{
  "bibcode": "2017GCN.21218....1H",
  "body": "R. Hamburg (UAH) and C. Meegan (UAH)\nreport on behalf of the Fermi GBM Team:\n\n\n\"At 23:17:59.57 UT on 07 June 2017, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 170607A (trigger 518570284 / 170607971),\nwhich was also detected by the Swift/BAT (D'Ai et al. 2017, GCN 21214).\nThe GBM on-ground location is consistent with the Swift position.\n\nThe angle from the Fermi LAT boresight at the GBM trigger time is 100 degrees.\n\nThe GBM light curve consists of a sharp peak\nwith a duration (T90) of about 23 s (50-300 keV).\nThe time-averaged spectrum from T0-2.4 s to T0+14.0 s is\nadequately fit by a power law function with an exponential\nhigh-energy cutoff. The power law index is -1.40 +/- 0.04 and\nthe cutoff energy, parameterized as Epeak, is 154 +/- 13 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(9.6 +/- 0.3)E-06 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+2.1 s in the 10-1000 keV band\nis 15.5 +/- 0.6 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": 21218,
  "createdOn": 1496912545000,
  "email": "Elisabetta.Bissaldi@uibk.ac.at",
  "subject": "GRB 170607A: Fermi GBM observation",
  "submitter": "Elisabetta Bissaldi at U.Innsbruk/IAPP  <Elisabetta.Bissaldi@uibk.ac.at>",
  "eventId": "GRB 170607A"
}