{
  "bibcode": "2012GCN.13581....1B",
  "body": "W. H. Baumgartner (GSFC/UMBC), S. D. Barthelmy (GSFC), J. R. Cummings (GSFC/UMBC),\nE. E. Fenimore (LANL), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA),\nA. Y. Lien (NASA/GSFC/ORAU), C. B. Markwardt (GSFC), D. M. Palmer (LANL),\nT. Sakamoto (GSFC/UMBC), G. Sato (ISAS), M. Stamatikos (OSU),\nJ. Tueller (GSFC), T. N. Ukwatta (MSU)\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 120804A (trigger #529686)\n(Lien, et al., GCN Circ. 13573).  The BAT ground-calculated position is\nRA, Dec = 233.951, -28.768 deg, which is \n   RA(J2000)  =  15h 35m 48.1s \n   Dec(J2000) = -28d 46' 06.1\" \nwith an uncertainty of 1.0 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 24%.\n \nThe mask-weighted light curve shows two overlapping peaks starting\nat ~T-0.2 sec, peaking at ~T+0.1 and ~T+0.5 sec, and ending at ~T+1.0 sec.\nT90 (15-350 keV) is 0.81 +- 0.08 sec (estimated error including systematics).\n \nThe time-averaged spectrum from T-0.16 to T+0.83 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n1.34 +- 0.08.  The fluence in the 15-150 keV band is 8.8 +- 0.5 x 10^-7 erg/cm2.\nThe 1-sec peak photon flux measured from T-0.16 sec in the 15-150 keV band\nis 10.8 +- 0.6 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/529686/BA/",
  "circularId": 13581,
  "createdOn": 1344086444000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 120804A: Swift-BAT refined analysis",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 120804A"
}