GCN Circular 29113
P.A. Evans (U. Leicester) reports on behalf of the Swift-XRT team: Using promptly downlinked XRT event data for GRB 201221D, we find an enhanced XRT position of the afterglow: RA, Dec: 171.0587, 42.1438 which is equivalent to: RA (J2000) = 11 24 14.09 Dec (J2000) = +42 08 37.5 with an uncertainty of 4.2 arcseconds (radius, 90% confidence). Analysis of the promptly available data is online at http://www.swift.ac.uk/sper/1014037. 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.