{
  "bibcode": "2010GCN.10397....1G",
  "body": "David Gruber (MPE)\nreports on behalf of the Fermi GBM Team:\n\n\"At 11:45:38.26 UT on 05 February 2010, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 100205B (trigger 287063140 / 100205490).\n\nThe on-ground calculated location, using the GBM trigger\ndata, is RA = 133.9, DEC = -23.0 (J2000 degrees,\nequivalent to 08h 55m, 23d 00'), with an uncertainty\nof 8.2 degrees (radius, 1-sigma containment,\nstatistical only; there is additionally a systematic\nerror which is currently estimated to be 2 to 3 degrees).\n\nThe angle from the Fermi LAT boresight is 102 degrees.\n\nThe GBM light curve consists of a single pulse\nwith a duration (T90) of about 13.6 +/- 1.6s (8-1000 keV).\nThe time-averaged spectrum from T0-1.024s to T0+7.168 s is\nbest fit by a power law function with an exponential\nhigh energy cutoff. The power law index is -0.47 (+0.20/-0.19) and\nthe cutoff energy, parameterized as Epeak, is 124.20 (+16.0/-12.2)keV\n(c-stat 468.61 for 349 d.o.f.).\n\nThe event fluence (8-1000 keV) in this time interval is\n(1.410 +/-  0.082)E-6 erg/cm^2. The 1.024-sec peak photon flux measured\nstarting from T0 in the 8-1000 keV band\nis 2.98 +/- 0.22 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog.\"",
  "circularId": 10397,
  "createdOn": 1265566833000,
  "email": "dgruber@mpe.mpg.de",
  "subject": "GRB 100205B: Fermi GBM detection",
  "submitter": "David Gruber at MPE  <dgruber@mpe.mpg.de>",
  "eventId": "GRB 100205B"
}