{
  "bibcode": "2020GCN.27913....1L",
  "body": "A. Y. Lien (GSFC/UMBC), S. D. Barthelmy (GSFC),\nJ. R. Cummings (CPI), H. A. Krimm (NSF),\nS. Laha (GSFC/UMBC), C. B. Markwardt (GSFC),\nM. J. Moss (GWU), D. M. Palmer (LANL),\nT. Sakamoto (AGU), 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\ndownlink,\nwe report further analysis of BAT GRB 200608A (trigger #976692)\n(Moss et al., GCN Circ. 27906).  The BAT ground-calculated position is\nRA, Dec = 309.628, -31.194 deg which is\n   RA(J2000)  =  20h 38m 30.7s\n   Dec(J2000) = -31d 11' 39.4\"\nwith an uncertainty of 2.3 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 53%.\n\nThe mask-weighted light curve shows several overlapping pulses that start\nat ~T+20 s and ends at ~T+150 s. The two main peaks occur at\n~T+18 s and ~T+70 s, respectively. There may be an additional weak pulse\nat ~T-100 s. T90 (15-350 keV) is 119.2 +- 34.7 sec (estimated error\nincluding systematics).\n\nThe time-averaged spectrum from T+18.09 to T+147.94 sec is best fit by a\nsimple\npower-law model.  The power law index of the time-averaged spectrum is\n2.05 +- 0.22.  The fluence in the 15-150 keV band is 1.5 +- 0.2 x 10^-6\nerg/cm2.\nThe 1-sec peak photon flux measured from T+70.29 sec in the 15-150 keV band\nis 0.7 +- 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\nhttp://gcn.gsfc.nasa.gov/notices_s/976692/BA/",
  "circularId": 27913,
  "createdOn": 1591729632000,
  "email": "amy.y.lien@nasa.gov",
  "subject": "GRB 200608A: Swift-BAT refined analysis",
  "submitter": "Amy Lien at GSFC  <amy.y.lien@nasa.gov>",
  "eventId": "GRB 200608A"
}