{
  "bibcode": "2009GCN.10012....1E",
  "body": "P.A. Evans and M.R. Goad (U. Leicester) report on behalf of the Swift-XRT team:\n\nUsing 3934 s of XRT Photon Counting mode data and 4 UVOT images, we find an\nastrometrically corrected X-ray position (using the XRT-UVOT alignment and\nmatching UVOT field sources to the USNO-B1 catalogue): RA, Dec = 298.66550,\n-22.51820 which is equivalent to:\n\nRA (J2000):  19 54 39.72\nDec (J2000): -22 31 05.7\n\nwith an uncertainty of 1.9 arcsec (radius, 90% confidence). This is consistent\nwith the position of the candidate optical afterglow seen by GROND (Rossi et al.\nGCN Circ. 10008).\n\nThis position may be improved as more data are received.  The latest\nposition can be viewed at http://www.swift.ac.uk/xrt_positions. Position\nenhancement is described by Goad et al. (2007, A&A, 476, 1401) and Evans\net al. (2009, MNRAS, 397, 1177).\n\nThis circular is an official product of the Swift-XRT team.",
  "circularId": 10012,
  "createdOn": 1255264903000,
  "email": "pae9@star.le.ac.uk",
  "subject": "GRB 091010: Enhanced XRT position",
  "submitter": "Phil Evans at U of Leicester  <pae9@star.le.ac.uk>",
  "eventId": "GRB 091010"
}