{
  "circularId": 36769,
  "createdOn": 1719440981060,
  "body": "D. M. Palmer (LANL), 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), T. Parsotan (GSFC), D. Sadaula (GSFC/UMBC), T. Sakamoto\n(AGU) (i.e. the Swift-BAT team):\n\nUsing the data set from T-240 to T+962 sec from the recent telemetry\ndownlink, we report further analysis of BAT GRB 240624A (trigger #1238732)\n(Klingler et al., GCN Circ. 36743).\nThe BAT ground-calculated position is\nRA, Dec = 102.473, -6.534 deg which is\n   RA(J2000)  =  06h 49m 53.6s\n   Dec(J2000) = -06d 32' 02.8\"\nwith an uncertainty of 1.8 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 49%.\n\nThe mask-weighted light curve shows a main structure with some overlapping\npulses that starts at ~T-2 s and ends at ~T+6 s. The main peak occurs at\n~T+1.5 s. T90 (15-350 keV) is 5.89 +- 2.25 sec (estimated error including\nsystematics).\n\nThe time-averaged spectrum from T-0.06 to T+7.04 sec is best fit by a power\nlaw with an exponential cutoff.  This fit gives a photon index 0.07 +-\n0.94, and Epeak of 78.3 +- 36.0 keV (chi squared 45.64 for 56 d.o.f.).  For\nthis model the total fluence in the 15-150 keV band is 4.5 +- 0.6 x 10^-7\nerg/cm2 and the 1-sec peak flux measured from T+0.88 sec in the 15-150 keV\nband is 2.2 +- 0.3 ph/cm2/sec.  A fit to a simple power law gives a photon\nindex of 1.33 +- 0.18 (chi squared 52.69 for 57 d.o.f.).  All the quoted\nerrors are 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/1238732\n",
  "submittedHow": "email",
  "submitter": "Amy <yarleen@gmail.com>",
  "bibcode": "2024GCN.36769....1P",
  "eventId": "GRB 240624A",
  "subject": "GRB 240624A: Swift-BAT refined analysis"
}