TITLE: GCN CIRCULAR NUMBER: 7641 SUBJECT: GRB 080426: Enhanced Swift-XRT position DATE: 08/04/26 18:42:21 GMT FROM: Phil Evans at U of Leicester A.P. Beardmore, P.A. Evans, M.R. Goad and J.P. Osborne (U. Leicester) report on behalf of the Swift-XRT team. Using 894 s of overlapping XRT Photon Counting mode and UVOT data for GRB 080426, 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 = 26.49890, +69.46823 which is equivalent to: RA (J2000): 01h 45m 59.74s Dec (J2000): +69d 28' 05.6" with an uncertainty of 1.8 arcsec (radius, 90% confidence). This position may be improved as more data are received. The latest position can be viewed at http://www.swift.ac.uk/xrt_positions. Position enhancement is described by Goad et al. (2007, A&A, 476, 1401 http://www.swift.ac.uk/xrt_positions/Goad.pdf), the current algorithm is an extension of this method. This circular was automatically generated, and is an official product of the Swift-XRT team.