{
  "bibcode": "2021GCN.30997....1M",
  "body": "C. B. Markwardt (GSFC), S. D. Barthelmy (GSFC), J.D. Gropp (PSU), \nH. A. Krimm (NSF),S. Laha (GSFC/UMBC), A. Y. Lien (U Tampa),\nD. M. Palmer (LANL),T. Parsotan (GSFC/UMBC), T. Sakamoto (AGU),\nM. Stamatikos (OSU) (i.e. the Swift-BAT team):\n\nUsing the data set from T-239 to T+844 sec from the recent telemetry downlink,\nwe report further analysis of BAT GRB 211025A (trigger #1081113)\n(Gropp, et al., GCN Circ. 30986).  The BAT ground-calculated position is\nRA, Dec = 162.407, 31.506 deg which is \n  RA(J2000)  =  10h 49m 37.8s \n  Dec(J2000) = +31d 30' 20.8\" \nwith an uncertainty of 2.3 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 100%.\n\nThe mask-weighted light curve shows a single broad pulse beginning at T+0,\npeaking around T+50 sec and declining to background by T+150 sec. \nT90 (15-350 keV) is 103.5 +- 27.6 sec (estimated error including systematics).\n \nThe time-averaged spectrum from T+12.32 to T+128.5 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n1.96 +- 0.28.  The fluence in the 15-150 keV band is 7.7 +- 1.4 x 10^-7 erg/cm2.\nThe 1-sec peak photon flux measured from T+51.66 sec in the 15-150 keV band\nis 0.5 +- 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/1081113/BA/",
  "circularId": 30997,
  "createdOn": 1635188668000,
  "email": "hkrimm@nsf.gov",
  "subject": "GRB 211025A: Swift-BAT refined analysis",
  "submitter": "Hans Krimm at NSF/NASA-GSFC  <hkrimm@nsf.gov>",
  "eventId": "GRB 211025A"
}