\begin{table}%t3
%\centering
\par
\caption{Offset positions of the \gl~B relative to A.
\label{astromdata}}
\begin{tabular}{llllll}
\hline\hline\noalign{\smallskip} 
UT Date  & Julian &$\Delta\alpha$  & $\Delta\delta$ & Separation & Position\\
& Date & (mas) &  (mas) &(mas)  & Angle ($\degr$)\\
\noalign{\smallskip}\hline\noalign{\smallskip}
08/09/2000 & 2~451~796 & $1510\pm25$   & $-853\pm6$ &$1734\pm22$&$119.5\pm0.8$\\
10/11/2000  & 2~451~859 & $1522\pm3$   & $-789\pm20$ &$1714\pm10$&$117.4\pm0.4$\\
12/12/2000  & 2~551~891 & $1508\pm10$   & $-851\pm13$ &$1732\pm11$& $119.4\pm0.4$\\
\noalign{\smallskip}
%15/02/2003 & $1701\pm18$   & $-635\pm9$ &$1816\pm14$ &$110.5\pm0.7$\\
12/11/2003 & 2~452~986 & $1818\pm12$   & $-573\pm4$ &$1906\pm11$ & $107.5\pm0.4$\\
%12/11/2003 & $1830\pm12$   & $-581\pm4$ &$1919\pm11$ & $107.6\pm0.4$\\
22/09/2004 & 2~453~271 & $1872\pm16$ & $-513\pm6$ & $1941\pm14$  & $105.3\pm0.5$\\
29/07/2005 & 2~453~581 & $1920\pm13$ & $-435\pm9$ & $1969\pm11$  & $102.7\pm0.4$\\
\hline
\end{tabular}
\end{table}