{
  "$schema": "https://gcn.nasa.gov/schema/v7.2.1/gcn/notices/maxi/gsc.unknown.schema.json",
  "mission": "MAXI",
  "instrument": "GSC",
  "alert_datetime": "2026-10-28T18:19:04Z",
  "alert_type": "update",
  "alert_tense": "current",
  "trigger_time": "2026-10-28T16:32:53Z",
  "id": "1341573661",
  "ra": 242.313,
  "dec": -48.743,
  "rectangular_error_corners": [
    [
      241.444,
      -48.32
    ],
    [
      241.257,
      -48.634
    ],
    [
      243.442,
      -49.179
    ],
    [
      243.617,
      -48.861
    ]
  ],
  "containment_probability": 0.9,
  "systematic_included": false,
  "flux": 4.5e-09,
  "flux_error": 4.8e-10,
  "event_name": "GRB 261028A / MAXI J1609-487",
  "detection_timescale": 1.0,
  "detection_timescale_units": "orbit",
  "flux_spectral_band": [
    4.0,
    10.0
  ],
  "flux_spectral_unit": "keV",
  "latitude": 14.39,
  "longitude": -117.51,
  "record_number": 2
}