TITLE: GCN CIRCULAR NUMBER: 18438 SUBJECT: GRB 151022A: Prompt enhanced Swift-XRT position DATE: 15/10/22 15:04:40 GMT FROM: Phil Evans at U of Leicester P.A. Evans (U. Leicester) reports on behalf of the Swift-XRT team: Using promptly downlinked XRT event data for GRB 151022A, we find an enhanced XRT position of the afterglow: RA, Dec: 349.1969, 55.8119 which is equivalent to: RA (J2000) = 23 16 47.25 Dec (J2000) = +55 48 42.9 with an uncertainty of 2.0 arcseconds (radius, 90% confidence). Analysis of the promptly available data is online at http://www.swift.ac.uk/sper/661036. Position enhancement is 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.