{
  "bibcode": "2011GCN.11776....1C",
  "body": "J. R. Cummings (GSFC/UMBC), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC),\nN. Gehrels (GSFC), D. Grupe (PSU), H. A. Krimm (GSFC/USRA),\nC. B. Markwardt (GSFC), D. M. Palmer (LANL), T. Sakamoto (GSFC/UMBC),\nM. Stamatikos (OSU), J. Tueller (GSFC), T. N. Ukwatta (MSU)\n(i.e. the Swift-BAT team):\n \nUsing the data set from T-61 to T+242 sec from the recent telemetry downlink,\nwe report further analysis of BAT GRB 110305A (trigger #448229)\n(Grupe, et al., GCN Circ. 11773).  The BAT ground-calculated position is\nRA, Dec = 260.877, -15.810 deg which is \n   RA(J2000)  =  17h 23m 30.4s \n   Dec(J2000) = -15d 48' 37.6\" \nwith an uncertainty of 1.9 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 22%.\n \nThe mask-weighted light curve shows a single pulse starting at ~T-1 sec and\nending at ~T+12 sec.  T90 (15-350 keV) is 12.0 +- 2.2 sec (estimated error\nincluding systematics).\n \nThe time-averaged spectrum from T-0.9 to T+12.1 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n1.62 +- 0.19.  The fluence in the 15-150 keV band is 8.0 +- 1.0 x 10^-07 erg/cm2.\nThe 1-sec peak photon flux measured from T+6.06 sec in the 15-150 keV band\nis 1.2 +- 0.3 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/448229/BA/",
  "circularId": 11776,
  "createdOn": 1299335043000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 110305A: Swift-BAT refined analysis",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 110305A"
}