{
  "bibcode": "2011GCN.12504....1P",
  "body": "D. M. Palmer (LANL), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC),\nJ. R. Cummings (GSFC/UMBC), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA),\nC. B. Markwardt (GSFC), T. Sakamoto (GSFC/UMBC), M. Stamatikos (OSU),\nE. Troja (NASA/GSFC/ORAU), T. N. Ukwatta (MSU)\n(i.e. the Swift-BAT team):\n \nUsing the data set from T-60 to T+243 sec from recent telemetry downlinks,\nwe report further analysis of BAT GRB 111029A (trigger #506519)\n(Troja, et al., GCN Circ. 12498).  The BAT ground-calculated position is\nRA, Dec = 44.785, 57.101 deg, which is \n   RA(J2000)  =  02h 59m 08.4s \n   Dec(J2000) = +57d 06' 02.9\" \nwith an uncertainty of 1.2 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 75%.\n \nThe mask-weighted light curve shows 2 or 3 overlapping peaks starting\nat ~T+15 and ending at ~T=35 sec.  T90 (15-350 keV) is 7.6 +- 1.1 sec\n(estimated error including systematics).\n \nThe time-averaged spectrum from T+19.60 to T+28.92 sec is best fit by a power law\nwith an exponential cutoff.  This fit gives a photon index 0.77 +- 0.71, \nand Epeak of 36.2 +- 5.7 keV (chi squared 39.5 for 56 d.o.f.).  For this\nmodel the total fluence in the 15-150 keV band is 3.9 +- 0.4 x 10^-7 erg/cm2\nand the 1-sec peak flux measured from T+23.62 sec in the 15-150 keV band is\n1.5 +- 0.2 ph/cm2/sec.  A fit to a simple power law gives a photon index\nof 2.11 +- 0.13 (chi squared 53.6 for 57 d.o.f.).  All the quoted errors\nare at the 90% confidence level. \n \nThe results of the batgrbproduct analysis are available at\nhttp://gcn.gsfc.nasa.gov/notices_s/506519/BA/",
  "circularId": 12504,
  "createdOn": 1319904710000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 111029A: Swift-BAT refined analysis",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 111029A"
}