{
  "bibcode": "2018GCN.22897....1P",
  "body": "S.Poolakkil and C. Meegan (both UAH) report on\nbehalf of the Fermi GBM Team:\n\n\"At 22:46:51.32 UT on 03 July 2018, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 180703B (trigger 552350816/ 180703949),\nwhich was also detected by the Fermi LAT (Racusin et al. 2018, GCN 22884).\nThe GBM on-ground location is consistent with the LAT position.\n\nThe angle from the Fermi LAT boresight\nat the GBM trigger time is 31 degrees.\n\nThe GBM light curve shows two peaks\nwith a duration (T90) of about 1.6 s (50-300 keV).\nThe time-averaged spectrum from T0-0.1 s to T0+2.4 s is\nbest fit by a power law function with an exponential\nhigh-energy cutoff.  The power law index is -0.79 +/- 0.03 and\nthe cutoff energy, parameterized as Epeak, is 138 +/- 3 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(8.281 +/- 0.119)E-06 erg/cm^2. The 64-ms peak photon flux measured\nstarting from T0+1.21 s in the 10-1000 keV band\nis 103.9 +/- 2.92 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog.\"",
  "circularId": 22897,
  "createdOn": 1530723632000,
  "email": "sp0076@uah.edu",
  "subject": "GRB 180703B: Fermi GBM detection",
  "submitter": "Suraj Poolakkil at UAH  <sp0076@uah.edu>",
  "eventId": "GRB 180703B"
}