{
  "bibcode": "2015GCN.18423....1P",
  "body": "C. Pagani, K. L. Page, P. A. Evans (U. Leicester) and S. B. Cenko (GSFC) \nreport on behalf of the Swift-XRT team:\n\nA second epoch of XRT data was collected on the field of the Swift \nTrigger 657564 / GRB 151004A (Cenko et al., GCN Circ. 18389) on 2015 \nOctober 15. The observations consist of 7.7 ks of PC mode data, from \nT0+885 ks to T0+932 ks.\n\nThe candidate X-ray source reported in Barthelmy et al., GCN Circ. \n18396, originally detected at a count rate of 4.8 (+/- 1.14) x 10^-3 \ncnts/sec (0.3-10 keV) is not detected in this second epoch of \nobservations, with a 3 sigma upper limit of 1.5 x 10^-3 cnts/sec (0.3-10 \nkeV). The fading confirms that this is the X-ray afterglow of the Swift \nTrigger 657564 / GRB 151004A.\n\nThis circular is an official product of the Swift-XRT team.",
  "circularId": 18423,
  "createdOn": 1445001903000,
  "email": "cp232@star.le.ac.uk",
  "subject": "GRB 151004A: Swift-XRT follow-up observations",
  "submitter": "Claudio Pagani at U of Leicester  <cp232@star.le.ac.uk>",
  "eventId": "GRB 151004A"
}