{
  "bibcode": "2018GCN.23078....1H",
  "body": "R. Hamburg (UAH), A. von Kienlin (MPE), and C. Meegan (UAH)\nreport on behalf of the Fermi GBM Team:\n\n\"At 13:02:36.52 UT on 05 August 2018, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 180805B (trigger 555166961 / 180805543)\nwhich was also detected by the Swift BAT and XRT instruments\n(D'Avanzo et al. 2018, GCN 23076). The GBM on-ground location is consistent\nwith the Swift position.\n\nThe angle from the Fermi LAT boresight at the GBM trigger time is 64\ndegrees.\n\nThe GBM light curve shows a single peak\nwith a duration (T90) of about 1 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 -0.5 +/- 0.2 and\nthe cutoff energy, parameterized as Epeak, is 346 +/- 75 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(5.9 +/- 0.7)E-07 erg/cm^2. The 64-ms peak photon flux measured\nstarting from T0+0.06 s in the 10-1000 keV band\nis 8.3 +/- 1.1 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog.\"",
  "circularId": 23078,
  "createdOn": 1533506847000,
  "email": "rkh0007@uah.edu",
  "subject": "GRB 180805B: Fermi GBM detection",
  "submitter": "Rachel Hamburg at UAH  <rkh0007@uah.edu>",
  "eventId": "GRB 180805B"
}