    "superevent_id": "S230927ax",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:05.414429Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:05.414462Z",
                "modified": "2023-09-28T20:54:05.421028Z"
            }
        },
        {
            "id": 1972,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3418,
                "topic": "igwn.gwalert",
                "uuid": "c467fa27-c4a5-46fb-9f6e-46e04a5837db",
                "title": "S230927ah - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230927ah/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230927ah/view/"
                    },
                    "event": {
                        "far": 8.81474e-06,
                        "time": "2023-09-27T10:11:50.566Z",
                        "group": "Burst",
                        "search": "BBH",
                        "area_50": 2392.826182497037,
                        "area_90": 7508.3209500591,
                        "duration": 0.012391,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "b375989d51116fe1524e1655e6dafb90",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 56.392086
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-27T10:17:28Z",
                    "superevent_id": "S230927ah",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:05.647228Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:05.647264Z",
                "modified": "2023-09-28T20:54:05.737311Z"
            }
        },
        {
            "id": 1973,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3421,
                "topic": "igwn.gwalert",
                "uuid": "a19796e9-1727-4e8d-8944-68a759c103d0",
                "title": "S230927aq - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230927aq/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230927aq/view/"
                    },
                    "event": {
                        "far": 1.658970459416795e-05,
                        "time": "2023-09-27T13:49:15.705Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 988.2682672361492,
                        "area_90": 3765.0712924172954,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.024214082713417944,
                            "HasMassGap": 0.26719122043901594,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "6b5737fceb839b975c1dd33ab8087c8a",
                        "classification": {
                            "BBH": 0.03992759023161618,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9600724097683838
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-27T13:49:48Z",
                    "superevent_id": "S230927aq",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:05.890426Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:05.890448Z",
                "modified": "2023-09-28T20:54:05.896104Z"
            }
        },
        {
            "id": 1974,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3422,
                "topic": "igwn.gwalert",
                "uuid": "a0563688-bee4-4515-ae3b-02dbee7496a1",
                "title": "S230927ba - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230927ba/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230927ba/view/"
                    },
                    "event": {
                        "far": 2.094765659421682e-05,
                        "time": "2023-09-27T15:05:51.055Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1054.782288619134,
                        "area_90": 3451.1754691083192,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.04984126984126984,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "17414f66edb768ddb2f279a7f83a6349",
                        "classification": {
                            "BBH": 0.00020794792111685872,
                            "BNS": 0.00717713416663128,
                            "NSBH": 0.09696686727292624,
                            "Terrestrial": 0.8956480506393256
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-27T15:06:18Z",
                    "superevent_id": "S230927ba",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:05.949477Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:05.949499Z",
                "modified": "2023-09-28T20:54:05.955025Z"
            }
        },
        {
            "id": 1975,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3423,
                "topic": "igwn.gwalert",
                "uuid": "ab0ad6a0-3622-4ce0-9453-04eac94c750c",
                "title": "S230927bh - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230927bh/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230927bh/view/"
                    },
                    "event": {
                        "far": 1.88814501124217e-05,
                        "time": "2023-09-27T16:02:41.652Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 481.64964064555846,
                        "area_90": 1974.8579471818757,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.012712917913729273,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "c7e4db748118e8eba234f7501e7bb083",
                        "classification": {
                            "BBH": 0.07455205560940802,
                            "BNS": 6.8262012827052866e-15,
                            "NSBH": 4.4407060877502884e-13,
                            "Terrestrial": 0.9254479443901411
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-27T16:07:47Z",
                    "superevent_id": "S230927bh",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:06.220148Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:06.220170Z",
                "modified": "2023-09-28T20:54:06.225380Z"
            }
        },
        {
            "id": 1976,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3424,
                "topic": "igwn.gwalert",
                "uuid": "0f0c408d-5aaf-4d2e-a462-f901d387c493",
                "title": "S230927bh - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230927bh/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230927bh/view/"
                    },
                    "event": {
                        "far": 1.88814501124217e-05,
                        "time": "2023-09-27T16:02:41.652Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 481.64964064555846,
                        "area_90": 1974.8579471818757,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.012712917913729273,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "c7e4db748118e8eba234f7501e7bb083",
                        "classification": {
                            "BBH": 0.07455205560940802,
                            "BNS": 6.8262012827052866e-15,
                            "NSBH": 4.4407060877502884e-13,
                            "Terrestrial": 0.9254479443901411
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-27T16:03:08Z",
                    "superevent_id": "S230927bh",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:06.273679Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:06.273700Z",
                "modified": "2023-09-28T20:54:06.278943Z"
            }
        },
        {
            "id": 1977,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3425,
                "topic": "igwn.gwalert",
                "uuid": "e14134d1-88af-4d28-8aba-5a420785de0a",
                "title": "S230927ax - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230927ax/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230927ax/view/"
                    },
                    "event": {
                        "far": 1.681491710355148e-05,
                        "time": "2023-09-27T14:48:55.770Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 556.8713335976092,
                        "area_90": 2364.2901985598573,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.014816639299397917,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "d3f153e45f058a624ad16950505d983d",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.00017430736989747,
                            "NSBH": 0.0011747392880928262,
                            "Terrestrial": 0.9986509533420097
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-27T14:49:25Z",
                    "superevent_id": "S230927ax",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:06.321425Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:06.321446Z",
                "modified": "2023-09-28T20:54:06.326765Z"
            }
        },
        {
            "id": 1978,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3426,
                "topic": "igwn.gwalert",
                "uuid": "c067104b-82ce-4c54-9f35-af820027b049",
                "title": "S230927ba - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230927ba/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230927ba/view/"
                    },
                    "event": {
                        "far": 2.094765659421682e-05,
                        "time": "2023-09-27T15:05:51.055Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1054.782288619134,
                        "area_90": 3451.1754691083192,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.04984126984126984,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "17414f66edb768ddb2f279a7f83a6349",
                        "classification": {
                            "BBH": 0.00020794792111685872,
                            "BNS": 0.00717713416663128,
                            "NSBH": 0.09696686727292624,
                            "Terrestrial": 0.8956480506393256
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-27T15:10:53Z",
                    "superevent_id": "S230927ba",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:13.300432Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:13.300455Z",
                "modified": "2023-09-28T20:54:13.305718Z"
            }
        },
        {
            "id": 1979,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3427,
                "topic": "igwn.gwalert",
                "uuid": "cb38dad0-b3cb-4892-9711-b351ebe4f3b2",
                "title": "S230927be - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230927be/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230927be/view/"
                    },
                    "event": {
                        "far": 3.167545842243851e-10,
                        "time": "2023-09-27T15:38:32.919Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 136.28030564116324,
                        "area_90": 527.0764091926128,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": true,
                        "skymap_hash": "b902fc512be53f92f4abeb16a3f6e0d3",
                        "classification": {
                            "BBH": 0.9996578739974026,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.00034212600259742043
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-27T15:44:16Z",
                    "superevent_id": "S230927be",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:13.360194Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:13.360231Z",
                "modified": "2023-09-28T20:54:13.385365Z"
            }
        },
        {
            "id": 1980,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3428,
                "topic": "igwn.gwalert",
                "uuid": "2c8d8edc-4cc0-4ac5-b10e-4c4ec53df6e9",
                "title": "S230927an - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230927an/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230927an/view/"
                    },
                    "event": {
                        "far": 1.145318947237683e-05,
                        "time": "2023-09-27T13:44:27.010Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 721.1630646476953,
                        "area_90": 8359.364706303226,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "20e6c6ea9668168ffaa3ee8423a518f8",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.07932982305857511,
                            "NSBH": 0.010906626373933782,
                            "Terrestrial": 0.9097635505674911
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-27T13:49:27Z",
                    "superevent_id": "S230927an",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:13.434223Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:13.434243Z",
                "modified": "2023-09-28T20:54:13.481862Z"
            }
        },
        {
            "id": 1981,
            "sequence_number": 2,
            "sequence_type": "INITIAL",
            "message": {
                "id": 3429,
                "topic": "igwn.gwalert",
                "uuid": "df257fcb-e6c6-4105-971c-c39719c5b8a4",
                "title": "S230927be - INITIAL",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230927be/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230927be/view/"
                    },
                    "event": {
                        "far": 3.167545842243851e-10,
                        "time": "2023-09-27T15:38:32.919Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 136.28030564116324,
                        "area_90": 527.0764091926128,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": true,
                        "skymap_hash": "b902fc512be53f92f4abeb16a3f6e0d3",
                        "classification": {
                            "BBH": 0.9996578739974026,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.00034212600259742043
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "INITIAL",
                    "sequence_num": 2,
                    "time_created": "2023-09-27T16:04:58Z",
                    "superevent_id": "S230927be",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:13.526588Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:13.526608Z",
                "modified": "2023-09-28T20:54:13.531751Z"
            }
        },
        {
            "id": 1982,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3430,
                "topic": "igwn.gwalert",
                "uuid": "4386311e-2849-4c80-bed3-0e802ec6ef8d",
                "title": "S230928r - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230928r/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230928r/view/"
                    },
                    "event": {
                        "far": 1.83963e-05,
                        "time": "2023-09-28T07:18:38.615Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 671.4349161689337,
                        "area_90": 2313.9325798471878,
                        "duration": 0.008964,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "4935bcefde1976450f9002056c72cf67",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 179.484604
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-28T07:24:55Z",
                    "superevent_id": "S230928r",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:13.957937Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:13.957961Z",
                "modified": "2023-09-28T20:54:14.008415Z"
            }
        },
        {
            "id": 1983,
            "sequence_number": 3,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3431,
                "topic": "igwn.gwalert",
                "uuid": "e24b9f8f-186b-47ff-930f-4be67043d7c4",
                "title": "S230927be - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230927be/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230927be/view/"
                    },
                    "event": {
                        "far": 4.563712414670365e-43,
                        "time": "2023-09-27T15:38:32.919Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 119.1796976199857,
                        "area_90": 539.0363436368721,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": true,
                        "skymap_hash": "673b169a72f0fef5947e3b3fc254939c",
                        "classification": {
                            "BBH": 1.0,
                            "BNS": 9.843718345380827e-86,
                            "NSBH": 8.760098442763725e-84,
                            "Terrestrial": 0.0
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 3,
                    "time_created": "2023-09-27T15:39:08Z",
                    "superevent_id": "S230927be",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:14.108803Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:14.108827Z",
                "modified": "2023-09-28T20:54:14.114131Z"
            }
        },
        {
            "id": 1984,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3432,
                "topic": "igwn.gwalert",
                "uuid": "6bfab9fd-afd8-45f1-a62d-08c13dba8081",
                "title": "S230927aq - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230927aq/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230927aq/view/"
                    },
                    "event": {
                        "far": 1.658970459416795e-05,
                        "time": "2023-09-27T13:49:15.705Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 988.2682672361492,
                        "area_90": 3765.0712924172954,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.024214082713417944,
                            "HasMassGap": 0.26719122043901594,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "6b5737fceb839b975c1dd33ab8087c8a",
                        "classification": {
                            "BBH": 0.03992759023161618,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9600724097683838
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-27T13:54:27Z",
                    "superevent_id": "S230927aq",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:19.838465Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:19.838487Z",
                "modified": "2023-09-28T20:54:19.844311Z"
            }
        },
        {
            "id": 1985,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3433,
                "topic": "igwn.gwalert",
                "uuid": "47e12dd7-db82-49d3-b101-5bd7d1a5fc58",
                "title": "S230928r - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230928r/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230928r/view/"
                    },
                    "event": {
                        "far": 1.83963e-05,
                        "time": "2023-09-28T07:18:38.615Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 671.4349161689337,
                        "area_90": 2313.9325798471878,
                        "duration": 0.008964,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "4935bcefde1976450f9002056c72cf67",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 179.484604
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-28T07:20:20Z",
                    "superevent_id": "S230928r",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:19.877913Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:19.877933Z",
                "modified": "2023-09-28T20:54:19.883437Z"
            }
        },
        {
            "id": 1986,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3434,
                "topic": "igwn.gwalert",
                "uuid": "1a7e25ec-ff1c-4d13-b5bb-ec474e264548",
                "title": "S230927bp - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230927bp/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230927bp/view/"
                    },
                    "event": {
                        "far": 1.180186611723138e-05,
                        "time": "2023-09-27T23:12:16.562Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 8061.41546225326,
                        "area_90": 24218.657426213435,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "66eb12a79c80beb3699b40eb337302a4",
                        "classification": {
                            "BBH": 0.1449095256648014,
                            "BNS": 4.302446132363312e-23,
                            "NSBH": 3.722886178203976e-21,
                            "Terrestrial": 0.8550904743351986
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-27T23:17:27Z",
                    "superevent_id": "S230927bp",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:20.123314Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:20.123336Z",
                "modified": "2023-09-28T20:54:20.128442Z"
            }
        },
        {
            "id": 1987,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3435,
                "topic": "igwn.gwalert",
                "uuid": "e00bbec6-a9ed-4e87-a90f-6c0ee7564a26",
                "title": "S230928h - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230928h/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230928h/view/"
                    },
                    "event": {
                        "far": 2.661359985722811e-06,
                        "time": "2023-09-28T05:41:31.578Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1475.897875103837,
                        "area_90": 6885.565065312415,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.05367326492825584,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "c86223cb0f7bdd471544a534bd914e99",
                        "classification": {
                            "BBH": 0.38917153821040884,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.6108284617895912
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-28T05:41:56Z",
                    "superevent_id": "S230928h",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:20.173169Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:20.173189Z",
                "modified": "2023-09-28T20:54:20.179437Z"
            }
        },
        {
            "id": 1988,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3436,
                "topic": "igwn.gwalert",
                "uuid": "b5b16c1e-a136-485e-a40b-5e3933a2b77d",
                "title": "S230928q - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230928q/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230928q/view/"
                    },
                    "event": {
                        "far": 1.269038511964027e-05,
                        "time": "2023-09-28T07:19:50.362Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1329.6509574257914,
                        "area_90": 5630.82106572172,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 0.7302907767790859,
                            "HasMassGap": 0.20193748931542377,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "5458a1264158fdfb74e76d2f3f02c483",
                        "classification": {
                            "BBH": 0.05195601114645304,
                            "BNS": 0.0,
                            "NSBH": 0.1110344080463285,
                            "Terrestrial": 0.8370095808072184
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-28T07:24:55Z",
                    "superevent_id": "S230928q",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:25.606897Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:25.606918Z",
                "modified": "2023-09-28T20:54:25.612483Z"
            }
        },
        {
            "id": 1989,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3437,
                "topic": "igwn.gwalert",
                "uuid": "89e9c4f1-6090-4760-b4fa-f2e95e8bb085",
                "title": "S230927bp - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230927bp/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230927bp/view/"
                    },
                    "event": {
                        "far": 1.180186611723138e-05,
                        "time": "2023-09-27T23:12:16.562Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 8061.41546225326,
                        "area_90": 24218.657426213435,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "66eb12a79c80beb3699b40eb337302a4",
                        "classification": {
                            "BBH": 0.1449095256648014,
                            "BNS": 4.302446132363312e-23,
                            "NSBH": 3.722886178203976e-21,
                            "Terrestrial": 0.8550904743351986
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-27T23:12:52Z",
                    "superevent_id": "S230927bp",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:25.661796Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:25.661816Z",
                "modified": "2023-09-28T20:54:25.667331Z"
            }
        },
        {
            "id": 1990,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3438,
                "topic": "igwn.gwalert",
                "uuid": "e6b133a7-ea1b-4ea7-9959-bf34a739af20",
                "title": "S230928af - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230928af/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230928af/view/"
                    },
                    "event": {
                        "far": 3.543216779133972e-06,
                        "time": "2023-09-28T10:10:25.371Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 584.7778473008806,
                        "area_90": 2124.2522160294634,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.045197539302802466,
                            "HasRemnant": 0.07712956452029447
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "f0837bce517a52cfc5d46d7aa6b46ce8",
                        "classification": {
                            "BBH": 0.002975267619079337,
                            "BNS": 0.0,
                            "NSBH": 0.010686374815633353,
                            "Terrestrial": 0.9863383575652873
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-28T10:10:51Z",
                    "superevent_id": "S230928af",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:25.914689Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:25.914713Z",
                "modified": "2023-09-28T20:54:25.920426Z"
            }
        },
        {
            "id": 1991,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3439,
                "topic": "igwn.gwalert",
                "uuid": "6c3a71b4-80ef-4070-bb85-bba943f27065",
                "title": "S230928as - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230928as/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230928as/view/"
                    },
                    "event": {
                        "far": 3.65936e-06,
                        "time": "2023-09-28T13:40:01.154Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 1533.389489800802,
                        "area_90": 5490.659026971455,
                        "duration": 0.011239,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "f1c5da32ade7a9a557721452bd109dfe",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 55.091793
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-28T13:46:17Z",
                    "superevent_id": "S230928as",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:25.976408Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:25.976430Z",
                "modified": "2023-09-28T20:54:25.981537Z"
            }
        },
        {
            "id": 1992,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3440,
                "topic": "igwn.gwalert",
                "uuid": "f071b86f-af9d-4758-aee3-21e91a005376",
                "title": "S230928h - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230928h/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230928h/view/"
                    },
                    "event": {
                        "far": 2.661359985722811e-06,
                        "time": "2023-09-28T05:41:31.578Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1475.897875103837,
                        "area_90": 6885.565065312415,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.05367326492825584,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "c86223cb0f7bdd471544a534bd914e99",
                        "classification": {
                            "BBH": 0.38917153821040884,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.6108284617895912
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-28T05:46:30Z",
                    "superevent_id": "S230928h",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:26.032417Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:26.032438Z",
                "modified": "2023-09-28T20:54:26.037876Z"
            }
        },
        {
            "id": 1993,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3441,
                "topic": "igwn.gwalert",
                "uuid": "c5eea930-291d-4efe-bf6d-f071355291fa",
                "title": "S230928aj - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230928aj/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230928aj/view/"
                    },
                    "event": {
                        "far": 8.413960833830243e-06,
                        "time": "2023-09-28T10:51:54.383Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 979.4556839614321,
                        "area_90": 3777.6606970954626,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.04020487367039092,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "41d21bfd78d7286130f2d8d141e6ae0f",
                        "classification": {
                            "BBH": 0.20369149801447378,
                            "BNS": 3.919174603294033e-13,
                            "NSBH": 2.6818484532997713e-11,
                            "Terrestrial": 0.7963085019583158
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-28T10:56:53Z",
                    "superevent_id": "S230928aj",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:26.080023Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:26.080042Z",
                "modified": "2023-09-28T20:54:26.085305Z"
            }
        },
        {
            "id": 1994,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3442,
                "topic": "igwn.gwalert",
                "uuid": "f0372643-cdd7-4631-be49-684760afd492",
                "title": "S230928ao - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230928ao/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230928ao/view/"
                    },
                    "event": {
                        "far": 2.222219700342976e-05,
                        "time": "2023-09-28T12:22:41.100Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 101.64632881299619,
                        "area_90": 452.16945135751615,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.10175232275464477,
                            "HasRemnant": 0.5454918813127934
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "32266fe6172789c2677d1d9655d4cd6d",
                        "classification": {
                            "BBH": 0.0037130469882621503,
                            "BNS": 0.0002827336082306574,
                            "NSBH": 0.054044355460175775,
                            "Terrestrial": 0.9419598639433314
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-28T12:27:40Z",
                    "superevent_id": "S230928ao",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:31.442732Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:31.442754Z",
                "modified": "2023-09-28T20:54:31.449168Z"
            }
        },
        {
            "id": 1995,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3443,
                "topic": "igwn.gwalert",
                "uuid": "f13db7e2-c1de-47ac-8922-29123a11d861",
                "title": "S230928ar - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230928ar/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230928ar/view/"
                    },
                    "event": {
                        "far": 8.71996e-06,
                        "time": "2023-09-28T13:40:01.188Z",
                        "group": "Burst",
                        "search": "BBH",
                        "area_50": 1865.749773304424,
                        "area_90": 6073.968110393215,
                        "duration": 0.013159,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "e85d08b7df69e291c4009998b18b155b",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 51.568607
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-28T13:41:28Z",
                    "superevent_id": "S230928ar",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:31.486981Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:31.487001Z",
                "modified": "2023-09-28T20:54:31.492560Z"
            }
        },
        {
            "id": 1996,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3444,
                "topic": "igwn.gwalert",
                "uuid": "6f8bdd1e-38d4-4092-afad-e598f08f60d7",
                "title": "S230928ar - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230928ar/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230928ar/view/"
                    },
                    "event": {
                        "far": 8.71996e-06,
                        "time": "2023-09-28T13:40:01.188Z",
                        "group": "Burst",
                        "search": "BBH",
                        "area_50": 1865.749773304424,
                        "area_90": 6073.968110393215,
                        "duration": 0.013159,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "e85d08b7df69e291c4009998b18b155b",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 51.568607
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-28T13:46:02Z",
                    "superevent_id": "S230928ar",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:31.533078Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:31.533098Z",
                "modified": "2023-09-28T20:54:31.538344Z"
            }
        },
        {
            "id": 1997,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3445,
                "topic": "igwn.gwalert",
                "uuid": "dfe9e0d0-5f9c-47d2-a4a2-8742919c5375",
                "title": "S230928af - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230928af/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230928af/view/"
                    },
                    "event": {
                        "far": 3.543216779133972e-06,
                        "time": "2023-09-28T10:10:25.371Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 584.7778473008806,
                        "area_90": 2124.2522160294634,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.045197539302802466,
                            "HasRemnant": 0.07712956452029447
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "f0837bce517a52cfc5d46d7aa6b46ce8",
                        "classification": {
                            "BBH": 0.002975267619079337,
                            "BNS": 0.0,
                            "NSBH": 0.010686374815633353,
                            "Terrestrial": 0.9863383575652873
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-28T10:15:25Z",
                    "superevent_id": "S230928af",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:31.585737Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:31.585756Z",
                "modified": "2023-09-28T20:54:31.592244Z"
            }
        },
        {
            "id": 1998,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3446,
                "topic": "igwn.gwalert",
                "uuid": "d956f328-1f24-426f-9834-8b55b9567775",
                "title": "S230928ap - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230928ap/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230928ap/view/"
                    },
                    "event": {
                        "far": 6.756058526921909e-06,
                        "time": "2023-09-28T12:22:50.729Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 638.4926405943953,
                        "area_90": 2985.367496016121,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.28881383104040936,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "c6ecc32c90da29e504286a12bfbbc14c",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.00654884789732451,
                            "NSBH": 3.116012685650822e-05,
                            "Terrestrial": 0.993419991975819
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-09-28T12:28:01Z",
                    "superevent_id": "S230928ap",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:31.632494Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:31.632513Z",
                "modified": "2023-09-28T20:54:31.637665Z"
            }
        },
        {
            "id": 1999,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3447,
                "topic": "igwn.gwalert",
                "uuid": "05f78685-19ff-43fa-8966-c37b75bf4179",
                "title": "S230928q - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230928q/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230928q/view/"
                    },
                    "event": {
                        "far": 1.269038511964027e-05,
                        "time": "2023-09-28T07:19:50.362Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1329.6509574257914,
                        "area_90": 5630.82106572172,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 0.7302907767790859,
                            "HasMassGap": 0.20193748931542377,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "5458a1264158fdfb74e76d2f3f02c483",
                        "classification": {
                            "BBH": 0.05195601114645304,
                            "BNS": 0.0,
                            "NSBH": 0.1110344080463285,
                            "Terrestrial": 0.8370095808072184
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-28T07:20:20Z",
                    "superevent_id": "S230928q",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:31.687069Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:31.687088Z",
                "modified": "2023-09-28T20:54:31.692847Z"
            }
        },
        {
            "id": 2000,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 3448,
                "topic": "igwn.gwalert",
                "uuid": "5d941256-fd3f-4e07-a6dd-0d5b683ef9b5",
                "title": "S230928aj - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230928aj/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230928aj/view/"
                    },
                    "event": {
                        "far": 1.74531222946288e-05,
                        "time": "2023-09-28T10:51:54.384Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 971.6922177432289,
                        "area_90": 3757.5176496103945,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.04210230956782681,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "f3d1e0956ae7fb75fad992b02577228e",
                        "classification": {
                            "BBH": 0.08813338451487787,
                            "BNS": 1.784823678850466e-13,
                            "NSBH": 1.2211940024929058e-11,
                            "Terrestrial": 0.9118666154727317
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-09-28T10:52:18Z",
                    "superevent_id": "S230928aj",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-09-28T20:54:31.736265Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-09-28T20:54:31.736285Z",
                "modified": "2023-09-28T20:54:31.741529Z"
            }
        }
    ]
}