{
  "bibcode": "2022GCN.32964....1V",
  "body": "P. Veres and C. Meegan (both UAH)\nreport on behalf of the Fermi GBM Team:\n\n\"At 21:29:27.85 UT on 20 November 2022, the Fermi Gamma-Ray Burst Monitor (GBM)\ntriggered and located GRB 221120A (trigger 690672572 / 221120895)\nwhich was also detected by the Swift/BAT (Eyles-Ferris et al., GCN 32955).\nThe GBM on-ground location is consistent with the Swift position.\n\n\nThe angle from the Fermi LAT boresight at the GBM trigger time is 62 degrees.\n\n\nThe GBM light curve consists of two pulses\nwith a duration (T90) of about 0.64 s (50-300 keV).\nThe time-averaged spectrum from T0-0.13 s to T0+0.58 s is\nbest fit by a power law function with an exponential\nhigh-energy cutoff.  The power law index is 0.11 +/- 0.31 and\nthe cutoff energy, parameterized as Epeak, is 379 +/- 65 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(7.8 +/- 0.9)E-7 erg/cm^2. The 64 ms peak photon flux measured\nstarting from T0+0.38 s in the 10-1000 keV band\nis 7.45 +/- 0.91 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog:\nhttps://heasarc.gsfc.nasa.gov/W3Browse/fermi/fermigbrst.html\n\nFor Fermi GBM data and info, please visit the official Fermi GBM Support Page:\nhttps://fermi.gsfc.nasa.gov/ssc/data/access/gbm/\"",
  "circularId": 32964,
  "createdOn": 1669043714000,
  "email": "veresp@gmail.com",
  "subject": "GRB 221120A: Fermi GBM observation",
  "submitter": "Peter Veres at UAH  <veresp@gmail.com>",
  "eventId": "GRB 221120A"
}