GCN Alert: Messaggio GCN inviato alle 2025-06-23 02:06:21: S250623a Most probable sky…

{
    "alert_type": "PRELIMINARY",
    "time_created": "2025-06-23T00:06:16Z",
    "superevent_id": "S250623a",
    "urls": {
        "gracedb": "https://gracedb.ligo.org/superevents/S250623a/view/"
    },
    "event": {
        "significant": false,
        "time": "2025-06-23T00:01:13.043Z",
        "far": 1.151022808154571e-5,
        "instruments": [
            "H1",
            "L1",
            "V1"
        ],
        "group": "CBC",
        "pipeline": "pycbc",
        "search": "AllSky",
        "properties": {
            "HasNS": 1,
            "HasRemnant": 0.005072578545991542,
            "HasMassGap": 0.7600232700451395
        },
        "classification": {
            "BNS": 0.0005992163413776383,
            "NSBH": 0.001048855020555374,
            "BBH": 0,
            "Terrestrial": 0.998351928638067
        },
        "duration": null,
        "central_frequency": null
    },
    "external_coinc": null
}