[vsnet-grb-info 8813] GRB 100103A - UVOT-enhanced XRT position
GCN Circulars
gcncirc at capella.gsfc.nasa.gov
Tue Jan 5 16:36:15 JST 2010
TITLE: GCN CIRCULAR
NUMBER: 10312
SUBJECT: GRB 100103A - UVOT-enhanced XRT position
DATE: 10/01/05 07:35:56 GMT
FROM: Kim Page at U.of Leicester <kpa at star.le.ac.uk>
K.L. Page, P.A. Evans and M.R. Goad (U. Leicester) report on behalf of the
Swift-XRT team:
Using 3971 s of XRT Photon Counting mode data and 2 UVOT images for the
INTEGRAL burst GRB 100103A, we find an astrometrically corrected X-ray
position (using the XRT-UVOT alignment and matching UVOT field sources to
the USNO-B1 catalogue): RA, Dec = 112.37270, -34.49020 which is equivalent
to:
RA (J2000): 07 29 29.46
Dec (J2000): -34 29 24.9
with an uncertainty of 1.7 arcsec (radius, 90% confidence).
This position may be improved as more data are received. The latest
position can be viewed at http://www.swift.ac.uk/xrt_positions. Position
enhancement 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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