{
    "event_id": "S250327u",
    "alert_type": "PRELIMINARY",
    "event_time": "2025-03-27 01:53:31",
    "before_fromdate": "2024-12-27 01:53:31",
    "before_todate": "2025-03-27 01:53:31",
    "after_fromdate": "2025-03-27 01:53:31",
    "after_todate": "2025-04-10 00:03:22",
    "last_processed_datetime": "2025-04-10 00:03:22",
    "public": "1",
    "zip_file": "S250327u_20250327_015331.zip",
    "current_json": "S250327u_20250327_015331.json",
    "json_object_list_before": "S250327u_20250327_015331_BEFORE.json",
    "json_object_list_after": "S250327u_20250327_015331_AFTER.json",
    "tsv_object_list_before": "S250327u_20250327_015331_BEFORE.tsv",
    "tsv_object_list_after": "S250327u_20250327_015331_AFTER.tsv",
    "png_object_list_before": "S250327u_20250327_015331_BEFORE.png",
    "png_object_list_after": "S250327u_20250327_015331_AFTER.png",
    "event_page": "https://gracedb.ligo.org/superevents/S250327u/view/",
    "instruments": "H1, L1, V1",
    "far": "3.215059029877508e-07",
    "group": "CBC",
    "skymap_fits": "S250327u_20250327_015331.fits",
    "prob_bns": "0.0",
    "prob_nsbh": "0.0037267788240067136",
    "prob_bbh": "0.6311570911964267",
    "prob_mass_gap": "0.0075",
    "prob_terrestrial": "0.36511612997956655",
    "prob_has_ns": "0.0",
    "prob_has_remnant": "0.0",
    "distmean": "2060.714365220917",
    "diststd": "604.3513332998906",
    "significance": "high"
}