ALERT:
  alert_type: PRELIMINARY
  event:
    central_frequency: null
    classification:
      BBH: 0.0
      BNS: 0.0
      NSBH: 0.0
      Terrestrial: 1.0
    duration: null
    far: 6.605429e-06
    group: CBC
    instruments:
    - H1
    - L1
    - V1
    pipeline: MBTA
    properties:
      HasMassGap: 0.9273765790877969
      HasNS: 1.0
      HasRemnant: 0.0
    search: AllSky
    significant: false
    time: '2024-04-21T01:16:42.440Z'
  superevent_id: S240421k
  time_created: '2024-04-21T01:17:17Z'
  urls:
    gracedb: https://gracedb.ligo.org/superevents/S240421k/view/
EXTRA:
  area10: 65.78
  area50: 501.058
  area90: 1963.947
  central coordinate:
    equatorial: 309.347826 -51.449458
    galactic: 347.347624 -37.155944
HEADER:
  COORDSYS: C
  CREATOR: BAYESTAR
  DATE: '2024-04-21T01:17:08.000000'
  DATE-OBS: '2024-04-21T01:16:42.440482'
  DISTMEAN: 585.880550608273
  DISTSTD: 171.47467257322361
  INDXSCHM: EXPLICIT
  INSTRUME: H1,L1,V1
  LOGBCI: 7.9753901042205815
  LOGBSN: 9.829800978494374
  MJD-OBS: 60421.05326898706
  MOC: true
  MOCORDER: 8
  OBJECT: G476243
  ORDERING: NUNIQ
  ORIGIN: LIGO/Virgo/KAGRA
  PIXTYPE: HEALPIX
  REFERENC: https://gracedb.ligo.org/events/G476243
  RUNTIME: 2.162758476973977
  VCSVERS: ligo.skymap 1.1.2
