GCN Alert: Messaggio GCN inviato alle 2025-07-01 13:03:31: S250701at Most probable sky…

{
    "alert_type": "PRELIMINARY",
    "time_created": "2025-07-01T11:03:29Z",
    "superevent_id": "S250701at",
    "urls": {
        "gracedb": "https://gracedb.ligo.org/superevents/S250701at/view/"
    },
    "event": {
        "significant": false,
        "time": "2025-07-01T11:03:03.668Z",
        "far": 1.236489475627365e-5,
        "instruments": [
            "H1",
            "L1"
        ],
        "group": "CBC",
        "pipeline": "gstlal",
        "search": "AllSky",
        "properties": {
            "HasNS": 0,
            "HasRemnant": 0,
            "HasMassGap": 0.005275362318840579
        },
        "classification": {
            "BBH": 0.09117255701796452,
            "BNS": 9.335858918886139e-14,
            "NSBH": 6.360321351609145e-12,
            "Terrestrial": 0.9088274429755818
        },
        "duration": null,
        "central_frequency": null
    },
    "external_coinc": null
}