TITLE:   GCN CIRCULAR
NUMBER:  16859
SUBJECT: GRB 140930B: Prompt enhanced Swift-XRT position
DATE:    14/09/30 20:39:57 GMT
FROM:    Phil Evans at U of Leicester  <pae9@leicester.ac.uk>

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

Using  promptly downlinked XRT event data for GRB 140930B, we find an
enhanced XRT position of the afterglow: RA, Dec: 6.3478, 24.2948 which
is equivalent to:
   RA (J2000)  = 00 25 23.46
   Dec (J2000) = +24 17 41.3
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/614094.

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.