{
  "bibcode": "2009GCN.10164....1B",
  "body": "M. S. Briggs (UAH) reports on behalf of the Fermi GBM Team:\n\n\"At 17:41:15.82 UT on 12 Nov 2009, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 091112 (trigger 279740477 / 091112.737),\nwhich was also detected by the SWIFT-BAT (V. Mangano et al., GCN 10162)\nThe GBM on-ground location is consistent with the Swift position.\nThe angle from the Fermi LAT boresight is 82 degrees.\n\nThe GBM light curve consists primarily of a broad peak, and\nhas a duration of about 40 seconds.  \n \nThe time-averaged spectrum from T0-0.512 s to T0+24.064 s is\nbest fit by a power law function with an exponential\nhigh energy cutoff.  The power law index is -1.13 +/- 0.04 and\nthe cutoff energy, parameterized as Epeak, is 750 +/- 120 keV.\nC-Stat = 717 for 483 degrees of freedom.\n\nThe event fluence (10-1000 keV) in this time interval is\n(9.7 +/- 0.3)E-6 erg/cm^2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog.\"",
  "circularId": 10164,
  "createdOn": 1258072238000,
  "email": "michael.briggs@nasa.gov",
  "subject": "GRB 091112: Fermi GBM observation",
  "submitter": "Michael S. Briggs at UAH and MSFC  <michael.briggs@nasa.gov>",
  "eventId": "GRB 091112"
}