{
  "bibcode": "2018GCN.23286....1B",
  "body": "S. D. Barthelmy (GSFC),  J. R. Cummings (CPI), H. A. Krimm (NSF/USRA),\nA. Y. Lien (GSFC/UMBC), C. B. Markwardt (GSFC), D. M. Palmer (LANL),\nT. Sakamoto (AGU), M. Stamatikos (OSU), A. Tohuvavohu (PSU),\nT. N. Ukwatta (LANL) (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 180930A (trigger #864584)\n(Tohuvavohu, et al., GCN Circ. 23279).  The BAT ground-calculated position is\nRA, Dec = 76.894, -25.124 deg which is \n  RA(J2000)  =  05h 07m 34.6s \n  Dec(J2000) = -25d 07' 25.6\" \nwith an uncertainty of 2.2 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 87%.\n\nThe mask-weighted light curve shows a single episode of weak emission from \nT-4 sec to T+4 sec with several peaks. T90 (15-350 keV) is 6.80 +- 0.95 sec \n(estimated error including systematics).\n\nThe time-averaged spectrum from T-3.24 to T+4.20 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n1.86 +- 0.28.  The fluence in the 15-150 keV band is 2.1 +- 0.4 x 10^-7 erg/cm2.\nThe 1-sec peak photon flux measured from T+0.14 sec in the 15-150 keV band\nis 0.9 +- 0.2 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/864584/BA/",
  "circularId": 23286,
  "createdOn": 1538418100000,
  "email": "hkrimm@nsf.gov",
  "subject": "GRB 180930A: Swift-BAT refined analysis",
  "submitter": "Hans Krimm at NSF/NASA-GSFC  <hkrimm@nsf.gov>",
  "eventId": "GRB 180930A"
}