GET /api/v0/nonlocalizedeventsequence/?format=api&offset=1300&ordering=message
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 11123,
    "next": "https://hermes.lco.global/api/v0/nonlocalizedeventsequence/?format=api&limit=100&offset=1400&ordering=message",
    "previous": "https://hermes.lco.global/api/v0/nonlocalizedeventsequence/?format=api&limit=100&offset=1200&ordering=message",
    "results": [
        {
            "id": 9856,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771908,
                "topic": "igwn.gwalert",
                "uuid": "639b65bf-d9c6-4572-97ef-57c4a8364115",
                "title": "S250822cn - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "gracedb": "https://gracedb.ligo.org/superevents/S250822cn/view/"
                    },
                    "event": {
                        "far": 1.823198095547425e-05,
                        "time": "2025-08-22T21:55:22.128Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 7162.531968232099,
                        "area_90": 22570.2847070187,
                        "duration": 0.34375,
                        "pipeline": "MLy",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "1e028a1881788e91be25a51275eab550",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 368.0
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-22T21:56:13Z",
                    "superevent_id": "S250822cn",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-22T21:56:13.871866Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-22T21:56:13.871886Z",
                "modified": "2025-08-22T21:56:13.891619Z"
            }
        },
        {
            "id": 9855,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771884,
                "topic": "igwn.gwalert",
                "uuid": "6b3abeb9-acab-4923-b9dc-9c5ddd26199c",
                "title": "S250822bx - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250822bx/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250822bx/view/"
                    },
                    "event": {
                        "far": 5.86007e-06,
                        "time": "2025-08-22T19:24:56.235Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 819.9898913713101,
                        "area_90": 3107.0650745717408,
                        "duration": 0.017009,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "1394646eb2c163e381b4b573a140a847",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 673.759094
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-22T19:30:50Z",
                    "superevent_id": "S250822bx",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-22T19:30:51.311638Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-22T19:30:51.311658Z",
                "modified": "2025-08-22T19:30:51.327936Z"
            }
        },
        {
            "id": 9854,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771881,
                "topic": "igwn.gwalert",
                "uuid": "74873ba2-68be-4495-9e9f-324a1cb3cf09",
                "title": "S250822bx - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250822bx/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250822bx/view/"
                    },
                    "event": {
                        "far": 5.86007e-06,
                        "time": "2025-08-22T19:24:56.235Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 819.9898913713101,
                        "area_90": 3107.0650745717408,
                        "duration": 0.017009,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "1394646eb2c163e381b4b573a140a847",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 673.759094
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-22T19:26:16Z",
                    "superevent_id": "S250822bx",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-22T19:26:17.429996Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-22T19:26:17.430016Z",
                "modified": "2025-08-22T19:26:17.446406Z"
            }
        },
        {
            "id": 9853,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771830,
                "topic": "igwn.gwalert",
                "uuid": "fc98d10b-6982-4921-b9d1-79e5ecdec72a",
                "title": "S250822as - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250822as/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250822as/view/"
                    },
                    "event": {
                        "far": 6.853254399372511e-07,
                        "time": "2025-08-22T14:08:04.528Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 515.3262981596566,
                        "area_90": 1789.1642281789052,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005275362318840579,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "80fb9a2cc220a63569069fd0a4e2b55a",
                        "classification": {
                            "BBH": 0.7125126945720689,
                            "BNS": 4.406259139453285e-17,
                            "NSBH": 2.9822534566410362e-15,
                            "Terrestrial": 0.2874873054279281
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-22T14:13:03Z",
                    "superevent_id": "S250822as",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-22T14:13:04.601290Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-22T14:13:04.601311Z",
                "modified": "2025-08-22T14:13:04.618801Z"
            }
        },
        {
            "id": 9852,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771828,
                "topic": "igwn.gwalert",
                "uuid": "1b7079e1-e683-4aef-9840-f9bd9465284b",
                "title": "S250822as - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250822as/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250822as/view/"
                    },
                    "event": {
                        "far": 1.097765507679087e-06,
                        "time": "2025-08-22T14:08:04.528Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 519.9424132083179,
                        "area_90": 1781.6105853720046,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005275362318840579,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "f1ddee4493cf7a5f54518d3a15bd41be",
                        "classification": {
                            "BBH": 0.5973448914194741,
                            "BNS": 1.0780267288286256e-16,
                            "NSBH": 7.266046662200429e-15,
                            "Terrestrial": 0.40265510858051856
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-22T14:08:29Z",
                    "superevent_id": "S250822as",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-22T14:08:30.595600Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-22T14:08:30.595620Z",
                "modified": "2025-08-22T14:08:30.608777Z"
            }
        },
        {
            "id": 9851,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771703,
                "topic": "igwn.gwalert",
                "uuid": "446a162f-2749-4c73-b025-88011da42149",
                "title": "S250822d - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "gracedb": "https://gracedb.ligo.org/superevents/S250822d/view/"
                    },
                    "event": {
                        "far": 1.9303376874220504e-07,
                        "time": "2025-08-22T00:28:54.712Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 7002.226881996767,
                        "area_90": 22883.34123668247,
                        "duration": 0.1875,
                        "pipeline": "MLy",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "e3de50e760f616ce9936b546850721b1",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 88.0
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-22T00:34:11Z",
                    "superevent_id": "S250822d",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-22T00:34:13.031703Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-22T00:34:13.031730Z",
                "modified": "2025-08-22T00:34:13.042535Z"
            }
        },
        {
            "id": 9850,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771701,
                "topic": "igwn.gwalert",
                "uuid": "a37e4742-89df-4ad5-a00c-ce0da17f2ab0",
                "title": "S250822d - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "gracedb": "https://gracedb.ligo.org/superevents/S250822d/view/"
                    },
                    "event": {
                        "far": 1.9303376874220504e-07,
                        "time": "2025-08-22T00:28:54.712Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 7002.226881996767,
                        "area_90": 22883.34123668247,
                        "duration": 0.1875,
                        "pipeline": "MLy",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "e3de50e760f616ce9936b546850721b1",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 88.0
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-22T00:29:37Z",
                    "superevent_id": "S250822d",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-22T00:29:38.075273Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-22T00:29:38.075290Z",
                "modified": "2025-08-22T00:29:38.083793Z"
            }
        },
        {
            "id": 9849,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771558,
                "topic": "igwn.gwalert",
                "uuid": "c067ef74-611f-4092-bcd3-443b7c59e41b",
                "title": "S250821ce - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250821ce/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250821ce/view/"
                    },
                    "event": {
                        "far": 1.66664212503813e-05,
                        "time": "2025-08-21T11:47:34.945Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 674.1626205158699,
                        "area_90": 2307.218230685498,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005275362318840579,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "857c97e8a199ae75c83ed27375df8a77",
                        "classification": {
                            "BBH": 0.07935463286039875,
                            "BNS": 8.706155342787476e-17,
                            "NSBH": 5.754085528808491e-15,
                            "Terrestrial": 0.9206453671395954
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-21T11:52:33Z",
                    "superevent_id": "S250821ce",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-21T11:52:34.022230Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-21T11:52:34.022260Z",
                "modified": "2025-08-21T11:52:34.034001Z"
            }
        },
        {
            "id": 9848,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771557,
                "topic": "igwn.gwalert",
                "uuid": "9f1cf98b-3263-4b1e-b8bc-d3dc3f581394",
                "title": "S250821ce - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250821ce/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250821ce/view/"
                    },
                    "event": {
                        "far": 1.66664212503813e-05,
                        "time": "2025-08-21T11:47:34.947Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 590.6529028173588,
                        "area_90": 2122.5736287390414,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005275362318840579,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "aae06e4cb9a87239ca0ac9fd40f5fb21",
                        "classification": {
                            "BBH": 0.07935463286039875,
                            "BNS": 8.706155342787476e-17,
                            "NSBH": 5.754085528808491e-15,
                            "Terrestrial": 0.9206453671395954
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-21T11:47:58Z",
                    "superevent_id": "S250821ce",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-21T11:47:59.957154Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-21T11:47:59.957170Z",
                "modified": "2025-08-21T11:47:59.970910Z"
            }
        },
        {
            "id": 9847,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771542,
                "topic": "igwn.gwalert",
                "uuid": "65507388-45c2-402d-87e0-f71d6181ccad",
                "title": "S250821br - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250821br/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250821br/view/"
                    },
                    "event": {
                        "far": 9.315818197555782e-06,
                        "time": "2025-08-21T11:03:55.074Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 667.2384479428778,
                        "area_90": 2209.0208741957913,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005275362318840579,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "bf6bfeb640882aec034840d5a02554a2",
                        "classification": {
                            "BBH": 0.1512391988105087,
                            "BNS": 7.007663031037796e-14,
                            "NSBH": 4.934348087684673e-12,
                            "Terrestrial": 0.8487608011844868
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-21T11:08:53Z",
                    "superevent_id": "S250821br",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-21T11:08:54.431738Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-21T11:08:54.431757Z",
                "modified": "2025-08-21T11:08:54.442322Z"
            }
        },
        {
            "id": 9846,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771531,
                "topic": "igwn.gwalert",
                "uuid": "c88b2969-7d08-4943-b93b-6a4a4c02b0a8",
                "title": "S250821br - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250821br/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250821br/view/"
                    },
                    "event": {
                        "far": 1.496921454349228e-05,
                        "time": "2025-08-21T11:03:55.081Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 689.0600827183681,
                        "area_90": 2365.1294922050683,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005275362318840579,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "60621b49b951ef7b0fa8b22c1206eaba",
                        "classification": {
                            "BBH": 0.07445951447868292,
                            "BNS": 6.654776999207633e-14,
                            "NSBH": 4.674954549694816e-12,
                            "Terrestrial": 0.9255404855165756
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-21T11:04:18Z",
                    "superevent_id": "S250821br",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-21T11:04:19.333636Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-21T11:04:19.333657Z",
                "modified": "2025-08-21T11:04:19.348168Z"
            }
        },
        {
            "id": 9845,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771493,
                "topic": "igwn.gwalert",
                "uuid": "9284833b-fd38-46f2-9168-f3840129a9b6",
                "title": "S250821bm - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250821bm/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250821bm/view/"
                    },
                    "event": {
                        "far": 1.867897e-05,
                        "time": "2025-08-21T10:34:25.201Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 305.9749895322961,
                        "area_90": 1235.4402457508377,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "8ad3c682adfdc453a717f24598771cf0",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.0006508411648734241,
                            "NSBH": 0.0001674152656941194,
                            "Terrestrial": 0.9991817435694325
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-21T10:39:47Z",
                    "superevent_id": "S250821bm",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-21T10:39:48.470004Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-21T10:39:48.470037Z",
                "modified": "2025-08-21T10:39:48.479718Z"
            }
        },
        {
            "id": 9844,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771492,
                "topic": "igwn.gwalert",
                "uuid": "9c29985d-0e75-42a4-b8f3-b7682a7a5060",
                "title": "S250821bm - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250821bm/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250821bm/view/"
                    },
                    "event": {
                        "far": 1.867897e-05,
                        "time": "2025-08-21T10:34:25.201Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 345.2119674459181,
                        "area_90": 1485.5497520237652,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "08a269467b9158e883fdd1dbab085594",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.000694278,
                            "NSBH": 0.000123978,
                            "Terrestrial": 0.999181744
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-21T10:35:12Z",
                    "superevent_id": "S250821bm",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-21T10:35:13.800512Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-21T10:35:13.800529Z",
                "modified": "2025-08-21T10:35:13.814231Z"
            }
        },
        {
            "id": 9843,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771451,
                "topic": "igwn.gwalert",
                "uuid": "31b4751a-579d-4816-84d6-c1252031a366",
                "title": "S250821ao - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250821ao/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250821ao/view/"
                    },
                    "event": {
                        "far": 1.128913338175709e-05,
                        "time": "2025-08-21T07:30:18.552Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 342.22198383485335,
                        "area_90": 2600.9710065094064,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "3cf628c2f62df230e0badf0cfa8a2246",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.0031576896399330145,
                            "NSBH": 0.0,
                            "Terrestrial": 0.996842310360067
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-21T07:36:12Z",
                    "superevent_id": "S250821ao",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-21T07:36:13.844279Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-21T07:36:13.844297Z",
                "modified": "2025-08-21T07:36:13.856223Z"
            }
        },
        {
            "id": 9842,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771450,
                "topic": "igwn.gwalert",
                "uuid": "fadafde4-28f4-4b04-84b7-06a9143c9e1e",
                "title": "S250821ao - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250821ao/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250821ao/view/"
                    },
                    "event": {
                        "far": 1.128913338175709e-05,
                        "time": "2025-08-21T07:30:18.538Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 382.92772562759495,
                        "area_90": 1549.9655392937227,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "b95dfe6a786a1a1e348b5f8bf98a96fa",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.0031576896399329907,
                            "NSBH": 0.0,
                            "Terrestrial": 0.996842310360067
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-21T07:31:18Z",
                    "superevent_id": "S250821ao",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-21T07:31:18.980736Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-21T07:31:18.980756Z",
                "modified": "2025-08-21T07:31:18.998185Z"
            }
        },
        {
            "id": 9841,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771439,
                "topic": "igwn.gwalert",
                "uuid": "4b83009b-e0e2-4fbb-863a-8942438b3b1b",
                "title": "S250821ah - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250821ah/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250821ah/view/"
                    },
                    "event": {
                        "far": 8.190855e-06,
                        "time": "2025-08-21T06:08:37.270Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 518.6834727405012,
                        "area_90": 2045.3586133796143,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.21549968691439284,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "09286a39ecafe682dddbb29081b5f7aa",
                        "classification": {
                            "BBH": 0.09751441729397063,
                            "BNS": 0.0,
                            "NSBH": 1.9506784815757273e-05,
                            "Terrestrial": 0.9024660759212136
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-21T06:14:55Z",
                    "superevent_id": "S250821ah",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-21T06:14:55.872957Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-21T06:14:55.872975Z",
                "modified": "2025-08-21T06:14:55.884238Z"
            }
        },
        {
            "id": 9840,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771437,
                "topic": "igwn.gwalert",
                "uuid": "cf3db137-db18-400e-974b-60a1b254449d",
                "title": "S250821ah - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250821ah/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250821ah/view/"
                    },
                    "event": {
                        "far": 8.190855e-06,
                        "time": "2025-08-21T06:08:37.270Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 443.72405905257887,
                        "area_90": 1730.2038496028206,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.45039509752973345,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "e6c2ba626f2c7633855be58f6942e35f",
                        "classification": {
                            "BBH": 0.097533924,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.902466076
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-21T06:10:00Z",
                    "superevent_id": "S250821ah",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-21T06:10:01.958935Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-21T06:10:01.958954Z",
                "modified": "2025-08-21T06:10:01.981772Z"
            }
        },
        {
            "id": 9839,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771396,
                "topic": "igwn.gwalert",
                "uuid": "334c234a-46fa-4290-9291-c931d2434910",
                "title": "S250821h - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250821h/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250821h/view/"
                    },
                    "event": {
                        "far": 8.52172e-07,
                        "time": "2025-08-21T01:34:46.243Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 488.4689015128991,
                        "area_90": 2249.3069691659275,
                        "duration": 0.013495,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "4914b14897bafee723a6c924f81c516f",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 798.973877
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-21T01:40:31Z",
                    "superevent_id": "S250821h",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-21T01:40:33.018566Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-21T01:40:33.018586Z",
                "modified": "2025-08-21T01:40:33.034408Z"
            }
        },
        {
            "id": 9838,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771395,
                "topic": "igwn.gwalert",
                "uuid": "f63d2f3b-c193-4a9b-8a88-57d77fa5d207",
                "title": "S250821h - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250821h/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250821h/view/"
                    },
                    "event": {
                        "far": 8.52172e-07,
                        "time": "2025-08-21T01:34:46.243Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 488.4689015128991,
                        "area_90": 2249.3069691659275,
                        "duration": 0.013495,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "4914b14897bafee723a6c924f81c516f",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 798.973877
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-21T01:35:55Z",
                    "superevent_id": "S250821h",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-21T01:35:56.214127Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-21T01:35:56.214145Z",
                "modified": "2025-08-21T01:35:56.244389Z"
            }
        },
        {
            "id": 9837,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771390,
                "topic": "igwn.gwalert",
                "uuid": "f8c69ad7-3933-47d5-a11a-7620d088c42e",
                "title": "S250821f - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250821f/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250821f/view/"
                    },
                    "event": {
                        "far": 4.801682742257454e-06,
                        "time": "2025-08-21T01:05:03.625Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 259.4991039287277,
                        "area_90": 1086.6754471371582,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.023667233247372726,
                            "HasMassGap": 0.04749638577482379,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "16301fe72f5d824d6c3b6a9d5f5367d1",
                        "classification": {
                            "BBH": 0.04579658104568561,
                            "BNS": 0.0,
                            "NSBH": 0.03902739680666831,
                            "Terrestrial": 0.915176022147646
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-21T01:10:09Z",
                    "superevent_id": "S250821f",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-21T01:10:11.042259Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-21T01:10:11.042279Z",
                "modified": "2025-08-21T01:10:11.050328Z"
            }
        },
        {
            "id": 9836,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771389,
                "topic": "igwn.gwalert",
                "uuid": "aa8394da-c2a9-4b7b-9125-e846701cd0c3",
                "title": "S250821f - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250821f/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250821f/view/"
                    },
                    "event": {
                        "far": 4.801682742257454e-06,
                        "time": "2025-08-21T01:05:03.625Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 259.4991039287277,
                        "area_90": 1086.6754471371582,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.023667233247372726,
                            "HasMassGap": 0.04749638577482379,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "16301fe72f5d824d6c3b6a9d5f5367d1",
                        "classification": {
                            "BBH": 0.04579658104568561,
                            "BNS": 0.0,
                            "NSBH": 0.03902739680666831,
                            "Terrestrial": 0.915176022147646
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-21T01:05:34Z",
                    "superevent_id": "S250821f",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-21T01:05:35.281196Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-21T01:05:35.281218Z",
                "modified": "2025-08-21T01:05:35.302385Z"
            }
        },
        {
            "id": 9835,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771376,
                "topic": "igwn.gwalert",
                "uuid": "6288540a-e66c-4776-9f31-b1c5c2b18d05",
                "title": "S250820eq - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250820eq/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250820eq/view/"
                    },
                    "event": {
                        "far": 9.21259e-06,
                        "time": "2025-08-20T23:35:24.371Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 458.2543302852972,
                        "area_90": 1659.2835365824772,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "3749d36d3811c44c8ef27dd390634c01",
                        "classification": {
                            "BBH": 0.0030224922516408625,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9969775077483591
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-20T23:42:29Z",
                    "superevent_id": "S250820eq",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-20T23:42:30.558717Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-20T23:42:30.558737Z",
                "modified": "2025-08-20T23:42:30.568982Z"
            }
        },
        {
            "id": 9834,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771373,
                "topic": "igwn.gwalert",
                "uuid": "adf39422-ed7c-4315-b950-3411bd41ec48",
                "title": "S250820eq - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250820eq/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250820eq/view/"
                    },
                    "event": {
                        "far": 9.21259e-06,
                        "time": "2025-08-20T23:35:24.371Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 458.2543302852972,
                        "area_90": 1659.2835365824772,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "3749d36d3811c44c8ef27dd390634c01",
                        "classification": {
                            "BBH": 0.0030224922516408625,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9969775077483591
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-20T23:37:45Z",
                    "superevent_id": "S250820eq",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-20T23:37:45.574646Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-20T23:37:45.574666Z",
                "modified": "2025-08-20T23:37:45.596893Z"
            }
        },
        {
            "id": 9833,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771335,
                "topic": "igwn.gwalert",
                "uuid": "44ab8743-1ccc-4d18-9edc-f16ce7f7ee80",
                "title": "S250820dv - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250820dv/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250820dv/view/"
                    },
                    "event": {
                        "far": 2.20527e-05,
                        "time": "2025-08-20T19:09:49.308Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 1216.1364919109808,
                        "area_90": 4146.110607343164,
                        "duration": 0.014732,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "203971d3d3de0dc6eaf524356d932a17",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 220.97406
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-20T19:15:43Z",
                    "superevent_id": "S250820dv",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-20T19:15:44.443350Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-20T19:15:44.443383Z",
                "modified": "2025-08-20T19:15:44.448612Z"
            }
        },
        {
            "id": 9832,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771332,
                "topic": "igwn.gwalert",
                "uuid": "ce1e85f3-f2ba-44cc-8402-daecba8a5d9b",
                "title": "S250820dv - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250820dv/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250820dv/view/"
                    },
                    "event": {
                        "far": 2.20527e-05,
                        "time": "2025-08-20T19:09:49.308Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 1216.1364919109808,
                        "area_90": 4146.110607343164,
                        "duration": 0.014732,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "203971d3d3de0dc6eaf524356d932a17",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 220.97406
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-20T19:11:09Z",
                    "superevent_id": "S250820dv",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-20T19:11:10.639947Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-20T19:11:10.639967Z",
                "modified": "2025-08-20T19:11:10.648810Z"
            }
        },
        {
            "id": 9831,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771330,
                "topic": "igwn.gwalert",
                "uuid": "39c894b4-46a0-4831-9482-eb0f2907cd5f",
                "title": "S250820ds - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250820ds/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250820ds/view/"
                    },
                    "event": {
                        "far": 2.094032880848988e-05,
                        "time": "2025-08-20T19:01:12.720Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 441.46845738107385,
                        "area_90": 1819.3787994065074,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.3577749706290727,
                            "HasRemnant": 0.00015507319797515104
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "91f51bea76a6ba781991010b3cbc4ac5",
                        "classification": {
                            "BBH": 1.7723367975789112e-06,
                            "BNS": 1.2562351313834024e-05,
                            "NSBH": 0.0010596942994629474,
                            "Terrestrial": 0.9989259710124256
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-20T19:06:15Z",
                    "superevent_id": "S250820ds",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-20T19:06:15.812811Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-20T19:06:15.812838Z",
                "modified": "2025-08-20T19:06:15.818259Z"
            }
        },
        {
            "id": 9830,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771329,
                "topic": "igwn.gwalert",
                "uuid": "816dd162-5f5d-4b29-97c7-8fa6925147a7",
                "title": "S250820ds - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250820ds/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250820ds/view/"
                    },
                    "event": {
                        "far": 2.094032880848988e-05,
                        "time": "2025-08-20T19:01:12.721Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 651.7115155064712,
                        "area_90": 2079.559829421969,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.4051444549459254,
                            "HasRemnant": 0.05638970532234415
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "889888b3215bb11e97692dc55618c79b",
                        "classification": {
                            "BBH": 2.8774966859099037e-06,
                            "BNS": 9.894992484727666e-06,
                            "NSBH": 0.0010612564984037339,
                            "Terrestrial": 0.9989259710124256
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-20T19:01:38Z",
                    "superevent_id": "S250820ds",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-20T19:01:40.011233Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-20T19:01:40.011252Z",
                "modified": "2025-08-20T19:01:40.026333Z"
            }
        },
        {
            "id": 9829,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771327,
                "topic": "igwn.gwalert",
                "uuid": "7cd25f6c-7a06-473c-8f3d-e2aa5071c3bb",
                "title": "S250820do - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250820do/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250820do/view/"
                    },
                    "event": {
                        "far": 7.519303e-06,
                        "time": "2025-08-20T18:37:03.524Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 292.1266443863118,
                        "area_90": 1185.5022738607734,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.9118324009492448,
                            "HasMassGap": 0.3015025533778069,
                            "HasRemnant": 0.6892385374632457
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "1094f65f0348f4689abd2ea97b4a18ef",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.0,
                            "NSBH": 0.0015683760659257477,
                            "Terrestrial": 0.9984316239340743
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-20T18:42:23Z",
                    "superevent_id": "S250820do",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-20T18:42:24.132851Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-20T18:42:24.132871Z",
                "modified": "2025-08-20T18:42:24.138249Z"
            }
        },
        {
            "id": 9828,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771325,
                "topic": "igwn.gwalert",
                "uuid": "74dfaadd-7731-4409-86e3-4252895e2b3a",
                "title": "S250820do - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250820do/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250820do/view/"
                    },
                    "event": {
                        "far": 7.519303e-06,
                        "time": "2025-08-20T18:37:03.524Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 220.62931698488555,
                        "area_90": 1453.6565935057413,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.17781969019698995,
                            "HasRemnant": 0.9128408594522123
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "c0e9ffa74ca4bae21d50ed2c2323254f",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.000651275,
                            "NSBH": 0.000917101,
                            "Terrestrial": 0.998431624
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-20T18:37:48Z",
                    "superevent_id": "S250820do",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-20T18:37:49.237317Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-20T18:37:49.237338Z",
                "modified": "2025-08-20T18:37:49.245507Z"
            }
        },
        {
            "id": 9827,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771303,
                "topic": "igwn.gwalert",
                "uuid": "ce80a335-608f-49a5-87fb-672618dbb844",
                "title": "S250820cx - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250820cx/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250820cx/view/"
                    },
                    "event": {
                        "far": 1.308500680467458e-05,
                        "time": "2025-08-20T16:38:35.816Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 595.0591944547174,
                        "area_90": 2130.1272715459418,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005275362318840579,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "7ed2b5b74929d1a36f83cb4a0ae3fd46",
                        "classification": {
                            "BBH": 0.08622178890545834,
                            "BNS": 2.2346615868844776e-14,
                            "NSBH": 1.5726414505177897e-12,
                            "Terrestrial": 0.9137782110929467
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-20T16:43:32Z",
                    "superevent_id": "S250820cx",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-20T16:43:33.165372Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-20T16:43:33.165387Z",
                "modified": "2025-08-20T16:43:33.171430Z"
            }
        },
        {
            "id": 9826,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771302,
                "topic": "igwn.gwalert",
                "uuid": "29d10133-1778-473e-96d1-d14d983f0fd2",
                "title": "S250820cw - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250820cw/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250820cw/view/"
                    },
                    "event": {
                        "far": 1.257959155788723e-05,
                        "time": "2025-08-20T16:35:02.062Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 731.444411801532,
                        "area_90": 2666.4359108358776,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.05538644688644689,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "8c2647a5e6143608d7797221d4e1f297",
                        "classification": {
                            "BBH": 0.0011960071944848898,
                            "BNS": 0.0,
                            "NSBH": 0.0029221504005902776,
                            "Terrestrial": 0.9958818424049248
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-20T16:40:04Z",
                    "superevent_id": "S250820cw",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-20T16:40:05.585583Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-20T16:40:05.585598Z",
                "modified": "2025-08-20T16:40:05.591598Z"
            }
        },
        {
            "id": 9825,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771301,
                "topic": "igwn.gwalert",
                "uuid": "7f24eff5-0de2-4617-907b-5152ca6a7c4d",
                "title": "S250820cx - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250820cx/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250820cx/view/"
                    },
                    "event": {
                        "far": 1.146026889727679e-05,
                        "time": "2025-08-20T16:38:35.816Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 622.1264145127775,
                        "area_90": 2205.663699614947,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005275362318840579,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "191ea3f23b3cb940707bbbb3c1957baa",
                        "classification": {
                            "BBH": 0.12896960753745546,
                            "BNS": 1.9377328344664853e-14,
                            "NSBH": 1.3242403378677749e-12,
                            "Terrestrial": 0.871030392461201
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-20T16:38:56Z",
                    "superevent_id": "S250820cx",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-20T16:38:57.396656Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-20T16:38:57.396677Z",
                "modified": "2025-08-20T16:38:57.402070Z"
            }
        },
        {
            "id": 9824,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771298,
                "topic": "igwn.gwalert",
                "uuid": "33eba3c3-2781-41b2-893e-50cba94f1b9f",
                "title": "S250820cw - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250820cw/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250820cw/view/"
                    },
                    "event": {
                        "far": 1.257959155788723e-05,
                        "time": "2025-08-20T16:35:02.062Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 734.8015863823767,
                        "area_90": 2664.7573235454547,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.8073000686505327,
                            "HasMassGap": 0.05538644688644689,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "ab88f78b9643da7d36044dc16eec7d19",
                        "classification": {
                            "BBH": 0.0011863008849530227,
                            "BNS": 0.0,
                            "NSBH": 0.0029318567101221907,
                            "Terrestrial": 0.9958818424049248
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-20T16:35:28Z",
                    "superevent_id": "S250820cw",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-20T16:35:29.673450Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-20T16:35:29.673466Z",
                "modified": "2025-08-20T16:35:29.681698Z"
            }
        },
        {
            "id": 9823,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771239,
                "topic": "igwn.gwalert",
                "uuid": "1092bb6d-52a5-42f3-91ad-eb8ad7c0d15f",
                "title": "S250820bm - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250820bm/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250820bm/view/"
                    },
                    "event": {
                        "far": 2.074778379198495e-05,
                        "time": "2025-08-20T11:23:08.637Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1361.3342925325128,
                        "area_90": 6022.771198035334,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.02123784428132254,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "7df76cc7e885e601ead389468c24b4a6",
                        "classification": {
                            "BBH": 0.04998669552776282,
                            "BNS": 5.904144071947394e-14,
                            "NSBH": 4.023407494157141e-12,
                            "Terrestrial": 0.9500133044681547
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-20T11:28:10Z",
                    "superevent_id": "S250820bm",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-20T11:28:11.264552Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-20T11:28:11.264570Z",
                "modified": "2025-08-20T11:28:11.273715Z"
            }
        },
        {
            "id": 9822,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771237,
                "topic": "igwn.gwalert",
                "uuid": "eccdbc81-ceb2-4b79-81c5-7e1ab99846b5",
                "title": "S250820bm - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250820bm/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250820bm/view/"
                    },
                    "event": {
                        "far": 2.074778379198495e-05,
                        "time": "2025-08-20T11:23:08.637Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1361.3342925325128,
                        "area_90": 6022.771198035334,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.02123784428132254,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "7df76cc7e885e601ead389468c24b4a6",
                        "classification": {
                            "BBH": 0.04998669552776282,
                            "BNS": 5.904144071947394e-14,
                            "NSBH": 4.023407494157141e-12,
                            "Terrestrial": 0.9500133044681547
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-20T11:23:35Z",
                    "superevent_id": "S250820bm",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-20T11:23:37.295590Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-20T11:23:37.295619Z",
                "modified": "2025-08-20T11:23:37.308522Z"
            }
        },
        {
            "id": 9821,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771231,
                "topic": "igwn.gwalert",
                "uuid": "544e66f0-7df4-4c49-bf56-7714c6f51b73",
                "title": "S250820bi - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250820bi/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250820bi/view/"
                    },
                    "event": {
                        "far": 1.64953e-05,
                        "time": "2025-08-20T10:44:24.360Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 841.8115261468005,
                        "area_90": 3091.9577889579396,
                        "duration": 0.024346,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "5dd1332637bc6580c98241eb52ac865c",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 1298.187866
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-20T10:51:35Z",
                    "superevent_id": "S250820bi",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-20T10:51:36.351782Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-20T10:51:36.351798Z",
                "modified": "2025-08-20T10:51:36.357334Z"
            }
        },
        {
            "id": 9820,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771228,
                "topic": "igwn.gwalert",
                "uuid": "b354fe2c-6e3f-4e32-8e77-c34c4e7090e6",
                "title": "S250820bi - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250820bi/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250820bi/view/"
                    },
                    "event": {
                        "far": 1.64953e-05,
                        "time": "2025-08-20T10:44:24.360Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 841.8115261468005,
                        "area_90": 3091.9577889579396,
                        "duration": 0.024346,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "5dd1332637bc6580c98241eb52ac865c",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 1298.187866
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-20T10:47:00Z",
                    "superevent_id": "S250820bi",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-20T10:47:01.441289Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-20T10:47:01.441307Z",
                "modified": "2025-08-20T10:47:01.451387Z"
            }
        },
        {
            "id": 9819,
            "sequence_number": 2,
            "sequence_type": "UPDATE",
            "message": {
                "id": 5771209,
                "topic": "igwn.gwalert",
                "uuid": "56e758c1-9330-4c29-96e9-f8b12ec4fecf",
                "title": "S250818k - UPDATE",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250818k/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250818k/view/"
                    },
                    "event": {
                        "far": 6.81022356082428e-08,
                        "time": "2025-08-18T01:20:06.030Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 275.4981390405656,
                        "area_90": 948.8214659112243,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.8005802098765431,
                            "HasSSM": 1.0,
                            "HasMassGap": 0.07074074074074074,
                            "HasRemnant": 0.8005802098765431
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": true,
                        "skymap_hash": "d5f7000812bbf3c09f40c2dd412c1b09",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.29453192149752927,
                            "NSBH": 0.0,
                            "Terrestrial": 0.7054680785024707
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "UPDATE",
                    "sequence_num": 2,
                    "time_created": "2025-08-20T09:57:08Z",
                    "superevent_id": "S250818k",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-20T09:57:09.843362Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-20T09:57:09.843381Z",
                "modified": "2025-08-20T09:57:09.856385Z"
            }
        },
        {
            "id": 9818,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771183,
                "topic": "igwn.gwalert",
                "uuid": "86617cef-c914-4b09-a9d6-fba19af6f304",
                "title": "S250820am - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250820am/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250820am/view/"
                    },
                    "event": {
                        "far": 7.30138e-06,
                        "time": "2025-08-20T07:34:27.285Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 2199.788644098468,
                        "area_90": 7268.282967528707,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005275362318840579,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "c8adab15954464eb64a54fe933c913c9",
                        "classification": {
                            "BBH": 0.004779206369824207,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9952207936301758
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-20T07:40:35Z",
                    "superevent_id": "S250820am",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-20T07:40:36.464500Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-20T07:40:36.464517Z",
                "modified": "2025-08-20T07:40:36.511938Z"
            }
        },
        {
            "id": 9817,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771179,
                "topic": "igwn.gwalert",
                "uuid": "c97c0af6-abc9-42e5-8462-2295026fdf16",
                "title": "S250820am - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250820am/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250820am/view/"
                    },
                    "event": {
                        "far": 7.30138e-06,
                        "time": "2025-08-20T07:34:27.285Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 2199.788644098468,
                        "area_90": 7268.282967528707,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005275362318840579,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "c8adab15954464eb64a54fe933c913c9",
                        "classification": {
                            "BBH": 0.004779206369824207,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9952207936301758
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-20T07:35:56Z",
                    "superevent_id": "S250820am",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-20T07:35:57.628649Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-20T07:35:57.628667Z",
                "modified": "2025-08-20T07:35:57.649835Z"
            }
        },
        {
            "id": 9816,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771169,
                "topic": "igwn.gwalert",
                "uuid": "3a0a1b6a-1db8-4511-bf1e-8df19030db05",
                "title": "S250820ae - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250820ae/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250820ae/view/"
                    },
                    "event": {
                        "far": 1.619407811847169e-05,
                        "time": "2025-08-20T06:12:44.358Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 253.51913670659815,
                        "area_90": 998.9692612125915,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.05980945747936139,
                            "HasRemnant": 0.9501943267509226
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "58d450dae401bb4dfb1bad9a9b9d001d",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.0007309549450176707,
                            "NSBH": 0.0005982271202420002,
                            "Terrestrial": 0.9986708179347403
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-20T06:17:50Z",
                    "superevent_id": "S250820ae",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-20T06:17:51.528417Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-20T06:17:51.528435Z",
                "modified": "2025-08-20T06:17:51.539013Z"
            }
        },
        {
            "id": 9815,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771168,
                "topic": "igwn.gwalert",
                "uuid": "af71073a-22b0-4a27-ad1a-5f00563a0d1b",
                "title": "S250820ae - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250820ae/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250820ae/view/"
                    },
                    "event": {
                        "far": 1.619407811847169e-05,
                        "time": "2025-08-20T06:12:44.359Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 273.2949932218863,
                        "area_90": 1053.9429949739229,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.00200990099009901,
                            "HasRemnant": 0.9464267976423802
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "3b96cdbb224b1135c1e82ca9b0f52f1c",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.000741560305261899,
                            "NSBH": 0.0005876217599977224,
                            "Terrestrial": 0.9986708179347403
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-20T06:13:15Z",
                    "superevent_id": "S250820ae",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-20T06:13:16.679159Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-20T06:13:16.679178Z",
                "modified": "2025-08-20T06:13:16.691080Z"
            }
        },
        {
            "id": 9814,
            "sequence_number": 1,
            "sequence_type": "INITIAL",
            "message": {
                "id": 5771154,
                "topic": "igwn.gwalert",
                "uuid": "b6549e49-a5ad-417b-9b15-1117aebd1fd4",
                "title": "S250818k - INITIAL",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250818k/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250818k/view/"
                    },
                    "event": {
                        "far": 6.81022356082428e-08,
                        "time": "2025-08-18T01:20:06.030Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 205.20729625413034,
                        "area_90": 786.2083221515607,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": true,
                        "skymap_hash": "211f140c9b9ebc3aa4905059ee6c7ba1",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.29453192149752927,
                            "NSBH": 0.0,
                            "Terrestrial": 0.7054680785024707
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "INITIAL",
                    "sequence_num": 1,
                    "time_created": "2025-08-20T04:52:51Z",
                    "superevent_id": "S250818k",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-20T04:52:51.803794Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-20T04:52:51.803813Z",
                "modified": "2025-08-20T04:52:51.825327Z"
            }
        },
        {
            "id": 9813,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771135,
                "topic": "igwn.gwalert",
                "uuid": "07b7fa94-e086-4748-b0fd-9f2278a15fff",
                "title": "S250820i - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250820i/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250820i/view/"
                    },
                    "event": {
                        "far": 9.512592e-06,
                        "time": "2025-08-20T03:20:24.123Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1225.7883688309093,
                        "area_90": 4416.363161101161,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.08057609944436267,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "2f6cc56b87c02c975561d9b88e363f15",
                        "classification": {
                            "BBH": 0.082702943,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.917297057
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-20T03:25:38Z",
                    "superevent_id": "S250820i",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-20T03:25:39.883881Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-20T03:25:39.883897Z",
                "modified": "2025-08-20T03:25:39.892112Z"
            }
        },
        {
            "id": 9812,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771132,
                "topic": "igwn.gwalert",
                "uuid": "719cd4c9-c4a7-4eba-8427-744493bb6221",
                "title": "S250820i - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250820i/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250820i/view/"
                    },
                    "event": {
                        "far": 9.512592e-06,
                        "time": "2025-08-20T03:20:24.123Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1225.7883688309093,
                        "area_90": 4416.363161101161,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.08057609944436267,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "2f6cc56b87c02c975561d9b88e363f15",
                        "classification": {
                            "BBH": 0.082702943,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.917297057
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-20T03:21:03Z",
                    "superevent_id": "S250820i",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-20T03:21:05.024297Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-20T03:21:05.024310Z",
                "modified": "2025-08-20T03:21:05.033101Z"
            }
        },
        {
            "id": 9811,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771074,
                "topic": "igwn.gwalert",
                "uuid": "fa1e316d-dfad-430e-bb2f-7234df218435",
                "title": "S250815cl - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250815cl/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250815cl/view/"
                    },
                    "event": {
                        "far": 6.195719667428971e-06,
                        "time": "2025-08-15T20:30:34.872Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 542.6033416290195,
                        "area_90": 1773.8471191538015,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.5078667138931329,
                            "HasRemnant": 0.9894654716352272
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "3f13c3b680397d1355688f2ea694dd62",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.000442064134925069,
                            "NSBH": 0.001671780128715072,
                            "Terrestrial": 0.9978861557363599
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-15T20:35:43Z",
                    "superevent_id": "S250815cl",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-15T20:35:44.826298Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-15T20:35:44.826314Z",
                "modified": "2025-08-15T20:35:44.842356Z"
            }
        },
        {
            "id": 9810,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771073,
                "topic": "igwn.gwalert",
                "uuid": "514d7d78-209b-46e4-bf6f-0605176967b2",
                "title": "S250815cl - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250815cl/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250815cl/view/"
                    },
                    "event": {
                        "far": 6.195719667428971e-06,
                        "time": "2025-08-15T20:30:34.872Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 538.6691526670921,
                        "area_90": 1798.3964582762283,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.48070057368082714,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "568b78f0520ebc406567285c60d59f6d",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.0004451147674919142,
                            "NSBH": 0.0016687294961482398,
                            "Terrestrial": 0.9978861557363599
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-15T20:31:07Z",
                    "superevent_id": "S250815cl",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-15T20:31:08.013602Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-15T20:31:08.013619Z",
                "modified": "2025-08-15T20:31:08.041677Z"
            }
        },
        {
            "id": 9809,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771072,
                "topic": "igwn.gwalert",
                "uuid": "b22e68ab-0439-4970-bf8f-c76b36a1776a",
                "title": "S250815cf - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250815cf/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250815cf/view/"
                    },
                    "event": {
                        "far": 2.201109233459565e-05,
                        "time": "2025-08-15T19:37:12.101Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 806.7710164592344,
                        "area_90": 3160.779867865255,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.015682288725766987,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "6624406156fd29634f74205494f2c348",
                        "classification": {
                            "BBH": 0.053141815835932936,
                            "BNS": 2.5617641984789997e-15,
                            "NSBH": 1.8355104291165162e-13,
                            "Terrestrial": 0.946858184163881
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-15T19:42:12Z",
                    "superevent_id": "S250815cf",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-15T19:42:13.439216Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-15T19:42:13.439237Z",
                "modified": "2025-08-15T19:42:13.510131Z"
            }
        },
        {
            "id": 9808,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771071,
                "topic": "igwn.gwalert",
                "uuid": "ae2343b4-48e1-4f3f-846e-3e0eb2f9b38c",
                "title": "S250815cf - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250815cf/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250815cf/view/"
                    },
                    "event": {
                        "far": 2.067544191208712e-05,
                        "time": "2025-08-15T19:37:12.101Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 968.7546899849896,
                        "area_90": 3498.1759132401444,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.015682288725766987,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "9a08aa66eb071038bbde703abe6ea3b0",
                        "classification": {
                            "BBH": 0.05055720153818166,
                            "BNS": 2.5851948715947238e-15,
                            "NSBH": 1.9701056342229627e-13,
                            "Terrestrial": 0.9494427984616187
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-15T19:37:37Z",
                    "superevent_id": "S250815cf",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-15T19:37:38.579463Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-15T19:37:38.579481Z",
                "modified": "2025-08-15T19:37:38.658206Z"
            }
        },
        {
            "id": 9807,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771070,
                "topic": "igwn.gwalert",
                "uuid": "3db700f8-7538-4ca9-961e-25244a352d88",
                "title": "S250815ce - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250815ce/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250815ce/view/"
                    },
                    "event": {
                        "far": 1.02997e-05,
                        "time": "2025-08-15T19:26:29.176Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 786.4181455628635,
                        "area_90": 2879.6164967195136,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005275362318840579,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "eaa88eb4755267d5fe2a13888ffd149a",
                        "classification": {
                            "BBH": 0.003072973753565744,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9969270262464343
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-15T19:32:12Z",
                    "superevent_id": "S250815ce",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-15T19:32:13.453486Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-15T19:32:13.453506Z",
                "modified": "2025-08-15T19:32:13.514559Z"
            }
        },
        {
            "id": 9806,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771069,
                "topic": "igwn.gwalert",
                "uuid": "8f28ec6b-1965-47f8-9de3-610f34e2744b",
                "title": "S250815ce - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250815ce/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250815ce/view/"
                    },
                    "event": {
                        "far": 1.02997e-05,
                        "time": "2025-08-15T19:26:29.176Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 786.4181455628635,
                        "area_90": 2879.6164967195136,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005275362318840579,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "eaa88eb4755267d5fe2a13888ffd149a",
                        "classification": {
                            "BBH": 0.003072973753565744,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9969270262464343
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-15T19:27:36Z",
                    "superevent_id": "S250815ce",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-15T19:27:37.515683Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-15T19:27:37.515704Z",
                "modified": "2025-08-15T19:27:37.555683Z"
            }
        },
        {
            "id": 9805,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771068,
                "topic": "igwn.gwalert",
                "uuid": "2695a6f6-e7ce-44a0-985c-65ca34ef04c2",
                "title": "S250815cc - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250815cc/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250815cc/view/"
                    },
                    "event": {
                        "far": 1.68088e-05,
                        "time": "2025-08-15T19:18:39.989Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 354.02455072063543,
                        "area_90": 1828.820852915133,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.04933550113756063,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "766e1f31ce742f794bc305295f97de5e",
                        "classification": {
                            "BBH": 0.041809775,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.958190225
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-15T19:23:42Z",
                    "superevent_id": "S250815cc",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-15T19:23:43.908323Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-15T19:23:43.908341Z",
                "modified": "2025-08-15T19:23:43.975531Z"
            }
        },
        {
            "id": 9804,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5771067,
                "topic": "igwn.gwalert",
                "uuid": "1a77188d-fe0d-4c98-a9b1-bae1081b1724",
                "title": "S250815cc - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250815cc/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250815cc/view/"
                    },
                    "event": {
                        "far": 1.919427041886467e-05,
                        "time": "2025-08-15T19:18:40.000Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 334.56342932230143,
                        "area_90": 1872.4641224661136,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.05944419678973455,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "032461f19753d12f84f507fb086732bf",
                        "classification": {
                            "BBH": 0.055525271892619826,
                            "BNS": 2.0769248300700544e-16,
                            "NSBH": 1.4031494638107698e-14,
                            "Terrestrial": 0.944474728107366
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-15T19:19:06Z",
                    "superevent_id": "S250815cc",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-15T19:19:07.823014Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-15T19:19:07.823055Z",
                "modified": "2025-08-15T19:19:07.917571Z"
            }
        },
        {
            "id": 9803,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5770784,
                "topic": "igwn.gwalert",
                "uuid": "e5daa5a0-98d7-4980-8144-bae4d0cc31e4",
                "title": "S250815bo - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250815bo/files/cwb.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250815bo/view/"
                    },
                    "event": {
                        "far": 3.87551e-06,
                        "time": "2025-08-15T17:08:01.301Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 1542.621719898125,
                        "area_90": 5170.048854500788,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "03fd082d4fae159528070284a3e85be9",
                        "classification": {
                            "BBH": 0.007707032732116703,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9922929672678833
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-15T17:13:17Z",
                    "superevent_id": "S250815bo",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-15T17:13:18.089262Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-15T17:13:18.089277Z",
                "modified": "2025-08-15T17:13:18.095949Z"
            }
        },
        {
            "id": 9802,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5770763,
                "topic": "igwn.gwalert",
                "uuid": "11b99d7d-2750-4488-8846-bc38275aabdf",
                "title": "S250815bo - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "gracedb": "https://gracedb.ligo.org/superevents/S250815bo/view/"
                    },
                    "event": {
                        "far": 1.3183051132474434e-05,
                        "time": "2025-08-15T17:08:01.268Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 3429.3538343328282,
                        "area_90": 18273.940537182738,
                        "duration": 0.21875,
                        "pipeline": "MLy",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "e7fcc224f232784d18f3819bc391f4c4",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 80.0
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-15T17:08:43Z",
                    "superevent_id": "S250815bo",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-15T17:08:44.127049Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-15T17:08:44.127065Z",
                "modified": "2025-08-15T17:08:44.131119Z"
            }
        },
        {
            "id": 9801,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5770453,
                "topic": "igwn.gwalert",
                "uuid": "e19cd897-393e-4205-8100-47de67a3bafc",
                "title": "S250815be - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250815be/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250815be/view/"
                    },
                    "event": {
                        "far": 2.217387004467834e-06,
                        "time": "2025-08-15T15:51:41.689Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1483.6613413220407,
                        "area_90": 5420.9976544189285,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.015682288725766987,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "139639f2710323aeb0a7db7967f683c5",
                        "classification": {
                            "BBH": 0.43478779695786335,
                            "BNS": 4.418216336065114e-15,
                            "NSBH": 3.645727168998969e-13,
                            "Terrestrial": 0.5652122030417677
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-15T15:56:44Z",
                    "superevent_id": "S250815be",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-15T15:56:45.235825Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-15T15:56:45.235841Z",
                "modified": "2025-08-15T15:56:45.239877Z"
            }
        },
        {
            "id": 9800,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5770432,
                "topic": "igwn.gwalert",
                "uuid": "fd34d288-e282-4b49-bd8a-549f5aa4a4ed",
                "title": "S250815be - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250815be/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250815be/view/"
                    },
                    "event": {
                        "far": 5.102551423080691e-07,
                        "time": "2025-08-15T15:51:41.692Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1486.389045668977,
                        "area_90": 5505.766312585256,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.015682288725766987,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "371b4ce5e16baf5ec12c7e8b99deb390",
                        "classification": {
                            "BBH": 0.7711624088541342,
                            "BNS": 1.1655506726905705e-14,
                            "NSBH": 8.895710528436607e-13,
                            "Terrestrial": 0.2288375911449645
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-15T15:52:08Z",
                    "superevent_id": "S250815be",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-15T15:52:09.489986Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-15T15:52:09.490003Z",
                "modified": "2025-08-15T15:52:09.575136Z"
            }
        },
        {
            "id": 9799,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5670941,
                "topic": "igwn.gwalert",
                "uuid": "28e85ec8-0d48-488d-9414-881d0861614e",
                "title": "S250815v - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250815v/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250815v/view/"
                    },
                    "event": {
                        "far": 1.620978e-05,
                        "time": "2025-08-15T04:17:08.288Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 749.9088719961778,
                        "area_90": 2669.7930854167225,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.015682288725766987,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "eddfb61374dd71eef627d4fc31c2616d",
                        "classification": {
                            "BBH": 0.043866354436722044,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.956133645563278
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-15T04:22:09Z",
                    "superevent_id": "S250815v",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-15T04:22:09.705492Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-15T04:22:09.705508Z",
                "modified": "2025-08-15T04:22:09.711380Z"
            }
        },
        {
            "id": 9798,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5670094,
                "topic": "igwn.gwalert",
                "uuid": "7bd02cee-061b-470f-9e2c-b52f2aaa0f85",
                "title": "S250815v - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250815v/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250815v/view/"
                    },
                    "event": {
                        "far": 1.271759149364385e-05,
                        "time": "2025-08-15T04:17:08.291Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 856.0795181153904,
                        "area_90": 3016.421360888934,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.015682288725766987,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "760fe471474c591f3c61bbd19d5372f8",
                        "classification": {
                            "BBH": 0.08975616608354232,
                            "BNS": 5.372271462930283e-15,
                            "NSBH": 3.920142306113606e-13,
                            "Terrestrial": 0.9102438339160603
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-15T04:17:34Z",
                    "superevent_id": "S250815v",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-15T04:17:34.647199Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-15T04:17:34.647216Z",
                "modified": "2025-08-15T04:17:34.655538Z"
            }
        },
        {
            "id": 9797,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5617417,
                "topic": "igwn.gwalert",
                "uuid": "4d4732fb-4b74-4057-8bfc-e5a6299fd979",
                "title": "S250814ep - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250814ep/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814ep/view/"
                    },
                    "event": {
                        "far": 4.96761e-06,
                        "time": "2025-08-14T23:56:57.972Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 85.60795181153907,
                        "area_90": 292.9134821786973,
                        "duration": 0.008278,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "485a0f03eef7607bdc5b04d096e8c458",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 859.617859
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-14T23:58:28Z",
                    "superevent_id": "S250814ep",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-15T01:39:41.944122Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-15T01:39:41.944140Z",
                "modified": "2025-08-15T01:39:41.949799Z"
            }
        },
        {
            "id": 9796,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5617416,
                "topic": "igwn.gwalert",
                "uuid": "05a49ed2-8519-48e1-acdf-39a5ab1564fb",
                "title": "S250815g - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250815g/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250815g/view/"
                    },
                    "event": {
                        "far": 3.74723e-06,
                        "time": "2025-08-15T01:07:26.925Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 262.69891095109523,
                        "area_90": 2299.6645878785976,
                        "duration": 0.0583,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "9be78d65ee4498182f34667a5579a830",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 460.559967
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-15T01:16:04Z",
                    "superevent_id": "S250815g",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-15T01:39:41.908892Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-15T01:39:41.908910Z",
                "modified": "2025-08-15T01:39:41.914600Z"
            }
        },
        {
            "id": 9795,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5617415,
                "topic": "igwn.gwalert",
                "uuid": "233dc6be-80d9-4db4-a89e-5399d1997920",
                "title": "S250814eq - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250814eq/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814eq/view/"
                    },
                    "event": {
                        "far": 1.80197e-05,
                        "time": "2025-08-14T23:58:53.395Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 1398.2632129218043,
                        "area_90": 4418.881042036794,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005275362318840579,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "a82cad79e9a96b43118312da09cacd6d",
                        "classification": {
                            "BBH": 0.0011760579045836383,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9988239420954164
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-15T00:00:23Z",
                    "superevent_id": "S250814eq",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-15T01:39:41.832946Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-15T01:39:41.832966Z",
                "modified": "2025-08-15T01:39:41.838561Z"
            }
        },
        {
            "id": 9794,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5609609,
                "topic": "igwn.gwalert",
                "uuid": "f067c45e-6c04-49ba-bccd-baede882a437",
                "title": "S250814eq - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250814eq/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814eq/view/"
                    },
                    "event": {
                        "far": 1.80197e-05,
                        "time": "2025-08-14T23:58:53.395Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 1398.2632129218043,
                        "area_90": 4418.881042036794,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005275362318840579,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "a82cad79e9a96b43118312da09cacd6d",
                        "classification": {
                            "BBH": 0.0011760579045836383,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9988239420954164
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-15T00:04:57Z",
                    "superevent_id": "S250814eq",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-15T01:38:08.295242Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-15T01:38:08.295259Z",
                "modified": "2025-08-15T01:38:08.301305Z"
            }
        },
        {
            "id": 9793,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5602200,
                "topic": "igwn.gwalert",
                "uuid": "0aa995ff-e9c9-42b7-9e15-93a7d17a2dd9",
                "title": "S250815g - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250815g/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250815g/view/"
                    },
                    "event": {
                        "far": 3.74723e-06,
                        "time": "2025-08-15T01:07:26.925Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 262.69891095109523,
                        "area_90": 2299.6645878785976,
                        "duration": 0.0583,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "9be78d65ee4498182f34667a5579a830",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 460.559967
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-15T01:11:29Z",
                    "superevent_id": "S250815g",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-15T01:36:40.957644Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-15T01:36:40.957661Z",
                "modified": "2025-08-15T01:36:40.963507Z"
            }
        },
        {
            "id": 9792,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5602199,
                "topic": "igwn.gwalert",
                "uuid": "07582e0c-19d7-477d-932e-2adac82ee6c2",
                "title": "S250814ep - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250814ep/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814ep/view/"
                    },
                    "event": {
                        "far": 4.96761e-06,
                        "time": "2025-08-14T23:56:57.972Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 85.60795181153907,
                        "area_90": 292.9134821786973,
                        "duration": 0.008278,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "485a0f03eef7607bdc5b04d096e8c458",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 859.617859
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-15T00:03:01Z",
                    "superevent_id": "S250814ep",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-15T01:36:40.889331Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-15T01:36:40.889356Z",
                "modified": "2025-08-15T01:36:40.896762Z"
            }
        },
        {
            "id": 9791,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5595580,
                "topic": "igwn.gwalert",
                "uuid": "c3ba5f45-8c5f-483c-acca-4884070a4929",
                "title": "S250814ek - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250814ek/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814ek/view/"
                    },
                    "event": {
                        "far": 7.14727e-06,
                        "time": "2025-08-14T23:01:36.574Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 894.6870257951041,
                        "area_90": 5255.656806312328,
                        "duration": 0.027109,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "38666dab1c30a4f3f837762572ff9bbc",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 794.044739
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-14T23:08:05Z",
                    "superevent_id": "S250814ek",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-14T23:08:06.235759Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-14T23:08:06.235775Z",
                "modified": "2025-08-14T23:08:06.241257Z"
            }
        },
        {
            "id": 9790,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5594463,
                "topic": "igwn.gwalert",
                "uuid": "61bad80e-3662-490b-b6db-3911f343223b",
                "title": "S250814ek - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250814ek/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814ek/view/"
                    },
                    "event": {
                        "far": 7.14727e-06,
                        "time": "2025-08-14T23:01:36.574Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 894.6870257951041,
                        "area_90": 5255.656806312328,
                        "duration": 0.027109,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "38666dab1c30a4f3f837762572ff9bbc",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 794.044739
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-14T23:03:31Z",
                    "superevent_id": "S250814ek",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-14T23:03:32.658272Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-14T23:03:32.658290Z",
                "modified": "2025-08-14T23:03:32.665782Z"
            }
        },
        {
            "id": 9789,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5589505,
                "topic": "igwn.gwalert",
                "uuid": "31c94af9-c695-42b9-a12d-85c12393e3dc",
                "title": "S250814ee - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250814ee/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814ee/view/"
                    },
                    "event": {
                        "far": 2.283938788474049e-05,
                        "time": "2025-08-14T22:38:13.086Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 768.5831556021261,
                        "area_90": 2987.8853769517546,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005275362318840579,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "bbc2cc986fa956c626bdc024084faa95",
                        "classification": {
                            "BBH": 0.043507919707714025,
                            "BNS": 8.522995264372301e-17,
                            "NSBH": 6.258704686902445e-15,
                            "Terrestrial": 0.9564920802922796
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-14T22:43:13Z",
                    "superevent_id": "S250814ee",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-14T22:43:55.433230Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-14T22:43:55.433256Z",
                "modified": "2025-08-14T22:43:55.495802Z"
            }
        },
        {
            "id": 9788,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5588388,
                "topic": "igwn.gwalert",
                "uuid": "ea5d1878-3265-411f-884d-0f802bf3a950",
                "title": "S250814ee - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250814ee/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814ee/view/"
                    },
                    "event": {
                        "far": 2.283938788474049e-05,
                        "time": "2025-08-14T22:38:13.091Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 711.7210111390696,
                        "area_90": 2863.6699174605014,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.024959599650136735,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "7f86cf1a2928b89f43051733ad2d0901",
                        "classification": {
                            "BBH": 0.043507919707714025,
                            "BNS": 8.522995264372301e-17,
                            "NSBH": 6.258704686902445e-15,
                            "Terrestrial": 0.9564920802922796
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-14T22:38:39Z",
                    "superevent_id": "S250814ee",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-14T22:38:47.633222Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-14T22:38:47.633243Z",
                "modified": "2025-08-14T22:38:48.493039Z"
            }
        },
        {
            "id": 9787,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5456358,
                "topic": "igwn.gwalert",
                "uuid": "8cc31e6c-05bf-4e44-9530-da2be276ef0c",
                "title": "S250814cb - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250814cb/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814cb/view/"
                    },
                    "event": {
                        "far": 1.688779175895674e-05,
                        "time": "2025-08-14T09:45:11.638Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 633.0372319005228,
                        "area_90": 13193.696102719547,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005275362318840579,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "5639fb2a8c6e61b0f31b284b6944a338",
                        "classification": {
                            "BBH": 0.07738119698866229,
                            "BNS": 6.693576423724052e-16,
                            "NSBH": 4.824289208454157e-14,
                            "Terrestrial": 0.9226188030112888
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-14T09:50:36Z",
                    "superevent_id": "S250814cb",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-14T11:18:13.570223Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-14T11:18:13.570248Z",
                "modified": "2025-08-14T11:18:13.590515Z"
            }
        },
        {
            "id": 9786,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5456357,
                "topic": "igwn.gwalert",
                "uuid": "b196a3de-db70-4a88-aed7-d19914d4ac2c",
                "title": "S250814cb - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250814cb/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814cb/view/"
                    },
                    "event": {
                        "far": 1.688779175895674e-05,
                        "time": "2025-08-14T09:45:11.638Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 633.0372319005228,
                        "area_90": 13193.696102719547,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.005275362318840579,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "5639fb2a8c6e61b0f31b284b6944a338",
                        "classification": {
                            "BBH": 0.07738119698866229,
                            "BNS": 6.693576423724052e-16,
                            "NSBH": 4.824289208454157e-14,
                            "Terrestrial": 0.9226188030112888
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-14T09:46:01Z",
                    "superevent_id": "S250814cb",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-14T11:18:13.485806Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-14T11:18:13.485833Z",
                "modified": "2025-08-14T11:18:13.495838Z"
            }
        },
        {
            "id": 9785,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5442626,
                "topic": "igwn.gwalert",
                "uuid": "95fa180c-6f3f-45cf-8160-fcbab0eca830",
                "title": "S250814bx - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814bx/view/"
                    },
                    "event": {
                        "far": 1.060287321583982e-05,
                        "time": "2025-08-14T08:32:44.512Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 7724.01941687837,
                        "area_90": 23208.9871710244,
                        "duration": 0.25,
                        "pipeline": "MLy",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "88eb71a019e48aba70aa8f72290e77ef",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 72.0
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-14T08:38:13Z",
                    "superevent_id": "S250814bx",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-14T08:38:14.740802Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-14T08:38:14.740822Z",
                "modified": "2025-08-14T08:38:14.746479Z"
            }
        },
        {
            "id": 9784,
            "sequence_number": 3,
            "sequence_type": "INITIAL",
            "message": {
                "id": 5442592,
                "topic": "igwn.gwalert",
                "uuid": "45b7c2f1-4962-4a17-ba92-a6163bfaed75",
                "title": "S250814bg - INITIAL",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250814bg/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814bg/view/",
                        "combined_skymap": "https://gracedb.ligo.org/api/superevents/S250814bg/files/combined-ext.multiorder.fits,1"
                    },
                    "event": {
                        "far": 0.0001197024141782156,
                        "time": "2025-08-14T07:35:05.587Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 447.7631597201576,
                        "area_90": 7865.860042919058,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.030886006576543657,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": true,
                        "skymap_hash": "d81dd974045f374f4df16aad9914d42e",
                        "classification": {
                            "BBH": 0.005037153213038979,
                            "BNS": 3.503435648765614e-17,
                            "NSBH": 2.7018489094999688e-15,
                            "Terrestrial": 0.9949628467869582
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "INITIAL",
                    "sequence_num": 3,
                    "time_created": "2025-08-14T08:38:04Z",
                    "superevent_id": "S250814bg",
                    "external_coinc": {
                        "ivorn": "ivo://nasa.gsfc.gcn/Fermi#GBM_Fin_Pos2025-08-14T07:35:09.28_776849714_0-592",
                        "search": "GRB",
                        "area_50": 136.03114034024114,
                        "area_90": 470.94864666911604,
                        "observatory": "Fermi",
                        "gcn_notice_id": 776849714,
                        "time_difference": 3.69,
                        "combined_skymap_hash": "fe8b8ec064aad42e4307f49e8585e6cf",
                        "time_coincidence_far": 7.515562534020386e-09,
                        "combined_skymap_version": 1,
                        "time_sky_position_coincidence_far": 1.4635791789899117e-08
                    }
                },
                "message_text": "",
                "published": "2025-08-14T08:38:06.317780Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-14T08:38:06.317798Z",
                "modified": "2025-08-14T08:38:06.323948Z"
            }
        },
        {
            "id": 9783,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5439473,
                "topic": "igwn.gwalert",
                "uuid": "5cfed75e-3977-41ed-8cdc-a7bc33cc4095",
                "title": "S250814bl - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250814bl/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814bl/view/"
                    },
                    "event": {
                        "far": 5.82288e-06,
                        "time": "2025-08-14T08:04:28.133Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 1039.8848264166359,
                        "area_90": 4004.2699813024774,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "9625a7837c48e5444b9f152fa23d2b2b",
                        "classification": {
                            "BBH": 0.004623526416602797,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9953764735833972
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-14T08:10:08Z",
                    "superevent_id": "S250814bl",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-14T08:36:38.154891Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-14T08:36:38.154908Z",
                "modified": "2025-08-14T08:36:38.160499Z"
            }
        },
        {
            "id": 9782,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5439268,
                "topic": "igwn.gwalert",
                "uuid": "bc238268-1ff0-4a7b-9b7c-10bd5089caa5",
                "title": "S250814bx - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814bx/view/"
                    },
                    "event": {
                        "far": 1.060287321583982e-05,
                        "time": "2025-08-14T08:32:44.512Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 7724.01941687837,
                        "area_90": 23208.9871710244,
                        "duration": 0.25,
                        "pipeline": "MLy",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "88eb71a019e48aba70aa8f72290e77ef",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 72.0
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-14T08:33:34Z",
                    "superevent_id": "S250814bx",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-14T08:36:35.539686Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-14T08:36:35.539704Z",
                "modified": "2025-08-14T08:36:35.545327Z"
            }
        },
        {
            "id": 9781,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5436275,
                "topic": "igwn.gwalert",
                "uuid": "bb4c5fe8-5650-4c4e-b1a6-e2c64956b60c",
                "title": "S250814bo - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814bo/view/"
                    },
                    "event": {
                        "far": 6.547456697205125e-06,
                        "time": "2025-08-14T08:12:12.634Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 6590.1337021980835,
                        "area_90": 22265.621113807047,
                        "duration": 0.28125,
                        "pipeline": "MLy",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "5103f2dd5db3c59b47ed9b926ccd1b0a",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 64.0
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-14T08:17:41Z",
                    "superevent_id": "S250814bo",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-14T08:35:54.680828Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-14T08:35:54.680854Z",
                "modified": "2025-08-14T08:35:54.701103Z"
            }
        },
        {
            "id": 9780,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5423160,
                "topic": "igwn.gwalert",
                "uuid": "8fe22a2a-7e00-49d1-90f2-ef09a44fc932",
                "title": "S250814bl - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250814bl/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814bl/view/"
                    },
                    "event": {
                        "far": 5.82288e-06,
                        "time": "2025-08-14T08:04:28.133Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 1039.8848264166359,
                        "area_90": 4004.2699813024774,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "9625a7837c48e5444b9f152fa23d2b2b",
                        "classification": {
                            "BBH": 0.004623526416602797,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9953764735833972
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-14T08:05:32Z",
                    "superevent_id": "S250814bl",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-14T08:33:31.293333Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-14T08:33:31.293356Z",
                "modified": "2025-08-14T08:33:31.299352Z"
            }
        },
        {
            "id": 9779,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5423159,
                "topic": "igwn.gwalert",
                "uuid": "ac89255e-e8e0-4d9f-9459-f926160f1ec0",
                "title": "S250814bs - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250814bs/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814bs/view/"
                    },
                    "event": {
                        "far": 1.196653e-05,
                        "time": "2025-08-14T08:22:35.167Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 584.5680238895778,
                        "area_90": 2685.7396646757343,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.09026853665292145,
                            "HasMassGap": 0.009562880356358619,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "707dd7fbea2cd2c9a567c6b7e03d1fac",
                        "classification": {
                            "BBH": 0.06421357076051327,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9357864292394867
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-14T08:27:49Z",
                    "superevent_id": "S250814bs",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-14T08:33:31.252108Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-14T08:33:31.252126Z",
                "modified": "2025-08-14T08:33:31.257843Z"
            }
        },
        {
            "id": 9778,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5423081,
                "topic": "igwn.gwalert",
                "uuid": "c650a5d7-d707-4ec3-ac75-c9d81eaa2cf7",
                "title": "S250814bo - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814bo/view/"
                    },
                    "event": {
                        "far": 6.547456697205125e-06,
                        "time": "2025-08-14T08:12:12.634Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 6590.1337021980835,
                        "area_90": 22265.621113807047,
                        "duration": 0.28125,
                        "pipeline": "MLy",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "5103f2dd5db3c59b47ed9b926ccd1b0a",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 64.0
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-14T08:13:06Z",
                    "superevent_id": "S250814bo",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-14T08:33:30.190282Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-14T08:33:30.190309Z",
                "modified": "2025-08-14T08:33:30.196622Z"
            }
        },
        {
            "id": 9777,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5417608,
                "topic": "igwn.gwalert",
                "uuid": "0a674f9d-7936-4331-b478-bbb612874028",
                "title": "S250814bg - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250814bg/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814bg/view/",
                        "combined_skymap": "https://gracedb.ligo.org/api/superevents/S250814bg/files/combined-ext.multiorder.fits,1"
                    },
                    "event": {
                        "far": 0.0001197024141782156,
                        "time": "2025-08-14T07:35:05.587Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 447.7631597201576,
                        "area_90": 7865.860042919058,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.030886006576543657,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": true,
                        "skymap_hash": "d81dd974045f374f4df16aad9914d42e",
                        "classification": {
                            "BBH": 0.005037153213038979,
                            "BNS": 3.503435648765614e-17,
                            "NSBH": 2.7018489094999688e-15,
                            "Terrestrial": 0.9949628467869582
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-14T07:37:16Z",
                    "superevent_id": "S250814bg",
                    "external_coinc": {
                        "ivorn": "ivo://nasa.gsfc.gcn/Fermi#GBM_Gnd_Pos_2025-08-14T07:35:09.28_776849714_0-551",
                        "search": "GRB",
                        "area_50": 67.79918977721458,
                        "area_90": 302.2506239816714,
                        "observatory": "Fermi",
                        "gcn_notice_id": 776849714,
                        "time_difference": 3.69,
                        "combined_skymap_hash": "be6f50a89f638889f235e42ac6f2cf76",
                        "time_coincidence_far": 7.515562534020386e-09,
                        "combined_skymap_version": 1,
                        "time_sky_position_coincidence_far": 1.0919989637891418e-08
                    }
                },
                "message_text": "",
                "published": "2025-08-14T08:32:18.365428Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-14T08:32:18.365447Z",
                "modified": "2025-08-14T08:32:18.371873Z"
            }
        },
        {
            "id": 9776,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5417510,
                "topic": "igwn.gwalert",
                "uuid": "488fb6f6-3e92-46d7-9c5b-6192c32190a9",
                "title": "S250814bg - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250814bg/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814bg/view/",
                        "combined_skymap": "https://gracedb.ligo.org/api/superevents/S250814bg/files/combined-ext.multiorder.fits,0"
                    },
                    "event": {
                        "far": 0.0001197024141782156,
                        "time": "2025-08-14T07:35:05.587Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 447.7631597201576,
                        "area_90": 7865.860042919058,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.030886006576543657,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": true,
                        "skymap_hash": "d81dd974045f374f4df16aad9914d42e",
                        "classification": {
                            "BBH": 0.005037153213038979,
                            "BNS": 3.503435648765614e-17,
                            "NSBH": 2.7018489094999688e-15,
                            "Terrestrial": 0.9949628467869582
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-14T07:41:53Z",
                    "superevent_id": "S250814bg",
                    "external_coinc": {
                        "ivorn": "ivo://nasa.gsfc.gcn/Fermi#GBM_Gnd_Pos_2025-08-14T07:35:09.28_776849714_0-551",
                        "search": "GRB",
                        "area_50": 67.79918977721458,
                        "area_90": 302.2506239816714,
                        "observatory": "Fermi",
                        "gcn_notice_id": 776849714,
                        "time_difference": 3.69,
                        "combined_skymap_hash": "be6f50a89f638889f235e42ac6f2cf76",
                        "time_coincidence_far": 7.515562534020386e-09,
                        "combined_skymap_version": 0,
                        "time_sky_position_coincidence_far": 1.0919989637891418e-08
                    }
                },
                "message_text": "",
                "published": "2025-08-14T08:32:16.262023Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-14T08:32:16.262044Z",
                "modified": "2025-08-14T08:32:16.267853Z"
            }
        },
        {
            "id": 9775,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5410076,
                "topic": "igwn.gwalert",
                "uuid": "e0d26eca-8a44-424f-8d7b-5f424973c402",
                "title": "S250814bs - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250814bs/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814bs/view/"
                    },
                    "event": {
                        "far": 1.196653e-05,
                        "time": "2025-08-14T08:22:35.167Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 867.8296291483467,
                        "area_90": 3389.0677393626925,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.10507676884230896,
                            "HasMassGap": 0.011201769245247507,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "342409a5d3bc2e9ca4303f32f9abf2c6",
                        "classification": {
                            "BBH": 0.064213571,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.935786429
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-14T08:23:14Z",
                    "superevent_id": "S250814bs",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-14T08:30:39.728357Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-14T08:30:39.728374Z",
                "modified": "2025-08-14T08:30:39.736092Z"
            }
        },
        {
            "id": 9774,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5401469,
                "topic": "igwn.gwalert",
                "uuid": "ffb47051-72ac-42a6-a796-3703485cb91b",
                "title": "S250814at - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250814at/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814at/view/"
                    },
                    "event": {
                        "far": 2.06073e-05,
                        "time": "2025-08-14T05:38:31.808Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1032.3311836097353,
                        "area_90": 4272.843947770051,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.14124849377803356,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "7b829a57e8a7b52c75517526470873ba",
                        "classification": {
                            "BBH": 0.031926067950652344,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9680739320493477
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-14T05:43:44Z",
                    "superevent_id": "S250814at",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-14T06:06:42.547568Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-14T06:06:42.547586Z",
                "modified": "2025-08-14T06:06:42.552641Z"
            }
        },
        {
            "id": 9773,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5380637,
                "topic": "igwn.gwalert",
                "uuid": "0abe9294-1690-4997-b894-19bb37255d1e",
                "title": "S250814at - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250814at/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814at/view/"
                    },
                    "event": {
                        "far": 2.06073e-05,
                        "time": "2025-08-14T05:38:31.808Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 878.1109763021835,
                        "area_90": 2960.188686659786,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.2554525039639322,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "08dd8f08daac0ba0f4af6442b623c47c",
                        "classification": {
                            "BBH": 0.031926068,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.968073932
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-14T05:39:09Z",
                    "superevent_id": "S250814at",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-14T06:02:43.908914Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-14T06:02:43.908934Z",
                "modified": "2025-08-14T06:02:44.113013Z"
            }
        },
        {
            "id": 9772,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5360721,
                "topic": "igwn.gwalert",
                "uuid": "d0c26927-b702-46a7-b083-d8bc42c1dbe2",
                "title": "S250814s - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814s/view/"
                    },
                    "event": {
                        "far": 5.974929236686734e-06,
                        "time": "2025-08-14T02:37:11.224Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 6740.367264690883,
                        "area_90": 22193.44186031889,
                        "duration": 0.1875,
                        "pipeline": "MLy",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "4b27b8be2998a5465e934003e9ecdfae",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 136.0
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-14T02:42:33Z",
                    "superevent_id": "S250814s",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-14T03:15:13.705587Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-14T03:15:13.705604Z",
                "modified": "2025-08-14T03:15:13.709828Z"
            }
        },
        {
            "id": 9771,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5348434,
                "topic": "igwn.gwalert",
                "uuid": "4cd0657c-162e-474c-b92a-47d8770cd488",
                "title": "S250814s - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814s/view/"
                    },
                    "event": {
                        "far": 5.974929236686734e-06,
                        "time": "2025-08-14T02:37:11.224Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 6740.367264690883,
                        "area_90": 22193.44186031889,
                        "duration": 0.1875,
                        "pipeline": "MLy",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "4b27b8be2998a5465e934003e9ecdfae",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 136.0
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-14T02:37:59Z",
                    "superevent_id": "S250814s",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-14T03:13:08.442812Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-14T03:13:08.442835Z",
                "modified": "2025-08-14T03:13:08.449255Z"
            }
        },
        {
            "id": 9770,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5342808,
                "topic": "igwn.gwalert",
                "uuid": "13c39afc-6fb3-47d7-b659-17c5334054c6",
                "title": "S250814b - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814b/view/"
                    },
                    "event": {
                        "far": 4.787119383898693e-06,
                        "time": "2025-08-14T00:35:14.219Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 6972.851604414375,
                        "area_90": 22550.141659533634,
                        "duration": 0.0625,
                        "pipeline": "MLy",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "ab4a41198e4ecb307e2f011d739d380f",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 72.0
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-14T00:40:42Z",
                    "superevent_id": "S250814b",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-14T00:40:43.427978Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-14T00:40:43.427995Z",
                "modified": "2025-08-14T00:40:43.431075Z"
            }
        },
        {
            "id": 9769,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5341703,
                "topic": "igwn.gwalert",
                "uuid": "af96e1f8-1113-4ee3-8fac-20d2fd71cab6",
                "title": "S250814b - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "gracedb": "https://gracedb.ligo.org/superevents/S250814b/view/"
                    },
                    "event": {
                        "far": 4.787119383898693e-06,
                        "time": "2025-08-14T00:35:14.219Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 6972.851604414375,
                        "area_90": 22550.141659533634,
                        "duration": 0.0625,
                        "pipeline": "MLy",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "ab4a41198e4ecb307e2f011d739d380f",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 72.0
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-14T00:36:08Z",
                    "superevent_id": "S250814b",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-14T00:36:09.599356Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-14T00:36:09.599371Z",
                "modified": "2025-08-14T00:36:09.603430Z"
            }
        },
        {
            "id": 9768,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5332314,
                "topic": "igwn.gwalert",
                "uuid": "6cf4d4e9-c15b-4065-87bd-25bb3bc814dd",
                "title": "S250813cp - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250813cp/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250813cp/view/"
                    },
                    "event": {
                        "far": 1.611742350908939e-05,
                        "time": "2025-08-13T22:30:43.021Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 214.64934976275595,
                        "area_90": 842.0213495581032,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "7fbd92e0f4d824d9d10014d78aa7ff54",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.0019266790628542658,
                            "NSBH": 0.00026924259561133894,
                            "Terrestrial": 0.9978040783415344
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-13T22:35:49Z",
                    "superevent_id": "S250813cp",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-13T23:40:17.623833Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-13T23:40:17.623850Z",
                "modified": "2025-08-13T23:40:17.627099Z"
            }
        },
        {
            "id": 9767,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5332221,
                "topic": "igwn.gwalert",
                "uuid": "6c6aefab-47b6-4338-80f7-571eca5f72af",
                "title": "S250813cp - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250813cp/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250813cp/view/"
                    },
                    "event": {
                        "far": 1.611742350908939e-05,
                        "time": "2025-08-13T22:30:43.022Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 239.88061497191666,
                        "area_90": 915.4595435140805,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 9.900990099009901e-06,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "3ecd3a4ab65a8344b0b7749298493e35",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.0019306637316441355,
                            "NSBH": 0.000265257926821456,
                            "Terrestrial": 0.9978040783415344
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-13T22:31:13Z",
                    "superevent_id": "S250813cp",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-13T23:40:16.129031Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-13T23:40:16.129049Z",
                "modified": "2025-08-13T23:40:16.132694Z"
            }
        },
        {
            "id": 9766,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5331858,
                "topic": "igwn.gwalert",
                "uuid": "046a9a70-4ce8-48ff-b080-6f0588e934be",
                "title": "S250813cq - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250813cq/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250813cq/view/"
                    },
                    "event": {
                        "far": 7.389470857125778e-06,
                        "time": "2025-08-13T22:31:13.002Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 497.4913081989192,
                        "area_90": 2466.6840232756194,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.012110860154338415,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "94fb1613f034f3f787ca35ca74f8b2bc",
                        "classification": {
                            "BBH": 0.17914346445950258,
                            "BNS": 7.418306663575637e-14,
                            "NSBH": 5.1358929219544045e-12,
                            "Terrestrial": 0.8208565355352874
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-13T22:36:14Z",
                    "superevent_id": "S250813cq",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-13T23:40:12.697664Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-13T23:40:12.697691Z",
                "modified": "2025-08-13T23:40:12.700995Z"
            }
        },
        {
            "id": 9765,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5331857,
                "topic": "igwn.gwalert",
                "uuid": "81f0c354-e1f2-4908-aa52-4a34300fc2b6",
                "title": "S250813cq - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250813cq/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250813cq/view/"
                    },
                    "event": {
                        "far": 7.389470857125778e-06,
                        "time": "2025-08-13T22:31:13.006Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 707.5245429130139,
                        "area_90": 2871.2235602674023,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.012110860154338415,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "f6bc45bc4395da7503a3ff4c168ce027",
                        "classification": {
                            "BBH": 0.17914346445950258,
                            "BNS": 7.418306663575637e-14,
                            "NSBH": 5.1358929219544045e-12,
                            "Terrestrial": 0.8208565355352874
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-13T22:31:37Z",
                    "superevent_id": "S250813cq",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-13T23:40:12.649314Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-13T23:40:12.649343Z",
                "modified": "2025-08-13T23:40:12.652589Z"
            }
        },
        {
            "id": 9764,
            "sequence_number": 4,
            "sequence_type": "UPDATE",
            "message": {
                "id": 5324400,
                "topic": "igwn.gwalert",
                "uuid": "d9d69ff9-74c7-495c-b883-ebe60f921f82",
                "title": "S250813k - UPDATE",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250813k/files/bayestar.multiorder.fits,2",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250813k/view/"
                    },
                    "event": {
                        "far": 1.260539034264596e-10,
                        "time": "2025-08-13T02:12:00.444Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 3.6137164860703463,
                        "area_90": 11.98616237067198,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": true,
                        "skymap_hash": "4c0db0e2d1e3aca1078efceb2f1b587e",
                        "classification": {
                            "BBH": 0.9970893220047151,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.0029106779952848827
                        },
                        "skymap_version": 2,
                        "central_frequency": null
                    },
                    "alert_type": "UPDATE",
                    "sequence_num": 4,
                    "time_created": "2025-08-13T21:52:29Z",
                    "superevent_id": "S250813k",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-13T23:39:17.521060Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-13T23:39:17.521079Z",
                "modified": "2025-08-13T23:39:17.524857Z"
            }
        },
        {
            "id": 9763,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5324399,
                "topic": "igwn.gwalert",
                "uuid": "7089f650-8ea5-4ec7-a7ac-0975be1d226e",
                "title": "S250813cm - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250813cm/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250813cm/view/"
                    },
                    "event": {
                        "far": 1.95392e-06,
                        "time": "2025-08-13T22:21:38.823Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 1514.9250296061564,
                        "area_90": 6282.952228050796,
                        "duration": 0.074958,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "336db33833538e0a13e6a365b2bf95b3",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 760.862854
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-13T22:28:26Z",
                    "superevent_id": "S250813cm",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-13T23:39:17.477464Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-13T23:39:17.477488Z",
                "modified": "2025-08-13T23:39:17.493945Z"
            }
        },
        {
            "id": 9762,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5324398,
                "topic": "igwn.gwalert",
                "uuid": "8ab45f51-f82f-4a25-bfdf-0e1bf4894375",
                "title": "S250813ck - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250813ck/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250813ck/view/"
                    },
                    "event": {
                        "far": 1.621036031903605e-05,
                        "time": "2025-08-13T22:10:46.073Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 941.4776465156267,
                        "area_90": 3378.996215620158,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.015682288725766987,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "709bf67330ac3342d16c064f158bd4e8",
                        "classification": {
                            "BBH": 0.08192923966035988,
                            "BNS": 3.1244119132904208e-15,
                            "NSBH": 2.171061557044043e-13,
                            "Terrestrial": 0.9180707603394199
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-13T22:11:11Z",
                    "superevent_id": "S250813ck",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-13T23:39:17.435024Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-13T23:39:17.435041Z",
                "modified": "2025-08-13T23:39:17.438134Z"
            }
        },
        {
            "id": 9761,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5315698,
                "topic": "igwn.gwalert",
                "uuid": "4a3529cf-b9c0-4222-a549-ce33befab31f",
                "title": "S250813cl - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "gracedb": "https://gracedb.ligo.org/superevents/S250813cl/view/"
                    },
                    "event": {
                        "far": 9.478049612809491e-06,
                        "time": "2025-08-13T22:17:47.799Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 6623.70544800653,
                        "area_90": 21994.529266403842,
                        "duration": 0.09375,
                        "pipeline": "MLy",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "184ce74e72b051d4db3a3cad57db2978",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 208.0
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-13T22:18:36Z",
                    "superevent_id": "S250813cl",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-13T23:37:17.696441Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-13T23:37:17.696459Z",
                "modified": "2025-08-13T23:37:17.700031Z"
            }
        },
        {
            "id": 9760,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5301893,
                "topic": "igwn.gwalert",
                "uuid": "bf5de1c6-8ad4-48d3-ab10-bfc8fc4f2e5d",
                "title": "S250813cl - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "gracedb": "https://gracedb.ligo.org/superevents/S250813cl/view/"
                    },
                    "event": {
                        "far": 9.478049612809491e-06,
                        "time": "2025-08-13T22:17:47.799Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 6623.70544800653,
                        "area_90": 21994.529266403842,
                        "duration": 0.09375,
                        "pipeline": "MLy",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "184ce74e72b051d4db3a3cad57db2978",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 208.0
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-13T22:23:11Z",
                    "superevent_id": "S250813cl",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-13T23:35:23.661114Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-13T23:35:23.661132Z",
                "modified": "2025-08-13T23:35:23.670036Z"
            }
        },
        {
            "id": 9759,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5301892,
                "topic": "igwn.gwalert",
                "uuid": "d22a4a9c-7765-4772-982b-1f1890505e87",
                "title": "S250813ck - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250813ck/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250813ck/view/"
                    },
                    "event": {
                        "far": 1.175678604297796e-05,
                        "time": "2025-08-13T22:10:46.072Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 908.7451943523912,
                        "area_90": 3243.0306450959492,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.017220750264228524,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "55aa97efbfdfdafd29011a3fbde538f2",
                        "classification": {
                            "BBH": 0.12547903432760818,
                            "BNS": 5.134248180981513e-15,
                            "NSBH": 3.688026469033081e-13,
                            "Terrestrial": 0.8745209656720179
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-13T22:15:48Z",
                    "superevent_id": "S250813ck",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-13T23:35:23.624836Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-13T23:35:23.624855Z",
                "modified": "2025-08-13T23:35:23.627889Z"
            }
        },
        {
            "id": 9758,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5301891,
                "topic": "igwn.gwalert",
                "uuid": "65bf2253-9f83-4b3c-9043-8b2750074883",
                "title": "S250813cm - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250813cm/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250813cm/view/"
                    },
                    "event": {
                        "far": 1.95392e-06,
                        "time": "2025-08-13T22:21:38.823Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 1514.9250296061564,
                        "area_90": 6282.952228050796,
                        "duration": 0.074958,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "336db33833538e0a13e6a365b2bf95b3",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 760.862854
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-08-13T22:23:52Z",
                    "superevent_id": "S250813cm",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-13T23:35:23.554859Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-13T23:35:23.554881Z",
                "modified": "2025-08-13T23:35:23.561607Z"
            }
        },
        {
            "id": 9757,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 5287941,
                "topic": "igwn.gwalert",
                "uuid": "f5529db8-76ae-4995-8634-062785a559e3",
                "title": "S250813bv - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250813bv/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250813bv/view/"
                    },
                    "event": {
                        "far": 6.08811377041842e-06,
                        "time": "2025-08-13T20:23:19.196Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 796.4896693053975,
                        "area_90": 3914.465561264882,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.015682288725766987,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "54448be2f1d2c5b9186ff839ee9bb07a",
                        "classification": {
                            "BBH": 0.22481129380334378,
                            "BNS": 2.5254521056687153e-14,
                            "NSBH": 1.919190965954253e-12,
                            "Terrestrial": 0.7751887061947118
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-08-13T20:28:20Z",
                    "superevent_id": "S250813bv",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-08-13T20:28:21.186443Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-08-13T20:28:21.186462Z",
                "modified": "2025-08-13T20:28:21.192632Z"
            }
        }
    ]
}