GCN Alert: Messaggio GCN inviato alle 2025-07-19 00:28:56:S250718ej Most probable sky location…

{
    "alert_type": "PRELIMINARY",
    "time_created": "2025-07-18T22:28:49Z",
    "superevent_id": "S250718ej",
    "urls": {
        "gracedb": "https://gracedb.ligo.org/superevents/S250718ej/view/"
    },
    "event": {
        "significant": false,
        "time": "2025-07-18T22:28:25.109Z",
        "far": 1.133886385148031e-5,
        "instruments": [
            "H1",
            "L1",
            "V1"
        ],
        "group": "CBC",
        "pipeline": "pycbc",
        "search": "AllSky",
        "properties": {
            "HasNS": 0.8364495094058664,
            "HasRemnant": 0.01067755459748332,
            "HasMassGap": 0.2428715772568916
        },
        "classification": {
            "BNS": 0,
            "NSBH": 0.0025275098950337214,
            "BBH": 0.0011194560206603658,
            "Terrestrial": 0.9963530340843059
        },
        "duration": null,
        "central_frequency": null
    },
    "external_coinc": null
}