{
  "bibcode": "2015GCN.18391....1P",
  "body": "C. Pagani (U. Leicester), P. A. Evans (U. Leicester) and S. B. Cenko (GSFC) report on behalf of the Swift-XRT Team:\n\nThe XRT began observing the field of the possible GRB 151004A (Swift trigger 657564, Cenko et al., GCN Circ. 18389) at 19:09:14.0 UT, 3609.3 seconds after the BAT trigger. No source was detected in 1.1 ks of promptly downlinked data, which covered 84% of the BAT error circle. We are waiting for the full dataset to detect and localise any possible XRT\ncounterpart.\n\nThis circular is an official product of the Swift-XRT team.",
  "circularId": 18391,
  "createdOn": 1443989704000,
  "email": "cp232@star.le.ac.uk",
  "subject": "Swift Trigger 657564: XRT prompt analysis",
  "submitter": "Claudio Pagani at U of Leicester  <cp232@star.le.ac.uk>"
}