[vsnet-grb-info 19579] GRB 170711A: Prompt enhanced Swift-XRT position
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Wed Jul 12 08:00:28 JST 2017
TITLE: GCN CIRCULAR
NUMBER: 21322
SUBJECT: GRB 170711A: Prompt enhanced Swift-XRT position
DATE: 17/07/11 22:59:31 GMT
FROM: Phil Evans at U of Leicester <pae9 at leicester.ac.uk>
P.A. Evans (U. Leicester) reports on behalf of the Swift-XRT team:
Using promptly downlinked XRT event data for GRB 170711A, we find an
enhanced XRT position of the afterglow: RA, Dec: 45.8014, 47.8489 which
is equivalent to:
RA (J2000) = 03 03 12.33
Dec (J2000) = +47 50 55.9
with an uncertainty of 2.0 arcseconds (radius, 90% confidence).
Analysis of the promptly available data is online at
http://www.swift.ac.uk/sper/761622.
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.
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