{
  "bibcode": "2007GCN..6792....1T",
  "body": "J. Tueller (GSFC), L. Barbier (GSFC), S. D. Barthelmy (GSFC),\nJ. Cummings (GSFC/UMBC), E. Fenimore (LANL), N. Gehrels (GSFC),\nH. Krimm (GSFC/USRA), C. Markwardt (GSFC/UMD), D. Palmer (LANL),\nT. Sakamoto (GSFC/ORAU), G. Sato (GSFC/ISAS), M. Stamatikos (GSFC/ORAU),\nT. Ukwatta (GWU)\n(i.e. the Swift-BAT team):\n \nUsing the data set from T-120 to T+129 sec from the recent telemetry downlink,\nwe report further analysis of BAT GRB 070917 (trigger #291292)\n(Cummings, et al., GCN Circ. 6791).  The BAT ground-calculated position is\nRA, Dec = 293.923, 2.420 deg which is \n   RA(J2000)  = 19h 35m 41.5s \n   Dec(J2000) = 02d 25' 12\" \nwith an uncertainty of 1.0 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 79%.\n \nThe mask-weighted lightcurve starts at ~T-5 sec, has a sharp rise from\nT-0.1 sec to ~T+0.3 sec, peaks at ~T+0.4 sec, and then approximately\nexponentially decays to background at ~T+30 sec.\nT90 (15-350 keV) is 7.3 +- 0.2 sec (estimated error including systematics).\n \nThe time-averaged spectrum from T-0.1 to T+11.4 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n1.52 +- 0.05.  The fluence in the 15-150 keV band is 2.0 +- 0.1 x 10^-6 erg/cm2.\nThe 1-sec peak photon flux measured from T+0.21 sec in the 15-150 keV band\nis 8.5 +- 0.3 ph/cm2/sec.  All the quoted errors are at the 90% confidence\nlevel.",
  "circularId": 6792,
  "createdOn": 1190039658000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 070917, Swift-BAT refined analysis",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 070917"
}