{
  "bibcode": "2012GCN.13785....1R",
  "body": "Arne Rau (MPE) reports on behalf of the Fermi GBM Team:\n\n\"At 07:24:41.98  UT on 19 September 2012, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 120919A (trigger 369732284 / 120919309).\n\nThe on-ground calculated location, using the GBM trigger\ndata, is RA = 213.4, DEC = -46.3 (J2000 degrees,\nequivalent to 14 h 14 m, -46 d 18 '), with an uncertainty\nof 1.1 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 63 degrees.\nMoreover, this burst was bright enough to result in a Fermi spacecraft\nautonomous re-point request (ARR) maneuver.\n\nThis burst was also independently detected by INTEGRAL SPI-ACS.\n\nThe GBM light curve shows a single bright pulse\nwith a duration (T90) of about 22.5 s (50-300 keV).\nThe time-averaged spectrum from T0+0.003 s to T0+10.496 s is\nbest fit by a Band function with Epeak = 162 +/- 8 keV,\nalpha = -0.76 +/- 0.04, and beta = -2.15 +/- 0.06\n\nThe event fluence (10-1000 keV) in this time interval is\n(1.679 +/- 0.026)E-05 erg/cm^2. The 1.024-sec peak photon flux measured\nstarting from T0+2.62 s in the 10-1000 keV band\nis 25.3 +/- 0.3 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog.\"\n\n[GCN OPS NOTE(20sep12):  Per author's request, the fluence value\nwas changed from \"(1.60 +/- 0.03)E-06\" to \"(1.679 +/- 0.026)E-05\".]",
  "circularId": 13785,
  "createdOn": 1348138928000,
  "email": "arau@mpe.mpg.de",
  "subject": "GRB 120919A: Fermi GBM detection",
  "submitter": "Arne Rau at MPE  <arau@mpe.mpg.de>",
  "eventId": "GRB 120919A"
}