{
  "bibcode": "2010GCN.10338....1M",
  "body": "C. B. Markwardt (GSFC/UMD), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC),\nJ. R. Cummings (GSFC/UMBC), M. De Pasquale (UCL-MSSL), E. E. Fenimore (LANL),\nN. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), D. M. Palmer (LANL),\nT. Sakamoto (GSFC/UMBC), M. Stamatikos (GSFC/ORAU), J. Tueller (GSFC),\nT. N. Ukwatta (GWU)\n(i.e. the Swift-BAT team):\n \nUsing the data set from T-239 to T+484 sec from the recent telemetry downlink,\nwe report further analysis of BAT GRB 100117A (trigger #382941)\n(De Pasquale, et al., GCN Circ. 10336).  The BAT ground-calculated position is\nRA, Dec = 11.280, -1.586 deg which is \n   RA(J2000)  =  00h 45m 07.1s \n   Dec(J2000) = -01d 35' 11.1\" \nwith an uncertainty of 1.7 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 66%.\n \nThe mask-weighted light curve shows a single peak starting at T+0.0 and ending\nat T+0.4 sec.  T90 (15-350 keV) is 0.3 +- 0.05 sec (estimated error including\nsystematics).\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\n0.88 +- 0.22.  The fluence in the 15-150 keV band is 9.3 +- 1.3 x 10^-8 erg/cm2.\nThe 1-sec peak photon flux measured from T-0.35 sec in the 15-150 keV band\nis 2.9 +- 0.4 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/382941/BA/",
  "circularId": 10338,
  "createdOn": 1263771929000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 100117A: Swift-BAT refined analysis",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 100117A"
}