[vsnet-grb-info 22455] GRB 190515A: Prompt enhanced Swift-XRT position
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Thu May 16 01:37:29 JST 2019
TITLE: GCN CIRCULAR
NUMBER: 24554
SUBJECT: GRB 190515A: Prompt enhanced Swift-XRT position
DATE: 19/05/15 16:35:25 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 190515A, we find an
enhanced XRT position of the afterglow: RA, Dec: 98.8489, 52.3168 which
is equivalent to:
RA (J2000) = 06 35 23.73
Dec (J2000) = +52 19 00.4
with an uncertainty of 2.2 arcseconds (radius, 90% confidence).
Analysis of the promptly available data is online at
http://www.swift.ac.uk/sper/903845.
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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