{
  "bibcode": "2015GCN.18368....1S",
  "body": "T. Sakamoto (AGU), S. D. Barthelmy (GSFC), J. R. Cummings (GSFC/UMBC),\nN. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), A. Y. Lien (GSFC/UMBC),\nC. B. Markwardt (GSFC), D. M. Palmer (LANL), J. L. Racusin (NASA/GSFC),\nM. Stamatikos (OSU), T. N. Ukwatta (LANL) (i.e. the Swift-BAT team):\n \nUsing the data set from T-239 to T+963 sec from the recent telemetry downlinks,\nwe report further analysis of BAT GRB 150925A (trigger #656604)\n(Racusin, et al., GCN Circ. 18365).  The BAT ground-calculated position is\nRA, Dec = 227.538, -19.640 deg, which is \n   RA(J2000)  =  15h 10m 09.0s \n   Dec(J2000) = -19d 38' 22.3\" \nwith an uncertainty of 2.0 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 56%.\n \nThe mask-weighted light curve show several overlapping peaks starting at ~T-0,\npeaking at ~T+25 sec, and ending at ~T+180 sec.  T90 (15-350 keV) is\n121 +- 27 sec (estimated error including systematics).\n \nThe time-averaged spectrum from T+3.51 to T+149.61 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n2.19 +- 0.20.  The fluence in the 15-150 keV band is 1.4 +- 0.2 x 10^-6 erg/cm2.\nThe 1-sec peak photon flux measured from T+30.68 sec in the 15-150 keV band\nis 0.6 +- 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/656604/BA/",
  "circularId": 18368,
  "createdOn": 1443199583000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 150925A: Swift-BAT refined analysis",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 150925A"
}