{
  "bibcode": "2014GCN.16768....1P",
  "body": "D. M. Palmer (LANL), S. D. Barthelmy (GSFC),  W. H. Baumgartner (GSFC/UMBC),\nJ. R. Cummings, N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA),\nA. Y. Lien (GSFC/UMBC), C. B. Markwardt (GSFC), T. Sakamoto (AGU),\nM. Stamatikos (OSU), J. Tueller (GSFC), T. N. Ukwatta (LANL)\n(i.e. the Swift-BAT team):\n  \nUsing the data set from T-61 to T+159 sec from the recent telemetry downlink,\nwe report further analysis of BAT GRB 140903A (trigger #611599)\n(Cummings, et al., GCN Circ. 16763).  The BAT ground-calculated position is\nRA, Dec = 238.021, 27.608 deg which is\n    RA(J2000)  =  15h 52m 05.0s\n    Dec(J2000) = +27d 36' 27.6\"\nwith an uncertainty of 1.0 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 83%.\n  \nThe mask-weighted light curve shows a single FRED peak.  T90 (15-350 keV) is\n0.30 +- 0.03 sec (estimated error including systematics).\n  \nThe time-averaged spectrum from T-0.01 to T+0.35 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n1.99 +- 0.12.  The fluence in the 15-150 keV band is 1.4 +- 0.1 x 10^-07 erg/cm2.\nThe 1-sec peak photon flux measured from T-0.33 sec in the 15-150 keV band\nis 2.5 +- 0.2 ph/cm2/sec.  All the quoted errors are at the 90% confidence\nlevel.\n\nThis burst was short but we note that it was not particularly hard.\n  \nThe results of the batgrbproduct analysis are available at\nhttp://gcn.gsfc.nasa.gov/notices_s/611599/BA/",
  "circularId": 16768,
  "createdOn": 1409794428000,
  "email": "james.r.cummings@nasa.gov",
  "subject": "GRB 140903A: Swift-BAT refined analysis",
  "submitter": "Jay R. Cummings at NASA/GSFC/Swift  <james.r.cummings@nasa.gov>",
  "eventId": "GRB 140903A"
}