ALERT:
  alert_type: PRELIMINARY
  event:
    central_frequency: 55.016563
    classification: {}
    duration: 0.010487
    far: 1.9421e-05
    group: Burst
    instruments:
    - H1
    - L1
    pipeline: CWB
    properties: {}
    search: BBH
    significant: false
    time: '2023-07-21T22:26:34.820Z'
  superevent_id: S230721aj
  time_created: '2023-07-21T22:27:34Z'
  urls:
    gracedb: https://gracedb.ligo.org/superevents/S230721aj/view/
EXTRA:
  area10: 203.109
  area50: 1447.782
  area90: 5098.709
  central coordinate:
    equatorial: 186.328125 34.228866
    galactic: 159.656508 80.951234
HEADER:
  COORDSYS: C
  CREATOR: CWB
  DATE: '2023-07-21T22:26:57.000000'
  DATE-OBS: '2023-07-21T22:26:34.800000'
  INDXSCHM: EXPLICIT
  INSTRUME: H1,L1
  MJD-OBS: 60146.935125
  MOCORDER: 6
  OBJECT: G418797
  ORDERING: NUNIQ
  ORIGIN: LIGO/Virgo/KAGRA
  PIXTYPE: HEALPIX
