{
  "bibcode": "2011GCN.11771....1F",
  "body": "S. Foley (MPE)\nreports on behalf of the Fermi GBM Team:\n\n\"At 05:08:43.07 UT on 01 March 2011, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 110301A (trigger 320648925 / 110301214).\n\nThe on-ground calculated location, using the GBM trigger\ndata, is RA = 229.35, DEC = 29.40 (J2000 degrees,\nequivalent to 15 h 17 m 24 s, 29 d 24 ' 00\"), with an uncertainty\nof 1.0 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 94 degrees.\n\nGBM triggered an automatic repoint request to the Fermi\nObservatory to execute a maneuver following this trigger\nand track the burst location for the next 5 hours.\nHowever due to Earth-avoidance constraints, the slew did not\ncommence until ~40 minutes after the trigger.\n\nThe GBM light curve consists of a structured single pulse\nwith a duration (T90) of about 5 s (50-300 keV).\nThe time-averaged spectrum from T0+0.002 s to T0+5.824 s is\nbest fit by a Band function with Epeak = 106.80 (+1.85/-1.75) keV,\nalpha = -0.81 (+/-0.02), and beta = -2.70 (+0.04/-0.05).\n\nThe event fluence (10-1000 keV) in this time interval is\n(3.65 +/- 0.03)E-05 erg/cm^2. The 64-ms peak photon flux measured\nstarting from T0+3.97 s in the 10-1000 keV band\nis  125.73 +/- 3.47 ph/s/cm^2.\n\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog.\"",
  "circularId": 11771,
  "createdOn": 1299142607000,
  "email": "sfoley@mpe.mpg.de",
  "subject": "GRB 110301A: Fermi GBM detection",
  "submitter": "Suzanne Foley at MPE  <sfoley@mpe.mpg.de>",
  "eventId": "GRB 110301A"
}