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GCN Circular 36431

Subject

GRB 240511A: Prompt enhanced Swift-XRT position

Date

2024-05-11T18:49:08Z (7 months ago)

From

Phil Evans at U of Leicester <pae9@star.le.ac.uk>

Via

P.A. Evans (U. Leicester) reports on behalf of the Swift-XRT team:

Using  promptly downlinked XRT event data for GRB 240511A, we find an
enhanced XRT position of the afterglow: RA, Dec: 336.67568, 8.51317
which is equivalent to:
   RA (J2000)  = 22 26 42.16
   Dec (J2000) = +08 30 47.4
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/1227767.

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.