ALERT:
  alert_type: PRELIMINARY
  event:
    central_frequency: 131.690659
    classification: {}
    duration: 0.02614
    far: 5.75968e-06
    group: Burst
    instruments:
    - H1
    - L1
    pipeline: CWB
    properties: {}
    search: BBH
    significant: false
    time: '2023-07-21T22:36:19.582Z'
  superevent_id: S230721ak
  time_created: '2023-07-21T22:42:09Z'
  urls:
    gracedb: https://gracedb.ligo.org/superevents/S230721ak/view/
EXTRA:
  area10: 54.554
  area50: 360.057
  area90: 1121.296
  central coordinate:
    equatorial: 17.578125 -32.797168
    galactic: 268.289383 -83.012957
HEADER:
  COORDSYS: C
  CREATOR: CWB
  DATE: '2023-07-21T22:36:57.000000'
  DATE-OBS: '2023-07-21T22:36:19.550000'
  INDXSCHM: EXPLICIT
  INSTRUME: H1,L1
  MJD-OBS: 60146.94189293982
  MOCORDER: 6
  OBJECT: G418798
  ORDERING: NUNIQ
  ORIGIN: LIGO/Virgo/KAGRA
  PIXTYPE: HEALPIX
