ALERT:
  alert_type: PRELIMINARY
  event:
    central_frequency: 179.611832
    classification: {}
    duration: 0.010637
    far: 1.87922e-05
    group: Burst
    instruments:
    - H1
    - L1
    pipeline: CWB
    properties: {}
    search: AllSky
    significant: false
    time: '2023-10-21T04:56:57.600Z'
  superevent_id: S231021ag
  time_created: '2023-10-21T05:04:41Z'
  urls:
    gracedb: https://gracedb.ligo.org/superevents/S231021ag/view/
EXTRA:
  area10: 36.929
  area50: 253.467
  area90: 865.312
  central coordinate:
    equatorial: 61.630435 -55.873350
    galactic: 266.331583 -44.954119
HEADER:
  COORDSYS: C
  CREATOR: CWB
  DATE: '2023-10-21T04:59:38.000000'
  DATE-OBS: '2023-10-21T04:56:57.600000'
  INDXSCHM: EXPLICIT
  INSTRUME: H1,L1
  MJD-OBS: 60238.20622222222
  MOCORDER: 6
  OBJECT: G447929
  ORDERING: NUNIQ
  ORIGIN: LIGO/Virgo/KAGRA
  PIXTYPE: HEALPIX
