{
  "bibcode": "2010GCN.11500....1P",
  "body": "D. M. Palmer (LANL), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC),\nJ. R. Cummings (GSFC/UMBC), E. E. Fenimore (LANL), N. Gehrels (GSFC),\nH. A. Krimm (GSFC/USRA), C. B. Markwardt (GSFC), J. L. Racusin (NASA/GSFC),\nT. Sakamoto (GSFC/UMBC), G. Sato (ISAS), M. Stamatikos (OSU),\nJ. Tueller (GSFC), T. N. Ukwatta (GWU) (i.e. the Swift-BAT team):\n\nUsing the data set from T-131 to T+1366 sec from the recent telemetry downlink,\nwe report further analysis of Swift/BAT GRB 101225A (trigger #441015)\n(Racusin, et al., GCN Circ. 11493).  The BAT ground-calculated position is\nRA, Dec = 0.2037, +44.5739 deg which is\n   RA(J2000)  =  00h 00m 48.9s     Dec(J2000) = +44d 34' 26.0\"\nwith an uncertainty of 3.6 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 85%.\n\nThe mask-tagged light curve shows that the GRB entered the BAT field of view at\n~T-80 sec during a pre-planned slew.  The flux slowly declined after this point\nand then increased at about T+600 seconds.  There were less significant\nfluctuations until the end of the event data at about T+1300.  T90 (15-350 keV)\nis  1088.0 +- 20.0 sec (estimated error including systematics).\n\nThe time-averaged spectrum from T+0 to T+963 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n1.82 +- 0.32.  The fluence in the 15-150 keV band is 1.9 +- 0.4 x 10-6 erg/cm2.\nThe 1-sec peak photon flux measured from T+0.00 sec in the 15-150 keV band\nis 0.0 +- 0.0 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/441015/BA/",
  "circularId": 11500,
  "createdOn": 1293384001000,
  "email": "hans.a.krimm@nasa.gov",
  "subject": "GRB 101225A, Swift-BAT refined analysis",
  "submitter": "Hans Krimm at NASA-GSFC  <hans.a.krimm@nasa.gov>",
  "eventId": "GRB 101225A"
}