{
  "submittedHow": "web",
  "body": "D. M. Palmer (LANL), S. D. Barthelmy (GSFC), R. Gupta (GSFC),\nH. A. Krimm (NSF), S. Laha (GSFC/UMBC), A. Y. Lien (U Tampa),\nC. B. Markwardt (GSFC), M. J. Moss (GSFC), T. Parsotan (GSFC),\nD. Sadaula (GSFC/UMBC), T. Sakamoto (AGU)\n(i.e. the Swift-BAT team):\n\nUsing the data set from T-240 to T+962 sec from the recent telemetry downlink,\nwe report further analysis of BAT GRB 250706A (trigger #1330958)\n(Moss, et al., GCN Circ. 40988).  The BAT ground-calculated position is\nRA, Dec = 284.011, 32.327 deg which is\n   RA(J2000)  =  18h 56m 02.7s\n   Dec(J2000) = +32d 19' 36.8\"\nwith an uncertainty of 1.7 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 26%.\n\nThe mask-weighted light curve shows a single-peak structure that starts at\n~T-1 s, peaks at ~T+2 s, and ends at ~T+40 s.\nT90 (15-350 keV) is 31.9 +- 7.2 sec (estimated error including systematics).\n\nThe time-averaged spectrum from T0 to T+40 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n1.34 +- 0.17.  The fluence in the 15-150 keV band is 1.6 +- 0.2 x 10^-6 erg/cm2.\nThe 1-sec peak photon flux measured from T+1.93 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\nhttps://swift.gsfc.nasa.gov/results/batgrbcat/BAT_refined_circular/1330958",
  "eventId": "GRB 250706A",
  "circularId": 41083,
  "submitter": "Takanori Sakamoto at AGU <tsakamoto@phys.aoyama.ac.jp>",
  "subject": "GRB 250706A: Swift-BAT refined analysis",
  "format": "text/plain",
  "createdOn": 1752440491186,
  "bibcode": "2025GCN.41083....1P"
}