{
  "bibcode": "2020GCN.27742....1S",
  "body": "T. Sakamoto (AGU), S. D. Barthelmy (GSFC),\nJ. R. Cummings (CPI), H. A. Krimm (NSF),\nS. Laha (GSFC/UMBC), A. Y. Lien (GSFC/UMBC),\nC. B. Markwardt (GSFC), D. M. Palmer (LANL),\nK. K. Simpson (PSU), M. Stamatikos (OSU),\nT. N. Ukwatta (LANL) (i.e. the Swift-BAT team):\n\nUsing the data set from T-240 to T+962 sec from the recent telemetry\ndownlink,\nwe report further analysis of BAT GRB 200512A (trigger #971846)\n(Simpson et al., GCN Circ. 27726).  The BAT ground-calculated position is\nRA, Dec = 7.417, -2.217 deg which is\n   RA(J2000)  =  00h 29m 40.2s\n   Dec(J2000) = -02d 13' 01.1\"\nwith an uncertainty of 1.5 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 100%.\n\nThe mask-weighted light curve shows a single-pulse structure.\nThe main emission starts at ~T-3 s, peaks at ~T+3 s, and ends at\n~T+40 s. In addition, there are some weak emission that lasts\nuntil ~T+80 s. T90 (15-350 keV) is 74.0 +- 14.3 sec (estimated\nerror including systematics).\n\nThe time-averaged spectrum from T-2.86 to T+78.14 sec is best fit by a\nsimple\npower-law model.  The power law index of the time-averaged spectrum is\n1.68 +- 0.18.  The fluence in the 15-150 keV band is 8.1 +- 1.0 x 10^-7\nerg/cm2.\nThe 1-sec peak photon flux measured from T+3.14 sec in the 15-150 keV band\nis 0.4 +- 0.1 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/971846/BA/",
  "circularId": 27742,
  "createdOn": 1589499227000,
  "email": "amy.y.lien@nasa.gov",
  "subject": "GRB 200512A: Swift-BAT refined analysis",
  "submitter": "Amy Lien at GSFC  <amy.y.lien@nasa.gov>",
  "eventId": "GRB 200512A"
}