{
  "bibcode": "2018GCN.23548....1V",
  "body": "P. Veres (UAH) and E. Bissaldi (Politecnico & INFN Bari)\nreport on behalf of the Fermi GBM Team:\n\n\"At 06:41:34.25 UT on 22 December 2018, the Fermi Gamma-Ray Burst\nMonitor triggered\nand located GRB 181222A (trigger 567153699 / 181222279) which was also\ndetected by MAXI/GSC\n(Sakamaki et al., GCN 23547). The GBM on-ground location is consistent with\nthe MAXI position.\n\n\nThe angle from the Fermi LAT boresight at the GBM trigger time is 89\ndegrees.\n\n\nThe GBM light curve shows four separate pulses\nwith a duration (T90) of about 131 s (50-300 keV).\nThe time-averaged spectrum from T0-1 s to T0+151 s is\nadequately fit by a Band function with Epeak = 264 +/- 32 keV,\nalpha = -0.95 +/- 0.04, and beta = -1.47 +/- 0.01.\n\nThe event fluence (10-1000 keV) in this time interval is\n(1.83 +/- 0.01)E-4 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+94.9 s in the 10-1000 keV band\nis 74.7 +/- 0.7 ph/s/cm^2.\n\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog.\"",
  "circularId": 23548,
  "createdOn": 1545500272000,
  "email": "veresp@gmail.com",
  "subject": "GRB 181222A: Fermi GBM observation",
  "submitter": "Peter Veres at UAH  <veresp@gmail.com>",
  "eventId": "GRB 181222A"
}