{
  "bibcode": "2008GCN..8655....1B",
  "body": "A.P. Beardmore, P.A. Evans, M.R. Goad and J.P. Osborne (U. Leicester) \nreport on behalf of the Swift-XRT team.\n\nUsing 2165 s of XRT Photon Counting mode data and 3 UVOT\nimages for GRB 081211, we find an astrometrically corrected X-ray\nposition (using the XRT-UVOT alignment and matching UVOT field sources\nto the USNO-B1 catalogue): RA, Dec = 328.1163, -33.8364 which is equivalent\nto:\n\nRA (J2000): 21h 52m 27.91s\nDec (J2000): -33d 50' 10.9\"\n\nwith an uncertainty of 1.6 arcsec (radius, 90% confidence).\n\nThis position may be improved as more data are received. The latest position\ncan be viewed at http://www.swift.ac.uk/xrt_positions. Position enhancement is\ndescribed by Goad et al. (2007, A&A, 476, 1401\nhttp://www.swift.ac.uk/xrt_positions/Goad.pdf), the current algorithm is an\nextension of this method.\n\nThis circular was automatically generated, and is an official product of the\nSwift-XRT team.",
  "circularId": 8655,
  "createdOn": 1229026330000,
  "email": "pae9@star.le.ac.uk",
  "subject": "GRB 081211: Enhanced Swift-XRT position",
  "submitter": "Phil Evans at U of Leicester  <pae9@star.le.ac.uk>",
  "eventId": "GRB 081211"
}