TITLE: GCN CIRCULAR NUMBER: 9521 SUBJECT: GRB 090618: Enhanced Swift-XRT position DATE: 09/06/18 15:00:51 GMT FROM: Phil Evans at U of Leicester P.A. Evans, M.R. Goad, J.P. Osborne and A.P. Beardmore (U. Leicester) report on behalf of the Swift-XRT team. Using 2422 s of XRT Photon Counting mode data and 5 UVOT images for GRB 090618, 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 = 293.99304, +78.35702 which is equivalent to: RA (J2000): 19h 35m 58.33s Dec (J2000): +78d 21' 25.3" with an uncertainty of 1.7 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, arXiv:0812.3662). This circular was automatically generated, and is an official product of the Swift-XRT team.