{
  "bibcode": "2015GCN.18670....1U",
  "body": "T. N. Ukwatta (LANL), 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), F. E. Marshall (NASA/GSFC),D. M. Palmer (LANL),\nT. Sakamoto (AGU), M. Stamatikos (OSU), (i.e. the Swift-BAT team):\n\nUsing the data set from T-239 to T+963 sec from the recent telemetry downlink,\nwe report further analysis of BAT GRB 15120B (trigger #666378)\n(Marshall, et al., GCN Circ. 18659).  The BAT ground-calculated position is\nRA, Dec = 41.190, -43.461 deg which is\n    RA(J2000)  =  02h 44m 45.6s\n    Dec(J2000) = -43d 27' 39.8\"\nwith an uncertainty of 2.3 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 96%.\n\nThe mask-weighted light curve shows a single peak starting at T-2 sec\nwith total duration of ~5 seconds. The spacecraft slewed away from the\nburst location at about T+350 seconds. T90 (15-350 keV) is 1.4 +- 0.2 sec\n(estimated error including systematics).\n\nThe time-averaged spectrum from T-0.2 to T+1.3 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n1.74 +- 0.33.  The fluence in the 15-150 keV band is 7.7 +- 1.6 x 10^-8erg/cm2.\nThe 1-sec peak photon flux measured from T+0.25 sec in the 15-150 keV band\nis 0.7 +- 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/666378/BA/",
  "circularId": 18670,
  "createdOn": 1449421410000,
  "email": "hans.a.krimm@nasa.gov",
  "subject": "GRB 151205B, Swift-BAT refined analysis",
  "submitter": "Hans Krimm at NASA-GSFC  <hans.a.krimm@nasa.gov>",
  "eventId": "GRB 151205B"
}