{
  "bibcode": "2016GCN.19441....1S",
  "body": "M. Stamatikos (OSU), S. D. Barthelmy (GSFC), J. R. Cummings (GSFC/UMBC),\nP. D'Avanzo (INAF-OAB), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA),\nA. Y. Lien (GSFC/UMBC), C. B. Markwardt (GSFC), D. M. Palmer (LANL),\nT. Sakamoto (AGU), T. N. Ukwatta (LANL) (i.e. the Swift-BAT team):\n\nUsing the data set from T-240 to T+962 sec from the recent telemetry downlink,\nwe report further analysis of BAT GRB 160519A (trigger #686818)\n(D'Avanzo, et al., GCN Circ. 19436).  The BAT ground-calculated position is\nRA, Dec = 71.122, 31.246 deg which is\n  RA(J2000)  =  04h 44m 29.2s\n  Dec(J2000) = +31d 14' 46.1\"\nwith an uncertainty of 2.2 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 19%.\n\nThe mask-weighted light curve shows a single-pulse structure that starts\nat ~ T-1 s, peaks at ~T0, and ends at ~T+3 s. There are some weak emissions\nextend till ~T+40 s. T90 (15-350 keV) is 35.57 +- 6.11 sec (estimated error\nincluding systematics).\n\nThe time-averaged spectrum from T-0.99 to T+41.12 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n1.95 +- 0.25.  The fluence in the 15-150 keV band is 1.2 +- 0.2 x 10^-6 erg/cm2.\nThe 1-sec peak photon flux measured from T-0.16 sec in the 15-150 keV band\nis 2.4 +- 0.5 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/686818/BA/",
  "circularId": 19441,
  "createdOn": 1463784681000,
  "email": "amy.y.lien@nasa.gov",
  "subject": "GRB 160519A: Swift-BAT refined analysis",
  "submitter": "Amy Lien at GSFC  <amy.y.lien@nasa.gov>",
  "eventId": "GRB 160519A"
}