A.L.S.A. - GCN Alert: Messaggio GCN inviato alle 2025-12-17 21:08:22:MS251217u Most probable sky location…

🧪 Messaggio GCN inviato alle 2025-12-17 21:08:22:MS251217u

Most probable sky location (RA, Dec) = (240.94005449591285, 55.9689161768052)

Distance = 121.50693747335598 +/- 35.762103498817616
🌐 Apri su GraceDB

📦 Dettagli JSON
{
    "alert_type": "PRELIMINARY",
    "time_created": "2025-12-17T20:08:16Z",
    "superevent_id": "MS251217u",
    "urls": {
        "gracedb": "https://gracedb.ligo.org/superevents/MS251217u/view/"
    },
    "event": {
        "significant": true,
        "time": "2025-12-17T20:02:42.016Z",
        "far": 9.110699364861297e-14,
        "instruments": [
            "H1",
            "L1"
        ],
        "group": "CBC",
        "pipeline": "gstlal",
        "search": "MDC",
        "properties": {
            "HasNS": 1,
            "HasRemnant": 1,
            "HasMassGap": 0
        },
        "classification": {
            "BNS": 0.9999957061497328,
            "NSBH": 0,
            "BBH": 0,
            "Terrestrial": 4.293850267302958e-6
        },
        "duration": null,
        "central_frequency": null
    },
    "external_coinc": null
}

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