{
  "bibcode": "2008GCN..8067....1M",
  "body": "C. Markwardt (GSFC/UMD), S. D. Barthelmy (GSFC), W. Baumgartner (GSFC/UMBC),\nJ. Cummings (GSFC/UMBC), E. Fenimore (LANL), N. Gehrels (GSFC),\nH. Krimm (GSFC/USRA), K. McLean (GSFC/UMD), D. Palmer (LANL),\nJ. L. Racusin (PSU), T. Sakamoto (GSFC/UMBC), G. Sato (ISAS),\nM. Stamatikos (GSFC/ORAU), J. Tueller (GSFC), T. Ukwatta (GWU)\n(i.e. the Swift-BAT team):\n \nUsing the data set from T-240 to T+962 sec from recent telemetry downlinks,\nwe report further analysis of BAT GRB 080804 (trigger #319016)\n(Racusin, et al., GCN Circ. 8057).  The BAT ground-calculated position is\nRA, Dec = 328.675, -53.189 deg which is \n   RA(J2000)  =  21h 54m 41.9s \n   Dec(J2000) = -53d 11' 20.2\" \nwith an uncertainty of 1.2 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 19%.\n \nThe mask-weighted light curve shows the main peak starting at ~T-10sec,\npeaking at ~T+2 sec, and ending at ~T+100 sec.  T90 (15-350 keV) is\n34 +- 16 sec (estimated error including systematics).\n \nThe time-averaged spectrum from T-0.4 to T+62.8 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n1.19 +- 0.09.  The fluence in the 15-150 keV band is 3.6 +- 0.2 x 10^-6 erg/cm2.\nThe 1-sec peak photon flux measured from T+1.57 sec in the 15-150 keV band\nis 3.1 +- 0.4 ph/cm2/sec.  All the quoted errors are at the 90% confidence\nlevel. \n \nThe results of the batgrbproduct analysis are available at\nhttp://gcn.gsfc.nasa.gov/notices_s/319016/BA/",
  "circularId": 8067,
  "createdOn": 1217951686000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 080804, Swift-BAT refined analysis",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 080804"
}