{
  "bibcode": "2019GCN.25860....1M",
  "body": "C. B. Markwardt (GSFC), S. D. Barthelmy (GSFC), J. R. Cummings (CPI),\nH. A. Krimm (NSF), A. Y. Lien (GSFC/UMBC), A. Melandri (INAF-OAB),\nD. M. Palmer (LANL), T. Sakamoto (AGU), M. Stamatikos (OSU),\nT. N. Ukwatta (LANL) (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 190926*A (trigger #926515)\n(Melandri, et al., GCN Circ. 25848).  The BAT ground-calculated position is\nRA, Dec = 100.616, 59.531 deg which is \n  RA(J2000)  =  06h 42m 27.9s \n  Dec(J2000) = +59d 31' 51.2\" \nwith an uncertainty of 2.3 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 50%.\n\nThe BAT mask-weighted light curve shows a complex structure with multiple\npeaks extending from roughly T-120 sec to T+450 sec.  T90 (15-350 keV) is \n368.9 +- 20.9 sec (estimated error including systematics).\n\nThe time-averaged spectrum from T-0.00 to T+395.46 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n2.14 +- 0.18.  The fluence in the 15-150 keV band is 2.5 +- 0.2 x 10^-6 erg/cm2.\nThe 1-sec peak photon flux measured from T+52.95 sec in the 15-150 keV band\nis 0.6 +- 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/926515/BA/",
  "circularId": 25860,
  "createdOn": 1569701129000,
  "email": "hkrimm@nsf.gov",
  "subject": "GRB 190926A: Swift-BAT refined analysis",
  "submitter": "Hans Krimm at NSF/NASA-GSFC  <hkrimm@nsf.gov>",
  "eventId": "GRB 190926A"
}