{
  "bibcode": "2013GCN.15584....1S",
  "body": "T. Sakamoto (AGU), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC),\nJ. R. Cummings (GSFC/UMBC), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA),\nA. Y. Lien (NASA/UMBC), C. B. Markwardt (GSFC), D. M. Palmer (LANL),\nM. Stamatikos (OSU), J. Tueller (GSFC), T. N. Ukwatta (MSU)\n(i.e. the Swift-BAT team):\n \nUsing the data set from T-239 to T+771 sec from the recent telemetry downlink,\nwe report further analysis of BAT GRB 131205A (trigger #580267)\n(Ukwatta, et al., GCN Circ. 15578).  The BAT ground-calculated position is\nRA, Dec = 131.573, -60.181 deg which is \n   RA(J2000)  =  08h 46m 17.6s \n   Dec(J2000) = -60d 10' 51.5\" \nwith an uncertainty of 2.8 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 95%.\n \nThe mask-weighted light curves two peaks starting at ~T-5, peaking at ~T+1,\nand ending at ~T+5 sec, and the second peak from ~T+18 to ~T+22 sec.\nT90 (15-350 keV) is 37.5 +- 9.6 sec (estimated error including systematics).\n \nThe time-averaged spectrum from T-18.50 to T+20.41 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n1.57 +- 0.38.  The fluence in the 15-150 keV band is 2.9 +- 0.7 x 10^-07 erg/cm2.\nThe 1-sec peak photon flux measured from T+19.30 sec in the 15-150 keV band\nis 0.6 +- 0.1 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/580267/BA/",
  "circularId": 15584,
  "createdOn": 1386281479000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 131205A: Swift-BAT refined analysis",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 131205A"
}