Skip to main content
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 23454

GRB 181126A: Prompt enhanced Swift-XRT position
2018-11-26T10:23:20Z (5 years ago)
Phil Evans at U of Leicester <>
P.A. Evans (U. Leicester) reports on behalf of the Swift-XRT team:

Using  promptly downlinked XRT event data for GRB 181126A, we find an
enhanced XRT position of the afterglow: RA, Dec: 152.3477, -29.6875
which is equivalent to:
   RA (J2000)  = 10 09 23.46
   Dec (J2000) = -29 41 15.0
with an uncertainty of 2.5 arcseconds (radius, 90% confidence).
Analysis of the promptly available data is online at

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.
Looking for U.S. government information and services? Visit