GCN Circular 2996

S. Campana, G. Chincarini, A. Moretti, C. Pagani, P. Romano,  G. 
Tagliaferri (OAB),
D. N. Burrows, J. E. Hill, J. A. Kennea, D. Morris, J. A. Nousek (PSU),
M. Capalbi, P. Giommi, M. Perri,  (ASDC/ASI), G. Cusumano, V. Mangano 
(IASF/Pa),
J. Osborne, K. Page, M. Goad, A. Beardmore, A. Wells (U. Leicester),  N. 
Gehrels,
N. White, L. Angelini,  F. Marshall (NASA/GSFC), K. McGowan, K. Mason 
(MSSL)
report on behalf of the Swift XRT team:

We have obtained a new XRT position, using the ground-based pipeline
processing software, including stellar aberration correction.  The analysis
is based on 4 different orbits and the source is detected each time. 
Although
in the last orbits we have only few counts the derived coordinates are very
consistent and differ by less than 5 arcseconds.

The new position for the X-ray afterglow is:

RA(J2000) = 18:32:27.0,
Dec(J2000) = +42 22 13.5

We estimate a remaining uncertainty of about 8 arcseconds, including a
systematic error of about 5 arcseconds due to residual alignment offsets
that have not been fully calibrated yet.