{
  "bibcode": "2016GCN.19734....1B",
  "body": "S. D. Barthelmy (GSFC), J. R. Cummings (GSFC/UMBC),\nN. Gehrels (GSFC), H. A. Krimm (GSFC/USRA),\nA. Y. Lien (GSFC/UMBC), C. B. Markwardt (GSFC),\nJ. P. Norris (BSU), D. M. Palmer (LANL),\nT. Sakamoto (AGU), M. Stamatikos (OSU),\nR. L. C. Starling (U Leicester), T. N. Ukwatta (LANL)\n(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 160726A (trigger #706052)\n(Starling et al., GCN Circ. 19731).  The BAT ground-calculated position is\nRA, Dec = 98.809, -6.617 deg which is\n  RA(J2000)  =  06h 35m 14.2s\n  Dec(J2000) = -06d 37' 03.0\"\nwith an uncertainty of 1.3 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 58%.\n\nThe mask-weighted light curve shows a double-peaked structure that\nstarts at ~T0 and ends at ~T+0.8 s, with the two peaks at ~ T0 and ~T+0.6 s,\nrespectively. T90 (15-350 keV) is 0.7 +- 0.04 sec (estimated error including\nsystematics).\n\nThe time-averaged spectrum from T+0.0 to T+0.8 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n1.26 +- 0.13.  The fluence in the 15-150 keV band is 2.6 +- 0.2 x 10^-7 erg/cm2.\nThe 1-sec peak photon flux measured from T-0.11 sec in the 15-150 keV band\nis 3.2 +- 0.3 ph/cm2/sec.  All the quoted errors are at the 90% confidence\nlevel.\n\nUsing a 4-ms binned light curve, the lag analysis finds a lag of\nis -3.5 +/- 3 ms for the 100-350 keV to 25-50 keV, and -5 +/- 6 ms for\nthe 50-100 keV to 15-25 keV band. These numbers are consistent with\nthose of a short GRB.\n\nThe results of the batgrbproduct analysis are available at\nhttp://gcn.gsfc.nasa.gov/notices_s/706052/BA/",
  "circularId": 19734,
  "createdOn": 1469582282000,
  "email": "amy.y.lien@nasa.gov",
  "subject": "GRB 160726A, Swift-BAT refined analysis",
  "submitter": "Amy Lien at GSFC  <amy.y.lien@nasa.gov>",
  "eventId": "GRB 160726A"
}