{
  "bibcode": "2020GCN.26861....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),\nD. M. Palmer (LANL), T. Sakamoto (AGU),\nE. Sonbas (Adiyaman Univ.), M. Stamatikos (OSU),\nT. N. Ukwatta (LANL) (i.e. the Swift-BAT team):\n\nUsing the data set from T-240 to T+302 sec from the recent telemetry\ndownlink,\nwe report further analysis of BAT GRB 200122A (trigger #950330)\n(Sonbas et al., GCN Circ. 26844).  The BAT ground-calculated position is\nRA, Dec = 210.010, 27.548 deg which is\n   RA(J2000)  =  14h 00m 02.4s\n   Dec(J2000) = +27d 32' 52.2\"\nwith an uncertainty of 1.0 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 78%.\n\nThe mask-weighted light curve shows a multi-peaked structure that starts\nfrom ~T-10 s and ends at ~T+200 s. The main emission interval is\naround T-10 s to T+50 s, with the highest peak occurs at ~T+10 s.\nIn addition, there is a weak pulse around ~T+192 s.\nT90 (15-350 keV) is 174.96 +- 14.54 sec (estimated error including\nsystematics).\n\nThe time-averaged spectrum from T-8.572 to T+201.832 sec is best\nfit by a simple power-law model.  The power law index of the\ntime-averaged spectrum is 1.60 +- 0.05.  The fluence in the 15-150 keV\nband is 1.1 +- 0.03 x 10^-5 erg/cm2. The 1-sec peak photon flux measured\nfrom T+10.18 sec in the 15-150 keV band is 9.1 +- 0.4 ph/cm2/sec.\nAll the quoted errors are at the 90% confidence level.\n\nThe results of the batgrbproduct analysis are available at\nhttp://gcn.gsfc.nasa.gov/notices_s/950330/BA/",
  "circularId": 26861,
  "createdOn": 1579744913000,
  "email": "amy.y.lien@nasa.gov",
  "subject": "GRB 200122A: Swift-BAT refined analysis",
  "submitter": "Amy Lien at GSFC  <amy.y.lien@nasa.gov>",
  "eventId": "GRB 200122A"
}