{
  "bibcode": "2007GCN..6417....1K",
  "body": "H. Krimm (GSFC/USRA), L. Barbier (GSFC), S. D. Barthelmy (GSFC),\nJ. Cummings (GSFC/UMBC), E. Fenimore (LANL), N. Gehrels (GSFC),\nC. Guidorzi (Univ Bicocca&INAF-OAB), C. Markwardt (GSFC/UMD),\nD. Palmer (LANL), A. Parsons (GSFC), T. Sakamoto (GSFC/ORAU),\nG. Sato (GSFC/ISAS), M. Stamatikos (GSFC/ORAU), J. Tueller (GSFC)\non behalf of the Swift-BAT team:\n \nUsing the data set from T-119 to T+183 sec from recent telemetry downlinks,\nwe report further analysis of BAT GRB 070518 (trigger #279592)\n(Guidorzi, et al., GCN Circ. 6415).  The BAT ground-calculated position is\nRA, Dec = 254.221, 55.285 deg  which is \n   RA(J2000)  = 16h 56m 52.9s \n   Dec(J2000) = 55d 17'  5.6\" \nwith an uncertainty of 1.8 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 84%.\n \nThe mask-weighted lightcurves shows a single peak starting a ~T-5 sec\nand ending at ~T+10 sec.  T90 (15-350 keV) is 5.5 +- 0.2 sec\n(estimated error including systematics).\n \nThe time-averaged spectrum from T-1.8 to T+4.5 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n2.11 +- 0.25.  The fluence in the 15-150 keV band is 1.6 +- 0.2 x 10^-7 erg/cm2.\nThe 1-sec peak photon flux measured from T+0.12 sec in the 15-150 keV band\nis 0.7 +- 0.1 ph/cm2/sec.  All the quoted errors are at the 90% confidence\nlevel.",
  "circularId": 6417,
  "createdOn": 1179524184000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 070518, Swift-BAT refined analysis",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 070518"
}