{
  "bibcode": "2009GCN..9627....1M",
  "body": "S. McBreen (UCD/MPE)\nreports on behalf of the Fermi GBM Team:\n\n\"At 05:47:48.18 UT on 04 July 2009, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 090704 (trigger 268379270 / 090704242)\nwhich was also detected by IBIS/ISGRI\n(Mereghetti et al. 2009, GCN 9620).\nThe GBM on-ground location is consistent with the ISGRI position.\nThe angle from the Fermi LAT boresight is 77 degrees.\n\nThe GBM light curve consists of one main pulse\nwith a duration (T90) of about 70 s (8-1000 keV).\nThe time-averaged spectrum from T0-0 s to T0+70 s is\nwell fit by a power law function with an exponential\nhigh energy cutoff.  The power law index is -1.13 (+0.07)\nand the cutoff energy, parameterized as Epeak,\nis 233.7 (+37.6/-28.5) keV (chi squared 358 for 365 d.o.f.).\n\nThe event fluence (8-1000 keV) in this time interval is\n(5.8 +/- 0.3)E-6 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+14.3 s in the 8-1000 keV band\nis  1.2 +/- 0.1 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog.\"",
  "circularId": 9627,
  "createdOn": 1247129195000,
  "email": "smcbreen@mpe.mpg.de",
  "subject": "GRB 090704: Fermi GBM observation",
  "submitter": "Sheila McBreen at MPE  <smcbreen@mpe.mpg.de>",
  "eventId": "GRB 090704"
}