{
  "bibcode": "2018GCN.22683....1E",
  "body": "P.A. Evans (U. Leicester) reports on behalf of the Swift-XRT team:\n\nUsing  promptly downlinked XRT event data for GRB 180504A, we find an\nenhanced XRT position of the afterglow: RA, Dec: 331.1442, -14.6583\nwhich is equivalent to:\n   RA (J2000)  = 22 04 34.61\n   Dec (J2000) = -14 39 30.0\nwith an uncertainty of 2.0 arcseconds (radius, 90% confidence).\nAnalysis of the promptly available data is online at\nhttp://www.swift.ac.uk/sper/830822.\n\nPosition enhancement is is described by Goad et al. (2007, A&A, 476,\n1401) and Evans et al. (2009, MNRAS, 397, 1177).\n\nThis circular is an official product of the Swift-XRT team.",
  "circularId": 22683,
  "createdOn": 1525465722000,
  "email": "pae9@leicester.ac.uk",
  "subject": "GRB 180504A: Prompt enhanced Swift-XRT position",
  "submitter": "Phil Evans at U of Leicester  <pae9@leicester.ac.uk>",
  "eventId": "GRB 180504A"
}