GET /api/v0/nonlocalizedeventsequence/?format=api&offset=3000&ordering=message
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 11124,
    "next": "https://hermes.lco.global/api/v0/nonlocalizedeventsequence/?format=api&limit=100&offset=3100&ordering=message",
    "previous": "https://hermes.lco.global/api/v0/nonlocalizedeventsequence/?format=api&limit=100&offset=2900&ordering=message",
    "results": [
        {
            "id": 8124,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182876,
                "topic": "igwn.gwalert",
                "uuid": "571876c7-0273-47ad-937c-386e4415c100",
                "title": "S250225ac - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250225ac/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250225ac/view/"
                    },
                    "event": {
                        "far": 1.392871604413598e-05,
                        "time": "2025-02-25T03:50:05.676Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 373.90531894157493,
                        "area_90": 2406.2548808204156,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.027430592396109635,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "2c939a4142a4f0d71646b672a15f957b",
                        "classification": {
                            "BBH": 0.08009580699202408,
                            "BNS": 4.539905178993903e-17,
                            "NSBH": 3.2718823867483925e-15,
                            "Terrestrial": 0.9199041930079725
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-25T03:50:30Z",
                    "superevent_id": "S250225ac",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-25T03:50:30.847538Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-25T03:50:30.847638Z",
                "modified": "2025-02-25T03:50:30.856634Z"
            }
        },
        {
            "id": 8123,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182875,
                "topic": "igwn.gwalert",
                "uuid": "05857445-61a4-4fbf-b672-b5e513913ade",
                "title": "S250225w - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250225w/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250225w/view/"
                    },
                    "event": {
                        "far": 1.371435096866606e-05,
                        "time": "2025-02-25T03:17:25.762Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 696.8235489365715,
                        "area_90": 2357.575849398168,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "3df708e38444fa5908b28147a14bf748",
                        "classification": {
                            "BBH": 0.08519188830699845,
                            "BNS": 1.0356778163132551e-15,
                            "NSBH": 7.510089411051123e-14,
                            "Terrestrial": 0.9148081116929254
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-25T03:22:25Z",
                    "superevent_id": "S250225w",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-25T03:22:25.748273Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-25T03:22:25.748327Z",
                "modified": "2025-02-25T03:22:25.765564Z"
            }
        },
        {
            "id": 8122,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182874,
                "topic": "igwn.gwalert",
                "uuid": "324e62a3-2935-44a4-b8d5-0a26c6eb5ebf",
                "title": "S250225w - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250225w/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250225w/view/"
                    },
                    "event": {
                        "far": 2.263558492509115e-05,
                        "time": "2025-02-25T03:17:25.761Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 712.3504813729779,
                        "area_90": 2556.4884433132147,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "ec08f320ecb0c4d0d7e3e8d0e3248f3c",
                        "classification": {
                            "BBH": 0.04619247535452359,
                            "BNS": 9.346415053534032e-16,
                            "NSBH": 6.751519915968973e-14,
                            "Terrestrial": 0.953807524645408
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-25T03:17:49Z",
                    "superevent_id": "S250225w",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-25T03:17:50.546776Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-25T03:17:50.546828Z",
                "modified": "2025-02-25T03:17:50.558952Z"
            }
        },
        {
            "id": 8121,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182845,
                "topic": "igwn.gwalert",
                "uuid": "41cfcf59-207c-4d88-89f1-3b6c73913763",
                "title": "S250225n - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250225n/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250225n/view/"
                    },
                    "event": {
                        "far": 2.5429e-06,
                        "time": "2025-02-25T02:24:56.246Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 1556.0504182215038,
                        "area_90": 5129.762759530652,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "fbdf4f28287ff594611b13ca57284b78",
                        "classification": {
                            "BBH": 0.015027999494007682,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9849720005059923
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-25T02:30:50Z",
                    "superevent_id": "S250225n",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-25T02:30:51.611350Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-25T02:30:51.611404Z",
                "modified": "2025-02-25T02:30:51.625731Z"
            }
        },
        {
            "id": 8120,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182844,
                "topic": "igwn.gwalert",
                "uuid": "73381a8e-1ed7-4a77-a18d-627d422258a8",
                "title": "S250225n - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250225n/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250225n/view/"
                    },
                    "event": {
                        "far": 2.5429e-06,
                        "time": "2025-02-25T02:24:56.246Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 1556.0504182215038,
                        "area_90": 5129.762759530652,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "fbdf4f28287ff594611b13ca57284b78",
                        "classification": {
                            "BBH": 0.015027999494007682,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9849720005059923
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-25T02:26:15Z",
                    "superevent_id": "S250225n",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-25T02:26:17.803050Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-25T02:26:17.803102Z",
                "modified": "2025-02-25T02:26:17.824429Z"
            }
        },
        {
            "id": 8119,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182843,
                "topic": "igwn.gwalert",
                "uuid": "f099388f-c6d0-4d66-8024-80497d47c5d4",
                "title": "S250225f - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250225f/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250225f/view/"
                    },
                    "event": {
                        "far": 4.792180104730722e-06,
                        "time": "2025-02-25T02:01:50.917Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 492.140811210698,
                        "area_90": 1670.1943539702224,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "917081db22b166e4742f95be73fd8a86",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.009617752345379649,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9903822476546204
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-25T02:06:52Z",
                    "superevent_id": "S250225f",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-25T02:06:53.376585Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-25T02:06:53.376633Z",
                "modified": "2025-02-25T02:06:53.384776Z"
            }
        },
        {
            "id": 8118,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182842,
                "topic": "igwn.gwalert",
                "uuid": "47d9ecf3-5a7c-46f2-a66e-6817ab3ae0b4",
                "title": "S250225f - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250225f/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250225f/view/"
                    },
                    "event": {
                        "far": 4.792180104730722e-06,
                        "time": "2025-02-25T02:01:50.917Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 596.3181349225341,
                        "area_90": 2016.822629442434,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "eb62c2c8c90faf6ea1c0186af5731e36",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.009617752345379635,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9903822476546204
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-25T02:02:17Z",
                    "superevent_id": "S250225f",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-25T02:02:18.256443Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-25T02:02:18.256477Z",
                "modified": "2025-02-25T02:02:18.269299Z"
            }
        },
        {
            "id": 8117,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182794,
                "topic": "igwn.gwalert",
                "uuid": "0d354954-e7a1-4e1f-9120-19cf00d4e865",
                "title": "S250225b - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250225b/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250225b/view/"
                    },
                    "event": {
                        "far": 1.319282843294564e-06,
                        "time": "2025-02-25T01:26:15.332Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 419.4894550471064,
                        "area_90": 1600.7428048289983,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.9160330372791433,
                            "HasMassGap": 0.14821294512161387,
                            "HasRemnant": 0.06743992374125633
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "b74b8070e0f778bbd49bec2236a47c95",
                        "classification": {
                            "BBH": 0.006545802444958888,
                            "BNS": 0.0,
                            "NSBH": 0.02229777359841158,
                            "Terrestrial": 0.9711564239566295
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-25T01:31:15Z",
                    "superevent_id": "S250225b",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-25T01:31:17.475428Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-25T01:31:17.475460Z",
                "modified": "2025-02-25T01:31:17.487756Z"
            }
        },
        {
            "id": 8116,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182793,
                "topic": "igwn.gwalert",
                "uuid": "464106cf-e4a9-4324-99a3-89c72473fdc2",
                "title": "S250225b - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250225b/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250225b/view/"
                    },
                    "event": {
                        "far": 1.319282843294564e-06,
                        "time": "2025-02-25T01:26:15.332Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 419.4894550471064,
                        "area_90": 1600.7428048289983,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 0.9160330372791433,
                            "HasMassGap": 0.14821294512161387,
                            "HasRemnant": 0.06743992374125633
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "b74b8070e0f778bbd49bec2236a47c95",
                        "classification": {
                            "BBH": 0.006545802444958888,
                            "BNS": 0.0,
                            "NSBH": 0.02229777359841158,
                            "Terrestrial": 0.9711564239566295
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-25T01:26:39Z",
                    "superevent_id": "S250225b",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-25T01:26:40.949578Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-25T01:26:40.949630Z",
                "modified": "2025-02-25T01:26:40.967758Z"
            }
        },
        {
            "id": 8115,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182732,
                "topic": "igwn.gwalert",
                "uuid": "6f0662ef-a93c-4ad4-be40-b0bae1b47d00",
                "title": "S250224au - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250224au/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250224au/view/"
                    },
                    "event": {
                        "far": 1.074130141911709e-05,
                        "time": "2025-02-24T20:12:04.886Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 3681.98122154139,
                        "area_90": 13766.09436875356,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "1dacf3a1ce2dd4fdd279c6008e318e11",
                        "classification": {
                            "BBH": 0.10806149888894898,
                            "BNS": 2.5077288808570642e-17,
                            "NSBH": 1.849334924260742e-15,
                            "Terrestrial": 0.8919385011110491
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-24T20:17:05Z",
                    "superevent_id": "S250224au",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-24T20:17:06.157489Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-24T20:17:06.157540Z",
                "modified": "2025-02-24T20:17:06.167337Z"
            }
        },
        {
            "id": 8114,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182731,
                "topic": "igwn.gwalert",
                "uuid": "6ea4ef9a-8829-40fc-84d4-0c8b41d0f156",
                "title": "S250224au - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250224au/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250224au/view/"
                    },
                    "event": {
                        "far": 1.759118778903064e-05,
                        "time": "2025-02-24T20:12:04.887Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 3414.246548719027,
                        "area_90": 14299.885127107862,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "30a6f4c46b95afd9d4eecc8f54040690",
                        "classification": {
                            "BBH": 0.06103882528619789,
                            "BNS": 5.372776233089169e-18,
                            "NSBH": 1.247214736160727e-11,
                            "Terrestrial": 0.93896117470133
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-24T20:12:29Z",
                    "superevent_id": "S250224au",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-24T20:12:29.870704Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-24T20:12:29.870739Z",
                "modified": "2025-02-24T20:12:29.884545Z"
            }
        },
        {
            "id": 8113,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182611,
                "topic": "igwn.gwalert",
                "uuid": "d8889dfc-089f-4e72-9a53-9e2cd8a882d8",
                "title": "S250224ao - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250224ao/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250224ao/view/"
                    },
                    "event": {
                        "far": 6.337850209092721e-06,
                        "time": "2025-02-24T12:32:31.460Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 2575.7921971530714,
                        "area_90": 21425.488174950668,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.05584942834942835,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "bbf5763ed9eeae8fdb08f6e754adc86b",
                        "classification": {
                            "BBH": 0.08561737752805114,
                            "BNS": 0.0,
                            "NSBH": 0.005621808052163443,
                            "Terrestrial": 0.9087608144197854
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-24T12:37:31Z",
                    "superevent_id": "S250224ao",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-24T12:37:32.933373Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-24T12:37:32.933402Z",
                "modified": "2025-02-24T12:37:32.941637Z"
            }
        },
        {
            "id": 8112,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182610,
                "topic": "igwn.gwalert",
                "uuid": "64ee9faa-70e0-4b29-aaba-b2e3d2c45a9b",
                "title": "S250224ao - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250224ao/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250224ao/view/"
                    },
                    "event": {
                        "far": 6.337850209092721e-06,
                        "time": "2025-02-24T12:32:31.460Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 2575.7921971530714,
                        "area_90": 21425.488174950668,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.05584942834942835,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "bbf5763ed9eeae8fdb08f6e754adc86b",
                        "classification": {
                            "BBH": 0.08561737752805114,
                            "BNS": 0.0,
                            "NSBH": 0.005621808052163443,
                            "Terrestrial": 0.9087608144197854
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-24T12:32:56Z",
                    "superevent_id": "S250224ao",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-24T12:32:57.622051Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-24T12:32:57.622080Z",
                "modified": "2025-02-24T12:32:57.633223Z"
            }
        },
        {
            "id": 8111,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182462,
                "topic": "igwn.gwalert",
                "uuid": "b4f2200a-d1b1-4458-b92f-818fbfb7183a",
                "title": "S250224ak - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250224ak/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250224ak/view/"
                    },
                    "event": {
                        "far": 1.119600492135016e-05,
                        "time": "2025-02-24T05:49:29.437Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 4838.527864642378,
                        "area_90": 13949.060383409596,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 2.3391812865497078e-05,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "e938d1987eeeba223901537f5c3ea861",
                        "classification": {
                            "BBH": 0.10094097532559784,
                            "BNS": 2.078076361470331e-20,
                            "NSBH": 1.4535323427092024e-18,
                            "Terrestrial": 0.8990590246744021
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-24T05:54:38Z",
                    "superevent_id": "S250224ak",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-24T05:54:38.870724Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-24T05:54:38.870768Z",
                "modified": "2025-02-24T05:54:38.885944Z"
            }
        },
        {
            "id": 8110,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182456,
                "topic": "igwn.gwalert",
                "uuid": "8b149870-2f3d-4d1d-9981-f6ac9c459016",
                "title": "S250224ak - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250224ak/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250224ak/view/"
                    },
                    "event": {
                        "far": 1.119600492135016e-05,
                        "time": "2025-02-24T05:49:29.439Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 4551.489437980159,
                        "area_90": 13999.418002122266,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0025,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "2255201794acc10af136d8477fa9d2ff",
                        "classification": {
                            "BBH": 0.10094097532559784,
                            "BNS": 2.078076361470331e-20,
                            "NSBH": 1.4535323427092024e-18,
                            "Terrestrial": 0.8990590246744021
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-24T05:50:02Z",
                    "superevent_id": "S250224ak",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-24T05:50:04.035735Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-24T05:50:04.035766Z",
                "modified": "2025-02-24T05:50:04.050702Z"
            }
        },
        {
            "id": 8109,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182447,
                "topic": "igwn.gwalert",
                "uuid": "793d2612-97d0-45e7-bd45-2d60f062eb90",
                "title": "S250224aj - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250224aj/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250224aj/view/"
                    },
                    "event": {
                        "far": 1.992453e-05,
                        "time": "2025-02-24T05:07:01.674Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 5337.068289897811,
                        "area_90": 15839.149672425143,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.21571552386757362,
                            "HasRemnant": 0.9122565469148756
                        },
                        "instruments": [
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "5a303f0ac465633bf2ed550217a6b7ad",
                        "classification": {
                            "BBH": 0.000126889,
                            "BNS": 0.0,
                            "NSBH": 0.000507558,
                            "Terrestrial": 0.999365553
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-24T05:12:07Z",
                    "superevent_id": "S250224aj",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-24T05:12:08.358794Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-24T05:12:08.358825Z",
                "modified": "2025-02-24T05:12:08.372325Z"
            }
        },
        {
            "id": 8108,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182446,
                "topic": "igwn.gwalert",
                "uuid": "f666cc03-40b5-4192-b2d6-eb900459f836",
                "title": "S250224aj - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250224aj/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250224aj/view/"
                    },
                    "event": {
                        "far": 1.992453e-05,
                        "time": "2025-02-24T05:07:01.674Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 5337.068289897811,
                        "area_90": 15839.149672425143,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.21571552386757362,
                            "HasRemnant": 0.9122565469148756
                        },
                        "instruments": [
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "5a303f0ac465633bf2ed550217a6b7ad",
                        "classification": {
                            "BBH": 0.000126889,
                            "BNS": 0.0,
                            "NSBH": 0.000507558,
                            "Terrestrial": 0.999365553
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-24T05:07:32Z",
                    "superevent_id": "S250224aj",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-24T05:07:33.201775Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-24T05:07:33.201821Z",
                "modified": "2025-02-24T05:07:33.211256Z"
            }
        },
        {
            "id": 8107,
            "sequence_number": 6,
            "sequence_type": "INITIAL",
            "message": {
                "id": 182411,
                "topic": "igwn.gwalert",
                "uuid": "86406f56-d6ed-4252-9c9e-1148f25e40ab",
                "title": "S250223dk - INITIAL",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223dk/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223dk/view/",
                        "combined_skymap": "https://gracedb.ligo.org/api/superevents/S250223dk/files/combined-ext.multiorder.fits,2"
                    },
                    "event": {
                        "far": 1.443192990183262e-05,
                        "time": "2025-02-23T12:01:15.360Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 726.6184733415679,
                        "area_90": 3202.7445501258135,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": true,
                        "skymap_hash": "9c1588dc600f3ff7af7dc00a0f0d7cd1",
                        "classification": {
                            "BBH": 0.07988696763057104,
                            "BNS": 1.8525508826436897e-16,
                            "NSBH": 1.3367669431353486e-14,
                            "Terrestrial": 0.9201130323694154
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "INITIAL",
                    "sequence_num": 6,
                    "time_created": "2025-02-24T03:05:57Z",
                    "superevent_id": "S250223dk",
                    "external_coinc": {
                        "ivorn": "ivo://lvk.internal/swift#targeted_subthreshold-2025-02-23T12:01:13.313Z",
                        "search": "SubGRBTargeted",
                        "observatory": "Swift",
                        "gcn_notice_id": 762004910,
                        "time_difference": 2.05,
                        "combined_skymap_hash": "54cb9c3477570c1e04947d486c5d84cb",
                        "time_coincidence_far": 1.9333346536574795e-07,
                        "combined_skymap_version": 2,
                        "time_sky_position_coincidence_far": 5.123426111237464e-09
                    }
                },
                "message_text": "",
                "published": "2025-02-24T03:05:58.466988Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-24T03:05:58.467019Z",
                "modified": "2025-02-24T03:05:58.475540Z"
            }
        },
        {
            "id": 8106,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182410,
                "topic": "igwn.gwalert",
                "uuid": "ca7347e0-6843-4786-af51-122f61d0727b",
                "title": "S250224ae - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250224ae/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250224ae/view/"
                    },
                    "event": {
                        "far": 1.422051533228906e-05,
                        "time": "2025-02-24T02:19:52.399Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 648.7739877482321,
                        "area_90": 3675.2668723796996,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.09994114657272553,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "2eb5190c8460149bc337ec7451ab4519",
                        "classification": {
                            "BBH": 0.07818549931927202,
                            "BNS": 6.628075755212924e-18,
                            "NSBH": 4.0944142319427184e-16,
                            "Terrestrial": 0.9218145006807276
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-24T02:25:16Z",
                    "superevent_id": "S250224ae",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-24T02:25:17.716747Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-24T02:25:17.716793Z",
                "modified": "2025-02-24T02:25:17.721395Z"
            }
        },
        {
            "id": 8105,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182408,
                "topic": "igwn.gwalert",
                "uuid": "7406f169-b4f6-4a5b-9140-4fd4a553b3c4",
                "title": "S250224ae - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250224ae/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250224ae/view/"
                    },
                    "event": {
                        "far": 1.422051533228906e-05,
                        "time": "2025-02-24T02:19:52.399Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 648.7739877482321,
                        "area_90": 3675.2668723796996,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.09994114657272553,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "2eb5190c8460149bc337ec7451ab4519",
                        "classification": {
                            "BBH": 0.07818549931927202,
                            "BNS": 6.628075755212924e-18,
                            "NSBH": 4.0944142319427184e-16,
                            "Terrestrial": 0.9218145006807276
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-24T02:20:40Z",
                    "superevent_id": "S250224ae",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-24T02:20:41.592482Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-24T02:20:41.592550Z",
                "modified": "2025-02-24T02:20:41.602141Z"
            }
        },
        {
            "id": 8104,
            "sequence_number": 5,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182397,
                "topic": "igwn.gwalert",
                "uuid": "63ea8771-fa59-4ab4-b6c7-6e3b093fba7e",
                "title": "S250223dk - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223dk/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223dk/view/",
                        "combined_skymap": "https://gracedb.ligo.org/api/superevents/S250223dk/files/combined-ext.multiorder.fits,2"
                    },
                    "event": {
                        "far": 1.443192990183262e-05,
                        "time": "2025-02-23T12:01:15.360Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 726.6184733415679,
                        "area_90": 3202.7445501258135,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": true,
                        "skymap_hash": "9c1588dc600f3ff7af7dc00a0f0d7cd1",
                        "classification": {
                            "BBH": 0.07988696763057104,
                            "BNS": 1.8525508826436897e-16,
                            "NSBH": 1.3367669431353486e-14,
                            "Terrestrial": 0.9201130323694154
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 5,
                    "time_created": "2025-02-24T01:11:00Z",
                    "superevent_id": "S250223dk",
                    "external_coinc": {
                        "ivorn": "ivo://lvk.internal/swift#targeted_subthreshold-2025-02-23T12:01:13.313Z",
                        "search": "SubGRBTargeted",
                        "observatory": "Swift",
                        "gcn_notice_id": 762004910,
                        "time_difference": 2.05,
                        "combined_skymap_hash": "54cb9c3477570c1e04947d486c5d84cb",
                        "time_coincidence_far": 1.9333346536574795e-07,
                        "combined_skymap_version": 2,
                        "time_sky_position_coincidence_far": 5.123426111237464e-09
                    }
                },
                "message_text": "",
                "published": "2025-02-24T01:11:01.902554Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-24T01:11:01.905081Z",
                "modified": "2025-02-24T01:11:01.910954Z"
            }
        },
        {
            "id": 8103,
            "sequence_number": 4,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182383,
                "topic": "igwn.gwalert",
                "uuid": "8b20162f-74ca-4759-a47c-9f4f2623e3a7",
                "title": "S250223dk - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223dk/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223dk/view/",
                        "combined_skymap": "https://gracedb.ligo.org/api/superevents/S250223dk/files/combined-ext.multiorder.fits,2"
                    },
                    "event": {
                        "far": 1.443192990183262e-05,
                        "time": "2025-02-23T12:01:15.360Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 726.6184733415679,
                        "area_90": 3202.7445501258135,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": true,
                        "skymap_hash": "9c1588dc600f3ff7af7dc00a0f0d7cd1",
                        "classification": {
                            "BBH": 0.07988696763057104,
                            "BNS": 1.8525508826436897e-16,
                            "NSBH": 1.3367669431353486e-14,
                            "Terrestrial": 0.9201130323694154
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 4,
                    "time_created": "2025-02-24T00:28:48Z",
                    "superevent_id": "S250223dk",
                    "external_coinc": {
                        "ivorn": "ivo://lvk.internal/swift#targeted_subthreshold-2025-02-23T12:01:13.313Z",
                        "search": "SubGRBTargeted",
                        "observatory": "Swift",
                        "gcn_notice_id": 762004910,
                        "time_difference": 2.05,
                        "combined_skymap_hash": "54cb9c3477570c1e04947d486c5d84cb",
                        "time_coincidence_far": 1.9333346536574795e-07,
                        "combined_skymap_version": 2,
                        "time_sky_position_coincidence_far": -1.3348699856778114e-05
                    }
                },
                "message_text": "",
                "published": "2025-02-24T00:28:50.095021Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-24T00:28:50.095067Z",
                "modified": "2025-02-24T00:28:50.105241Z"
            }
        },
        {
            "id": 8102,
            "sequence_number": 3,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182373,
                "topic": "igwn.gwalert",
                "uuid": "203d3063-215b-4e65-9b8a-c49b605a96bb",
                "title": "S250223dk - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223dk/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223dk/view/",
                        "combined_skymap": "https://gracedb.ligo.org/api/superevents/S250223dk/files/combined-ext.multiorder.fits,2"
                    },
                    "event": {
                        "far": 1.443192990183262e-05,
                        "time": "2025-02-23T12:01:15.360Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 726.6184733415679,
                        "area_90": 3202.7445501258135,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": true,
                        "skymap_hash": "9c1588dc600f3ff7af7dc00a0f0d7cd1",
                        "classification": {
                            "BBH": 0.07988696763057104,
                            "BNS": 1.8525508826436897e-16,
                            "NSBH": 1.3367669431353486e-14,
                            "Terrestrial": 0.9201130323694154
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 3,
                    "time_created": "2025-02-24T00:24:06Z",
                    "superevent_id": "S250223dk",
                    "external_coinc": {
                        "ivorn": "ivo://lvk.internal/swift#targeted_subthreshold-2025-02-23T12:01:13.313Z",
                        "search": "SubGRBTargeted",
                        "observatory": "Swift",
                        "gcn_notice_id": 762004910,
                        "time_difference": 2.05,
                        "combined_skymap_hash": "54cb9c3477570c1e04947d486c5d84cb",
                        "time_coincidence_far": 1.9333346536574795e-07,
                        "combined_skymap_version": 2,
                        "time_sky_position_coincidence_far": -1.3348699856778114e-05
                    }
                },
                "message_text": "",
                "published": "2025-02-24T00:24:08.331468Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-24T00:24:08.331513Z",
                "modified": "2025-02-24T00:24:08.345489Z"
            }
        },
        {
            "id": 8101,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182360,
                "topic": "igwn.gwalert",
                "uuid": "d6ad4c4c-436e-463b-adde-905641e2b901",
                "title": "S250223gp - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223gp/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223gp/view/"
                    },
                    "event": {
                        "far": 2.17053e-05,
                        "time": "2025-02-23T23:17:24.435Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 579.1126151957052,
                        "area_90": 1978.2151217627202,
                        "duration": 0.013671,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "fad255b9c8583f07885c5a6febf03272",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 63.466576
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-23T23:24:11Z",
                    "superevent_id": "S250223gp",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T23:24:12.555080Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T23:24:12.555112Z",
                "modified": "2025-02-23T23:24:12.562727Z"
            }
        },
        {
            "id": 8100,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182359,
                "topic": "igwn.gwalert",
                "uuid": "00e336e7-b589-41eb-bdda-d05414bd10cc",
                "title": "S250223gp - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223gp/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223gp/view/"
                    },
                    "event": {
                        "far": 2.17053e-05,
                        "time": "2025-02-23T23:17:24.435Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 579.1126151957052,
                        "area_90": 1978.2151217627202,
                        "duration": 0.013671,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "fad255b9c8583f07885c5a6febf03272",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 63.466576
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-23T23:19:37Z",
                    "superevent_id": "S250223gp",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T23:19:38.752255Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T23:19:38.752284Z",
                "modified": "2025-02-23T23:19:38.760858Z"
            }
        },
        {
            "id": 8099,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182335,
                "topic": "igwn.gwalert",
                "uuid": "c2e40c79-f460-4128-aaab-4580d1dcc4b6",
                "title": "S250223gk - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223gk/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223gk/view/"
                    },
                    "event": {
                        "far": 2.21073e-05,
                        "time": "2025-02-23T23:01:24.766Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 1932.8932649213175,
                        "area_90": 7113.013643164641,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.03369230769230769,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "7ef5b37c1019f56cdf9479aa9b19e13d",
                        "classification": {
                            "BBH": 0.0010613846622025136,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9989386153377975
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-23T23:06:59Z",
                    "superevent_id": "S250223gk",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T23:07:00.787874Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T23:07:00.787922Z",
                "modified": "2025-02-23T23:07:00.812635Z"
            }
        },
        {
            "id": 8098,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182334,
                "topic": "igwn.gwalert",
                "uuid": "adfa9a6a-e273-433e-b317-e80a78a29645",
                "title": "S250223gk - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223gk/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223gk/view/"
                    },
                    "event": {
                        "far": 2.21073e-05,
                        "time": "2025-02-23T23:01:24.766Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 1932.8932649213175,
                        "area_90": 7113.013643164641,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.03369230769230769,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "7ef5b37c1019f56cdf9479aa9b19e13d",
                        "classification": {
                            "BBH": 0.0010613846622025136,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9989386153377975
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-23T23:02:24Z",
                    "superevent_id": "S250223gk",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T23:02:25.604585Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T23:02:25.604616Z",
                "modified": "2025-02-23T23:02:25.621613Z"
            }
        },
        {
            "id": 8097,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182253,
                "topic": "igwn.gwalert",
                "uuid": "15aa3ed7-6076-4ef1-9cee-1a7368cd5a3f",
                "title": "S250223fw - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223fw/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223fw/view/"
                    },
                    "event": {
                        "far": 6.458712981392147e-06,
                        "time": "2025-02-23T18:18:00.304Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 784.3199114498356,
                        "area_90": 3138.9582330897647,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "67f76e55258509c338c69da221deef6b",
                        "classification": {
                            "BBH": 0.1950923532216038,
                            "BNS": 3.2387094163657185e-14,
                            "NSBH": 2.265688818223484e-12,
                            "Terrestrial": 0.8049076467760982
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-23T18:23:00Z",
                    "superevent_id": "S250223fw",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T18:23:01.226508Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T18:23:01.226557Z",
                "modified": "2025-02-23T18:23:01.241493Z"
            }
        },
        {
            "id": 8096,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182252,
                "topic": "igwn.gwalert",
                "uuid": "6579c186-b2ba-4af7-a1eb-8721201333e3",
                "title": "S250223fw - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223fw/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223fw/view/"
                    },
                    "event": {
                        "far": 5.528537168494616e-06,
                        "time": "2025-02-23T18:18:00.304Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 775.9269749977238,
                        "area_90": 3112.9401300882187,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "ce8b4b289565137870a1b9b01e47e56b",
                        "classification": {
                            "BBH": 0.20389115854089385,
                            "BNS": 3.664263676255045e-14,
                            "NSBH": 2.5633407846004265e-12,
                            "Terrestrial": 0.7961088414565062
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-23T18:18:24Z",
                    "superevent_id": "S250223fw",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T18:18:25.663710Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T18:18:25.663741Z",
                "modified": "2025-02-23T18:18:25.675254Z"
            }
        },
        {
            "id": 8095,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182251,
                "topic": "igwn.gwalert",
                "uuid": "9a15cc17-1cb1-4cde-a19b-ff9da3f79c31",
                "title": "S250223ft - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223ft/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223ft/view/"
                    },
                    "event": {
                        "far": 7.13414e-06,
                        "time": "2025-02-23T18:05:12.738Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 331.5209898584109,
                        "area_90": 2501.0950627292777,
                        "duration": 0.01891,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "2cbc8f2e269f7ebec37f09f5aaf5bb54",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 694.393372
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-23T18:11:39Z",
                    "superevent_id": "S250223ft",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T18:11:40.169575Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T18:11:40.169609Z",
                "modified": "2025-02-23T18:11:40.178131Z"
            }
        },
        {
            "id": 8094,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182250,
                "topic": "igwn.gwalert",
                "uuid": "94646560-96f5-41ea-8500-daf3a8a8d4c5",
                "title": "S250223ft - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223ft/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223ft/view/"
                    },
                    "event": {
                        "far": 7.13414e-06,
                        "time": "2025-02-23T18:05:12.738Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 331.5209898584109,
                        "area_90": 2501.0950627292777,
                        "duration": 0.01891,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "2cbc8f2e269f7ebec37f09f5aaf5bb54",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 694.393372
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-23T18:07:04Z",
                    "superevent_id": "S250223ft",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T18:07:04.811070Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T18:07:04.811104Z",
                "modified": "2025-02-23T18:07:04.817614Z"
            }
        },
        {
            "id": 8093,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182249,
                "topic": "igwn.gwalert",
                "uuid": "843ed4ca-43fa-40d8-a30e-598a17db0abc",
                "title": "S250223fr - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223fr/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223fr/view/"
                    },
                    "event": {
                        "far": 1.940295830421589e-05,
                        "time": "2025-02-23T18:01:08.725Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 425.4169664164102,
                        "area_90": 1893.4464635963925,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "7a3fa97457a74172ac149a231e333db7",
                        "classification": {
                            "BBH": 0.056341278400483016,
                            "BNS": 4.57256522540189e-18,
                            "NSBH": 3.10316738379744e-16,
                            "Terrestrial": 0.9436587215995167
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-23T18:06:10Z",
                    "superevent_id": "S250223fr",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T18:06:11.468690Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T18:06:11.468751Z",
                "modified": "2025-02-23T18:06:11.482795Z"
            }
        },
        {
            "id": 8092,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182248,
                "topic": "igwn.gwalert",
                "uuid": "d99577ae-afdf-4f43-a564-816468dfc2fa",
                "title": "S250223fr - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223fr/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223fr/view/"
                    },
                    "event": {
                        "far": 1.335738539572233e-05,
                        "time": "2025-02-23T18:01:08.726Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 467.95866305805123,
                        "area_90": 2214.8959297122697,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "deb135035bc0cf88e6b1b51dc32d2d3b",
                        "classification": {
                            "BBH": 0.08390307979713602,
                            "BNS": 4.632150872083189e-18,
                            "NSBH": 3.1411526118234155e-16,
                            "Terrestrial": 0.9160969202028637
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-23T18:01:33Z",
                    "superevent_id": "S250223fr",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T18:01:34.033093Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T18:01:34.033147Z",
                "modified": "2025-02-23T18:01:34.045207Z"
            }
        },
        {
            "id": 8091,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182194,
                "topic": "igwn.gwalert",
                "uuid": "6bd23747-de34-4961-a799-6317c98e67bb",
                "title": "S250223ek - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223ek/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223ek/view/"
                    },
                    "event": {
                        "far": 5.815737e-06,
                        "time": "2025-02-23T15:03:50.495Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 579.5322620183108,
                        "area_90": 2854.4376873631786,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0956027861398696,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "c6acf1916bcf90893fae5bda6df616c9",
                        "classification": {
                            "BBH": 0.13702671,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.86297329
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-23T15:08:56Z",
                    "superevent_id": "S250223ek",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T15:08:56.876734Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T15:08:56.876766Z",
                "modified": "2025-02-23T15:08:56.884338Z"
            }
        },
        {
            "id": 8090,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182193,
                "topic": "igwn.gwalert",
                "uuid": "678febc3-53bf-4cd8-bdb5-c331443572da",
                "title": "S250223ek - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223ek/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223ek/view/"
                    },
                    "event": {
                        "far": 5.815737e-06,
                        "time": "2025-02-23T15:03:50.495Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 579.5322620183108,
                        "area_90": 2854.4376873631786,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.0956027861398696,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "c6acf1916bcf90893fae5bda6df616c9",
                        "classification": {
                            "BBH": 0.13702671,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.86297329
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-23T15:04:20Z",
                    "superevent_id": "S250223ek",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T15:04:22.534575Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T15:04:22.534608Z",
                "modified": "2025-02-23T15:04:22.549031Z"
            }
        },
        {
            "id": 8089,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182192,
                "topic": "igwn.gwalert",
                "uuid": "ab8715ff-486c-407f-ac77-4496dfef1545",
                "title": "S250223eb - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223eb/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223eb/view/"
                    },
                    "event": {
                        "far": 1.67315e-05,
                        "time": "2025-02-23T14:11:44.355Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 362.57485473122415,
                        "area_90": 1135.564301970709,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "e46faa9ec7d6d98c7a2ff5c196bc8c26",
                        "classification": {
                            "BBH": 0.001658909163587241,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9983410908364128
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-23T14:17:30Z",
                    "superevent_id": "S250223eb",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T14:17:31.628486Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T14:17:31.628534Z",
                "modified": "2025-02-23T14:17:31.637415Z"
            }
        },
        {
            "id": 8088,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182191,
                "topic": "igwn.gwalert",
                "uuid": "02e488d6-e268-4ed3-be51-f17c8349457c",
                "title": "S250223eb - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223eb/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223eb/view/"
                    },
                    "event": {
                        "far": 1.67315e-05,
                        "time": "2025-02-23T14:11:44.355Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 362.57485473122415,
                        "area_90": 1135.564301970709,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "e46faa9ec7d6d98c7a2ff5c196bc8c26",
                        "classification": {
                            "BBH": 0.001658909163587241,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9983410908364128
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-23T14:12:54Z",
                    "superevent_id": "S250223eb",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T14:12:54.575737Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T14:12:54.575769Z",
                "modified": "2025-02-23T14:12:54.585529Z"
            }
        },
        {
            "id": 8087,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182154,
                "topic": "igwn.gwalert",
                "uuid": "df8e3d36-628b-461e-9567-2d9a4a288b12",
                "title": "S250223dq - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223dq/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223dq/view/"
                    },
                    "event": {
                        "far": 1.058556e-05,
                        "time": "2025-02-23T12:34:55.401Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 372.9611135907124,
                        "area_90": 1219.7034899031282,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.7252407456864719,
                            "HasRemnant": 0.0003132821257708338
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "e051e5b8900218a3c370c2b7cd94e51d",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.001131314,
                            "NSBH": 0.000262626,
                            "Terrestrial": 0.99860606
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-23T12:40:00Z",
                    "superevent_id": "S250223dq",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T12:40:01.517885Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T12:40:01.517945Z",
                "modified": "2025-02-23T12:40:01.525647Z"
            }
        },
        {
            "id": 8086,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182153,
                "topic": "igwn.gwalert",
                "uuid": "b0524891-a828-49de-bab0-0437024a7a66",
                "title": "S250223dq - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223dq/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223dq/view/"
                    },
                    "event": {
                        "far": 1.058556e-05,
                        "time": "2025-02-23T12:34:55.401Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 372.9611135907124,
                        "area_90": 1219.7034899031282,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.7252407456864719,
                            "HasRemnant": 0.0003132821257708338
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "e051e5b8900218a3c370c2b7cd94e51d",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.001131314,
                            "NSBH": 0.000262626,
                            "Terrestrial": 0.99860606
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-23T12:35:25Z",
                    "superevent_id": "S250223dq",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T12:35:26.755371Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T12:35:26.755402Z",
                "modified": "2025-02-23T12:35:26.766501Z"
            }
        },
        {
            "id": 8085,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182152,
                "topic": "igwn.gwalert",
                "uuid": "a75695d2-6a3d-403d-b34f-232a68794342",
                "title": "S250223dk - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223dk/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223dk/view/"
                    },
                    "event": {
                        "far": 1.443192990183262e-05,
                        "time": "2025-02-23T12:01:15.360Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 726.6184733415679,
                        "area_90": 3202.7445501258135,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "9c1588dc600f3ff7af7dc00a0f0d7cd1",
                        "classification": {
                            "BBH": 0.07988696763057104,
                            "BNS": 1.8525508826436897e-16,
                            "NSBH": 1.3367669431353486e-14,
                            "Terrestrial": 0.9201130323694154
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-23T12:07:05Z",
                    "superevent_id": "S250223dk",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T12:07:05.894516Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T12:07:05.894548Z",
                "modified": "2025-02-23T12:07:05.905449Z"
            }
        },
        {
            "id": 8084,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182151,
                "topic": "igwn.gwalert",
                "uuid": "29c3a64e-7d81-4284-8d69-f6c32c2670a2",
                "title": "S250223dk - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223dk/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223dk/view/"
                    },
                    "event": {
                        "far": 1.31340700698367e-05,
                        "time": "2025-02-23T12:01:15.361Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 718.2255368894562,
                        "area_90": 3090.2792016675166,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "cb68b9326aabf0500245e8944d14b58f",
                        "classification": {
                            "BBH": 0.0854210967126608,
                            "BNS": 2.720232608718446e-16,
                            "NSBH": 1.9596802512612448e-14,
                            "Terrestrial": 0.9145789032873193
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-23T12:02:29Z",
                    "superevent_id": "S250223dk",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T12:02:30.685578Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T12:02:30.685609Z",
                "modified": "2025-02-23T12:02:30.697629Z"
            }
        },
        {
            "id": 8083,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182149,
                "topic": "igwn.gwalert",
                "uuid": "82838f21-8cbe-413f-8827-dcba63a74e84",
                "title": "S250223de - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223de/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223de/view/"
                    },
                    "event": {
                        "far": 1.67839e-05,
                        "time": "2025-02-23T11:40:28.442Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 1347.066300563923,
                        "area_90": 4950.1539194554625,
                        "duration": 0.034708,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "a2ae8b8323e8456478a313fb0ac46d11",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 894.267273
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-23T11:49:17Z",
                    "superevent_id": "S250223de",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T11:49:17.688175Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T11:49:17.688227Z",
                "modified": "2025-02-23T11:49:17.696371Z"
            }
        },
        {
            "id": 8082,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182147,
                "topic": "igwn.gwalert",
                "uuid": "c3b9ec55-2dde-4705-a251-43d2e9c31700",
                "title": "S250223de - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223de/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223de/view/"
                    },
                    "event": {
                        "far": 1.67839e-05,
                        "time": "2025-02-23T11:40:28.442Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 1347.066300563923,
                        "area_90": 4950.1539194554625,
                        "duration": 0.034708,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "a2ae8b8323e8456478a313fb0ac46d11",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 894.267273
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-23T11:44:43Z",
                    "superevent_id": "S250223de",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T11:44:44.315065Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T11:44:44.315092Z",
                "modified": "2025-02-23T11:44:44.327907Z"
            }
        },
        {
            "id": 8081,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182121,
                "topic": "igwn.gwalert",
                "uuid": "321a5af2-b382-436b-9d65-32fcd1d6b9c3",
                "title": "S250223cm - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223cm/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223cm/view/"
                    },
                    "event": {
                        "far": 1.962294231842859e-05,
                        "time": "2025-02-23T10:13:36.652Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 480.4956118833931,
                        "area_90": 1738.177139232327,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.03704895104895104,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "7a26d2032bf97b0f919c9ad4f0211405",
                        "classification": {
                            "BBH": 0.05417421621611396,
                            "BNS": 1.864979193459091e-17,
                            "NSBH": 1.1442115764425487e-15,
                            "Terrestrial": 0.9458257837838848
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-23T10:18:32Z",
                    "superevent_id": "S250223cm",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T10:18:33.193059Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T10:18:33.194014Z",
                "modified": "2025-02-23T10:18:33.211435Z"
            }
        },
        {
            "id": 8080,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182120,
                "topic": "igwn.gwalert",
                "uuid": "aecd0180-2af8-4ac3-905f-6ff8136e0b8e",
                "title": "S250223cm - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223cm/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223cm/view/"
                    },
                    "event": {
                        "far": 1.894593608474935e-05,
                        "time": "2025-02-23T10:13:36.652Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 442.77985370171626,
                        "area_90": 1888.4107017251258,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.03446153846153846,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "8509eebab6a4b529cc7cbfb81ad5c02e",
                        "classification": {
                            "BBH": 0.05787023707106445,
                            "BNS": 1.729768735867323e-17,
                            "NSBH": 1.061947618303012e-15,
                            "Terrestrial": 0.9421297629289345
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-23T10:13:56Z",
                    "superevent_id": "S250223cm",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T10:13:57.529798Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T10:13:57.529828Z",
                "modified": "2025-02-23T10:13:57.537999Z"
            }
        },
        {
            "id": 8079,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182096,
                "topic": "igwn.gwalert",
                "uuid": "9b12b145-8abc-477e-b06e-28965aade864",
                "title": "S250223bk - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223bk/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223bk/view/"
                    },
                    "event": {
                        "far": 6.123834e-06,
                        "time": "2025-02-23T07:41:48.230Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 413.5619436778025,
                        "area_90": 1729.7842027802149,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.12290261824795295,
                            "HasRemnant": 0.08773038059750889
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "9fdfc06961d2c850ca791b9dc6b991a0",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.000776748,
                            "NSBH": 0.001121969,
                            "Terrestrial": 0.998101284
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-23T07:46:53Z",
                    "superevent_id": "S250223bk",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T07:46:53.753791Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T07:46:53.753843Z",
                "modified": "2025-02-23T07:46:53.764468Z"
            }
        },
        {
            "id": 8078,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182095,
                "topic": "igwn.gwalert",
                "uuid": "e990819c-7cfb-4116-918c-cafc4281fe32",
                "title": "S250223bk - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223bk/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223bk/view/"
                    },
                    "event": {
                        "far": 6.123834e-06,
                        "time": "2025-02-23T07:41:48.230Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 413.5619436778025,
                        "area_90": 1729.7842027802149,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.12290261824795295,
                            "HasRemnant": 0.08773038059750889
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "9fdfc06961d2c850ca791b9dc6b991a0",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.000776748,
                            "NSBH": 0.001121969,
                            "Terrestrial": 0.998101284
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-23T07:42:18Z",
                    "superevent_id": "S250223bk",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T07:42:19.500479Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T07:42:19.500527Z",
                "modified": "2025-02-23T07:42:19.510807Z"
            }
        },
        {
            "id": 8077,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182094,
                "topic": "igwn.gwalert",
                "uuid": "ae4e53e2-ce14-40c0-858d-f034e821f493",
                "title": "S250223bh - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223bh/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223bh/view/"
                    },
                    "event": {
                        "far": 2.199638859229397e-05,
                        "time": "2025-02-23T07:26:59.598Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 400.23815706007525,
                        "area_90": 1597.1758068368506,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.44024142433238866,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "99dcd77dfc4197ab4c814fecd6513110",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.00013399552966399794,
                            "NSBH": 0.0010940458075840778,
                            "Terrestrial": 0.9987719586627519
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-23T07:32:04Z",
                    "superevent_id": "S250223bh",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T07:32:05.054431Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T07:32:05.054459Z",
                "modified": "2025-02-23T07:32:05.068910Z"
            }
        },
        {
            "id": 8076,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182093,
                "topic": "igwn.gwalert",
                "uuid": "a8e9156c-66ee-4f6a-bf83-9aae4842181d",
                "title": "S250223bh - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223bh/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223bh/view/"
                    },
                    "event": {
                        "far": 2.199638859229397e-05,
                        "time": "2025-02-23T07:26:59.598Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 407.6344323084987,
                        "area_90": 1632.4261399357197,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.2256237463240628,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "d4edf7c46486ff47a575b897b8784c70",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.00013184590728746053,
                            "NSBH": 0.0010961954299606087,
                            "Terrestrial": 0.9987719586627519
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-23T07:27:28Z",
                    "superevent_id": "S250223bh",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T07:27:29.763859Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T07:27:29.763890Z",
                "modified": "2025-02-23T07:27:29.777011Z"
            }
        },
        {
            "id": 8075,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182092,
                "topic": "igwn.gwalert",
                "uuid": "6940ee6c-2ccb-45d4-9d82-d151170c23f8",
                "title": "S250223be - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223be/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223be/view/"
                    },
                    "event": {
                        "far": 8.40897832057648e-06,
                        "time": "2025-02-23T07:16:53.897Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1043.6616478200863,
                        "area_90": 5579.624153363839,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.04264138160689884,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "69460ef69a1fd863a4eec504d11a4694",
                        "classification": {
                            "BBH": 0.13847219272176087,
                            "BNS": 1.0016804666748705e-13,
                            "NSBH": 5.267149070028535e-09,
                            "Terrestrial": 0.8615278020109899
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-23T07:21:52Z",
                    "superevent_id": "S250223be",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T07:21:53.585660Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T07:21:53.585692Z",
                "modified": "2025-02-23T07:21:53.596950Z"
            }
        },
        {
            "id": 8074,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182091,
                "topic": "igwn.gwalert",
                "uuid": "7ceb39ac-87f6-4991-9fa5-cefe93a80ad6",
                "title": "S250223be - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223be/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223be/view/"
                    },
                    "event": {
                        "far": 8.40897832057648e-06,
                        "time": "2025-02-23T07:16:53.905Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1515.7643232513676,
                        "area_90": 6600.205225940617,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0872094136193162,
                            "HasMassGap": 0.04264138160689884,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "b4529543d6cbaf3c584cc8728027caf4",
                        "classification": {
                            "BBH": 0.13847219272176087,
                            "BNS": 1.0016804666748705e-13,
                            "NSBH": 5.267149070028535e-09,
                            "Terrestrial": 0.8615278020109899
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-23T07:17:17Z",
                    "superevent_id": "S250223be",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T07:17:18.168287Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T07:17:18.168317Z",
                "modified": "2025-02-23T07:17:18.182921Z"
            }
        },
        {
            "id": 8073,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182082,
                "topic": "igwn.gwalert",
                "uuid": "5cbd790a-6a70-4c54-90bd-7539b1ec98aa",
                "title": "S250223ba - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223ba/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223ba/view/"
                    },
                    "event": {
                        "far": 1.4827e-05,
                        "time": "2025-02-23T06:55:54.466Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 967.7055729284755,
                        "area_90": 5632.499653012142,
                        "duration": 0.006141,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "c6a7730686e17bb95ed65a30e7f6b3cb",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 1711.445312
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-23T07:02:14Z",
                    "superevent_id": "S250223ba",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T07:02:15.255014Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T07:02:15.255065Z",
                "modified": "2025-02-23T07:02:15.262684Z"
            }
        },
        {
            "id": 8072,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182081,
                "topic": "igwn.gwalert",
                "uuid": "9e49766c-4310-40e2-a4dd-ca02cbbdb68b",
                "title": "S250223ba - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223ba/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223ba/view/"
                    },
                    "event": {
                        "far": 1.4827e-05,
                        "time": "2025-02-23T06:55:54.466Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 967.7055729284755,
                        "area_90": 5632.499653012142,
                        "duration": 0.006141,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "c6a7730686e17bb95ed65a30e7f6b3cb",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 1711.445312
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-23T06:57:39Z",
                    "superevent_id": "S250223ba",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T06:57:40.869784Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T06:57:40.869813Z",
                "modified": "2025-02-23T06:57:40.881711Z"
            }
        },
        {
            "id": 8071,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182068,
                "topic": "igwn.gwalert",
                "uuid": "6a72ed56-0e4e-4691-aeca-800a59f15aa9",
                "title": "S250223as - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223as/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223as/view/"
                    },
                    "event": {
                        "far": 2.14894e-05,
                        "time": "2025-02-23T06:10:14.101Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 567.3625041627489,
                        "area_90": 2164.5383109995996,
                        "duration": 0.007673,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "68b9cb687db315c22f7949aef2b5517e",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 677.307251
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-23T06:16:20Z",
                    "superevent_id": "S250223as",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T06:16:20.981271Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T06:16:20.981297Z",
                "modified": "2025-02-23T06:16:20.993608Z"
            }
        },
        {
            "id": 8070,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182067,
                "topic": "igwn.gwalert",
                "uuid": "2b3ea80e-66b9-4b34-94df-784fec94b175",
                "title": "S250223as - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223as/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223as/view/"
                    },
                    "event": {
                        "far": 2.14894e-05,
                        "time": "2025-02-23T06:10:14.101Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 567.3625041627489,
                        "area_90": 2164.5383109995996,
                        "duration": 0.007673,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "68b9cb687db315c22f7949aef2b5517e",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 677.307251
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-23T06:11:45Z",
                    "superevent_id": "S250223as",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T06:11:46.560134Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T06:11:46.560189Z",
                "modified": "2025-02-23T06:11:46.580298Z"
            }
        },
        {
            "id": 8069,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182021,
                "topic": "igwn.gwalert",
                "uuid": "ea3f0e72-560c-4bfe-b823-b40612d562ae",
                "title": "S250223x - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223x/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223x/view/"
                    },
                    "event": {
                        "far": 1.835117683703975e-05,
                        "time": "2025-02-23T02:18:07.685Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 484.48225669814616,
                        "area_90": 1609.3455646924126,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.02971428571428571,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "38a0de1817e190f525d927f95a12655c",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.001876370971497484,
                            "NSBH": 0.0006452166461222963,
                            "Terrestrial": 0.9974784123823802
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-23T02:23:07Z",
                    "superevent_id": "S250223x",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T02:23:07.913668Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T02:23:07.913719Z",
                "modified": "2025-02-23T02:23:07.920258Z"
            }
        },
        {
            "id": 8068,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182010,
                "topic": "igwn.gwalert",
                "uuid": "949f2382-b238-4a00-af23-5d6c44fcbd23",
                "title": "S250223x - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223x/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223x/view/"
                    },
                    "event": {
                        "far": 1.835117683703975e-05,
                        "time": "2025-02-23T02:18:07.681Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 431.86903631397115,
                        "area_90": 1563.394237617101,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "990f2a928f3a7bbc8a1d7fe6a6c6dd02",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.0019351185260039307,
                            "NSBH": 0.0005864690916158844,
                            "Terrestrial": 0.9974784123823802
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-23T02:18:32Z",
                    "superevent_id": "S250223x",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T02:18:32.695883Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T02:18:32.695915Z",
                "modified": "2025-02-23T02:18:32.704822Z"
            }
        },
        {
            "id": 8067,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182002,
                "topic": "igwn.gwalert",
                "uuid": "11a795fa-6f7f-4a55-bc4a-50f3d7ca9e40",
                "title": "S250223t - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223t/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223t/view/"
                    },
                    "event": {
                        "far": 2.142196513042587e-05,
                        "time": "2025-02-23T01:51:57.592Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 74.8282740558581,
                        "area_90": 378.31161057893354,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.038534798534798534,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "3f0ab3e40ed4070736b780f907be6c18",
                        "classification": {
                            "BBH": 0.04926882399686954,
                            "BNS": 4.001747606770739e-19,
                            "NSBH": 2.8867242931096737e-17,
                            "Terrestrial": 0.9507311760031304
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-23T01:56:57Z",
                    "superevent_id": "S250223t",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T01:56:58.114724Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T01:56:58.114789Z",
                "modified": "2025-02-23T01:56:58.138847Z"
            }
        },
        {
            "id": 8066,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182001,
                "topic": "igwn.gwalert",
                "uuid": "85e38886-52f2-457f-9492-a793eef1fcc3",
                "title": "S250223s - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223s/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223s/view/"
                    },
                    "event": {
                        "far": 2.062955251768625e-05,
                        "time": "2025-02-23T01:47:34.528Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 73.39885206635783,
                        "area_90": 425.10223129945604,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "f2f22d2ac30d2a77d97513c63750dbb2",
                        "classification": {
                            "BBH": 0.05204599125802697,
                            "BNS": 7.987849633455375e-30,
                            "NSBH": 7.01078334512561e-28,
                            "Terrestrial": 0.947954008741973
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-23T01:52:32Z",
                    "superevent_id": "S250223s",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T01:52:33.009964Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T01:52:33.009997Z",
                "modified": "2025-02-23T01:52:33.015100Z"
            }
        },
        {
            "id": 8065,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 182000,
                "topic": "igwn.gwalert",
                "uuid": "d55755a3-6585-42e4-953c-c2b412cd6fab",
                "title": "S250223t - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223t/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223t/view/"
                    },
                    "event": {
                        "far": 2.142196513042587e-05,
                        "time": "2025-02-23T01:51:57.611Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 97.41051869732107,
                        "area_90": 1049.1170565139585,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "47bb94e4fce397c416cc2ec7dbec20b8",
                        "classification": {
                            "BBH": 0.04926882399686954,
                            "BNS": 4.001747606770739e-19,
                            "NSBH": 2.8867242931096737e-17,
                            "Terrestrial": 0.9507311760031304
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-23T01:52:20Z",
                    "superevent_id": "S250223t",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T01:52:21.891639Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T01:52:21.891683Z",
                "modified": "2025-02-23T01:52:21.898508Z"
            }
        },
        {
            "id": 8064,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181999,
                "topic": "igwn.gwalert",
                "uuid": "8c8f0fa9-c9c2-44ae-a5a8-7c7b7c887a15",
                "title": "S250223s - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223s/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223s/view/"
                    },
                    "event": {
                        "far": 5.230101830893934e-06,
                        "time": "2025-02-23T01:47:34.529Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 76.16589830291339,
                        "area_90": 444.4059851393129,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "0d541d252364988b21f1fc260d3b222e",
                        "classification": {
                            "BBH": 0.21632317423847164,
                            "BNS": 5.378275180279128e-29,
                            "NSBH": 4.8942590603990094e-27,
                            "Terrestrial": 0.7836768257615283
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-23T01:47:56Z",
                    "superevent_id": "S250223s",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T01:47:57.232983Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T01:47:57.233030Z",
                "modified": "2025-02-23T01:47:57.242612Z"
            }
        },
        {
            "id": 8063,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181971,
                "topic": "igwn.gwalert",
                "uuid": "1dfa83a0-0b53-43fb-8439-c695a79791a5",
                "title": "S250223c - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223c/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223c/view/"
                    },
                    "event": {
                        "far": 2.102909e-06,
                        "time": "2025-02-23T00:20:58.397Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 341.95970457072485,
                        "area_90": 1877.4998843373805,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.33065084987541127,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "1128a256d5335248a17a9e7b8e16f8ca",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.003440547,
                            "NSBH": 0.001656559,
                            "Terrestrial": 0.994902894
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-23T00:26:05Z",
                    "superevent_id": "S250223c",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T00:26:06.607830Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T00:26:06.607862Z",
                "modified": "2025-02-23T00:26:06.621068Z"
            }
        },
        {
            "id": 8062,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181970,
                "topic": "igwn.gwalert",
                "uuid": "724a291e-eb40-40ec-8b09-070fbb079288",
                "title": "S250223c - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250223c/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250223c/view/"
                    },
                    "event": {
                        "far": 2.102909e-06,
                        "time": "2025-02-23T00:20:58.397Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 341.95970457072485,
                        "area_90": 1877.4998843373805,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.33065084987541127,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "1128a256d5335248a17a9e7b8e16f8ca",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.003440547,
                            "NSBH": 0.001656559,
                            "Terrestrial": 0.994902894
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-23T00:21:29Z",
                    "superevent_id": "S250223c",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-23T00:21:30.184044Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-23T00:21:30.184077Z",
                "modified": "2025-02-23T00:21:30.197593Z"
            }
        },
        {
            "id": 8061,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181969,
                "topic": "igwn.gwalert",
                "uuid": "e818e9a1-27a0-4261-9804-b683bfdf9123",
                "title": "S250222gn - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222gn/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222gn/view/"
                    },
                    "event": {
                        "far": 2.156852e-05,
                        "time": "2025-02-22T23:54:27.984Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1165.5690497870085,
                        "area_90": 4265.290304963151,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.31201368683335323,
                            "HasMassGap": 0.05774569733849652,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "8dff2e97db2a8f58e20abf102770e686",
                        "classification": {
                            "BBH": 0.030053702,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.969946298
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-22T23:59:33Z",
                    "superevent_id": "S250222gn",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T23:59:34.470380Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T23:59:34.470425Z",
                "modified": "2025-02-22T23:59:34.479493Z"
            }
        },
        {
            "id": 8060,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181968,
                "topic": "igwn.gwalert",
                "uuid": "f520e421-ee77-4497-b432-bc15f969213e",
                "title": "S250222gn - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222gn/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222gn/view/"
                    },
                    "event": {
                        "far": 2.156852e-05,
                        "time": "2025-02-22T23:54:27.984Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1165.5690497870085,
                        "area_90": 4265.290304963151,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 0.31201368683335323,
                            "HasMassGap": 0.05774569733849652,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "8dff2e97db2a8f58e20abf102770e686",
                        "classification": {
                            "BBH": 0.030053702,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.969946298
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-22T23:54:58Z",
                    "superevent_id": "S250222gn",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T23:54:59.494880Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T23:54:59.494910Z",
                "modified": "2025-02-22T23:54:59.512148Z"
            }
        },
        {
            "id": 8059,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181946,
                "topic": "igwn.gwalert",
                "uuid": "964e965b-4920-4007-a2b4-14339dc4d46d",
                "title": "S250222gf - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222gf/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222gf/view/"
                    },
                    "event": {
                        "far": 1.26405e-05,
                        "time": "2025-02-22T22:45:34.323Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 845.1687007276453,
                        "area_90": 4078.1278220810595,
                        "duration": 0.051712,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "b58df2e588785185db0a8d85706e3092",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 59.684513
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-22T22:51:49Z",
                    "superevent_id": "S250222gf",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T22:51:50.251258Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T22:51:50.251284Z",
                "modified": "2025-02-22T22:51:50.263132Z"
            }
        },
        {
            "id": 8058,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181945,
                "topic": "igwn.gwalert",
                "uuid": "8029b311-048f-4394-ac6d-91ca34f90c34",
                "title": "S250222gf - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222gf/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222gf/view/"
                    },
                    "event": {
                        "far": 1.26405e-05,
                        "time": "2025-02-22T22:45:34.323Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 845.1687007276453,
                        "area_90": 4078.1278220810595,
                        "duration": 0.051712,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "b58df2e588785185db0a8d85706e3092",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 59.684513
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-22T22:47:14Z",
                    "superevent_id": "S250222gf",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T22:47:15.719356Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T22:47:15.719388Z",
                "modified": "2025-02-22T22:47:15.731059Z"
            }
        },
        {
            "id": 8057,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181944,
                "topic": "igwn.gwalert",
                "uuid": "45a20a81-d7f8-4b72-ae58-ef876ee942c6",
                "title": "S250222gd - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222gd/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222gd/view/"
                    },
                    "event": {
                        "far": 9.561991176660777e-06,
                        "time": "2025-02-22T22:38:21.193Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 807.4004866931426,
                        "area_90": 3265.6915735166513,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.4556695085790745,
                            "HasMassGap": 0.7866729157552956,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "de11d68eefd01b4a60f8f6fff5128ae4",
                        "classification": {
                            "BBH": 0.10488751201051721,
                            "BNS": 1.6801555335603387e-16,
                            "NSBH": 0.0009153662093504902,
                            "Terrestrial": 0.8941971217801321
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-22T22:43:30Z",
                    "superevent_id": "S250222gd",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T22:43:31.420448Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T22:43:31.420478Z",
                "modified": "2025-02-22T22:43:31.428783Z"
            }
        },
        {
            "id": 8056,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181943,
                "topic": "igwn.gwalert",
                "uuid": "7496559a-d2b4-4d14-863a-99fc613d35ab",
                "title": "S250222gd - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222gd/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222gd/view/"
                    },
                    "event": {
                        "far": 9.561991176660777e-06,
                        "time": "2025-02-22T22:38:21.196Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 473.25670419344675,
                        "area_90": 1884.21423349907,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.40404541236379765,
                            "HasMassGap": 0.8350057696672653,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "3e1f6cc3c4cd2cbab8293d618be9c785",
                        "classification": {
                            "BBH": 0.10488751201051721,
                            "BNS": 1.6801555335603387e-16,
                            "NSBH": 0.0009153662093504902,
                            "Terrestrial": 0.8941971217801321
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-22T22:38:55Z",
                    "superevent_id": "S250222gd",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T22:38:55.976694Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T22:38:55.976724Z",
                "modified": "2025-02-22T22:38:55.987391Z"
            }
        },
        {
            "id": 8055,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181936,
                "topic": "igwn.gwalert",
                "uuid": "b303edb2-ce6f-44a4-a2aa-e027ddfb2359",
                "title": "S250222fs - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222fs/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222fs/view/"
                    },
                    "event": {
                        "far": 2.839071338403164e-06,
                        "time": "2025-02-22T21:03:19.001Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 294.22487849933975,
                        "area_90": 1482.6122242655265,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "7dd98d44b29abf2013cdd0f7a3f38eef",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.01211742097431855,
                            "NSBH": 2.8880153262865243e-05,
                            "Terrestrial": 0.9878536988724186
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-22T21:08:20Z",
                    "superevent_id": "S250222fs",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T21:08:21.621584Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T21:08:21.621633Z",
                "modified": "2025-02-22T21:08:21.630565Z"
            }
        },
        {
            "id": 8054,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181935,
                "topic": "igwn.gwalert",
                "uuid": "fab55edc-343b-4671-846e-66542973f12a",
                "title": "S250222fs - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222fs/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222fs/view/"
                    },
                    "event": {
                        "far": 2.839071338403164e-06,
                        "time": "2025-02-22T21:03:19.001Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 296.37556846519334,
                        "area_90": 1491.0051607176383,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "14bcefb49c30400b4dc6aae1ef5ef60b",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.01210942289876586,
                            "NSBH": 3.687822881552129e-05,
                            "Terrestrial": 0.9878536988724186
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-22T21:03:44Z",
                    "superevent_id": "S250222fs",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T21:03:45.210358Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T21:03:45.210388Z",
                "modified": "2025-02-22T21:03:45.224523Z"
            }
        },
        {
            "id": 8053,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181925,
                "topic": "igwn.gwalert",
                "uuid": "13df4fa4-31f9-4b13-8d7f-0d6661989b57",
                "title": "S250222fk - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222fk/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222fk/view/"
                    },
                    "event": {
                        "far": 1.66571e-05,
                        "time": "2025-02-22T20:30:50.500Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 2161.181136418755,
                        "area_90": 6621.187567070898,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "bf5d10290c40171bb2861ca4bbf645a6",
                        "classification": {
                            "BBH": 0.0023016576466537986,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9976983423533462
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-22T20:36:42Z",
                    "superevent_id": "S250222fk",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T20:36:42.980109Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T20:36:42.980135Z",
                "modified": "2025-02-22T20:36:42.989591Z"
            }
        },
        {
            "id": 8052,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181924,
                "topic": "igwn.gwalert",
                "uuid": "77182e35-658c-481f-aa7a-02fdf9e55ec6",
                "title": "S250222fk - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222fk/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222fk/view/"
                    },
                    "event": {
                        "far": 1.66571e-05,
                        "time": "2025-02-22T20:30:50.500Z",
                        "group": "CBC",
                        "search": "BBH",
                        "area_50": 2161.181136418755,
                        "area_90": 6621.187567070898,
                        "duration": null,
                        "pipeline": "CWB",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.004106583072100313,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "bf5d10290c40171bb2861ca4bbf645a6",
                        "classification": {
                            "BBH": 0.0023016576466537986,
                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9976983423533462
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-22T20:32:08Z",
                    "superevent_id": "S250222fk",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T20:32:08.772984Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T20:32:08.773012Z",
                "modified": "2025-02-22T20:32:08.781903Z"
            }
        },
        {
            "id": 8051,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181915,
                "topic": "igwn.gwalert",
                "uuid": "66e6d699-e953-47be-8163-9ab4301a7166",
                "title": "S250222fd - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222fd/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222fd/view/"
                    },
                    "event": {
                        "far": 1.75931e-05,
                        "time": "2025-02-22T19:23:36.601Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 468.32585402783116,
                        "area_90": 1753.284424846128,
                        "duration": 0.024589,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "606053aa7d87128cf9e2b9d5c926a401",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 957.129028
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-22T19:29:25Z",
                    "superevent_id": "S250222fd",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T19:29:26.012416Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T19:29:26.012450Z",
                "modified": "2025-02-22T19:29:26.021861Z"
            }
        },
        {
            "id": 8050,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181914,
                "topic": "igwn.gwalert",
                "uuid": "bfa3ff3f-59be-4401-b588-7327cd0e44a7",
                "title": "S250222fd - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222fd/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222fd/view/"
                    },
                    "event": {
                        "far": 1.75931e-05,
                        "time": "2025-02-22T19:23:36.601Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 468.32585402783116,
                        "area_90": 1753.284424846128,
                        "duration": 0.024589,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "606053aa7d87128cf9e2b9d5c926a401",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 957.129028
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-22T19:24:51Z",
                    "superevent_id": "S250222fd",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T19:24:52.315699Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T19:24:52.315732Z",
                "modified": "2025-02-22T19:24:52.329841Z"
            }
        },
        {
            "id": 8049,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181899,
                "topic": "igwn.gwalert",
                "uuid": "2221c345-defa-4a07-b667-de985b125e42",
                "title": "S250222et - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222et/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222et/view/"
                    },
                    "event": {
                        "far": 2.327857713264825e-06,
                        "time": "2025-02-22T18:23:47.480Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 2316.4504607828208,
                        "area_90": 8654.796069417554,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.04264138160689884,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "e537f78f75c2a4440684a1b8705f6cb0",
                        "classification": {
                            "BBH": 0.41693039807759025,
                            "BNS": 1.6165702921017345e-16,
                            "NSBH": 1.2708792932331693e-14,
                            "Terrestrial": 0.5830696019223969
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-22T18:28:47Z",
                    "superevent_id": "S250222et",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T18:28:47.971016Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T18:28:47.971050Z",
                "modified": "2025-02-22T18:28:47.980428Z"
            }
        },
        {
            "id": 8048,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181898,
                "topic": "igwn.gwalert",
                "uuid": "6b9934dd-1bba-4092-a791-44b4355518a8",
                "title": "S250222et - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222et/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222et/view/"
                    },
                    "event": {
                        "far": 8.867673786865516e-06,
                        "time": "2025-02-22T18:23:47.495Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 2175.449128387345,
                        "area_90": 8762.225656004584,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.04264138160689884,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "6efa68eef95e688d10af4105f5a66f49",
                        "classification": {
                            "BBH": 0.13129075542046562,
                            "BNS": 1.838768955683653e-17,
                            "NSBH": 1.4490872100173174e-15,
                            "Terrestrial": 0.8687092445795329
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-22T18:24:11Z",
                    "superevent_id": "S250222et",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T18:24:12.310335Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T18:24:12.310365Z",
                "modified": "2025-02-22T18:24:12.323534Z"
            }
        },
        {
            "id": 8047,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181889,
                "topic": "igwn.gwalert",
                "uuid": "c5396fdf-57e8-4d6a-93f9-76272cdff164",
                "title": "S250222ej - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222ej/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222ej/view/"
                    },
                    "event": {
                        "far": 7.740321011422873e-06,
                        "time": "2025-02-22T17:31:32.366Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 544.229473066616,
                        "area_90": 2669.793085416722,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.012712917913729273,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "1c8703c596afe74c241a0ec73456a6c0",
                        "classification": {
                            "BBH": 0.1562064067918857,
                            "BNS": 2.5674581317274692e-14,
                            "NSBH": 1.8348869165666044e-12,
                            "Terrestrial": 0.8437935932062537
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-22T17:36:34Z",
                    "superevent_id": "S250222ej",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T17:36:35.020118Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T17:36:35.020149Z",
                "modified": "2025-02-22T17:36:35.031817Z"
            }
        },
        {
            "id": 8046,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181888,
                "topic": "igwn.gwalert",
                "uuid": "e93d93a0-900a-4483-9b8e-03402d63c5a9",
                "title": "S250222ej - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222ej/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222ej/view/"
                    },
                    "event": {
                        "far": 7.740321011422873e-06,
                        "time": "2025-02-22T17:31:32.366Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 544.229473066616,
                        "area_90": 2669.793085416722,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.012712917913729273,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "1c8703c596afe74c241a0ec73456a6c0",
                        "classification": {
                            "BBH": 0.1562064067918857,
                            "BNS": 2.5674581317274692e-14,
                            "NSBH": 1.8348869165666044e-12,
                            "Terrestrial": 0.8437935932062537
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-22T17:31:59Z",
                    "superevent_id": "S250222ej",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T17:32:00.486415Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T17:32:00.486446Z",
                "modified": "2025-02-22T17:32:00.538187Z"
            }
        },
        {
            "id": 8045,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181855,
                "topic": "igwn.gwalert",
                "uuid": "8ce6f540-1b4b-41fe-813f-1487536130b0",
                "title": "S250222dy - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222dy/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222dy/view/"
                    },
                    "event": {
                        "far": 6.042410448664369e-06,
                        "time": "2025-02-22T15:48:33.298Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 398.45465806400153,
                        "area_90": 1479.4648730959846,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "8354e28a3ffbe98c6f9821224ea2990c",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.008504045400667959,
                            "NSBH": 0.0,
                            "Terrestrial": 0.991495954599332
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-22T15:53:31Z",
                    "superevent_id": "S250222dy",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T15:53:33.079859Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T15:53:33.079887Z",
                "modified": "2025-02-22T15:53:33.087839Z"
            }
        },
        {
            "id": 8044,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181854,
                "topic": "igwn.gwalert",
                "uuid": "30298147-09ea-47ff-9a23-cfb04af5e880",
                "title": "S250222dy - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222dy/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222dy/view/"
                    },
                    "event": {
                        "far": 6.042410448664369e-06,
                        "time": "2025-02-22T15:48:33.298Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 421.2204981903545,
                        "area_90": 1526.8849640504152,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.0,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "8d53200fc0443aa5257452ea6fd48636",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.008504045400667974,
                            "NSBH": 0.0,
                            "Terrestrial": 0.991495954599332
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-22T15:48:56Z",
                    "superevent_id": "S250222dy",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T15:48:57.872495Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T15:48:57.872716Z",
                "modified": "2025-02-22T15:48:57.882135Z"
            }
        },
        {
            "id": 8043,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181841,
                "topic": "igwn.gwalert",
                "uuid": "42d29147-dd6d-491e-9f5f-df7939e33cae",
                "title": "S250222dh - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222dh/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222dh/view/"
                    },
                    "event": {
                        "far": 1.785894021315505e-05,
                        "time": "2025-02-22T13:56:46.787Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 464.706400182858,
                        "area_90": 1763.3559485886617,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.05958372114542713,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "dcc82da7129ad1fd61c3421a5ecd1bf1",
                        "classification": {
                            "BBH": 0.0003798208550760813,
                            "BNS": 0.0,
                            "NSBH": 0.0022362086597091527,
                            "Terrestrial": 0.9973839704852148
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-22T14:01:47Z",
                    "superevent_id": "S250222dh",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T14:01:48.834420Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T14:01:48.834455Z",
                "modified": "2025-02-22T14:01:48.846530Z"
            }
        },
        {
            "id": 8042,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181840,
                "topic": "igwn.gwalert",
                "uuid": "863f9c90-3d96-4df9-a34e-21496acf270c",
                "title": "S250222dh - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222dh/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222dh/view/"
                    },
                    "event": {
                        "far": 1.785894021315505e-05,
                        "time": "2025-02-22T13:56:46.787Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 476.35159951016294,
                        "area_90": 1776.7846469120407,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.015347549909255898,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "1bb259b2e36de6dff151e520adca2059",
                        "classification": {
                            "BBH": 0.0003770746603487588,
                            "BNS": 0.0,
                            "NSBH": 0.0022389548544365194,
                            "Terrestrial": 0.9973839704852148
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-22T13:57:11Z",
                    "superevent_id": "S250222dh",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T13:57:12.689167Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T13:57:12.689199Z",
                "modified": "2025-02-22T13:57:12.700017Z"
            }
        },
        {
            "id": 8041,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181839,
                "topic": "igwn.gwalert",
                "uuid": "b43d9fda-5fe8-4ff9-b3fe-664cbe3c5925",
                "title": "S250222df - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222df/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222df/view/"
                    },
                    "event": {
                        "far": 1.3199e-06,
                        "time": "2025-02-22T13:49:43.039Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 62.107729745626344,
                        "area_90": 820.1997147826131,
                        "duration": 0.009312,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "b06d45ae6be3539bfc635f41e3e3f134",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 504.294373
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-22T13:55:50Z",
                    "superevent_id": "S250222df",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T13:55:51.359946Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T13:55:51.359977Z",
                "modified": "2025-02-22T13:55:51.368136Z"
            }
        },
        {
            "id": 8040,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181838,
                "topic": "igwn.gwalert",
                "uuid": "447fec4f-2ccb-4cf7-853e-a6a549cf7efd",
                "title": "S250222df - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222df/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222df/view/"
                    },
                    "event": {
                        "far": 1.3199e-06,
                        "time": "2025-02-22T13:49:43.039Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 62.107729745626344,
                        "area_90": 820.1997147826131,
                        "duration": 0.009312,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "b06d45ae6be3539bfc635f41e3e3f134",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 504.294373
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-22T13:51:15Z",
                    "superevent_id": "S250222df",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T13:51:16.137905Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T13:51:16.137957Z",
                "modified": "2025-02-22T13:51:16.162201Z"
            }
        },
        {
            "id": 8039,
            "sequence_number": 0,
            "sequence_type": "INITIAL",
            "message": {
                "id": 181835,
                "topic": "gcn.classic.text.ICECUBE_CASCADE",
                "uuid": "1d92f0c1-69bf-465a-a42f-457bb0209d21",
                "title": "GCN/AMON NOTICE",
                "submitter": "",
                "authors": "",
                "data": {
                    "far": "0.5820 [yr^-1]",
                    "urls": {
                        "gcn": "https://gcn.gsfc.nasa.gov/notices_amon_icecube_cascade/140500_12724443.amon"
                    },
                    "title": "GCN/AMON NOTICE",
                    "energy": "67.51 [TeV]",
                    "src_ra": "249.9491d {+16h 39m 48s} (J2000),\n250.2809d {+16h 41m 07s} (current),\n249.2893d {+16h 37m 09s} (1950)",
                    "stream": "26",
                    "run_num": "140500",
                    "src_dec": "-4.2826d {-04d 16' 56\"} (J2000),\n-4.3302d {-04d 19' 48\"} (current),\n-4.1856d {-04d 11' 07\"} (1950)",
                    "comments": "IceCube Cascade event.\nThe position error is the combined statistical and the systematic.",
                    "revision": "0",
                    "sun_dist": "78.29 [deg]   Sun_angle= 5.3 [hr] (West of Sun)",
                    "event_num": "12724443",
                    "moon_dist": "70.77 [deg]",
                    "src_error": "6.01 [deg radius, stat+systematic, 90% containment]",
                    "sun_postn": "329.23d {+21h 56m 56s}  -12.50d {-12d 30' 07\"}",
                    "ecl_coords": "248.97, 17.70 [deg] ecliptic lon,lat of the event",
                    "event_name": "IceCubeCascade-250215a",
                    "gal_coords": "12.40, 26.63 [deg] galactic lon,lat of the event",
                    "moon_postn": "179.56d {+11h 58m 15s}   -0.13d {-00d 07' 40\"}",
                    "signalness": "8.6119e-01 [dn]",
                    "notice_date": "Sat 15 Feb 25 11:10:31 UT",
                    "notice_type": "ICECUBE Cascade",
                    "src_error50": "3.30 [deg radius, stat+systematic, 50% containment]",
                    "discovery_date": "20721 TJD;    46 DOY;   25/02/15 (yy/mm/dd)",
                    "discovery_time": "39942 SOD {11:05:42.72} UT",
                    "skymap_png_url": "https://roc.icecube.wisc.edu/public/hese_cascades/hese_60721_run00140500.evt000012724443.png",
                    "skymap_fits_url": "https://roc.icecube.wisc.edu/public/hese_cascades/hese_60721_run00140500.evt000012724443.fits"
                },
                "message_text": "TITLE:            GCN/AMON NOTICE\nNOTICE_DATE:      Sat 15 Feb 25 11:10:31 UT\nNOTICE_TYPE:      ICECUBE Cascade \nEVENT_NAME:       IceCubeCascade-250215a\nSTREAM:           26\nRUN_NUM:          140500\nEVENT_NUM:        12724443\nSRC_RA:           249.9491d {+16h 39m 48s} (J2000),\n                  250.2809d {+16h 41m 07s} (current),\n                  249.2893d {+16h 37m 09s} (1950)\nSRC_DEC:           -4.2826d {-04d 16' 56\"} (J2000),\n                   -4.3302d {-04d 19' 48\"} (current),\n                   -4.1856d {-04d 11' 07\"} (1950)\nSRC_ERROR:        6.01 [deg radius, stat+systematic, 90% containment]\nSRC_ERROR50:      3.30 [deg radius, stat+systematic, 50% containment]\nDISCOVERY_DATE:   20721 TJD;    46 DOY;   25/02/15 (yy/mm/dd)\nDISCOVERY_TIME:   39942 SOD {11:05:42.72} UT\nREVISION:         0\nENERGY:           67.51 [TeV]\nSIGNALNESS:       8.6119e-01 [dn]\nFAR:              0.5820 [yr^-1]\nSUN_POSTN:        329.23d {+21h 56m 56s}  -12.50d {-12d 30' 07\"}\nSUN_DIST:          78.29 [deg]   Sun_angle= 5.3 [hr] (West of Sun)\nMOON_POSTN:       179.56d {+11h 58m 15s}   -0.13d {-00d 07' 40\"}\nMOON_DIST:         70.77 [deg]\nGAL_COORDS:        12.40, 26.63 [deg] galactic lon,lat of the event\nECL_COORDS:       248.97, 17.70 [deg] ecliptic lon,lat of the event\nSKYMAP_FITS_URL:  https://roc.icecube.wisc.edu/public/hese_cascades/hese_60721_run00140500.evt000012724443.fits\nSKYMAP_PNG_URL:   https://roc.icecube.wisc.edu/public/hese_cascades/hese_60721_run00140500.evt000012724443.png\nCOMMENTS:         IceCube Cascade event.  \nCOMMENTS:         The position error is the combined statistical and the systematic.  \n",
                "published": "2025-02-15T11:10:31Z",
                "message_parser": "Icecube Notice Plaintext Parser v1",
                "retracted": false,
                "created": "2025-02-22T13:25:53.599539Z",
                "modified": "2025-02-22T13:25:53.604256Z"
            }
        },
        {
            "id": 8038,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181812,
                "topic": "igwn.gwalert",
                "uuid": "36b55eaa-5363-4116-9904-43a3f5dcb82f",
                "title": "S250222cu - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222cu/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222cu/view/"
                    },
                    "event": {
                        "far": 1.857543908267061e-05,
                        "time": "2025-02-22T13:05:45.072Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 175.62219526043668,
                        "area_90": 812.8558953870153,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.5213539472443225,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "a0d9924184e4fce3efae98f47f525cd8",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.002666162302939701,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9973338376970603
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-22T13:10:43Z",
                    "superevent_id": "S250222cu",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T13:10:44.797887Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T13:10:44.797935Z",
                "modified": "2025-02-22T13:10:44.807962Z"
            }
        },
        {
            "id": 8037,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181811,
                "topic": "igwn.gwalert",
                "uuid": "e460f3bd-8fc1-4b85-831e-72415003ebf2",
                "title": "S250222cu - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222cu/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222cu/view/"
                    },
                    "event": {
                        "far": 1.857543908267061e-05,
                        "time": "2025-02-22T13:05:45.076Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 255.30263570267186,
                        "area_90": 942.946410394746,
                        "duration": null,
                        "pipeline": "pycbc",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.5213539472443225,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "974d53fd5a0a17a6a38da2b2278e0d22",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.002666162302939728,
                            "NSBH": 0.0,
                            "Terrestrial": 0.9973338376970603
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-22T13:06:08Z",
                    "superevent_id": "S250222cu",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T13:06:10.137909Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T13:06:10.137954Z",
                "modified": "2025-02-22T13:06:10.149035Z"
            }
        },
        {
            "id": 8036,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181791,
                "topic": "igwn.gwalert",
                "uuid": "b2249f95-1e85-493e-9deb-8c79bffc98c3",
                "title": "S250222bx - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222bx/files/bayestar.multiorder.fits,1",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222bx/view/"
                    },
                    "event": {
                        "far": 7.217341073101643e-06,
                        "time": "2025-02-22T10:04:14.633Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 195.2406842172477,
                        "area_90": 847.6865816632785,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.09182106633065713,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "6286db603d45419dfd5eaa9782be8160",
                        "classification": {
                            "BBH": 0.15860788787379415,
                            "BNS": 1.1403002299697847e-16,
                            "NSBH": 7.229518057518478e-15,
                            "Terrestrial": 0.8413921121261985
                        },
                        "skymap_version": 1,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-22T10:09:12Z",
                    "superevent_id": "S250222bx",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T10:09:12.943966Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T10:09:12.944008Z",
                "modified": "2025-02-22T10:09:12.951871Z"
            }
        },
        {
            "id": 8035,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181790,
                "topic": "igwn.gwalert",
                "uuid": "39cd2c0d-d1a4-48de-ac13-3b43683d6458",
                "title": "S250222bx - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222bx/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222bx/view/"
                    },
                    "event": {
                        "far": 7.217341073101643e-06,
                        "time": "2025-02-22T10:04:14.634Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 197.33891833027565,
                        "area_90": 1036.527651835791,
                        "duration": null,
                        "pipeline": "gstlal",
                        "properties": {
                            "HasNS": 0.0,
                            "HasMassGap": 0.04025757426716506,
                            "HasRemnant": 0.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "186242146710bad7e3d082dc7b8a8b26",
                        "classification": {
                            "BBH": 0.15860788787379415,
                            "BNS": 1.1403002299697847e-16,
                            "NSBH": 7.229518057518478e-15,
                            "Terrestrial": 0.8413921121261985
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-22T10:04:37Z",
                    "superevent_id": "S250222bx",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T10:04:37.973564Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T10:04:37.973621Z",
                "modified": "2025-02-22T10:04:37.989467Z"
            }
        },
        {
            "id": 8034,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181785,
                "topic": "igwn.gwalert",
                "uuid": "79cb510c-7944-4346-be30-7447f63c2cb9",
                "title": "S250222bm - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222bm/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222bm/view/"
                    },
                    "event": {
                        "far": 1.291451e-05,
                        "time": "2025-02-22T09:11:07.928Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1041.3535902957556,
                        "area_90": 3002.1533689203443,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.4248520653220442,
                            "HasRemnant": 0.44343384337199815
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "0fc9fb855a22d1241df72795327a7a0e",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.00083037,
                            "NSBH": 0.000326217,
                            "Terrestrial": 0.998843414
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-22T09:16:11Z",
                    "superevent_id": "S250222bm",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T09:16:11.843734Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T09:16:11.843766Z",
                "modified": "2025-02-22T09:16:11.855334Z"
            }
        },
        {
            "id": 8033,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181784,
                "topic": "igwn.gwalert",
                "uuid": "01f8b897-d4a5-4256-9e43-8c5e1fba84f2",
                "title": "S250222bm - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222bm/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222bm/view/"
                    },
                    "event": {
                        "far": 1.291451e-05,
                        "time": "2025-02-22T09:11:07.928Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1041.3535902957556,
                        "area_90": 3002.1533689203443,
                        "duration": null,
                        "pipeline": "MBTA",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.4248520653220442,
                            "HasRemnant": 0.44343384337199815
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "0fc9fb855a22d1241df72795327a7a0e",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.00083037,
                            "NSBH": 0.000326217,
                            "Terrestrial": 0.998843414
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-22T09:11:36Z",
                    "superevent_id": "S250222bm",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T09:11:37.415651Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T09:11:37.415683Z",
                "modified": "2025-02-22T09:11:37.431519Z"
            }
        },
        {
            "id": 8032,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181720,
                "topic": "igwn.gwalert",
                "uuid": "4bbc0630-9a03-4662-9d2e-8c4f7954a9e3",
                "title": "S250222ai - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222ai/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222ai/view/"
                    },
                    "event": {
                        "far": 8.04308e-06,
                        "time": "2025-02-22T04:04:56.012Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 367.6106166024912,
                        "area_90": 4413.005986520316,
                        "duration": 0.032817,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "f1cb422bf49228f838c2282cb23f9485",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 1076.914307
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-22T04:12:26Z",
                    "superevent_id": "S250222ai",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T04:12:26.420120Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T04:12:26.420172Z",
                "modified": "2025-02-22T04:12:26.429138Z"
            }
        },
        {
            "id": 8031,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181719,
                "topic": "igwn.gwalert",
                "uuid": "a32cee11-5eae-494f-9faa-7ad2f4d45cd0",
                "title": "S250222ai - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222ai/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222ai/view/"
                    },
                    "event": {
                        "far": 8.04308e-06,
                        "time": "2025-02-22T04:04:56.012Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 367.6106166024912,
                        "area_90": 4413.005986520316,
                        "duration": 0.032817,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "f1cb422bf49228f838c2282cb23f9485",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 1076.914307
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-22T04:07:50Z",
                    "superevent_id": "S250222ai",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T04:07:51.821451Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T04:07:51.821500Z",
                "modified": "2025-02-22T04:07:51.829859Z"
            }
        },
        {
            "id": 8030,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181700,
                "topic": "igwn.gwalert",
                "uuid": "faf19ea3-19ff-44e7-976f-7cd8e57f1eb8",
                "title": "S250222u - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222u/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222u/view/"
                    },
                    "event": {
                        "far": 4.79473e-06,
                        "time": "2025-02-22T02:37:29.229Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 151.91214978322125,
                        "area_90": 618.5594165206301,
                        "duration": 0.008712,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "dceadade283f2c4bdbc037fa9a6c241a",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 362.219604
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-22T02:43:20Z",
                    "superevent_id": "S250222u",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T02:43:21.528013Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T02:43:21.528073Z",
                "modified": "2025-02-22T02:43:21.537549Z"
            }
        },
        {
            "id": 8029,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181699,
                "topic": "igwn.gwalert",
                "uuid": "bca76374-1848-4aaf-89dd-d982fe7127cc",
                "title": "S250222u - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250222u/files/cwb.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250222u/view/"
                    },
                    "event": {
                        "far": 4.79473e-06,
                        "time": "2025-02-22T02:37:29.229Z",
                        "group": "Burst",
                        "search": "AllSky",
                        "area_50": 151.91214978322125,
                        "area_90": 618.5594165206301,
                        "duration": 0.008712,
                        "pipeline": "CWB",
                        "properties": {},
                        "instruments": [
                            "H1",
                            "L1"
                        ],
                        "significant": false,
                        "skymap_hash": "dceadade283f2c4bdbc037fa9a6c241a",
                        "classification": {},
                        "skymap_version": 0,
                        "central_frequency": 362.219604
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-22T02:38:46Z",
                    "superevent_id": "S250222u",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-22T02:38:47.263419Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-22T02:38:47.263449Z",
                "modified": "2025-02-22T02:38:47.277481Z"
            }
        },
        {
            "id": 8028,
            "sequence_number": 2,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181654,
                "topic": "igwn.gwalert",
                "uuid": "8dc4aa38-483d-4228-9477-c0bb2edda20f",
                "title": "S250221gj - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250221gj/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250221gj/view/"
                    },
                    "event": {
                        "far": 7.187451046775095e-06,
                        "time": "2025-02-21T23:18:10.184Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1207.5337320475667,
                        "area_90": 15265.072819100706,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.022579365079365078,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "18f76c8a79bbf439522ab2acb2172c63",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.0031072138152570283,
                            "NSBH": 0.0013400740990590413,
                            "Terrestrial": 0.995552712085684
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 2,
                    "time_created": "2025-02-21T23:23:12Z",
                    "superevent_id": "S250221gj",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-21T23:23:12.971079Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-21T23:23:12.971110Z",
                "modified": "2025-02-21T23:23:12.977097Z"
            }
        },
        {
            "id": 8027,
            "sequence_number": 1,
            "sequence_type": "PRELIMINARY",
            "message": {
                "id": 181653,
                "topic": "igwn.gwalert",
                "uuid": "570f1b1a-031b-494f-b14e-4fe3adf187a5",
                "title": "S250221gj - PRELIMINARY",
                "submitter": "cody.messick-30d512c8",
                "authors": "LVK",
                "data": {
                    "urls": {
                        "skymap": "https://gracedb.ligo.org/api/superevents/S250221gj/files/bayestar.multiorder.fits,0",
                        "gracedb": "https://gracedb.ligo.org/superevents/S250221gj/view/"
                    },
                    "event": {
                        "far": 7.187451046775095e-06,
                        "time": "2025-02-21T23:18:10.184Z",
                        "group": "CBC",
                        "search": "AllSky",
                        "area_50": 1207.5337320475667,
                        "area_90": 15265.072819100706,
                        "duration": null,
                        "pipeline": "spiir",
                        "properties": {
                            "HasNS": 1.0,
                            "HasMassGap": 0.022579365079365078,
                            "HasRemnant": 1.0
                        },
                        "instruments": [
                            "H1",
                            "L1",
                            "V1"
                        ],
                        "significant": false,
                        "skymap_hash": "18f76c8a79bbf439522ab2acb2172c63",
                        "classification": {
                            "BBH": 0.0,
                            "BNS": 0.0031072138152570283,
                            "NSBH": 0.0013400740990590413,
                            "Terrestrial": 0.995552712085684
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2025-02-21T23:18:37Z",
                    "superevent_id": "S250221gj",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2025-02-21T23:18:37.814211Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2025-02-21T23:18:37.814241Z",
                "modified": "2025-02-21T23:18:37.830644Z"
            }
        },
        {
            "id": 8026,
            "sequence_number": 1,
            "sequence_type": "UPDATE",
            "message": {
                "id": 181587,
                "topic": "gcn.classic.text.ICECUBE_ASTROTRACK_BRONZE",
                "uuid": "9ba2ba4d-9bac-47de-9fa5-da5c6cc3a349",
                "title": "GCN/AMON NOTICE",
                "submitter": "",
                "authors": "",
                "data": {
                    "far": "1.4538 [yr^-1]",
                    "urls": {
                        "gcn": "https://gcn.gsfc.nasa.gov/notices_amon_g_b/140472_78196104.amon"
                    },
                    "title": "GCN/AMON NOTICE",
                    "energy": "1.5911e+02 [TeV]",
                    "src_ra": "132.9300d {+08h 51m 43s} (J2000),\n133.2900d {+08h 53m 10s} (current),\n132.2118d {+08h 48m 51s} (1950)",
                    "stream": "25",
                    "run_num": "140472",
                    "src_dec": "+20.6600d {+20d 39' 36\"} (J2000),\n+20.5645d {+20d 33' 52\"} (current),\n+20.8483d {+20d 50' 54\"} (1950)",
                    "comments": "IceCube Bronze event.\nThe position error is statistical only, there is no systematic added.",
                    "revision": "1",
                    "sun_dist": "170.50 [deg]   Sun_angle= -11.5 [hr] (East of Sun)",
                    "event_num": "78196104",
                    "moon_dist": "51.98 [deg]",
                    "src_error": "99.30 [arcmin radius, stat-only, 90% containment]",
                    "sun_postn": "321.47d {+21h 25m 53s}  -15.11d {-15d 06' 40\"}",
                    "ecl_coords": "129.65,  2.93 [deg] ecliptic lon,lat of the event",
                    "gal_coords": "205.88, 35.32 [deg] galactic lon,lat of the event",
                    "moon_postn": "76.35d {+05h 05m 25s}  +27.99d {+27d 59' 19\"}",
                    "signalness": "4.6806e-01 [dn]",
                    "notice_date": "Fri 07 Feb 25 13:52:11 UT",
                    "notice_type": "ICECUBE Astrotrack Bronze",
                    "src_error50": "50.99 [arcmin radius, stat-only, 50% containment]",
                    "discovery_date": "20713 TJD;    38 DOY;   25/02/07 (yy/mm/dd)",
                    "discovery_time": "7675 SOD {02:07:55.27} UT"
                },
                "message_text": "TITLE:            GCN/AMON NOTICE\nNOTICE_DATE:      Fri 07 Feb 25 13:52:11 UT\nNOTICE_TYPE:      ICECUBE Astrotrack Bronze \nSTREAM:           25\nRUN_NUM:          140472\nEVENT_NUM:        78196104\nSRC_RA:           132.9300d {+08h 51m 43s} (J2000),\n                  133.2900d {+08h 53m 10s} (current),\n                  132.2118d {+08h 48m 51s} (1950)\nSRC_DEC:          +20.6600d {+20d 39' 36\"} (J2000),\n                  +20.5645d {+20d 33' 52\"} (current),\n                  +20.8483d {+20d 50' 54\"} (1950)\nSRC_ERROR:        99.30 [arcmin radius, stat-only, 90% containment]\nSRC_ERROR50:      50.99 [arcmin radius, stat-only, 50% containment]\nDISCOVERY_DATE:   20713 TJD;    38 DOY;   25/02/07 (yy/mm/dd)\nDISCOVERY_TIME:   7675 SOD {02:07:55.27} UT\nREVISION:         1\nENERGY:           1.5911e+02 [TeV]\nSIGNALNESS:       4.6806e-01 [dn]\nFAR:              1.4538 [yr^-1]\nSUN_POSTN:        321.47d {+21h 25m 53s}  -15.11d {-15d 06' 40\"}\nSUN_DIST:         170.50 [deg]   Sun_angle= -11.5 [hr] (East of Sun)\nMOON_POSTN:        76.35d {+05h 05m 25s}  +27.99d {+27d 59' 19\"}\nMOON_DIST:         51.98 [deg]\nGAL_COORDS:       205.88, 35.32 [deg] galactic lon,lat of the event\nECL_COORDS:       129.65,  2.93 [deg] ecliptic lon,lat of the event\nCOMMENTS:         IceCube Bronze event.  \nCOMMENTS:         The position error is statistical only, there is no systematic added.  \n",
                "published": "2025-02-07T13:52:11Z",
                "message_parser": "Icecube Notice Plaintext Parser v1",
                "retracted": false,
                "created": "2025-02-21T19:07:04.948844Z",
                "modified": "2025-02-21T19:07:04.953274Z"
            }
        },
        {
            "id": 8025,
            "sequence_number": 0,
            "sequence_type": "INITIAL",
            "message": {
                "id": 181586,
                "topic": "gcn.classic.text.ICECUBE_ASTROTRACK_BRONZE",
                "uuid": "b6f75733-0452-4a1c-83c9-34a61212d968",
                "title": "GCN/AMON NOTICE",
                "submitter": "",
                "authors": "",
                "data": {
                    "far": "1.4538 [yr^-1]",
                    "urls": {
                        "gcn": "https://gcn.gsfc.nasa.gov/notices_amon_g_b/140472_78196104.amon"
                    },
                    "title": "GCN/AMON NOTICE",
                    "energy": "1.5911e+02 [TeV]",
                    "src_ra": "130.2648d {+08h 41m 04s} (J2000),\n130.6190d {+08h 42m 29s} (current),\n129.5585d {+08h 38m 14s} (1950)",
                    "stream": "25",
                    "run_num": "140472",
                    "src_dec": "+17.0426d {+17d 02' 33\"} (J2000),\n+16.9519d {+16d 57' 07\"} (current),\n+17.2212d {+17d 13' 16\"} (1950)",
                    "comments": "IceCube Bronze event.\nThe position error is statistical only, there is no systematic added.",
                    "revision": "0",
                    "sun_dist": "169.90 [deg]   Sun_angle= -11.3 [hr] (East of Sun)",
                    "event_num": "78196104",
                    "moon_dist": "57.60 [deg]",
                    "src_error": "266.14 [arcmin radius, stat-only, 90% containment]",
                    "sun_postn": "320.98d {+21h 23m 56s}  -15.26d {-15d 15' 52\"}",
                    "ecl_coords": "128.18, -1.22 [deg] ecliptic lon,lat of the event",
                    "gal_coords": "208.88, 31.69 [deg] galactic lon,lat of the event",
                    "moon_postn": "68.87d {+04h 35m 30s}  +27.05d {+27d 02' 42\"}",
                    "signalness": "4.6806e-01 [dn]",
                    "notice_date": "Fri 07 Feb 25 02:08:41 UT",
                    "notice_type": "ICECUBE Astrotrack Bronze",
                    "src_error50": "103.67 [arcmin radius, stat-only, 50% containment]",
                    "discovery_date": "20713 TJD;    38 DOY;   25/02/07 (yy/mm/dd)",
                    "discovery_time": "7675 SOD {02:07:55.27} UT"
                },
                "message_text": "TITLE:            GCN/AMON NOTICE\nNOTICE_DATE:      Fri 07 Feb 25 02:08:41 UT\nNOTICE_TYPE:      ICECUBE Astrotrack Bronze \nSTREAM:           25\nRUN_NUM:          140472\nEVENT_NUM:        78196104\nSRC_RA:           130.2648d {+08h 41m 04s} (J2000),\n                  130.6190d {+08h 42m 29s} (current),\n                  129.5585d {+08h 38m 14s} (1950)\nSRC_DEC:          +17.0426d {+17d 02' 33\"} (J2000),\n                  +16.9519d {+16d 57' 07\"} (current),\n                  +17.2212d {+17d 13' 16\"} (1950)\nSRC_ERROR:        266.14 [arcmin radius, stat-only, 90% containment]\nSRC_ERROR50:      103.67 [arcmin radius, stat-only, 50% containment]\nDISCOVERY_DATE:   20713 TJD;    38 DOY;   25/02/07 (yy/mm/dd)\nDISCOVERY_TIME:   7675 SOD {02:07:55.27} UT\nREVISION:         0\nENERGY:           1.5911e+02 [TeV]\nSIGNALNESS:       4.6806e-01 [dn]\nFAR:              1.4538 [yr^-1]\nSUN_POSTN:        320.98d {+21h 23m 56s}  -15.26d {-15d 15' 52\"}\nSUN_DIST:         169.90 [deg]   Sun_angle= -11.3 [hr] (East of Sun)\nMOON_POSTN:        68.87d {+04h 35m 30s}  +27.05d {+27d 02' 42\"}\nMOON_DIST:         57.60 [deg]\nGAL_COORDS:       208.88, 31.69 [deg] galactic lon,lat of the event\nECL_COORDS:       128.18, -1.22 [deg] ecliptic lon,lat of the event\nCOMMENTS:         IceCube Bronze event.  \nCOMMENTS:         The position error is statistical only, there is no systematic added.  \n",
                "published": "2025-02-07T02:08:41Z",
                "message_parser": "Icecube Notice Plaintext Parser v1",
                "retracted": false,
                "created": "2025-02-21T19:07:04.912050Z",
                "modified": "2025-02-21T19:07:04.916317Z"
            }
        }
    ]
}