{
  "bibcode": "2018GCN.23135....1V",
  "body": "A. von Kienlin (MPE), R. Hamburg (UAH), and C. Meegan (UAH)\nreport on behalf of the Fermi GBM Team:\n\n\n\"At 08:22:30.31 UT on 12 August 2018, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 180812A (trigger 555754955 / 180812349),\nwhich was also detected by the Swift BAT and XRT instruments (Lien et al.\n2008, GCN 23129). The GBM on-ground location is consistent with the Swift\nposition.\n\nThe angle from the Fermi LAT boresight at the GBM trigger time is 46\ndegrees.\n\nThe GBM light curve shows several peaks with a duration (T90) of about 38 s\n(50-300 keV). The time-averaged spectrum from T0-2.0 s to T0+34.8 s is\nadequately fit by a power law function with an exponential high-energy\ncutoff.\nThe power law index is -0.56 +/- 0.36 and the cutoff energy, parameterized\nas Epeak, is 110 +/- 25 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(1.2 +/- 0.2)E-06 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+15.7 s in the 10-1000 keV band\nis 2.5 +/- 0.2 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog.\"",
  "circularId": 23135,
  "createdOn": 1534107126000,
  "email": "rkh0007@uah.edu",
  "subject": "GRB 180812A: Fermi GBM detection",
  "submitter": "Rachel Hamburg at UAH  <rkh0007@uah.edu>",
  "eventId": "GRB 180812A"
}