{
  "bibcode": "2019GCN.25097....1P",
  "body": "D. M. Palmer (LANL), S. D. Barthelmy (GSFC),\nJ. R. Cummings (CPI), V. D'Elia (SSDC),\nH. A. Krimm (NSF), A. Y. Lien (GSFC/UMBC),\nC. B. Markwardt (GSFC), T. Sakamoto (AGU),\nM. Stamatikos (OSU), 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\ndownlink,\nwe report further analysis of BAT GRB 190718A (trigger #915091)\n(D'Elia et al., GCN Circ. 25082).  The BAT ground-calculated position is\nRA, Dec = 336.605, -41.184 deg which is\n   RA(J2000)  =  22h 26m 25.2s\n   Dec(J2000) = -41d 11' 02.7\"\nwith an uncertainty of 2.4 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 100%.\n\nThe mask-weighted light curve shows a main multi-peaked structure\nthat starts at ~ T0 and ends at ~T+17 s. In addition, there is a weak\npulse at ~T+700 s, which is at the same time as the large flare seen\nby the XRT. T90 (15-350 keV) is 720.0 +- 35.8 sec (estimated error\nincluding systematics).\n\nThe time-averaged spectrum from T+0.1 to T+17.1 sec (i.e., the duration\nof the main emission) is best fit by a simple power-law model.  The power\nlaw\nindex of the time-averaged spectrum is 1.38 +- 0.26.  The fluence in the\n15-150 keV band is 3.6 +- 0.6 x 10^-7 erg/cm2. The spectral analysis for\nthe total burst duration from ~T0 to ~T+720 s does not produce reasonable\nfits due to the large quiescent period from ~T+17 s to ~T+700 s.\nThe 1-sec peak photon flux measured from T+0.08 sec in the 15-150 keV band\nis 1.0 +- 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/915091/BA/",
  "circularId": 25097,
  "createdOn": 1563499456000,
  "email": "amy.y.lien@nasa.gov",
  "subject": "GRB 190718A: Swift-BAT refined analysis",
  "submitter": "Amy Lien at GSFC  <amy.y.lien@nasa.gov>",
  "eventId": "GRB 190718A"
}