{
  "bibcode": "2020GCN.27353....1S",
  "body": "M. Stamatikos (OSU), S. D. Barthelmy (GSFC),\nJ. R. Cummings (CPI), J.D. Gropp (PSU),\nH. A. Krimm (NSF), S. Laha (GSFC/UMBC),\nA. Y. Lien (GSFC/UMBC), C. B. Markwardt (GSFC),\nD. M. Palmer (LANL), T. Sakamoto (AGU),\nT. N. Ukwatta (LANL) (i.e. the Swift-BAT team):\n\nUsing the data set from T-240 to T+1065 sec from the recent telemetry\ndownlink,\nwe report further analysis of BAT GRB 200306C (trigger #960102)\n(Gropp et al., GCN Circ. 27326).  The BAT ground-calculated position is\nRA, Dec = 198.577, 11.263 deg which is\n   RA(J2000)  =  13h 14m 18.6s\n   Dec(J2000) = +11d 15' 47.7\"\nwith an uncertainty of 1.3 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 42%.\n\nThe mask-weighted light curve shows several overlapping pulses\nthat start at ~T-12 s and end at ~T+50 s. T90 (15-350 keV)\nis 53.5 +- 12.8 sec (estimated error including systematics).\n\nThe time-averaged spectrum from T-12.33 to T+50.70 sec is best fit by a\nsimple\npower-law model.  The power law index of the time-averaged spectrum is\n0.83 +- 0.12.  The fluence in the 15-150 keV band is 2.8 +- 0.2 x 10^-6\nerg/cm2.\nThe 1-sec peak photon flux measured from T+3.45 sec in the 15-150 keV band\nis 1.3 +- 0.3 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/960102/BA/",
  "circularId": 27353,
  "createdOn": 1583733822000,
  "email": "amy.y.lien@nasa.gov",
  "subject": "GRB 200306C: Swift-BAT refined analysis",
  "submitter": "Amy Lien at GSFC  <amy.y.lien@nasa.gov>",
  "eventId": "GRB 200306C"
}