{
  "bibcode": "2013GCN.14232....1C",
  "body": "J. R. Cummings (GSFC/UMBC), S. D. Barthelmy (GSFC),\nW. H. Baumgartner (GSFC/UMBC), E. E. Fenimore (LANL), N. Gehrels (GSFC),\nH. A. Krimm (GSFC/USRA), A. Y. Lien (NASA/GSFC/ORAU), C. B. Markwardt (GSFC),\nD. M. Palmer (LANL), T. Sakamoto (AGU), G. Sato (ISAS),\nM. Stamatikos (OSU), J. Tueller (GSFC), T. N. Ukwatta (MSU)\n(i.e. the Swift-BAT team):\n  \nUsing the data set from T-0 to T+10 sec, we report further analysis of BAT\nGRB 130216B (trigger #548918) (Cummings, GCN Circ. 14226).  The BAT ground-\ncalculated position is RA, Dec 58.866, +2.036, which is:\nRA (J2000)   03h 55m 27.9s\nDec (J2000)  02d 02m 10s\nwith an uncertainty of 1.5 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 11%.\n  \nThe mask-weighted light curve shows two peaks, the smaller from T+0 to T+2 and\nthe larger from T+2 to T+4.  Each is symmetrical in time.  T90 (15-350 keV) is\n3.7 +- 0.5 sec (estimated error including systematics).\n  \nThe time-averaged spectrum from T+0 to T+4 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n1.77 +- 0.08.  The fluence in the 15-150 keV band is 1.3 +- 0.3 x 10^-6  erg/cm2.\nThe 1-sec peak photon flux measured from T+2.5 sec in the 15-150 keV band\nis 7.4 +- 0.6 ph/cm2/sec.  All the quoted errors are at the 90% confidence\nlevel.\n\nBecause this burst was not located in onboard processing, the full burst\nresponse was not initiated and not all of the normal data products are\navailable.  A Swift TOO to determine the position of the x-ray afterglow has\nbeen approved,  and will take place once the source comes out of constraint on\nFebruary 19th.",
  "circularId": 14232,
  "createdOn": 1361130152000,
  "email": "james.r.cummings@nasa.gov",
  "subject": "GRB 130216B BAT refined analysis",
  "submitter": "Jay R. Cummings at NASA/GSFC/Swift  <james.r.cummings@nasa.gov>",
  "eventId": "GRB 130216B"
}