{
  "bibcode": "2010GCN.10993....1S",
  "body": "T. Sakamoto (GSFC/UMBC), 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/UMD), D. M. Palmer (LANL), 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-240 to T+609 sec from recent telemetry downlinks,\nwe report further analysis of BAT GRB 100725B (trigger #429969)\n(Baumgartner, et al., GCN Circ. 10983).  The BAT ground-calculated position is\nRA, Dec = 290.029, 76.955 deg, which is \n   RA(J2000)  =  19h 20m 07.0s \n   Dec(J2000) = +76d 57' 17.6\" \nwith an uncertainty of 1.2 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 28%.\n \nThe mask-weighted light curve shows several peaks starting at ~T-10 sec, peaking\nat ~T+10, T+60, T+90, T+130, and T+220 sec, and ending at ~T+240 sec.\nT90 (15-350 keV) is 200 +- 30 sec (estimated error including systematics).\n \nThe time-averaged spectrum from T-4.8 to T+226.1 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n1.89 +- 0.06.  The fluence in the 15-150 keV band is 6.8 +- 0.2 x 10^-6 erg/cm2.\nThe 1-sec peak photon flux measured from T+132.41 sec in the 15-150 keV band\nis 2.4 +- 0.1 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/429969/BA/",
  "circularId": 10993,
  "createdOn": 1280147833000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 100725B: Swift-BAT refined analysis",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 100725B"
}