{
  "bibcode": "2013GCN.15477....1Y",
  "body": "G. Younes (USRA/NASA-MSFC) reports on behalf of the Fermi GBM Team:\n\nAt 20:41:55.76 UT on 08 November 2013, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 131108A (trigger 405636118/131108862), which also\ntriggered onboard the Fermi/LAT (Racusin et al, GCN 15464). The GBM on-ground\nlocation is consistent with the Swift/XRT location of the candidate afterglow\n(M. C. Stroh and J. A. Kennea, GCN 15468).\n\nThe burst was bright enough that it also resulted in an Autonomous Repoint Request (ARR).\n\nThe GBM light curve consists of a multiple-peak structure with a duration\n(T90) of about 19 s (50-300 keV). The time-averaged spectrum from\nT0 to T0+21 s is adequately fit by a Band function with Epeak =\n373 +/- 14 keV, alpha = -0.91 +/- 0.02, and beta = -2.6 +/- 0.1.\n\nThe event fluence (10-1000 keV) in this time interval is\n(3.65 +/- 0.04)E-05  erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+0.1 s in the 10-1000 keV band is 19.8 +/- 0.4 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog.",
  "circularId": 15477,
  "createdOn": 1384019457000,
  "email": "younes.ge@gmail.com",
  "subject": "GRB 131108A: Fermi GBM observation",
  "submitter": "George A. Younes at USRA/NASA/MSFC  <younes.ge@gmail.com>",
  "eventId": "GRB 131108A"
}