GRB 220521A: Prompt enhanced Swift-XRT position
Abstract
Using promptly downlinked XRT event data for GRB 220521A, we find an enhanced XRT position of the afterglow: RA, Dec: 275.22978, 10.37221 which is equivalent to: RA (J2000) = 18 20 55.15 Dec (J2000) = +10 22 19.9 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/1107466. 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.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- May 2022
- Bibcode:
- 2022GCN.32077....1E