{
  "bibcode": "2015GCN.18683....1B",
  "body": "S. D. Barthelmy (GSFC), J. R. Cummings (GSFC/UMBC), P. A. Evans (U Leicester),\nN. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), A. Y. Lien (GSFC/UMBC),\nC. B. Markwardt (GSFC), D. M. Palmer (LANL), T. Sakamoto (AGU),\nM. Stamatikos (OSU), T. N. Ukwatta (LANL)\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 151210A (trigger #666931)\n(Evans, et al., GCN Circ. 18678).  The BAT ground-calculated position is\nRA, Dec = 65.080, -71.225 deg, which is \n   RA(J2000)  =  04h 20m 19.1s \n   Dec(J2000) = -71d 13' 28.9\" \nwith an uncertainty of 1.8 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 60%.\n \nThe mask-weighted light curve shows several peaks starting at ~T-55 sec,\nwith the brightest peaks at ~T+14 and ~T+38 sec, and ending at ~T+60sec.\nT90 (15-350 keV) is 94.9 +- 10.4 sec (estimated error including systematics).\n \nThe time-averaged spectrum from T-57.19 to T+48.36 sec is best fit by a power law\nwith an exponential cutoff.  This fit gives a photon index 0.82 +- 0.79, \nand Epeak of 49.4 +- 15.3 keV (chi squared 53.7 for 56 d.o.f.).  For this\nmodel the total fluence in the 15-150 keV band is 1.3 +- 0.2 x 10^-6 erg/cm2\nand the 1-sec peak flux measured from T+38.82 sec in the 15-150 keV band is\n0.8 +- 0.2 ph/cm2/sec.  A fit to a simple power law gives a photon index\nof 1.83 +- 0.15 (chi squared 59.89 for 57 d.o.f.).  All the quoted errors\nare at the 90% confidence level. \n \nThe results of the batgrbproduct analysis are available at\nhttp://gcn.gsfc.nasa.gov/notices_s/666931/BA/",
  "circularId": 18683,
  "createdOn": 1449756532000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 151210A: Swift-BAT refined analysis",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 151210A"
}