GCN Alert: Messaggio GCN inviato alle 2025-08-20 08:17:52:S250820ae Most probable sky location…

{
    "alert_type": "PRELIMINARY",
    "time_created": "2025-08-20T06:17:50Z",
    "superevent_id": "S250820ae",
    "urls": {
        "gracedb": "https://gracedb.ligo.org/superevents/S250820ae/view/"
    },
    "event": {
        "significant": false,
        "time": "2025-08-20T06:12:44.358Z",
        "far": 1.619407811847169e-5,
        "instruments": [
            "H1",
            "L1",
            "V1"
        ],
        "group": "CBC",
        "pipeline": "pycbc",
        "search": "AllSky",
        "properties": {
            "HasNS": 1,
            "HasRemnant": 0.9501943267509226,
            "HasMassGap": 0.05980945747936139
        },
        "classification": {
            "BNS": 0.0007309549450176707,
            "NSBH": 0.0005982271202420002,
            "BBH": 0,
            "Terrestrial": 0.9986708179347403
        },
        "duration": null,
        "central_frequency": null
    },
    "external_coinc": null
}