{
  "body": "T. Sakamoto (AGU), S. D. Barthelmy (GSFC), R. Gupta (GSFC), H. A. Krimm\n(NSF), S. Laha (GSFC/UMBC), A. Y. Lien (U Tampa), C. B. Markwardt (GSFC),\nM. J. Moss (GSFC), D. M. Palmer (LANL), K. L. Page (U Leicester), T.\nParsotan (GSFC), D. Sadaula (GSFC/UMBC) (i.e. the Swift-BAT team):\n\nUsing the data set from T-61 to T+242 sec from the recent telemetry\ndownlink,\nwe report further analysis of BAT GRB 260922A (trigger #1512686)\n(Page et al., GCN Circ. 45690).  The BAT ground-calculated position is\nRA, Dec = 227.909, 14.216 deg which is\n   RA(J2000)  =  15h 11m 38.1s\n   Dec(J2000) = +14d 12' 57.8\"\nwith an uncertainty of 1.2 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 21%.\n\nThe mask-weighted light curve shows a multi-pulse structures that starts at\n~T-5 s and ends at ~T+80 s. The main peak occurs at ~T+1 s. T90 (15-350\nkeV) is 63.96 +- 12.79 sec (estimated error including systematics).\n\nThe time-averaged spectrum from T-4.90 to T+80.24 sec is best fit by a\nsimple power-law model.  The power law index of the time-averaged spectrum\nis 1.42 +- 0.09.  The fluence in the 15-150 keV band is 4.7 +- 0.2 x 10^-06\nerg/cm2. The 1-sec peak photon flux measured from T+0.72 sec in the 15-150\nkeV band is 5.7 +- 0.6 ph/cm2/sec.  All the quoted errors are at the 90%\nconfidence level.\n\nThe results of the batgrbproduct analysis are available at\nhttps://swift.gsfc.nasa.gov/results/batgrbcat/BAT_refined_circular/1512686\n",
  "circularId": 45703,
  "subject": "GRB 260922A: Swift-BAT refined analysis",
  "submittedHow": "email",
  "createdOn": 1790170597346,
  "submitter": "Amy <yarleen@gmail.com>",
  "eventId": "GRB 260922A"
}