GCN Alert: Messaggio GCN inviato alle 2025-06-19 10:33:20: S250619y Most probable sky…

{
    "alert_type": "PRELIMINARY",
    "time_created": "2025-06-19T08:33:14Z",
    "superevent_id": "S250619y",
    "urls": {
        "gracedb": "https://gracedb.ligo.org/superevents/S250619y/view/"
    },
    "event": {
        "significant": false,
        "time": "2025-06-19T08:32:52.051Z",
        "far": 9.829172462049513e-6,
        "instruments": [
            "H1",
            "L1"
        ],
        "group": "CBC",
        "pipeline": "gstlal",
        "search": "AllSky",
        "properties": {
            "HasNS": 0,
            "HasRemnant": 0,
            "HasMassGap": 0.019888637932116194
        },
        "classification": {
            "BBH": 0.11708509267136605,
            "BNS": 6.908242677051497e-15,
            "NSBH": 4.962870318767764e-13,
            "Terrestrial": 0.8829149073281307
        },
        "duration": null,
        "central_frequency": null
    },
    "external_coinc": null
}