TITLE: GCN CIRCULAR NUMBER: 9906 SUBJECT: GRB 090912: Enhanced Swift-XRT position DATE: 09/09/12 19:00:06 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 1374 s of XRT Photon Counting mode data and 2 UVOT images for GRB 090912, 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 = 188.04297, +61.48454 which is equivalent to: RA (J2000): 12h 32m 10.31s Dec (J2000): +61d 29' 04.4" 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) and Evans et al. (2009, MNRAS, 397, 1177). This circular was automatically generated, and is an official product of the Swift-XRT team.