GCN Circular 22151
P.A. Evans (U. Leicester) reports on behalf of the Swift-XRT team: We have now received the full dataset from the early Swift-XRT observations of GRB 171123A (Evans et al. GCN Circ. 22148). In these data, the afterglow is clearly detected, and the light curve shows an initial decay and plateau, typical of GRB afterglows. The best position currently available was given by Goad et al. (GCN Circ. 22150). This position is ~15 arcsec from that reported in GCN 22148. This is because the object lay ~14 arcsec outside the field of view of the promptly-available XRT data, so only the edges of the PSF were available for source localisation. As ever, the automated XRT analysis can be viewed at http://www.swift.ac.uk/xrt_products/00791922. This circular is an official product of the Swift-XRT team.