{
  "bibcode": "2019GCN.23873....1P",
  "body": "D. M. Palmer (LANL), S. D. Barthelmy (GSFC),\nJ. R. Cummings (CPI), H. A. Krimm (NSF/USRA),\nA. Y. Lien (GSFC/UMBC), C. B. Markwardt (GSFC),\nT. Sakamoto (AGU), M. Stamatikos (OSU),\nT. N. Ukwatta (LANL) (i.e. the Swift-BAT team):\n\nUsing the data set from T-213 to T+456 sec from the recent telemetry downlink,\nwe report further analysis of BAT GRB 190203A (trigger #887512)\n(Lien et al., GCN Circ. 23845).  The BAT ground-calculated position is\nRA, Dec = 22.603, 55.736 deg which is\n  RA(J2000)  =  01h 30m 24.7s\n  Dec(J2000) = +55d 44' 10.5\"\nwith an uncertainty of 1.0 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 21%.\n\nThe mask-weighted light curve shows several overlapping pulses that starts ~ T-60 s\nand ends at T+40 s. Note that there is a large data gap from T-117.652 s to T-60.784 s,\nso it is possible that there is additional burst emission during this interval.\nT90 (15-350 keV) is 96 +- 16 sec (estimated error including systematics).\n\nThe time-averaged spectrum from T-60.784 to T+ 43.216 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n1.06 +- 0.06.  The fluence in the 15-150 keV band is 1.5 +- 0.05 x 10^-5 erg/cm2.\nThe 1-sec peak photon flux measured from T+2.72 sec in the 15-150 keV band\nis 3.1 +- 0.6 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/887512/BA/",
  "circularId": 23873,
  "createdOn": 1549338035000,
  "email": "amy.y.lien@nasa.gov",
  "subject": "GRB 190203A: Swift-BAT refined analysis",
  "submitter": "Amy Lien at GSFC  <amy.y.lien@nasa.gov>",
  "eventId": "GRB 190203A"
}