{
  "submittedHow": "web",
  "body": "A. Y. Lien (U Tampa), S. D. Barthelmy (GSFC), \nR. Gupta (GSFC), N. J. Klingler (GSFC/UMBC/CRESSTII),\nH. A. Krimm (NSF), S. Laha (GSFC/UMBC),\nC. B. Markwardt (GSFC), M. J. Moss (GSFC),\nD. M. Palmer (LANL), T. Parsotan (GSFC),\nD. Sadaula (GSFC/UMBC), T. Sakamoto (AGU)\n(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 250114A (trigger #1281241)\n(N. J. Klingler, et al., GCN Circ. 38927).  The BAT ground-calculated position is\nRA, Dec = 166.572, -15.129 deg which is \n   RA(J2000)  =  11h 06m 17.3s \n   Dec(J2000) = -15d 07' 44.5\" \nwith an uncertainty of 1.9 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 21%.\n \nThe mask-weighted light curves display several pulses between T0 and T0+60 sec. \nThere are also two additional pulses of emission starting around T0+130 and T0+260.\nT90 (15-350 keV) is 293.89 +- 13.45 sec (estimated error including systematics).\n \nThe time-averaged spectrum from T-8.528 to T+305.988 sec is best fit by a power law\nwith an exponential cutoff.  This fit gives a photon index 0.39 +- 0.62, \nand Epeak of 50.9 +- 6.3 keV (chi squared 44.16 for 56 d.o.f.).  For this\nmodel the total fluence in the 15-150 keV band is 3.6 +- 0.3 x 10^-06 erg/cm2\nand the 1-sec peak flux measured from T+1.72 sec in the 15-150 keV band is\n1.5 +- 0.4 ph/cm2/sec.  A fit to a simple power law gives a photon index\nof 1.84 +- 0.11 (chi squared 66.05 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\nhttps://swift.gsfc.nasa.gov/results/batgrbcat/BAT_refined_circular/1281241\n",
  "bibcode": "2025GCN.39012....1L",
  "subject": "GRB 250114A: Swift-BAT refined analysis",
  "format": "text/plain",
  "createdOn": 1737553860543,
  "submitter": "Mike Moss at NASA GSFC <mikejmoss3@gmail.com>",
  "eventId": "GRB 250114A",
  "circularId": 39012
}