{
  "bibcode": "2019GCN.26275....1K",
  "body": "H. A. Krimm (NSF), S. D. Barthelmy (GSFC),  S. Laha (GSFC/UMBC),\nA. Y. Lien (GSFC/UMBC), C. B. Markwardt (GSFC), D. M. Palmer (LANL),\nT. Sakamoto (AGU), B. Sbarufatti (PSU), 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 191122A (trigger #938899)\n(Sbarufatti, et al., GCN Circ. 26269).  The BAT ground-calculated position is\nRA, Dec = 54.290, -32.176 deg which is \n   RA(J2000)  =  03h 37m 09.7s \n   Dec(J2000) = -32d 10' 35.4\" \nwith an uncertainty of 1.0 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 26%.\n\nThe mask-weighted light curve shows a single FRED-shaped pulse rising from \nT-20 sec to T+0 sec, then decaying out to roughly T+250 sec.\nT90 (15-350 keV) is 153.3 +- 38.3 sec (estimated error including systematics).\n\nThe time-averaged spectrum from -11.2 to 245.4 sec is best fit by a power law\nwith an exponential cutoff.  This fit gives a photon index 1.24 +- 0.28, \nand Epeak of 89.2 +- 41.9 keV (chi squared 69.11 for 56 d.o.f.).  For this\nmodel the total fluence in the 15-150 keV band is 6.6 +- 0.3 x 10^-6 erg/cm2\nand the 1-sec peak flux measured from T+6.44 sec in the 15-150 keV band is\n3.1 +- 0.4 ph/cm2/sec.  A fit to a simple power law gives a photon index\nof 1.67 +- 0.07 (chi squared 76.48 for 57 d.o.f.).  All the quoted errors\nare at the 90% confidence level. \n\nThe results of the batgrbproduct analysis are available at\nhttp://gcn.gsfc.nasa.gov/notices_s/938899/BA/",
  "circularId": 26275,
  "createdOn": 1574466411000,
  "email": "hkrimm@nsf.gov",
  "subject": "GRB 191122A: Swift-BAT refined analysis",
  "submitter": "Hans Krimm at NSF/NASA-GSFC  <hkrimm@nsf.gov>",
  "eventId": "GRB 191122A"
}