{
  "bibcode": "2007GCN..6681....1S",
  "body": "G. Sato (GSFC/ISAS), L. Barbier (GSFC), S. D. Barthelmy (GSFC),\nJ. Cummings (GSFC/UMBC), E. Fenimore (LANL), N. Gehrels (GSFC),\nC. Guidorzi (U.Bicocca&INAF-OAB), H. Krimm (GSFC/USRA),\nC. Markwardt (GSFC/UMD), D. Palmer (LANL), A. Parsons (GSFC),\nT. Sakamoto (GSFC/ORAU), M. Stamatikos (GSFC/ORAU), J. Tueller (GSFC),\nT. Ukwatta (GWU)\n(i.e. the Swift-BAT team):\n \nUsing the data set from T-239 to T+963 sec from recent telemetry downlinks,\nwe report further analysis of BAT GRB 070729 (trigger #286373)\n(Guidorzi, et al., GCN Circ. 6678).  The BAT ground-calculated position is\nRA, Dec = 56.296, -39.330 deg  which is \n   RA(J2000)  =   3h 45m 11.1s \n   Dec(J2000) = -39d 19' 47\" \nwith an uncertainty of 2.2 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 65%.\n \nThe mask-weighted light curve shows two overlaping peaks starting at ~T-0.2 sec,\npeaking at ~T+0.2 and ~T+0.8 sec, and ending at ~T+1.2 sec.\nT90 (15-350 keV) is 0.9 +- 0.1 sec (estimated error including systematics).\n \nThe time-averaged spectrum from T-0.1 to T+1.1 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n0.96 +- 0.27.  The fluence in the 15-150 keV band is 1.0 +- 0.2 x 10^-7 erg/cm2.\nThe 1-sec peak photon flux measured from T+0.03 sec in the 15-150 keV band\nis 1.0 +- 0.2 ph/cm2/sec.  All the quoted errors are at the 90% confidence\nlevel.",
  "circularId": 6681,
  "createdOn": 1185715109000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 070729, Swift-BAT refined analysis",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 070729"
}