{
  "bibcode": "2018GCN.22328....1V",
  "body": "P. Veres (UAH) reports on behalf of the Fermi GBM Team:\n\n\"At 02:47:06.14 UT on 13 January 2018, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 180113A (trigger 537504431 / 180113116).\nwhich was also detected by the Swift/BAT (Ukwatta et al., GCN 22325).\nThe GBM on-ground location is consistent with the Swift position.\n\nThe trigger resulted in an Autonomous Repoint Request (ARR)\nby the GBM Flight Software owing to the high peak flux\nof the GRB. This ARR was accepted and the spacecraft slewed to the GBM in-flight\nlocation. The initial angle from the Fermi LAT boresight to\nthe best location is 51 degrees.\n\nThe GBM light curve shows overlapping peaks\nwith a duration (T90) of about 11 s (50-300 keV).\nThe time-averaged spectrum from T0-1.4 s to T0+15.0 s is\nbest fit by a Band function with Epeak = 247 +/- 12 keV,\nalpha = -0.59 +/- 0.04, and beta = -2.32 +/- 0.10.\n\nThe event fluence (10-1000 keV) in this time interval is\n(1.007 +/- 0.012)E-5 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+0.45 s in the 10-1000 keV band\nis 9.3 +/- 0.3 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog.\"",
  "circularId": 22328,
  "createdOn": 1515865519000,
  "email": "veresp@gmail.com",
  "subject": "GRB 180113A: Fermi GBM observation",
  "submitter": "Peter Veres at UAH  <veresp@gmail.com>",
  "eventId": "GRB 180113A"
}