{
  "bibcode": "2011GCN.12133....1C",
  "body": "V. Connaughton (UAH) reports on behalf of the Fermi GBM Team:\n\n\"At 15:24:27.37 UT on 09 July 2011, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 110709A (trigger 331917869 / 110709642),\nwhich was also detected by the Swift/BAT (Holland et al. 2011,\nGCN 12118) and the Swift/XRT (Evans et al. 2011,  GCN 12119).\nThe GBM on-ground location is consistent with the Swift position.\n\nThe angle from the Fermi LAT boresight at trigger time was 54 degrees.\nApproximately 6 - 200 s from trigger time, the Fermi spacecraft executed\nan automatic maneuver in response to a command from GBM, in\norder to place the burst closer to the LAT boresight, and observed\nthis position for the following 2.5 hours, subject to Earth limb\nconstraints.\n\nThe GBM light curve shows several bright peaks from trigger time\nto 50-s post-trigger, with a duration (t90) of 43.5 s (50-300 keV).\nThe time-averaged spectrum from T0-4.096 s to T0+62.5 s is\nbest fit by a power law function with an exponential\nhigh-energy cutoff.  The power law index is -1.16 +/- 0.02 and\nthe cutoff energy, parametrized as Epeak, is 533 +/- 37 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(4.43 +/- 0.07)E-5 erg/cm^2. The 64 ms peak photon flux measured\nstarting from T0+25.28 s in the 10-1000 keV band\nis 15.4 +/- 1.7 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog.\"",
  "circularId": 12133,
  "createdOn": 1310267570000,
  "email": "valerie.connaughton@nasa.gov",
  "subject": "GRB 110709A: Fermi GBM observation",
  "submitter": "Valerie Connaughton at UAH/NSSTC  <valerie.connaughton@nasa.gov>",
  "eventId": "GRB 110709A"
}