{
  "bibcode": "2015GCN.17880....1L",
  "body": "A. Y. Lien (GSFC/UMBC), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC),\nJ. R. Cummings (GSFC/UMBC), P. A. Evans (U Leicester), N. Gehrels (GSFC),\nH. A. Krimm (GSFC/USRA), C. B. Markwardt (GSFC), D. M. Palmer (LANL),\nT. Sakamoto (AGU), M. Stamatikos (OSU), T. N. Ukwatta (LANL)\n(i.e. the Swift-BAT team):\n \nUsing the data set from T-239 to T+711 sec from the recent telemetry downlink,\nwe report further analysis of BAT GRB 150527A (trigger #641698)\n(Evans, et al., GCN Circ. 17874).  The BAT ground-calculated position is\nRA, Dec = 288.962, 4.195 deg, which is \n   RA(J2000)  =  19h 15m 50.9s \n   Dec(J2000) = +04d 11' 41.0\" \nwith an uncertainty of 1.0 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 99%.\n \nThe mask-weighted light curves shows a multi-peak event starting at ~T-45 sec,\nwith the brightest peak at ~T-14, and ending at T+25 sec.\nT90 (15-350 keV) is 112 +- 80 sec (estimated error including systematics).\n \nThe time-averaged spectrum from T-111.44 to T+16.56 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n1.69 +- 0.10.  The fluence in the 15-150 keV band is 3.1 +- 0.2 x 10^-6 erg/cm2.\nThe 1-sec peak photon flux measured from T-7.94 sec in the 15-150 keV band\nis 0.3 +- 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/641698/BA/",
  "circularId": 17880,
  "createdOn": 1432745224000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 150527A: Swift-BAT refined analysis",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 150527A"
}