{
  "bibcode": "2010GCN.10864....1S",
  "body": "M. Stamatikos (GSFC/ORAU), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC),\nJ. K. Cannizzo (NASA/UMBC), J. R. Cummings (GSFC/UMBC), E. E. Fenimore (LANL),\nN. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), C. B. Markwardt (GSFC/UMD),\nD. M. Palmer (LANL), A. M. Parsons (GSFC), T. Sakamoto (GSFC/UMBC),\nG. Sato (ISAS), J. Tueller (GSFC), T. N. Ukwatta (GWU)\n(i.e. the Swift-BAT team):\n \nUsing the data set from T-239 to T+963 sec from recent telemetry downlinks,\nwe report further analysis of BAT GRB 100619A (trigger #424998)\n(Cannizzo, et al., GCN Circ. 10863).  The BAT ground-calculated position is\nRA, Dec = 84.618, -27.012 deg which is \n   RA(J2000)  =  05h 38m 28.3s \n   Dec(J2000) = -27d 00' 42.2\" \nwith an uncertainty of 1.0 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 75%.\n \nThe mask-weighted light curve shows two well separated peaks.  The first\ns compsed of several overlapping pulses which starts at ~T-3 sec, peaks at\n~T_10 sec, and returns to background at ~T+20 sec.  The second peak starts\n~T+55 sec, peaks at ~T=85 sec, and ends at ~T+120 sec.  T90 (15-350 keV)\nis 97.5 +- 3 sec (estimated error including systematics).\n \nThe time-averaged spectrum from T-2.9 to T+105.7 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n1.83 +- 0.06.  The fluence in the 15-150 keV band is 4.5 +- 0.1 x 10^-6 erg/cm2.\nThe 1-sec peak photon flux measured from T+87.22 sec in the 15-150 keV band\nis 4.8 +- 0.2 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/424998/BA/",
  "circularId": 10864,
  "createdOn": 1276942330000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 100619A: Swift-BAT refined analysis",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 100619A"
}