TITLE:   GCN CIRCULAR
NUMBER:  45815
SUBJECT: GRB 261005B: Enhanced Swift-XRT position
DATE:    26/10/06 04:17:08 GMT
FROM:    K.L. Page at U Leicester <klp5@leicester.ac.uk>

K.L. Page, P.A. Evans and M.R. Goad (U. Leicester) report on behalf of the
Swift-XRT team:

Using 1707 s of XRT Photon Counting mode data and 3 UVOT images, we find
an astrometrically corrected X-ray position (using the XRT-UVOT alignment
and matching UVOT field sources to the USNO-B1 catalogue): RA, Dec =
255.33924, 1.58872 which is equivalent to:

RA (J2000):  17 01 21.42
Dec (J2000): +01 35 19.4

with an uncertainty of 2.2 arcsec (radius, 90% confidence).

This position may be improved as more data are received.  The latest
position can be viewed at https://www.swift.ac.uk/xrt_positions. Position
enhancement is described by Goad et al. (2007, A&A, 476, 1401) and Evans
et al. (2009, MNRAS, 397, 1177).

This circular is an official product of the Swift-XRT team.