{
  "bibcode": "2018GCN.23044....1V",
  "body": "P. Veres (UAH) reports on behalf of the Fermi GBM Team:\n\n\"At 14:15:28.81 UT on 27 July 2018, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 180727A (trigger 554393733 / 180727594)\nwhich was also detected by Swift (Beardmore et al., GCN 23043).\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 46 degrees.\n\nThe GBM light curve consists of a single pulse\nwith a duration (T90) of about 1.1 s (50-300 keV).\n\nThe time-averaged spectrum from T0-0.19 s to T0+0.83 s is\nbest fit by a power law function with an exponential\nhigh-energy cutoff.  The power law index is 0.14 +/- 0.28 and\nthe cutoff energy, parameterized as Epeak, is 69 +/- 4 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(3.32 +/- 0.18)E-7 erg/cm^2. The 64-msec peak photon flux measured\nstarting from T0+0.45 s in the 10-1000 keV band\nis 7.2 +/- 1.2 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": 23044,
  "createdOn": 1532719847000,
  "email": "veresp@gmail.com",
  "subject": "GRB 180727A: Fermi GBM observation",
  "submitter": "Peter Veres at UAH  <veresp@gmail.com>",
  "eventId": "GRB 180727A"
}