{
  "bibcode": "2007GCN..7071....1F",
  "body": "E. Fenimore (LANL), S. D. Barthelmy (GSFC), J. Cummings (GSFC/UMBC),\nN. Gehrels (GSFC), H. Krimm (GSFC/USRA), C. Markwardt (GSFC/UMD),\nD. Palmer (LANL), A. Parsons (GSFC), M. Perri (ASDC),\nT. Sakamoto (GSFC/UMBC), G. Sato (GSFC/ISAS), M. Stamatikos (GSFC/ORAU),\nJ. Tueller (GSFC), T. Ukwatta (GWU)\n(i.e. the Swift-BAT team):\n \nUsing the data set from T-120 to T+182 sec from the recent telemetry downlink,\nwe report further analysis of BAT GRB 071112 (trigger #296503)\n(Perri, et al., GCN Circ. 7058).  The BAT ground-calculated position is\nRA, Dec = 260.213, -80.884 deg, which is \n   RA(J2000)  =  17h 20m 51.0s \n   Dec(J2000) = -80d 53' 02\" \nwith an uncertainty of 2.2 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 78%.\n \nThe mask-weighted light curve shows two separated narrow peaks.  The first\nstarts at T-0.7 sec and has a total width of ~64 msec.  The second\nstarts at T+0.0 sec, peaks at T+0.1 sec, and ends at 0.3 sec.\nT90 (15-350 keV) is 0.30 +- 0.05 sec (estimated error including systematics).\n \nThe time-averaged spectrum from T-0.0 to T+0.3 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n0.69 +- 0.34.  The fluence in the 15-150 keV band is 4.8 +- 0.9 x 10^-8 erg/cm2.\nThe 1-sec peak photon flux measured from T-0.38 sec in the 15-150 keV band\nis 1.3 +- 0.3 ph/cm2/sec.  All the quoted errors are at the 90% confidence\nlevel. \n\nThe automated script processing has generated fluence and spectral numbers\nfor the second peak only.  Since there seems to be urgent need in the \ncommunity, we are pushing this circular out the door quickly so that at\nleast these partial (second peak only) values are available to the \nfollow-up community.  By eye, the first peak appears to have a fluence\none third that of the second peak.  Also by eye, there appears to be no\nextended emission for this SHB out to at least T+180 sec and to a flux\nlevel ~0.007 counts/cm2/sec.",
  "circularId": 7071,
  "createdOn": 1194912375000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 071112B, Swift-BAT partial refined analysis of the SHB",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 071112B"
}