{
  "bibcode": "2010GCN.10501....1B",
  "body": "W. H. Baumgartner (GSFC/UMBC), S. D. Barthelmy (GSFC), J. R. Cummings (GSFC/UMBC),\nN. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), C. B. Markwardt (GSFC/UMD),\nD. M. Palmer (LANL), T. Sakamoto (GSFC/UMBC), M. Stamatikos (GSFC/ORAU),\nJ. Tueller (GSFC), T. N. Ukwatta (GWU)\n(i.e. the Swift-BAT team):\n \nUsing the data set from T-60 to T+243 sec from the recent telemetry downlink,\nwe report further analysis of BAT GRB 100316A (trigger #416076)\n(Baumgartner, et al., GCN Circ. 10484).  The BAT ground-calculated position is\nRA, Dec = 251.953, 71.819 deg which is \n   RA(J2000)  =  16h 47m 48.8s \n   Dec(J2000) = +71d 49' 09.5\" \nwith an uncertainty of 1.7 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 16%.\n \nThe mask-weighted light curve shows a FRED-like pulse starting at ~T-1 sec,\npeaking at ~t+2 sec, and ending at ~T+20 sec.  T90 (15-350 keV) is\n7.0 +- 0.9 sec (estimated error including systematics).\n \nThe time-averaged spectrum from T-1.2 to T+6.7 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n1.46 +- 0.18.  The fluence in the 15-150 keV band is 8.2 +- 0.9 x 10^-7 erg/cm2.\nThe 1-sec peak photon flux measured from T+1.94 sec in the 15-150 keV band\nis 2.3 +- 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/416076/BA/",
  "circularId": 10501,
  "createdOn": 1268755432000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 100316A: Swift-BAT refined analysis",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 100316A"
}