{
  "bibcode": "2016GCN.20336....1S",
  "body": "M. Stamatikos (OSU), S. D. Barthelmy (GSFC),\nJ. R. Cummings (CPI), N. Gehrels (GSFC),\nH. A. Krimm (NSF/USRA), A. Y. Lien (GSFC/UMBC),\nC. B. Markwardt (GSFC), D. M. Palmer (LANL),\nT. Sakamoto (AGU), 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 trigger #728094 (Cholden-Brown, et al.,\nGCN Circ. 20333).  The BAT ground-calculated position is\nRA, Dec = 259.877, -25.010 deg which is\n   RA(J2000)  =  17h 19m 30.5s\n   Dec(J2000) = -25d 00' -37.4\"\nwith an uncertainty of 3.2 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 12%.\n\nThe mask-weighted light curve is featureless, with a hint of some weak emission\nthroughout the duration when the source was in the BAT field of view from\n~T-39.0 to ~T+644.0 sec. However, the very low significance (5.7 sigma)\nsuggests that this might be due to noise fluctuation. With the lack of afterglow\nobservations because of the Sun constraint, it remains difficult to determine the\nsource nature.\n\nThe time-averaged spectrum from T-39.0 to T+644.0 sec is best fit by a simple\npower-law model. The power law index of the time-averaged spectrum\nis 1.70 +- 0.20.  The fluence in the 15-150 keV band is 7.5 +- 1.0 x 10^-6 erg/cm2.\nAll the quoted errors are at the 90% confidence level.\n\nThe results of the batgrbproduct analysis are available at\nhttp://gcn.gsfc.nasa.gov/notices_s/728094/BA/",
  "circularId": 20336,
  "createdOn": 1482623928000,
  "email": "amy.y.lien@nasa.gov",
  "subject": "Trigger 728094, Swift-BAT refined analysis",
  "submitter": "Amy Lien at GSFC  <amy.y.lien@nasa.gov>"
}