{
  "bibcode": "2013GCN.15175....1X",
  "body": "Shaolin Xiong (UAH) and Charles Meegan (UAH)\nreport on behalf of the Fermi GBM Team:\n\n\"At 00:47:32.37 UT on 03 September 2013, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 130903A (trigger 399862055 / 130903033),\nwhich was also detected by the INTEGRAL (Mereghetti et al., GCN 15169) and\nSwift/XRT (Grupe et al., GCN 15173).\nThe GBM on-ground location is consistent with the INTEGRAL and Swift position.\nThe angle from the Fermi LAT boresight is 33 degrees.\n\nThe GBM light curve consists of multiple pulses\nwith a duration (T90) of about 69 +/- 7 s (50-300 keV).\nThe time-averaged spectrum from T0-2 s to T0+68 s is\nwell fit by a power law function with an exponential\nhigh-energy cutoff. The power law index is -0.70 +/- 0.27 and\nthe cutoff energy, parameterized as Epeak, is 41 +/- 3 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(2.0 +/- 0.1)E-6 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+0.22 s in the 10-1000 keV band\nis 1.3 +/- 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": 15175,
  "createdOn": 1378267931000,
  "email": "sx0002@uah.edu",
  "subject": "GRB 130903A: Fermi GBM observation",
  "submitter": "Shaolin Xiong at UAH  <sx0002@uah.edu>",
  "eventId": "GRB 130903A"
}