GET /api/v0/nonlocalizedeventsequence/?format=api&offset=9800&ordering=sequence_number
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 11124,
    "next": "https://hermes.lco.global/api/v0/nonlocalizedeventsequence/?format=api&limit=100&offset=9900&ordering=sequence_number",
    "previous": "https://hermes.lco.global/api/v0/nonlocalizedeventsequence/?format=api&limit=100&offset=9700&ordering=sequence_number",
    "results": [
        {
            "id": 9473,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 2653118,
                "topic": "igwn.gwalert",
                "uuid": "1b8a4093-fe84-428a-ab81-ea9b2552dcd6",
                "title": "S250802aq - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250802aq/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250802aq/view/"
                    },
                    "event": {
                        "far": 1.1540638297447e-05,
                        "time": "2025-08-02T06:01:44.580Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 359.4275035616823,
                        "area_90": 9893.593489749237,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 0.9093739417501884,
                            "HasMassGap": 0.7101187295643201,
                            "HasRemnant": 0.0025060455540123236
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "525e01fa8efcb3fd99e683700b4d5e69",
                        "classification": {
                            "BBH": 0.02937967571597888,
                            "BNS": 0.0,
                            "NSBH": 0.0017805067069683988,
                            "Terrestrial": 0.9688398175770527
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-02T06:06:44Z",
                    "superevent_id": "S250802aq",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-02T08:14:25.644246Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-02T08:14:25.644269Z",
                "modified": "2025-08-02T08:14:25.655439Z"
            }
        },
        {
            "id": 3788,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6632,
                "topic": "igwn.gwalert",
                "uuid": "90484b2f-3270-439e-afb4-29d2aa25ca53",
                "title": "S240417bd - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240417bd/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240417bd/view/"
                    },
                    "event": {
                        "far": 8.89112e-06,
                        "time": "2024-04-17T11:24:47.872Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 1261.458348752384,
                        "area_90": 4908.189237194904,
                        "duration": 0.014186,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "340768d6ca4aa7d88508b0199d3a6c9f",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 217.720261
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-17T11:30:46Z",
                    "superevent_id": "S240417bd",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-17T11:30:46.382492Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-17T11:30:46.382518Z",
                "modified": "2024-04-17T11:30:46.388494Z"
            }
        },
        {
            "id": 7691,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 173734,
                "topic": "igwn.gwalert",
                "uuid": "992df447-5ae7-4f74-b125-bd86ca4b3f94",
                "title": "S250202c - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250202c/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250202c/view/"
                    },
                    "event": {
                        "far": 4.267317758670915e-06,
                        "time": "2025-02-02T00:26:04.407Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 421.53523330730866,
                        "area_90": 1430.1563714398285,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.8071999428261367,
                            "HasMassGap": 0.44307978816030735,
                            "HasRemnant": 8.82738874794123e-06
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "893576ccd4fef66acf748710e30815c5",
                        "classification": {
                            "BBH": 0.004077948370540908,
                            "BNS": 0.0,
                            "NSBH": 0.007025661393145602,
                            "Terrestrial": 0.9888963902363135
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-02T00:31:08Z",
                    "superevent_id": "S250202c",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-02T00:31:10.088265Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-02T00:31:10.088307Z",
                "modified": "2025-02-02T00:31:10.097032Z"
            }
        },
        {
            "id": 3790,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6641,
                "topic": "igwn.gwalert",
                "uuid": "8cfaa874-460b-47ad-a08a-4d40f6f6664e",
                "title": "S240418q - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240418q/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240418q/view/"
                    },
                    "event": {
                        "far": 2.83723e-06,
                        "time": "2024-04-18T02:22:52.785Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 1540.1038389624916,
                        "area_90": 4595.97200117635,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "742c058e5d5a0bd318fe93fce1c76c1a",
                        "classification": {
                            "BBH": 0.018098604885551817,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9819013951144482
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-18T02:29:00Z",
                    "superevent_id": "S240418q",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-18T02:29:01.686164Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-18T02:29:01.686181Z",
                "modified": "2024-04-18T02:29:01.692093Z"
            }
        },
        {
            "id": 10772,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5784706,
                "topic": "igwn.gwalert",
                "uuid": "83041813-46ac-4baf-bcfa-66a43f4bbe45",
                "title": "S251004bw - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S251004bw/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S251004bw/view/"
                    },
                    "event": {
                        "far": 8.56611e-06,
                        "time": "2025-10-04T17:39:13.811Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 14.477815379892633,
                        "area_90": 54.34426352742306,
                        "duration": 0.131291,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "905fccf0ade91b80b449a3271adf2bb8",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 883.513306
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-10-04T17:46:13Z",
                    "superevent_id": "S251004bw",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-10-04T17:46:14.234373Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-10-04T17:46:14.234392Z",
                "modified": "2025-10-04T17:46:14.244801Z"
            }
        },
        {
            "id": 3792,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6643,
                "topic": "igwn.gwalert",
                "uuid": "efb58061-4297-415b-bca1-820a66877cfd",
                "title": "S240418s - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240418s/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240418s/view/"
                    },
                    "event": {
                        "far": 2.12061e-05,
                        "time": "2024-04-18T02:38:18.041Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 509.24141923187545,
                        "area_90": 1944.6433759542738,
                        "duration": 0.001737,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "eb2f192966a5c6b342a994c3d055f4a7",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 198.856995
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-18T02:44:40Z",
                    "superevent_id": "S240418s",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-18T02:44:41.220624Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-18T02:44:41.220642Z",
                "modified": "2024-04-18T02:44:41.226450Z"
            }
        },
        {
            "id": 7693,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 173768,
                "topic": "igwn.gwalert",
                "uuid": "9d8666ec-fb3d-4b83-af48-ad7853642551",
                "title": "S250202t - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250202t/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250202t/view/"
                    },
                    "event": {
                        "far": 1.659624004544537e-05,
                        "time": "2025-02-02T01:49:42.848Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 543.6524586855334,
                        "area_90": 2051.2336688960922,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "1f325cb7dd06c9ab82abda085cd236f8",
                        "classification": {
                            "BBH": 0.06487244880681146,
                            "BNS": 3.42313555731048e-16,
                            "NSBH": 2.2432155127356483e-14,
                            "Terrestrial": 0.9351275511931658
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-02T01:56:04Z",
                    "superevent_id": "S250202t",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-02T01:56:05.195270Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-02T01:56:05.195310Z",
                "modified": "2025-02-02T01:56:05.212137Z"
            }
        },
        {
            "id": 3794,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6645,
                "topic": "igwn.gwalert",
                "uuid": "04772358-56a8-490a-828a-40a56942d943",
                "title": "S240418w - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240418w/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240418w/view/"
                    },
                    "event": {
                        "far": 1.20018e-05,
                        "time": "2024-04-18T03:10:12.649Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 974.6297455014677,
                        "area_90": 3395.7820885243823,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.01830819377738191,
                            "HasMassGap": 0.43102829479624816,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "df5eed69c744f07bceefa75ef2e810e5",
                        "classification": {
                            "BBH": 0.066347738,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.933652262
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-18T03:15:23Z",
                    "superevent_id": "S240418w",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-18T03:15:24.118315Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-18T03:15:24.118332Z",
                "modified": "2024-04-18T03:15:24.124257Z"
            }
        },
        {
            "id": 9475,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 2673076,
                "topic": "igwn.gwalert",
                "uuid": "ea9d3ef2-5f77-44a6-9d02-281be7e05ab6",
                "title": "S250802at - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250802at/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250802at/view/"
                    },
                    "event": {
                        "far": 3.00126e-06,
                        "time": "2025-08-02T06:56:33.598Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 543.4426352742306,
                        "area_90": 2559.0063242488477,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.028768115942028983,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "59585449adf123ae607cc3731af01e77",
                        "classification": {
                            "BBH": 0.274281299,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.725718701
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-02T06:57:11Z",
                    "superevent_id": "S250802at",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-02T10:41:01.925558Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-02T10:41:01.925581Z",
                "modified": "2025-08-02T10:41:01.936450Z"
            }
        },
        {
            "id": 3796,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6648,
                "topic": "igwn.gwalert",
                "uuid": "1b7ed7b1-b3cc-4a92-970a-d76810e9ccb6",
                "title": "S240418ao - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240418ao/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240418ao/view/"
                    },
                    "event": {
                        "far": 4.49755e-06,
                        "time": "2024-04-18T05:00:41.047Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 3510.7653179183117,
                        "area_90": 10495.367033365645,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.04264138160689884,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "88f151c8b3b698b9b78463efb5b6e378",
                        "classification": {
                            "BBH": 0.013398847892931887,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9866011521070681
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-18T05:06:36Z",
                    "superevent_id": "S240418ao",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-18T05:06:37.725904Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-18T05:06:37.725920Z",
                "modified": "2024-04-18T05:06:37.731933Z"
            }
        },
        {
            "id": 7695,
            "sequence_number": 2,
            "sequence_type": "RETRACTION",
            "message": {
                "id": 173804,
                "topic": "igwn.gwalert",
                "uuid": "c3e699ab-0ad5-48e7-aca4-77a49340b88a",
                "title": "S250202ad - RETRACTION",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "gracedb": "https://gracedb.ligo.org/superevents/S250202ad/view/"
                    },
                    "event": null,
                    "alert_type": "RETRACTION",
                    "sequence_num": 2,
                    "time_created": "2025-02-02T04:38:24Z",
                    "superevent_id": "S250202ad",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-02T04:38:24.521816Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-02T04:38:24.521838Z",
                "modified": "2025-02-02T04:38:24.527110Z"
            }
        },
        {
            "id": 3798,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6656,
                "topic": "igwn.gwalert",
                "uuid": "2063674a-77ef-488a-9a44-8ec84f038f49",
                "title": "S240418de - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240418de/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240418de/view/"
                    },
                    "event": {
                        "far": 8.17543581883138e-07,
                        "time": "2024-04-18T13:49:52.287Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 516.7426061859504,
                        "area_90": 1739.016432877538,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.41182155848509877,
                            "HasRemnant": 0.010009605316737091
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "dcbff2dd3f49cc7de6d143b509b82957",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.004898738714483779,
                            "NSBH": 0.017270710712578227,
                            "Terrestrial": 0.977830550572938
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-18T13:55:01Z",
                    "superevent_id": "S240418de",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-18T13:55:01.928569Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-18T13:55:01.928586Z",
                "modified": "2024-04-18T13:55:01.936829Z"
            }
        },
        {
            "id": 9476,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 2677535,
                "topic": "igwn.gwalert",
                "uuid": "032b7d33-5c1a-4743-9499-ab25facd1f13",
                "title": "S250802av - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "gracedb": "https://gracedb.ligo.org/superevents/S250802av/view/"
                    },
                    "event": {
                        "far": 1.8338335926150642e-05,
                        "time": "2025-08-02T07:02:59.606Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 6681.616709526099,
                        "area_90": 22298.353565970287,
                        "duration": 0.3125,
                        "pipeline": "MLy",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "bf4412687990a94bf11f8bcb403b53c0",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 88.0
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-02T07:08:22Z",
                    "superevent_id": "S250802av",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-02T10:43:00.527679Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-02T10:43:00.527702Z",
                "modified": "2025-08-02T10:43:00.554114Z"
            }
        },
        {
            "id": 3800,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6664,
                "topic": "igwn.gwalert",
                "uuid": "f7b1b53d-a8a6-4494-9738-2b58050783cb",
                "title": "S240418es - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240418es/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240418es/view/"
                    },
                    "event": {
                        "far": 1.684459e-05,
                        "time": "2024-04-18T23:42:40.574Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 698.5021362269937,
                        "area_90": 2537.184689473357,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 6.536254439116618e-05,
                            "HasMassGap": 0.5992433462579165,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "0a03eaf9d4baca3f8871fbc0d8267634",
                        "classification": {
                            "BBH": 0.044269971,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.955730029
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-18T23:47:48Z",
                    "superevent_id": "S240418es",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-18T23:47:48.623109Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-18T23:47:48.623133Z",
                "modified": "2024-04-18T23:47:48.629246Z"
            }
        },
        {
            "id": 7697,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 173831,
                "topic": "igwn.gwalert",
                "uuid": "2c09fba4-86d6-4f59-a755-78517c9d3593",
                "title": "S250202bc - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250202bc/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250202bc/view/"
                    },
                    "event": {
                        "far": 5.900550449836366e-06,
                        "time": "2025-02-02T06:43:23.457Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 601.7735436164068,
                        "area_90": 2235.0389771973378,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "417eb1f5b713b3b2cf80a5f3c6d09fe1",
                        "classification": {
                            "BBH": 0.23146204402839704,
                            "BNS": 1.1390635004801145e-15,
                            "NSBH": 8.230867612481249e-14,
                            "Terrestrial": 0.7685379559715195
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-02T06:48:28Z",
                    "superevent_id": "S250202bc",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-02T06:48:29.350135Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-02T06:48:29.350172Z",
                "modified": "2025-02-02T06:48:29.354670Z"
            }
        },
        {
            "id": 3802,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6671,
                "topic": "igwn.gwalert",
                "uuid": "dbb9c637-8080-4423-8c25-00b335b0ebbc",
                "title": "S240419k - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240419k/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240419k/view/"
                    },
                    "event": {
                        "far": 2.091592e-05,
                        "time": "2024-04-19T03:47:28.848Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 673.1135034593559,
                        "area_90": 3483.0686276263427,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.46582162549291295,
                            "HasRemnant": 0.9179277629873243
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "629251ef1a8fbd34cb263cfd744142a0",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.000239632,
                            "NSBH": 0.000329494,
                            "Terrestrial": 0.999430874
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-19T03:52:34Z",
                    "superevent_id": "S240419k",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-19T03:52:34.890701Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-19T03:52:34.890721Z",
                "modified": "2024-04-19T03:52:34.896426Z"
            }
        },
        {
            "id": 10362,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5777766,
                "topic": "igwn.gwalert",
                "uuid": "01001007-1604-43bb-8eea-1e70525230be",
                "title": "S250911ax - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250911ax/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250911ax/view/"
                    },
                    "event": {
                        "far": 5.51614e-06,
                        "time": "2025-09-11T09:05:02.508Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 1730.6234964254263,
                        "area_90": 5969.05640474182,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "77ff7db80b44e4b1611b8ad09fbc80db",
                        "classification": {
                            "BBH": 0.004205919583048945,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.995794080416951
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-09-11T09:11:09Z",
                    "superevent_id": "S250911ax",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-09-11T09:11:11.081400Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-09-11T09:11:11.081424Z",
                "modified": "2025-09-11T09:11:11.204167Z"
            }
        },
        {
            "id": 3804,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6674,
                "topic": "igwn.gwalert",
                "uuid": "6c2bd0f6-f23a-4a97-afa6-85db6c36af0c",
                "title": "S240419n - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240419n/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240419n/view/"
                    },
                    "event": {
                        "far": 1.41791e-07,
                        "time": "2024-04-19T04:12:06.504Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 2416.32640456295,
                        "area_90": 8123.523191998885,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.038534798534798534,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "70df9954c5cea1a9e2fc01405d0b4d0e",
                        "classification": {
                            "BBH": 0.16036651804678803,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.839633481953212
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-19T04:18:28Z",
                    "superevent_id": "S240419n",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-19T04:18:28.710225Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-19T04:18:28.710242Z",
                "modified": "2024-04-19T04:18:28.716155Z"
            }
        },
        {
            "id": 7699,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 173851,
                "topic": "igwn.gwalert",
                "uuid": "f44e44a9-ad8e-4f1f-8b0c-d8bf0a98e6ac",
                "title": "S250202bl - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250202bl/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250202bl/view/"
                    },
                    "event": {
                        "far": 1.73122e-05,
                        "time": "2025-02-02T07:38:08.504Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 302.1457122760201,
                        "area_90": 850.2044625989121,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "394e72d0b260e3a342d55d554d37350b",
                        "classification": {
                            "BBH": 0.0012770864256199665,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.99872291357438
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-02T07:43:50Z",
                    "superevent_id": "S250202bl",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-02T07:43:50.510563Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-02T07:43:50.510604Z",
                "modified": "2025-02-02T07:43:50.540252Z"
            }
        },
        {
            "id": 3806,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6678,
                "topic": "igwn.gwalert",
                "uuid": "40fbc9b6-9f30-4f1e-9b77-4dbb4c75889e",
                "title": "S240419z - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240419z/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240419z/view/"
                    },
                    "event": {
                        "far": 1.758399723404829e-05,
                        "time": "2024-04-19T06:42:47.174Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 328.42609454169485,
                        "area_90": 1455.9646510300718,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.13331166678602055,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "ebf9722d353034fac8e0c02bfe386603",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.00011969403663904339,
                            "NSBH": 0.0012583755478409028,
                            "Terrestrial": 0.99862193041552
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-19T06:47:54Z",
                    "superevent_id": "S240419z",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-19T06:47:55.679169Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-19T06:47:55.679189Z",
                "modified": "2024-04-19T06:47:55.685109Z"
            }
        },
        {
            "id": 9478,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 2681682,
                "topic": "igwn.gwalert",
                "uuid": "44d8c912-1bb2-4799-8185-edca731ba6b6",
                "title": "S250802cc - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250802cc/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250802cc/view/"
                    },
                    "event": {
                        "far": 1.23386e-05,
                        "time": "2025-08-02T09:39:05.625Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 220.73422869053692,
                        "area_90": 713.3995984294919,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005275362318840579,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "3b8295c3e37de963c53d45d474c38f15",
                        "classification": {
                            "BBH": 0.0015903806881019111,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9984096193118981
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-02T09:45:01Z",
                    "superevent_id": "S250802cc",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-02T10:44:48.719523Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-02T10:44:48.719544Z",
                "modified": "2025-08-02T10:44:48.740734Z"
            }
        },
        {
            "id": 3808,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6688,
                "topic": "igwn.gwalert",
                "uuid": "7443b168-5801-43bc-89b2-a2cf8a0a3334",
                "title": "S240419bs - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240419bs/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240419bs/view/"
                    },
                    "event": {
                        "far": 2.22739e-06,
                        "time": "2024-04-19T15:12:15.395Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 2670.6323790619335,
                        "area_90": 7870.056511145112,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "8eea44a4cc061b98fb7da834425eca0a",
                        "classification": {
                            "BBH": 0.02059368404388895,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.979406315956111
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-19T15:18:41Z",
                    "superevent_id": "S240419bs",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-19T15:18:42.639968Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-19T15:18:42.639983Z",
                "modified": "2024-04-19T15:18:42.645796Z"
            }
        },
        {
            "id": 7701,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 173995,
                "topic": "igwn.gwalert",
                "uuid": "ec024e5f-754e-4790-bf79-0a1e9e0152d9",
                "title": "S250202cu - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250202cu/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250202cu/view/"
                    },
                    "event": {
                        "far": 1.460237378613981e-08,
                        "time": "2025-02-02T18:49:02.510Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1204.5962042893273,
                        "area_90": 4326.558741063566,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.04264138160689884,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": true,
                        "skymap_hash": "64c244ffe5acacffd13a349f4a9dc645",
                        "classification": {
                            "BBH": 0.9901415415731157,
                            "BNS": 1.2466017097087266e-15,
                            "NSBH": 9.024350547559485e-14,
                            "Terrestrial": 0.009858458426792782
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-02T18:54:11Z",
                    "superevent_id": "S250202cu",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-02T18:54:12.329344Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-02T18:54:12.329380Z",
                "modified": "2025-02-02T18:54:12.336166Z"
            }
        },
        {
            "id": 3810,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6692,
                "topic": "igwn.gwalert",
                "uuid": "7be6f46f-b1ee-46f3-a8bc-464c662264e5",
                "title": "S240419bz - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240419bz/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240419bz/view/"
                    },
                    "event": {
                        "far": 1.202210348965231e-05,
                        "time": "2024-04-19T15:55:13.819Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 349.8805383474053,
                        "area_90": 1490.5855138950324,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.5180593295593295,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "0033fa46b4c2e6a59b2d302d88df276f",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.0011246533089426423,
                            "NSBH": 0.0011144018354280853,
                            "Terrestrial": 0.9977609448556293
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-19T16:00:36Z",
                    "superevent_id": "S240419bz",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-19T16:00:37.950899Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-19T16:00:37.950917Z",
                "modified": "2024-04-19T16:00:37.956922Z"
            }
        },
        {
            "id": 3812,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6694,
                "topic": "igwn.gwalert",
                "uuid": "e87b8fb6-70c2-45fc-86af-a1334da29b98",
                "title": "S240419cb - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240419cb/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240419cb/view/"
                    },
                    "event": {
                        "far": 1.34577e-05,
                        "time": "2024-04-19T15:58:28.105Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 1164.1002859078885,
                        "area_90": 3553.5692938240813,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.03369230769230769,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "20d8e1f5106443b9a8f194b92af7fc0d",
                        "classification": {
                            "BBH": 0.0015106838812946055,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9984893161187054
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-19T16:06:11Z",
                    "superevent_id": "S240419cb",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-19T16:06:12.574680Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-19T16:06:12.574696Z",
                "modified": "2024-04-19T16:06:12.580975Z"
            }
        },
        {
            "id": 11116,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5799043,
                "topic": "igwn.gwalert",
                "uuid": "29116d8e-f0df-4f7b-b25e-bfb212f033e2",
                "title": "S251116af - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S251116af/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S251116af/view/"
                    },
                    "event": {
                        "far": 3.68656e-06,
                        "time": "2025-11-16T04:14:38.824Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 757.8821616256839,
                        "area_90": 2548.095506861103,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "214793e3c9a5f623b4ae1b044a7a3d28",
                        "classification": {
                            "BBH": 0.007359550731159459,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9926404492688405
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-11-16T04:20:38Z",
                    "superevent_id": "S251116af",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-11-16T04:20:39.775991Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-11-16T04:20:39.776015Z",
                "modified": "2025-11-16T04:20:39.791864Z"
            }
        },
        {
            "id": 3814,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6700,
                "topic": "igwn.gwalert",
                "uuid": "311e2a96-ef59-4ee0-96f7-f54c074f2636",
                "title": "S240419co - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240419co/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240419co/view/"
                    },
                    "event": {
                        "far": 1.651877607008724e-05,
                        "time": "2024-04-19T17:59:02.680Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 660.5240987811884,
                        "area_90": 4293.826288900331,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.018157865123382366,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "e4abd30fcd1d4d996b5fc77271c94bf0",
                        "classification": {
                            "BBH": 0.0778337336190722,
                            "BNS": 4.885587830053306e-13,
                            "NSBH": 3.992896141098068e-11,
                            "Terrestrial": 0.9221662663405102
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-19T18:04:18Z",
                    "superevent_id": "S240419co",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-19T18:04:19.593771Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-19T18:04:19.593791Z",
                "modified": "2024-04-19T18:04:19.599575Z"
            }
        },
        {
            "id": 7704,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 174035,
                "topic": "igwn.gwalert",
                "uuid": "be5bac42-e2e4-497d-be09-4073392901c2",
                "title": "S250202dd - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250202dd/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250202dd/view/"
                    },
                    "event": {
                        "far": 1.725189940771088e-05,
                        "time": "2025-02-02T21:20:01.831Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 4334.951677515677,
                        "area_90": 25400.382878670756,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "99035ce882ad7bad25e1bcd09c5bc58a",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.0023348824376031472,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9976651175623968
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-02T21:25:03Z",
                    "superevent_id": "S250202dd",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-02T21:25:04.776401Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-02T21:25:04.776436Z",
                "modified": "2025-02-02T21:25:04.787080Z"
            }
        },
        {
            "id": 3816,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6702,
                "topic": "igwn.gwalert",
                "uuid": "0926ee71-5886-43c9-935d-52e55f032463",
                "title": "S240419cs - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240419cs/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240419cs/view/"
                    },
                    "event": {
                        "far": 1.77552e-05,
                        "time": "2024-04-19T18:23:53.100Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 338.2353390201003,
                        "area_90": 1226.2080156535148,
                        "duration": 0.074314,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "ea97eda78d5d853c3faeb6833792a8b3",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 457.327148
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-19T18:29:57Z",
                    "superevent_id": "S240419cs",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-19T18:29:58.208032Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-19T18:29:58.208048Z",
                "modified": "2024-04-19T18:29:58.215504Z"
            }
        },
        {
            "id": 10364,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5777772,
                "topic": "igwn.gwalert",
                "uuid": "cbb20467-c1b7-4c26-b54e-485317a8e031",
                "title": "S250911bf - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250911bf/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250911bf/view/"
                    },
                    "event": {
                        "far": 2.12934e-05,
                        "time": "2025-09-11T09:30:06.522Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 88.12583274717254,
                        "area_90": 307.18147414728713,
                        "duration": 0.008643,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "a60cf09546588e9136db1adcfdb36e4e",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 317.309143
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-09-11T09:37:10Z",
                    "superevent_id": "S250911bf",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-09-11T09:37:11.075365Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-09-11T09:37:11.075403Z",
                "modified": "2025-09-11T09:37:11.085512Z"
            }
        },
        {
            "id": 3818,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6704,
                "topic": "igwn.gwalert",
                "uuid": "af677252-5e03-4234-9654-d07361e20958",
                "title": "S240419cz - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240419cz/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240419cz/view/"
                    },
                    "event": {
                        "far": 1.189920271097325e-05,
                        "time": "2024-04-19T18:58:57.400Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 388.2257667629905,
                        "area_90": 1407.9150898417327,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.942026158598369,
                            "HasMassGap": 0.28747535307829425,
                            "HasRemnant": 0.02075460072911461
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "89c5c00f6df2fd369388dde22c93397f",
                        "classification": {
                            "BBH": 0.00026340656175607226,
                            "BNS": 0.0,
                            "NSBH": 0.001954261920700009,
                            "Terrestrial": 0.9977823315175439
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-19T19:04:04Z",
                    "superevent_id": "S240419cz",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-19T19:04:04.579449Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-19T19:04:04.579464Z",
                "modified": "2024-04-19T19:04:04.585351Z"
            }
        },
        {
            "id": 119,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 322,
                "topic": "igwn.gwalert",
                "uuid": "f71c4d21-c717-479f-b85e-bf4a3cb6b5bb",
                "title": "S230617bc - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S230617bc/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S230617bc/view/"
                    },
                    "event": {
                        "far": 1.757660470502742e-06,
                        "time": "2023-06-17T22:16:07.081Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 545.7506927985613,
                        "area_90": 2094.0376448018615,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.022579365079365078,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "0a99d595ce67cb111a87015c9f28db3d",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.2683332837284786,
                            "NSBH": 0.0734203065051879,
                            "Terrestrial": 0.6582464097663335
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2023-06-17T22:21:13Z",
                    "superevent_id": "S230617bc",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-06-17T22:21:14.196806Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-06-17T22:21:14.196834Z",
                "modified": "2023-06-17T22:21:14.201876Z"
            }
        },
        {
            "id": 7706,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 174111,
                "topic": "igwn.gwalert",
                "uuid": "40f37d0b-ce8b-4344-9863-5abcbcab2e10",
                "title": "S250203ab - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250203ab/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250203ab/view/"
                    },
                    "event": {
                        "far": 1.56823e-05,
                        "time": "2025-02-03T02:44:33.536Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 349.9854500530567,
                        "area_90": 2042.0014387987687,
                        "duration": 0.058797,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "79aefc83400d4a1d450f0cd9dbc8c719",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 995.453491
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-03T02:53:28Z",
                    "superevent_id": "S250203ab",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-03T02:53:28.700750Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-03T02:53:28.700773Z",
                "modified": "2025-02-03T02:53:28.708786Z"
            }
        },
        {
            "id": 3821,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6709,
                "topic": "igwn.gwalert",
                "uuid": "d4e28bd8-75e0-402e-962f-69e6f61f1e3c",
                "title": "S240420c - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240420c/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240420c/view/"
                    },
                    "event": {
                        "far": 1.184928979825197e-06,
                        "time": "2024-04-20T00:34:04.366Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1483.8711647333434,
                        "area_90": 5068.494323430237,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.04264138160689884,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "92e5ec5631acd816939bb0b8f386dd28",
                        "classification": {
                            "BBH": 0.6512698995687429,
                            "BNS": 7.302858387745579e-13,
                            "NSBH": 5.508134076061659e-11,
                            "Terrestrial": 0.3487301003754454
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-20T00:39:08Z",
                    "superevent_id": "S240420c",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-20T00:39:09.274702Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-20T00:39:09.274721Z",
                "modified": "2024-04-20T00:39:09.280541Z"
            }
        },
        {
            "id": 9481,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 2681685,
                "topic": "igwn.gwalert",
                "uuid": "408a480e-8fd9-4608-a3f5-af1e508b2a70",
                "title": "S250802cf - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250802cf/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250802cf/view/"
                    },
                    "event": {
                        "far": 1.43528e-05,
                        "time": "2025-08-02T09:58:03.463Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 519.5227663857123,
                        "area_90": 3374.7997473941023,
                        "duration": 0.00499,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "92c0393b39c16ec577f1cf969a6968d4",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 1239.758545
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-02T10:05:23Z",
                    "superevent_id": "S250802cf",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-02T10:44:49.065115Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-02T10:44:49.065137Z",
                "modified": "2025-08-02T10:44:49.121878Z"
            }
        },
        {
            "id": 3823,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6711,
                "topic": "igwn.gwalert",
                "uuid": "0d510e63-89e0-41f5-a49c-53bda9ae628b",
                "title": "S240420o - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240420o/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240420o/view/"
                    },
                    "event": {
                        "far": 2.84391e-06,
                        "time": "2024-04-20T02:18:57.004Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 1469.6031727647535,
                        "area_90": 4566.59672359396,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.04264138160689884,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "10beac5cfbd4798376a7eab46192db4c",
                        "classification": {
                            "BBH": 0.008123587774871543,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9918764122251285
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-20T02:25:33Z",
                    "superevent_id": "S240420o",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-20T02:25:33.868461Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-20T02:25:33.868476Z",
                "modified": "2024-04-20T02:25:33.874277Z"
            }
        },
        {
            "id": 7708,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 174120,
                "topic": "igwn.gwalert",
                "uuid": "cd8ac1d7-14f4-4fa8-bb54-2e440fa9d64f",
                "title": "S250203ag - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250203ag/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250203ag/view/"
                    },
                    "event": {
                        "far": 1.08149e-05,
                        "time": "2025-02-03T03:22:26.519Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 606.8093054876737,
                        "area_90": 2145.2345571597425,
                        "duration": 0.022018,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "b99cba9a6fb6ccc95ec4662736e5b9e3",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 149.767014
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-03T03:31:04Z",
                    "superevent_id": "S250203ag",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-03T03:31:04.909085Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-03T03:31:04.909121Z",
                "modified": "2025-02-03T03:31:04.914373Z"
            }
        },
        {
            "id": 3825,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6713,
                "topic": "igwn.gwalert",
                "uuid": "669bc901-7433-46d1-9ebf-a0cc7fec51f7",
                "title": "S240420p - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240420p/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240420p/view/"
                    },
                    "event": {
                        "far": 1.596991e-05,
                        "time": "2024-04-20T02:36:05.598Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1172.4932223600003,
                        "area_90": 4042.877488982191,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.15065412550689056,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "7a58957709807d2a11e9a19e61200ef8",
                        "classification": {
                            "BBH": 0.047336018,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.952663982
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-20T02:41:15Z",
                    "superevent_id": "S240420p",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-20T02:41:16.441412Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-20T02:41:16.441428Z",
                "modified": "2024-04-20T02:41:16.447271Z"
            }
        },
        {
            "id": 3827,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6715,
                "topic": "igwn.gwalert",
                "uuid": "7d044c09-9350-465b-b163-0be5445f720d",
                "title": "S240420u - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240420u/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240420u/view/"
                    },
                    "event": {
                        "far": 1.114694e-05,
                        "time": "2024-04-20T03:14:29.760Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 424.6301286240248,
                        "area_90": 2014.304748506801,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.4067329464609947,
                            "HasRemnant": 0.009815401036825584
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "cc69c114b676a4a32f687975ec7bb9bf",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.000603631,
                            "NSBH": 0.000402421,
                            "Terrestrial": 0.998993948
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-20T03:19:39Z",
                    "superevent_id": "S240420u",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-20T03:19:40.222359Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-20T03:19:40.222373Z",
                "modified": "2024-04-20T03:19:40.229876Z"
            }
        },
        {
            "id": 10774,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5784759,
                "topic": "igwn.gwalert",
                "uuid": "f900b311-a3c1-4cb6-8ada-6a8c5a0762cd",
                "title": "S251004cf - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S251004cf/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S251004cf/view/"
                    },
                    "event": {
                        "far": 2.288341398180999e-05,
                        "time": "2025-10-04T22:15:28.594Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1892.187523128576,
                        "area_90": 5796.1619138283195,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.030886006576543657,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "d2ad55151c480d2657120324302379ea",
                        "classification": {
                            "BBH": 0.05370840050592235,
                            "BNS": 1.0552448593349713e-12,
                            "NSBH": 7.872460974669097e-11,
                            "Terrestrial": 0.9462915994142977
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-10-04T22:20:27Z",
                    "superevent_id": "S251004cf",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-10-04T22:20:28.296500Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-10-04T22:20:28.296520Z",
                "modified": "2025-10-04T22:20:28.308826Z"
            }
        },
        {
            "id": 7712,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 174143,
                "topic": "igwn.gwalert",
                "uuid": "67e172ea-2935-466d-8eae-7ced4a7a1276",
                "title": "S250203ap - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250203ap/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250203ap/view/"
                    },
                    "event": {
                        "far": 1.691799e-05,
                        "time": "2025-02-03T04:31:04.528Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 279.0126811798873,
                        "area_90": 1748.248662974861,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.054145363408521295,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "44a42798948aca15564fc14254073ab2",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.000777004,
                            "NSBH": 0.000120867,
                            "Terrestrial": 0.999102129
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-03T04:36:08Z",
                    "superevent_id": "S250203ap",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-03T04:36:09.672111Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-03T04:36:09.672133Z",
                "modified": "2025-02-03T04:36:09.675444Z"
            }
        },
        {
            "id": 9483,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 2704698,
                "topic": "igwn.gwalert",
                "uuid": "a99ce5d0-d419-40da-8b37-b0084bad597b",
                "title": "S250802bl - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250802bl/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250802bl/view/"
                    },
                    "event": {
                        "far": 9.716842935850564e-06,
                        "time": "2025-08-02T08:07:25.485Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 350.5624644341393,
                        "area_90": 1691.176695100501,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.00018089717438621354,
                            "HasMassGap": 0.13678299195616683,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "7ba432ca020e5988b4c7abe9a17addb5",
                        "classification": {
                            "BBH": 0.14245710324892852,
                            "BNS": 7.959563028602743e-19,
                            "NSBH": 0.0002450756916931966,
                            "Terrestrial": 0.8572978210593782
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-02T08:12:26Z",
                    "superevent_id": "S250802bl",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-02T10:51:08.993550Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-02T10:51:08.993574Z",
                "modified": "2025-08-02T10:51:08.998443Z"
            }
        },
        {
            "id": 7714,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 174188,
                "topic": "igwn.gwalert",
                "uuid": "1b094ce7-23f9-44fd-bf45-0cf3ec0f28f7",
                "title": "S250203bd - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250203bd/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250203bd/view/"
                    },
                    "event": {
                        "far": 9.903113896015181e-06,
                        "time": "2025-02-03T07:30:26.263Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 584.9876707121834,
                        "area_90": 2913.1882425279605,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.048525538187302895,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "c4c2d1d09481fdad267723b68218bf45",
                        "classification": {
                            "BBH": 0.11534971471598264,
                            "BNS": 7.176540201909263e-17,
                            "NSBH": 4.275604599100282e-15,
                            "Terrestrial": 0.884650285284013
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-03T07:38:08Z",
                    "superevent_id": "S250203bd",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-03T07:38:09.023295Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-03T07:38:09.023316Z",
                "modified": "2025-02-03T07:38:09.029085Z"
            }
        },
        {
            "id": 9484,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 2705295,
                "topic": "igwn.gwalert",
                "uuid": "10f45c86-3f01-4123-8809-db6aaa1b195c",
                "title": "S250802ch - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250802ch/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250802ch/view/"
                    },
                    "event": {
                        "far": 1.349139874186076e-05,
                        "time": "2025-08-02T10:22:09.661Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 302.6702708042771,
                        "area_90": 1347.695770797831,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.006227743271221532,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "419c1ede51353a0c2232dd7f02e7790c",
                        "classification": {
                            "BBH": 0.10632796522657639,
                            "BNS": 1.0418474371591129e-18,
                            "NSBH": 6.539579982491051e-17,
                            "Terrestrial": 0.8936720347734235
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-02T10:27:09Z",
                    "superevent_id": "S250802ch",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-02T10:51:22.190338Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-02T10:51:22.190361Z",
                "modified": "2025-08-02T10:51:22.195092Z"
            }
        },
        {
            "id": 7716,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 174371,
                "topic": "igwn.gwalert",
                "uuid": "ffed4655-655e-4db8-9d77-e59d559f955c",
                "title": "S250203bw - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250203bw/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250203bw/view/"
                    },
                    "event": {
                        "far": 7.96447e-06,
                        "time": "2025-02-03T11:29:13.504Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 558.9695677106372,
                        "area_90": 2026.8941531849675,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.00013574117668404745,
                            "HasMassGap": 0.20618515746379523,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "d66c7d1d1ff2dd14c28dae0660df80cb",
                        "classification": {
                            "BBH": 0.002952117744070115,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9970478822559299
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-03T11:34:34Z",
                    "superevent_id": "S250203bw",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-03T11:34:34.426828Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-03T11:34:34.426871Z",
                "modified": "2025-02-03T11:34:34.434397Z"
            }
        },
        {
            "id": 10366,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5777777,
                "topic": "igwn.gwalert",
                "uuid": "f814a868-2d19-4790-a48f-1ef2dee77b2b",
                "title": "S250911bl - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250911bl/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250911bl/view/"
                    },
                    "event": {
                        "far": 1.65267e-06,
                        "time": "2025-09-11T09:47:15.969Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 454.89715570445253,
                        "area_90": 1628.229671709664,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005275362318840579,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "4c5758a926e6b70c468f53f2e6d7584d",
                        "classification": {
                            "BBH": 0.020463569752304234,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9795364302476958
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-09-11T09:53:48Z",
                    "superevent_id": "S250911bl",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-09-11T09:53:49.504637Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-09-11T09:53:49.504670Z",
                "modified": "2025-09-11T09:53:49.515857Z"
            }
        },
        {
            "id": 3836,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6724,
                "topic": "igwn.gwalert",
                "uuid": "ab040ab3-fbfc-4fff-8bf3-bc0a5c08093b",
                "title": "S240420ad - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240420ad/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240420ad/view/"
                    },
                    "event": {
                        "far": 1.469090362257035e-07,
                        "time": "2024-04-20T04:19:35.260Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 439.003032298266,
                        "area_90": 1780.7712917267936,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.11806309702247918,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "5897d99ab0690c8fccf2a20fe1f7dc47",
                        "classification": {
                            "BBH": 0.934509132836421,
                            "BNS": 1.3161158118488599e-28,
                            "NSBH": 9.265800697940519e-27,
                            "Terrestrial": 0.06549086716357899
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-20T04:24:53Z",
                    "superevent_id": "S240420ad",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-20T04:24:53.833705Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-20T04:24:53.833719Z",
                "modified": "2024-04-20T04:24:53.839501Z"
            }
        },
        {
            "id": 3837,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6725,
                "topic": "igwn.gwalert",
                "uuid": "361bdacc-796d-43c3-96a0-dd6f057075fd",
                "title": "S240420ai - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240420ai/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240420ai/view/"
                    },
                    "event": {
                        "far": 1.547465300579701e-06,
                        "time": "2024-04-20T04:20:24.101Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 59.7734442948828,
                        "area_90": 195.9750661568075,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "362efff6c354b69dfeb37748b50a46a3",
                        "classification": {
                            "BBH": 0.6026009381208172,
                            "BNS": 8.352907339609674e-19,
                            "NSBH": 6.761767545539419e-17,
                            "Terrestrial": 0.3973990618791827
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-20T04:26:22Z",
                    "superevent_id": "S240420ai",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-20T04:26:23.052210Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-20T04:26:23.052225Z",
                "modified": "2024-04-20T04:26:23.058222Z"
            }
        },
        {
            "id": 3838,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6726,
                "topic": "igwn.gwalert",
                "uuid": "027b233d-ef9c-42d5-a8c1-20c370839e81",
                "title": "S240420aj - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240420aj/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240420aj/view/"
                    },
                    "event": {
                        "far": 5.02163e-06,
                        "time": "2024-04-20T04:19:12.871Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 125.05475313646389,
                        "area_90": 433.0755209289622,
                        "duration": 0.011539,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "5b255dd4a284f05ed3eb4e6234f9821b",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 674.228333
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-20T04:26:41Z",
                    "superevent_id": "S240420aj",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-20T04:26:42.110278Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-20T04:26:42.110294Z",
                "modified": "2024-04-20T04:26:42.118035Z"
            }
        },
        {
            "id": 3839,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6727,
                "topic": "igwn.gwalert",
                "uuid": "14273659-cbbd-4757-b4af-9e5c4bf305b2",
                "title": "S240420ak - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240420ak/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240420ak/view/"
                    },
                    "event": {
                        "far": 6.998270116568196e-06,
                        "time": "2024-04-20T04:20:34.945Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 342.0646162763762,
                        "area_90": 1485.3399286124627,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.012712917913729273,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "d38e484f58d989d08645d55eca767990",
                        "classification": {
                            "BBH": 0.23893841702956678,
                            "BNS": 1.0990667631278151e-16,
                            "NSBH": 7.426232464472544e-15,
                            "Terrestrial": 0.7610615829704257
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-20T04:27:11Z",
                    "superevent_id": "S240420ak",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-20T04:27:12.193337Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-20T04:27:12.193360Z",
                "modified": "2024-04-20T04:27:12.199289Z"
            }
        },
        {
            "id": 7718,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 174375,
                "topic": "igwn.gwalert",
                "uuid": "889ac67b-0a63-4900-b760-d94ee5a031f6",
                "title": "S250203cd - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250203cd/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250203cd/view/"
                    },
                    "event": {
                        "far": 2.282607e-05,
                        "time": "2025-02-03T11:39:04.914Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 482.3315667322925,
                        "area_90": 1605.1490964663567,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.05987346477052359,
                            "HasRemnant": 0.8694910748159262
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "fde698fae0689c75f90a3e051d746309",
                        "classification": {
                            "BBH": 9.3275e-05,
                            "BNS": 2.3319e-05,
                            "NSBH": 0.000443056,
                            "Terrestrial": 0.999440351
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-03T11:44:12Z",
                    "superevent_id": "S250203cd",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-03T11:44:13.650158Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-03T11:44:13.650180Z",
                "modified": "2025-02-03T11:44:13.657093Z"
            }
        },
        {
            "id": 3841,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6729,
                "topic": "igwn.gwalert",
                "uuid": "15e727fd-ad19-4b0f-a3a0-20336855d639",
                "title": "S240420al - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240420al/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240420al/view/"
                    },
                    "event": {
                        "far": 3.974135929925831e-06,
                        "time": "2024-04-20T04:20:55.878Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1069.6797508216325,
                        "area_90": 4865.385261289135,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.026260429225946468,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "9bdaae33319c6e9288af5b5faf3ff598",
                        "classification": {
                            "BBH": 0.39639396956316386,
                            "BNS": 8.690981742468756e-17,
                            "NSBH": 6.6100284787456545e-15,
                            "Terrestrial": 0.6036060304368294
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-20T04:28:07Z",
                    "superevent_id": "S240420al",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-20T04:28:08.339151Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-20T04:28:08.339166Z",
                "modified": "2024-04-20T04:28:08.345484Z"
            }
        },
        {
            "id": 3842,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6730,
                "topic": "igwn.gwalert",
                "uuid": "1fe4b5d9-ba73-413e-94d0-bc7a18f873ea",
                "title": "S240420am - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240420am/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240420am/view/"
                    },
                    "event": {
                        "far": 3.72533e-07,
                        "time": "2024-04-20T04:19:20.687Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 53.5049698822119,
                        "area_90": 322.4985831723909,
                        "duration": 0.064278,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "81113847b9e928165fb69355e9ade5fa",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 494.203094
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-20T04:28:25Z",
                    "superevent_id": "S240420am",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-20T04:28:26.396314Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-20T04:28:26.396330Z",
                "modified": "2024-04-20T04:28:26.402094Z"
            }
        },
        {
            "id": 3843,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6731,
                "topic": "igwn.gwalert",
                "uuid": "b3e5a546-ec18-4b70-a3d9-d7c3aa89a940",
                "title": "S240420an - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240420an/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240420an/view/"
                    },
                    "event": {
                        "far": 2.005039186320487e-05,
                        "time": "2024-04-20T04:21:35.336Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1032.1213601984327,
                        "area_90": 3382.353390201003,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.018157865123382366,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "5f1067e0b1d3a3166d2a176d2d6fcfe2",
                        "classification": {
                            "BBH": 0.05824638946089793,
                            "BNS": 6.290175077231478e-16,
                            "NSBH": 5.0965806775732316e-14,
                            "Terrestrial": 0.9417536105390505
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-20T04:29:23Z",
                    "superevent_id": "S240420an",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-20T04:29:23.498276Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-20T04:29:23.498293Z",
                "modified": "2024-04-20T04:29:23.504327Z"
            }
        },
        {
            "id": 3844,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6732,
                "topic": "igwn.gwalert",
                "uuid": "8642aa0c-5a5c-430d-bd95-16a9d60f071f",
                "title": "S240420ap - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240420ap/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240420ap/view/"
                    },
                    "event": {
                        "far": 1.402169180879583e-05,
                        "time": "2024-04-20T04:21:37.440Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 429.7183463481175,
                        "area_90": 4471.756541685098,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.014051282051282053,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "e558815bd44840d7ca9ebe9aa5131017",
                        "classification": {
                            "BBH": 0.10024604498364667,
                            "BNS": 8.38735750328333e-18,
                            "NSBH": 6.650691966618892e-16,
                            "Terrestrial": 0.8997539550163527
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-20T04:29:28Z",
                    "superevent_id": "S240420ap",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-20T04:29:29.549244Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-20T04:29:29.549260Z",
                "modified": "2024-04-20T04:29:29.555048Z"
            }
        },
        {
            "id": 9486,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 2714130,
                "topic": "igwn.gwalert",
                "uuid": "e035dc7d-47f8-47a4-b71e-ac9da0517b53",
                "title": "S250802cr - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250802cr/files/cwb.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250802cr/view/"
                    },
                    "event": {
                        "far": 3.06394e-06,
                        "time": "2025-08-02T11:30:52.529Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 400.34306876572674,
                        "area_90": 2202.306525034102,
                        "duration": 0.130903,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "5809b6f8a68466e8bc9cf7d695f0e2a1",
                        "classification": {},
                        "skymap_version": 1,
                        "central_frequency": 112.204369
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-02T11:36:44Z",
                    "superevent_id": "S250802cr",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-02T13:55:59.136071Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-02T13:55:59.136093Z",
                "modified": "2025-08-02T13:55:59.158327Z"
            }
        },
        {
            "id": 7720,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 174387,
                "topic": "igwn.gwalert",
                "uuid": "dc539c03-2715-4a76-a421-2f53a1d6b09e",
                "title": "S250203cl - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250203cl/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250203cl/view/"
                    },
                    "event": {
                        "far": 1.102202499018146e-05,
                        "time": "2025-02-03T12:40:05.578Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1015.7551341168149,
                        "area_90": 4423.9168039080605,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.09276373557245059,
                            "HasMassGap": 0.04264138160689884,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "fe5010f61189dba6ec33ca44eeafd257",
                        "classification": {
                            "BBH": 0.10587088763379865,
                            "BNS": 6.152222449190933e-18,
                            "NSBH": 4.842728761223308e-16,
                            "Terrestrial": 0.8941291123662009
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-03T12:45:14Z",
                    "superevent_id": "S250203cl",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-03T12:45:15.682448Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-03T12:45:15.682516Z",
                "modified": "2025-02-03T12:45:15.690544Z"
            }
        },
        {
            "id": 3847,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6735,
                "topic": "igwn.gwalert",
                "uuid": "4a321c34-dc52-4d79-abcb-40328b8bb448",
                "title": "S240420aw - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240420aw/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240420aw/view/"
                    },
                    "event": {
                        "far": 7.140650794138414e-10,
                        "time": "2024-04-20T04:22:45.509Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 135.80820296573197,
                        "area_90": 924.0623033774949,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.02215384615384615,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": true,
                        "skymap_hash": "dc7223251738b2ee1a9690753ddf613b",
                        "classification": {
                            "BBH": 0.9992518997566358,
                            "BNS": 1.1129356938908993e-18,
                            "NSBH": 9.033083092634072e-17,
                            "Terrestrial": 0.0007481002433641359
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-20T04:30:50Z",
                    "superevent_id": "S240420aw",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-20T04:30:50.888916Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-20T04:30:50.888932Z",
                "modified": "2024-04-20T04:30:50.895026Z"
            }
        },
        {
            "id": 3848,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6736,
                "topic": "igwn.gwalert",
                "uuid": "b334f545-95a8-4f15-9a8c-1fb8a55d508e",
                "title": "S240420at - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240420at/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240420at/view/"
                    },
                    "event": {
                        "far": 8.104374143990187e-06,
                        "time": "2024-04-20T04:22:18.293Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 617.3004760528133,
                        "area_90": 7187.710777588433,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.09224963917432111,
                            "HasMassGap": 0.018157865123382366,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "d82ef18da7a515e294ac53d9ee6f53ce",
                        "classification": {
                            "BBH": 0.20147242031248427,
                            "BNS": 2.0958257478235606e-16,
                            "NSBH": 1.6481991690032065e-14,
                            "Terrestrial": 0.798527579687499
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-20T04:32:23Z",
                    "superevent_id": "S240420at",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-20T04:32:24.031203Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-20T04:32:24.031218Z",
                "modified": "2024-04-20T04:32:24.037289Z"
            }
        },
        {
            "id": 3849,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6737,
                "topic": "igwn.gwalert",
                "uuid": "1fba499a-a952-4d70-b0a9-049393e7cb34",
                "title": "S240420av - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240420av/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240420av/view/"
                    },
                    "event": {
                        "far": 5.156874949284816e-06,
                        "time": "2024-04-20T04:22:40.612Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 363.0469574066554,
                        "area_90": 1725.5877345541596,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.17887343563452932,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "48f7ce6b98329259faf4e9b236f425ae",
                        "classification": {
                            "BBH": 0.3107781927220101,
                            "BNS": 9.631984664205703e-16,
                            "NSBH": 7.52393015859112e-14,
                            "Terrestrial": 0.6892218072779137
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-20T04:34:22Z",
                    "superevent_id": "S240420av",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-20T04:34:23.200616Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-20T04:34:23.200631Z",
                "modified": "2024-04-20T04:34:23.206436Z"
            }
        },
        {
            "id": 10973,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5788036,
                "topic": "igwn.gwalert",
                "uuid": "32dc734f-0de0-4524-a744-828fc5e1e0a3",
                "title": "S251014cd - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S251014cd/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S251014cd/view/"
                    },
                    "event": {
                        "far": 6.315951878163125e-06,
                        "time": "2025-10-14T10:22:43.102Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1238.7974203316826,
                        "area_90": 4949.314625810252,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.02277630581978408,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "4d7b16fef515fc5316fc1dc7bc96b8ab",
                        "classification": {
                            "BBH": 0.19279234015618787,
                            "BNS": 1.224067870533476e-13,
                            "NSBH": 8.368482046790305e-12,
                            "Terrestrial": 0.8072076598353213
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-10-14T10:27:38Z",
                    "superevent_id": "S251014cd",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-10-14T10:27:39.519967Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-10-14T10:27:39.519981Z",
                "modified": "2025-10-14T10:27:39.529401Z"
            }
        },
        {
            "id": 3852,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6740,
                "topic": "igwn.gwalert",
                "uuid": "d55289da-010e-48ce-b6c2-69797771d4bd",
                "title": "S240420ax - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240420ax/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240420ax/view/"
                    },
                    "event": {
                        "far": 5.66457e-08,
                        "time": "2024-04-20T04:21:16.253Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 1646.6941319043099,
                        "area_90": 6423.114266801062,
                        "duration": 0.032744,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "ec3b6ba18f513f55ca3b6cd7361096dc",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 219.211823
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-20T04:41:24Z",
                    "superevent_id": "S240420ax",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-20T04:41:25.101058Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-20T04:41:25.101081Z",
                "modified": "2024-04-20T04:41:25.109382Z"
            }
        },
        {
            "id": 9488,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 2763741,
                "topic": "igwn.gwalert",
                "uuid": "51fa1e33-6065-494e-8ea9-f26dd2af854e",
                "title": "S250802dd - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250802dd/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250802dd/view/"
                    },
                    "event": {
                        "far": 4.154236372102811e-06,
                        "time": "2025-08-02T17:56:19.760Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 196.49962468506448,
                        "area_90": 939.7990592252041,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "2de4dc739dfb49f4534a3a14f267867e",
                        "classification": {
                            "BBH": 0.0017197838818048435,
                            "BNS": 0.0,
                            "NSBH": 0.004397965128189115,
                            "Terrestrial": 0.993882250990006
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-02T18:01:23Z",
                    "superevent_id": "S250802dd",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-02T18:01:24.276736Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-02T18:01:24.276758Z",
                "modified": "2025-08-02T18:01:24.286733Z"
            }
        },
        {
            "id": 3855,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6746,
                "topic": "igwn.gwalert",
                "uuid": "50b036c4-92ad-443a-8bd3-3a298e0c61e0",
                "title": "S240420bp - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240420bp/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240420bp/view/"
                    },
                    "event": {
                        "far": 2.17277e-05,
                        "time": "2024-04-20T07:43:00.234Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 641.2203449413315,
                        "area_90": 2427.2372219506947,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "43ec60b0f5841f0eb65849b2ebe1d5d3",
                        "classification": {
                            "BBH": 0.0007747280656940081,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.999225271934306
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-20T07:50:59Z",
                    "superevent_id": "S240420bp",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-20T07:51:00.421008Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-20T07:51:00.421024Z",
                "modified": "2024-04-20T07:51:00.427480Z"
            }
        },
        {
            "id": 7723,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 174516,
                "topic": "igwn.gwalert",
                "uuid": "5c2b4a45-4ac4-4293-a776-567c9a93e82e",
                "title": "S250203dg - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250203dg/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250203dg/view/"
                    },
                    "event": {
                        "far": 1.60186e-05,
                        "time": "2025-02-03T21:50:44.477Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 2236.71756448776,
                        "area_90": 6827.653803792843,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.04264138160689884,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "165c18df8c1576a88dff387e88b96cf3",
                        "classification": {
                            "BBH": 0.0010144998343133427,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9989855001656867
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-03T21:57:18Z",
                    "superevent_id": "S250203dg",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-03T21:57:18.702372Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-03T21:57:18.702403Z",
                "modified": "2025-02-03T21:57:18.707739Z"
            }
        },
        {
            "id": 10368,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5777780,
                "topic": "igwn.gwalert",
                "uuid": "97cfcdca-3209-429f-bbc6-c31a5c626164",
                "title": "S250911bo - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250911bo/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250911bo/view/"
                    },
                    "event": {
                        "far": 1.631322e-05,
                        "time": "2025-09-11T10:00:32.583Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 140.73905313134756,
                        "area_90": 985.1209160666072,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005384615384615384,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "8c33a583808496707d9a438e81f152d3",
                        "classification": {
                            "BBH": 0.0434986713424892,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9565013286575108
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-09-11T10:05:52Z",
                    "superevent_id": "S250911bo",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-09-11T10:05:53.505638Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-09-11T10:05:53.505666Z",
                "modified": "2025-09-11T10:05:53.517127Z"
            }
        },
        {
            "id": 3858,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6755,
                "topic": "igwn.gwalert",
                "uuid": "4a5de589-957b-44e7-b584-a2a9f5e8bfc4",
                "title": "S240420dc - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240420dc/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240420dc/view/"
                    },
                    "event": {
                        "far": 2.360739563238057e-07,
                        "time": "2024-04-20T17:56:25.521Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 8060.576168608048,
                        "area_90": 24218.657426213438,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1"
                        ],
                        "significant": false,
                        "skymap_hash": "01625add01797fe99bf18094d62d326b",
                        "classification": {
                            "BBH": 0.8869423459952187,
                            "BNS": 5.917433784050038e-23,
                            "NSBH": 4.13753132274836e-21,
                            "Terrestrial": 0.1130576540047813
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-20T18:01:27Z",
                    "superevent_id": "S240420dc",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-20T18:01:28.734236Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-20T18:01:28.734254Z",
                "modified": "2024-04-20T18:01:28.739874Z"
            }
        },
        {
            "id": 7725,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 174522,
                "topic": "igwn.gwalert",
                "uuid": "3f183d98-fb12-4ed8-83ec-0be14eac6c42",
                "title": "S250203dr - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250203dr/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250203dr/view/"
                    },
                    "event": {
                        "far": 1.80981247680633e-05,
                        "time": "2025-02-03T22:15:30.320Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 636.814053303973,
                        "area_90": 4325.719447418355,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.07442888632314384,
                            "HasMassGap": 0.3414853684721251,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "6213110b3b70158eb04e2424eb0ee711",
                        "classification": {
                            "BBH": 0.06039250467034356,
                            "BNS": 2.65418175761046e-19,
                            "NSBH": 8.150361995876527e-05,
                            "Terrestrial": 0.9395259917096976
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-03T22:20:46Z",
                    "superevent_id": "S250203dr",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-03T22:20:47.557657Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-03T22:20:47.557709Z",
                "modified": "2025-02-03T22:20:47.569465Z"
            }
        },
        {
            "id": 3860,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6758,
                "topic": "igwn.gwalert",
                "uuid": "439e63d9-a3c4-44be-a315-57020bd3b6dd",
                "title": "S240420dj - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240420dj/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240420dj/view/"
                    },
                    "event": {
                        "far": 1.6566e-06,
                        "time": "2024-04-20T19:24:20.008Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 1323.5660784980103,
                        "area_90": 4158.700012021332,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "a219dd2afd2c0f8dde37a53dd2f17952",
                        "classification": {
                            "BBH": 0.01673984264837003,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.98326015735163
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-20T19:30:43Z",
                    "superevent_id": "S240420dj",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-20T19:30:43.927671Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-20T19:30:43.927687Z",
                "modified": "2024-04-20T19:30:43.933660Z"
            }
        },
        {
            "id": 9490,
            "sequence_number": 2,
            "sequence_type": "INITIAL",
            "message": {
                "id": 2779961,
                "topic": "igwn.gwalert",
                "uuid": "7b013078-6403-444b-9ebb-0e794a9a54fd",
                "title": "S250802dn - INITIAL",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250802dn/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250802dn/view/"
                    },
                    "event": {
                        "far": 5.494101e-08,
                        "time": "2025-08-02T20:25:12.022Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1421.5536115764144,
                        "area_90": 4470.0779543946755,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.010406926406926406,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": true,
                        "skymap_hash": "428eb6570a919ac3c0a1305b5d5cef93",
                        "classification": {
                            "BBH": 0.926962637,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.073037363
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "INITIAL",
                    "sequence_num": 2,
                    "time_created": "2025-08-02T20:59:40Z",
                    "superevent_id": "S250802dn",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-02T22:51:15.406011Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-02T22:51:15.406032Z",
                "modified": "2025-08-02T22:51:15.420163Z"
            }
        },
        {
            "id": 3862,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6761,
                "topic": "igwn.gwalert",
                "uuid": "1cdd6563-31e4-468e-8389-cb5bf7c7c639",
                "title": "S240420do - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240420do/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240420do/view/"
                    },
                    "event": {
                        "far": 1.232777166342884e-05,
                        "time": "2024-04-20T20:17:31.660Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 331.9930925338423,
                        "area_90": 1116.8900183647606,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.45594227994228,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "bbc9d6707a7f0ed5d7bf70be3c7774e3",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.004228827524804324,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9957711724751956
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-20T20:22:38Z",
                    "superevent_id": "S240420do",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-20T20:22:39.178597Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-20T20:22:39.178614Z",
                "modified": "2024-04-20T20:22:39.185171Z"
            }
        },
        {
            "id": 7727,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 174525,
                "topic": "igwn.gwalert",
                "uuid": "a38dcdfa-d81e-4249-9535-fc679be39c47",
                "title": "S250203dw - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250203dw/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250203dw/view/"
                    },
                    "event": {
                        "far": 1.770262e-05,
                        "time": "2025-02-03T22:25:29.540Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 738.9980546084325,
                        "area_90": 4781.455896768019,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.1085330013639611,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "8a4a491e013fc597ad933ceef93e629b",
                        "classification": {
                            "BBH": 0.039039449,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.960960551
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-03T22:30:40Z",
                    "superevent_id": "S250203dw",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-03T22:30:41.435877Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-03T22:30:41.435914Z",
                "modified": "2025-02-03T22:30:41.445007Z"
            }
        },
        {
            "id": 3864,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6763,
                "topic": "igwn.gwalert",
                "uuid": "f9748d9c-61c8-488e-8b98-16a4af2985a8",
                "title": "S240420dt - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240420dt/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240420dt/view/"
                    },
                    "event": {
                        "far": 1.323978e-05,
                        "time": "2024-04-20T21:01:20.622Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 673.9527971045673,
                        "area_90": 2858.634155589235,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0041299748849658105,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "49a06530ec462a2bcb8c6d8d674348e2",
                        "classification": {
                            "BBH": 0.059635327,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.940364673
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-20T21:06:22Z",
                    "superevent_id": "S240420dt",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-20T21:06:23.540051Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-20T21:06:23.540070Z",
                "modified": "2024-04-20T21:06:23.545866Z"
            }
        },
        {
            "id": 10776,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5784826,
                "topic": "igwn.gwalert",
                "uuid": "d8dcae72-5630-4c64-90e9-da4328f35254",
                "title": "S251005r - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S251005r/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S251005r/view/"
                    },
                    "event": {
                        "far": 1.72842e-05,
                        "time": "2025-10-05T04:34:54.322Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 234.16292701391558,
                        "area_90": 2191.3957076463566,
                        "duration": 0.083668,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "ad65a70ec378b35e34a6d0da3d4b51f8",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 1209.473511
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-10-05T04:41:36Z",
                    "superevent_id": "S251005r",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-10-05T04:41:37.764404Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-10-05T04:41:37.764421Z",
                "modified": "2025-10-05T04:41:37.772649Z"
            }
        },
        {
            "id": 3866,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6767,
                "topic": "igwn.gwalert",
                "uuid": "98502e62-2036-4274-9780-7d0c7c725078",
                "title": "S240421c - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240421c/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240421c/view/"
                    },
                    "event": {
                        "far": 4.31688e-06,
                        "time": "2024-04-21T00:38:52.615Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 376.842846699814,
                        "area_90": 1418.4062604068722,
                        "duration": 0.007337,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "a5c35ec4752c10698693813c8c449e3b",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 895.447571
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-21T00:45:15Z",
                    "superevent_id": "S240421c",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-21T00:45:15.816617Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-21T00:45:15.816633Z",
                "modified": "2024-04-21T00:45:15.822057Z"
            }
        },
        {
            "id": 7729,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 174533,
                "topic": "igwn.gwalert",
                "uuid": "09314488-c174-4c68-b82d-c7d2bd365886",
                "title": "S250203eh - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250203eh/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250203eh/view/"
                    },
                    "event": {
                        "far": 9.36673e-06,
                        "time": "2025-02-03T22:58:48.266Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 1586.2649894491055,
                        "area_90": 5575.427685137783,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "ef9f375447e019f029b79bd9be5861af",
                        "classification": {
                            "BBH": 0.0036211172656053225,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9963788827343947
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-03T23:04:14Z",
                    "superevent_id": "S250203eh",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-03T23:04:15.710336Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-03T23:04:15.710371Z",
                "modified": "2025-02-03T23:04:15.720148Z"
            }
        },
        {
            "id": 3868,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6769,
                "topic": "igwn.gwalert",
                "uuid": "ea941c69-43cf-4cf0-bc7b-f5ee711344d3",
                "title": "S240421k - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240421k/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240421k/view/"
                    },
                    "event": {
                        "far": 6.605429e-06,
                        "time": "2024-04-21T01:16:42.440Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 501.0583061910667,
                        "area_90": 1963.9471297941307,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.9273765790877969,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "4708aec468514f013936c755bcdffcd9",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.001436195,
                            "NSBH": 0.000598415,
                            "Terrestrial": 0.99796539
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-21T01:21:53Z",
                    "superevent_id": "S240421k",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-21T01:21:54.383462Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-21T01:21:54.383479Z",
                "modified": "2024-04-21T01:21:54.389080Z"
            }
        },
        {
            "id": 3870,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6771,
                "topic": "igwn.gwalert",
                "uuid": "4548d48d-18bc-453c-bfaa-2207c8c39bb8",
                "title": "S240421p - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240421p/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240421p/view/"
                    },
                    "event": {
                        "far": 1.64489e-05,
                        "time": "2024-04-21T01:40:08.614Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 631.1488211987976,
                        "area_90": 2400.3798253039377,
                        "duration": 0.028431,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "b34cbd1add0f8032add12a44744f664c",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 1151.571411
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-21T01:46:19Z",
                    "superevent_id": "S240421p",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-21T01:46:20.961353Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-21T01:46:20.961371Z",
                "modified": "2024-04-21T01:46:20.966970Z"
            }
        },
        {
            "id": 7731,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 174578,
                "topic": "igwn.gwalert",
                "uuid": "09f45ec9-2ca2-4a09-9354-283dc197318e",
                "title": "S250204m - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250204m/files/cwb.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250204m/view/"
                    },
                    "event": {
                        "far": 1.9128e-05,
                        "time": "2025-02-04T01:47:13.000Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 678.149265330623,
                        "area_90": 2543.8990386350474,
                        "duration": 0.008565,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "19b0f3b62c6cc59cf10e40a44b10d538",
                        "classification": {},
                        "skymap_version": 1,
                        "central_frequency": 165.332092
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-04T01:53:04Z",
                    "superevent_id": "S250204m",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-04T01:53:04.810532Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-04T01:53:04.810567Z",
                "modified": "2025-02-04T01:53:04.814581Z"
            }
        },
        {
            "id": 3872,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6773,
                "topic": "igwn.gwalert",
                "uuid": "00e308ce-836a-451b-9c14-205076db224d",
                "title": "S240421r - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240421r/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240421r/view/"
                    },
                    "event": {
                        "far": 1.92260529986675e-05,
                        "time": "2024-04-21T01:47:35.199Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 322.97068584782227,
                        "area_90": 1276.1459875435792,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.00705845892231864,
                            "HasMassGap": 0.38914165383000027,
                            "HasRemnant": 7.986512235391423e-05
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "a7c4b90870326785b8d53566ba079060",
                        "classification": {
                            "BBH": 0.001157207377203921,
                            "BNS": 0.0,
                            "NSBH": 0.0015832687770975867,
                            "Terrestrial": 0.9972595238456985
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-21T01:52:44Z",
                    "superevent_id": "S240421r",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-21T01:52:45.791773Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-21T01:52:45.791792Z",
                "modified": "2024-04-21T01:52:45.797515Z"
            }
        },
        {
            "id": 11071,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5794706,
                "topic": "igwn.gwalert",
                "uuid": "67e51ff5-3566-4ba4-91a4-b24de256543e",
                "title": "S251111bi - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S251111bi/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S251111bi/view/"
                    },
                    "event": {
                        "far": 8.01205909217991e-06,
                        "time": "2025-11-11T12:18:33.946Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 840.9722325015895,
                        "area_90": 3164.137042446099,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005275362318840579,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "4c597dfb9ee6ec9ceab89ebea94e76d2",
                        "classification": {
                            "BBH": 0.15248238970421518,
                            "BNS": 2.2360255138613467e-14,
                            "NSBH": 1.5702716743722017e-12,
                            "Terrestrial": 0.8475176102941921
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-11-11T12:23:36Z",
                    "superevent_id": "S251111bi",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-11-11T12:23:37.454333Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-11-11T12:23:37.454356Z",
                "modified": "2025-11-11T12:23:37.460088Z"
            }
        },
        {
            "id": 3874,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6775,
                "topic": "igwn.gwalert",
                "uuid": "ac89515a-b171-4a41-89e4-cd29cfd2f3ee",
                "title": "S240421ae - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240421ae/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240421ae/view/"
                    },
                    "event": {
                        "far": 1.89124e-06,
                        "time": "2024-04-21T03:30:10.290Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1707.9625680047247,
                        "area_90": 6140.272308364898,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.10649268862130384,
                            "HasMassGap": 0.04588051204168146,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "cd71e64b751ff3196f4bc5416f1847c8",
                        "classification": {
                            "BBH": 0.418942433,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.581057567
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-21T03:35:21Z",
                    "superevent_id": "S240421ae",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-21T03:35:21.724704Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-21T03:35:21.724721Z",
                "modified": "2024-04-21T03:35:21.731081Z"
            }
        },
        {
            "id": 7733,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 174601,
                "topic": "igwn.gwalert",
                "uuid": "ba53a098-14f6-47e1-bdd2-9bb8c6aabe88",
                "title": "S250204aa - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250204aa/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250204aa/view/"
                    },
                    "event": {
                        "far": 1.329722e-05,
                        "time": "2025-02-04T03:11:31.148Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 379.7803744580531,
                        "area_90": 1320.8383741510738,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.5356193345030942,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "9a83d698bd961b11970fba351384d3bb",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.001125344,
                            "NSBH": 0.0,
                            "Terrestrial": 0.998874656
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-04T03:16:37Z",
                    "superevent_id": "S250204aa",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-04T03:16:38.322738Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-04T03:16:38.322762Z",
                "modified": "2025-02-04T03:16:38.331309Z"
            }
        },
        {
            "id": 3876,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6779,
                "topic": "igwn.gwalert",
                "uuid": "96bdbace-30c8-4c20-9832-9cc3a3bd81ad",
                "title": "S240421ar - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240421ar/files/cwb.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240421ar/view/"
                    },
                    "event": {
                        "far": 3.59706e-08,
                        "time": "2024-04-21T05:29:35.734Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 1600.5329814176955,
                        "area_90": 5983.32439671041,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": true,
                        "skymap_hash": "7ba22c015d499bcab94a3ddb7ecd9e36",
                        "classification": {
                            "BBH": 0.41391150101247964,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.5860884989875204
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-21T05:30:59Z",
                    "superevent_id": "S240421ar",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-21T05:31:00.380756Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-21T05:31:00.380774Z",
                "modified": "2024-04-21T05:31:00.395265Z"
            }
        },
        {
            "id": 3880,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6789,
                "topic": "igwn.gwalert",
                "uuid": "f7c198ec-4717-461c-9e2a-e3459afc3287",
                "title": "S240421bi - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240421bi/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240421bi/view/"
                    },
                    "event": {
                        "far": 1.378927731504015e-05,
                        "time": "2024-04-21T10:55:27.961Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 458.0969627268201,
                        "area_90": 1844.7674321741451,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "71598a9d8293a06882c85eaa165699db",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.002976906364464238,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9970230936355358
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-21T11:00:36Z",
                    "superevent_id": "S240421bi",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-21T11:00:37.788384Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-21T11:00:37.788400Z",
                "modified": "2024-04-21T11:00:37.793998Z"
            }
        },
        {
            "id": 7735,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 174629,
                "topic": "igwn.gwalert",
                "uuid": "6fa232f3-88cd-4f28-866a-f7f8c655738b",
                "title": "S250204ar - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250204ar/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250204ar/view/"
                    },
                    "event": {
                        "far": 4.65106417417803e-07,
                        "time": "2025-02-04T05:22:40.767Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 692.6270807105157,
                        "area_90": 3074.332622408505,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.04264138160689884,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "a15419a6a5ed91a33245da20c72c8642",
                        "classification": {
                            "BBH": 0.7786551389157405,
                            "BNS": 2.533040594668365e-16,
                            "NSBH": 2.4601425601284763e-08,
                            "Terrestrial": 0.22134483648283376
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-04T05:27:40Z",
                    "superevent_id": "S250204ar",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-04T05:27:41.031428Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-04T05:27:41.031449Z",
                "modified": "2025-02-04T05:27:41.037253Z"
            }
        },
        {
            "id": 3882,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6791,
                "topic": "igwn.gwalert",
                "uuid": "3f120b92-ffc1-4d6e-b469-3dcf8148d5d2",
                "title": "S240421bv - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240421bv/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240421bv/view/"
                    },
                    "event": {
                        "far": 1.10166e-05,
                        "time": "2024-04-21T12:54:10.778Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 1325.2446657884327,
                        "area_90": 5125.566291304596,
                        "duration": 0.010939,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "56a5c9d288270df7252abede65c100cb",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 410.594879
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-21T13:00:34Z",
                    "superevent_id": "S240421bv",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-21T13:00:35.783096Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-21T13:00:35.783114Z",
                "modified": "2024-04-21T13:00:35.788945Z"
            }
        },
        {
            "id": 9495,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 2807798,
                "topic": "igwn.gwalert",
                "uuid": "ca67f56a-9be8-4b8e-9109-7ac6eb6b862b",
                "title": "S250802dq - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250802dq/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250802dq/view/"
                    },
                    "event": {
                        "far": 1.20297055996737e-05,
                        "time": "2025-08-02T20:50:58.693Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 428.3020383218236,
                        "area_90": 1427.428667092892,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.9046535300299713,
                            "HasMassGap": 0.01860546683822794,
                            "HasRemnant": 0.020243167474237656
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "f1d7e99c4064afe44dbf3b192995705f",
                        "classification": {
                            "BBH": 0.0008678542905957527,
                            "BNS": 0.0,
                            "NSBH": 0.0024445264701291065,
                            "Terrestrial": 0.9966876192392752
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-02T20:51:29Z",
                    "superevent_id": "S250802dq",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-02T22:57:32.733717Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-02T22:57:32.733738Z",
                "modified": "2025-08-02T22:57:32.737668Z"
            }
        },
        {
            "id": 3884,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6794,
                "topic": "igwn.gwalert",
                "uuid": "fb3432a8-ff4d-4a2f-be9b-04bd7a817a57",
                "title": "S240421co - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240421co/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240421co/view/"
                    },
                    "event": {
                        "far": 1.843745843514053e-05,
                        "time": "2024-04-21T14:44:01.381Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 953.01793413728,
                        "area_90": 4909.028530840116,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "13f443dfa44659f125c8503fb61d24de",
                        "classification": {
                            "BBH": 0.07228087569644585,
                            "BNS": 1.101158374562491e-13,
                            "NSBH": 7.637949443982803e-12,
                            "Terrestrial": 0.927719124295806
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-21T14:49:04Z",
                    "superevent_id": "S240421co",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-21T14:49:05.692972Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-21T14:49:05.692988Z",
                "modified": "2024-04-21T14:49:05.698874Z"
            }
        },
        {
            "id": 7737,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 174638,
                "topic": "igwn.gwalert",
                "uuid": "7db8c673-5059-46dc-9f8e-eee42fa9c8a9",
                "title": "S250204ax - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250204ax/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250204ax/view/"
                    },
                    "event": {
                        "far": 3.167545842243851e-10,
                        "time": "2025-02-04T05:52:59.004Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 177.66797352063892,
                        "area_90": 813.9050124435291,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": true,
                        "skymap_hash": "ff7b9af3a199fbb31fa9feabb4816806",
                        "classification": {
                            "BBH": 0.9997369500400664,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.00026304995993364777
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-04T06:00:10Z",
                    "superevent_id": "S250204ax",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-04T06:00:11.765511Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-04T06:00:11.765550Z",
                "modified": "2025-02-04T06:00:11.780283Z"
            }
        },
        {
            "id": 3886,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6797,
                "topic": "igwn.gwalert",
                "uuid": "6c8d1ae4-f90c-47d6-91b3-22d97db1f05e",
                "title": "S240421dd - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240421dd/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240421dd/view/"
                    },
                    "event": {
                        "far": 1.76664e-05,
                        "time": "2024-04-21T17:41:59.305Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 2369.3259604311243,
                        "area_90": 7515.874592866001,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.06344296890848616,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "693291824527aff2d5fc23e212967445",
                        "classification": {
                            "BBH": 0.0014613242105041557,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9985386757894958
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-21T17:49:14Z",
                    "superevent_id": "S240421dd",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-21T17:49:15.424437Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-21T17:49:15.424454Z",
                "modified": "2024-04-21T17:49:15.430243Z"
            }
        },
        {
            "id": 3888,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6804,
                "topic": "igwn.gwalert",
                "uuid": "eb1fb9d6-4f49-4126-b16e-7667e4e0e88d",
                "title": "S240421dm - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240421dm/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240421dm/view/"
                    },
                    "event": {
                        "far": 8.095184712496981e-06,
                        "time": "2024-04-21T21:12:44.510Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 650.6623984499572,
                        "area_90": 2544.7383322802584,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.41811995956712145,
                            "HasRemnant": 0.0034619009320837456
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "dfbe31b098838887b9dda006d3dd2cc7",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.0004896364944625466,
                            "NSBH": 0.0034030318000798318,
                            "Terrestrial": 0.9961073317054576
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-21T21:17:51Z",
                    "superevent_id": "S240421dm",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-21T21:17:51.887604Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-21T21:17:51.887633Z",
                "modified": "2024-04-21T21:17:51.893765Z"
            }
        },
        {
            "id": 9496,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 2808197,
                "topic": "igwn.gwalert",
                "uuid": "2c8e38a9-7772-43a4-8a58-6094e47191bf",
                "title": "S250802ef - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250802ef/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250802ef/view/"
                    },
                    "event": {
                        "far": 5.204049574731717e-07,
                        "time": "2025-08-02T22:39:37.433Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1296.7086818512532,
                        "area_90": 4456.649256071297,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.015682288725766987,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "bdff5ccc80692d3d664f162ed4cebfd3",
                        "classification": {
                            "BBH": 0.7660121282038379,
                            "BNS": 5.564615807121657e-15,
                            "NSBH": 4.258544467234504e-13,
                            "Terrestrial": 0.23398787179573066
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-02T22:40:04Z",
                    "superevent_id": "S250802ef",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-02T22:57:35.846355Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-02T22:57:35.846376Z",
                "modified": "2025-08-02T22:57:35.849150Z"
            }
        },
        {
            "id": 3890,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6806,
                "topic": "igwn.gwalert",
                "uuid": "4824f070-e7fe-4b63-9399-a34f4dca21ec",
                "title": "S240421dr - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240421dr/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240421dr/view/"
                    },
                    "event": {
                        "far": 1.13317e-05,
                        "time": "2024-04-21T21:46:03.728Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 395.3073068944597,
                        "area_90": 1385.6738082436368,
                        "duration": 0.020677,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "e423a6ca8f9bd53415723276c59c478a",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 1097.89502
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-21T21:54:23Z",
                    "superevent_id": "S240421dr",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-21T21:54:23.439077Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-21T21:54:23.439092Z",
                "modified": "2024-04-21T21:54:23.445175Z"
            }
        },
        {
            "id": 7740,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 174716,
                "topic": "igwn.gwalert",
                "uuid": "aab1715c-eb89-4f07-945c-17b5d444a166",
                "title": "S250204bx - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250204bx/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250204bx/view/"
                    },
                    "event": {
                        "far": 1.15165e-05,
                        "time": "2025-02-04T10:50:34.591Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 203.9483557863136,
                        "area_90": 903.9192558924267,
                        "duration": 0.093389,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "aab69599855524c5e2936f17357aa60a",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 1986.557007
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-04T10:56:35Z",
                    "superevent_id": "S250204bx",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-04T10:56:35.969840Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-04T10:56:35.969861Z",
                "modified": "2025-02-04T10:56:35.974772Z"
            }
        },
        {
            "id": 3892,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6810,
                "topic": "igwn.gwalert",
                "uuid": "9bfa96bb-08d5-460d-ac8d-c079644f67b3",
                "title": "S240421ef - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240421ef/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240421ef/view/"
                    },
                    "event": {
                        "far": 3.08675e-06,
                        "time": "2024-04-21T23:39:37.018Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 76.37572171421621,
                        "area_90": 459.9329175757195,
                        "duration": 0.020494,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "33bf7bce66f2babee5c816144e978bea",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 305.388123
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-21T23:46:26Z",
                    "superevent_id": "S240421ef",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-21T23:46:27.027752Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-21T23:46:27.027767Z",
                "modified": "2024-04-21T23:46:27.031937Z"
            }
        },
        {
            "id": 10778,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5784833,
                "topic": "igwn.gwalert",
                "uuid": "f9d8b8a1-ec02-4812-b4d4-14db019b516a",
                "title": "S251005t - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S251005t/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S251005t/view/"
                    },
                    "event": {
                        "far": 2.070509374701125e-06,
                        "time": "2025-10-05T04:48:16.781Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 594.6395476321118,
                        "area_90": 2997.117607049077,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.020090658134136394,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "ae44f3dcd55eb8b1c9cc442d6e2515ac",
                        "classification": {
                            "BBH": 0.4495769525914199,
                            "BNS": 5.847011920598851e-14,
                            "NSBH": 4.1831742996104414e-12,
                            "Terrestrial": 0.5504230474043386
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-10-05T04:53:14Z",
                    "superevent_id": "S251005t",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-10-05T04:53:15.402185Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-10-05T04:53:15.402211Z",
                "modified": "2025-10-05T04:53:15.414297Z"
            }
        },
        {
            "id": 3894,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6812,
                "topic": "igwn.gwalert",
                "uuid": "1954b7f0-5c71-47ed-90a7-18aa52cbaa0b",
                "title": "S240421ei - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240421ei/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240421ei/view/"
                    },
                    "event": {
                        "far": 3.800491130842421e-06,
                        "time": "2024-04-21T23:52:47.387Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 734.591762971074,
                        "area_90": 2452.4160313070297,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.7151341161562114,
                            "HasMassGap": 0.48780151578944697,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "5410ea484dbed643adecf8120236fdf5",
                        "classification": {
                            "BBH": 0.07454995771734253,
                            "BNS": 0.0,
                            "NSBH": 0.0831999596367873,
                            "Terrestrial": 0.8422500826458702
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-21T23:57:50Z",
                    "superevent_id": "S240421ei",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-21T23:57:51.744475Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-21T23:57:51.744491Z",
                "modified": "2024-04-21T23:57:51.747857Z"
            }
        },
        {
            "id": 7742,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 174723,
                "topic": "igwn.gwalert",
                "uuid": "f3109db4-628f-4cbf-9e8d-3d13230c556b",
                "title": "S250204cb - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250204cb/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250204cb/view/"
                    },
                    "event": {
                        "far": 2.068834510282613e-05,
                        "time": "2025-02-04T11:18:43.463Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 4170.450123054288,
                        "area_90": 15013.284725537356,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.45594227994228,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "93c01130f39a5afd686b0f79ac074e76",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.0012912308563109746,
                            "NSBH": 0.000806110070797419,
                            "Terrestrial": 0.9979026590728916
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-04T11:23:46Z",
                    "superevent_id": "S250204cb",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-04T11:23:47.492469Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-04T11:23:47.492495Z",
                "modified": "2025-02-04T11:23:47.515083Z"
            }
        },
        {
            "id": 3896,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 6822,
                "topic": "igwn.gwalert",
                "uuid": "df72ed9b-9485-4f8a-9bcc-c0e5ab882c82",
                "title": "S240422bn - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S240422bn/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S240422bn/view/"
                    },
                    "event": {
                        "far": 9.765543831637792e-06,
                        "time": "2024-04-22T09:17:53.262Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 610.3763034798212,
                        "area_90": 1952.1970187611744,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "e209e8dbd70fc2eb7242557802dac462",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.006620082101872815,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9933799178981272
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2024-04-22T09:22:57Z",
                    "superevent_id": "S240422bn",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2024-04-22T09:22:58.187407Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2024-04-22T09:22:58.187424Z",
                "modified": "2024-04-22T09:22:58.191782Z"
            }
        }
    ]
}