TITLE: GCN CIRCULAR NUMBER: 32605 SUBJECT: GRB 220930A: Prompt enhanced Swift-XRT position DATE: 22/09/30 12:16:14 GMT FROM: Phil Evans at U of Leicester pae9@leicester.ac.uk
P.A. Evans (U. Leicester) reports on behalf of the Swift-XRT team:
Using promptly downlinked XRT event data for GRB 220930A, we find an enhanced XRT position of the afterglow: RA, Dec: 64.71723, 13.34924 which is equivalent to: RA (J2000) = 04 18 52.14 Dec (J2000) = +13 20 57.3 with an uncertainty of 1.9 arcseconds (radius, 90% confidence). Analysis of the promptly available data is online at http://www.swift.ac.uk/sper/1125809.
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.