\begin{table}%t2
\caption{\label{tab:chandra}\textit{Chandra} positions (J2000) and errors of the transients that were found in archival  data.}
\small%\centerline
 {
\begin{tabular}{l l l l l l}
\hline \hline
\ & \multicolumn{3}{c}{Coordinates$^a$}  \\
\cline{2-4}
Name & RA & Dec & Err. & Obs ID & Date \\
\ & (h m s) & $(^{\circ}~'~'')$ & ($''$) & \ & \  \\
\hline
AX J1745.6-2901 & 17:45:35.65 & $-$29:01:34.0 & 0.6 & 6639 & 2006-04-11\\
CXOGC J174535.5-290124 & 17:45:35.56 & $-$29:01:23.9 & 0.6 & 6644 & 2006-08-22 \\
CXOGC J174540.0-290005 & 17:45:40.06 & $-$29:00:05.5 & 0.6 & 6646 & 2006-10-29 \\
Swift J174553.7-290347 & 17:45:53.94 & $-$29:03:46.9 & 0.6 & 6363 & 2006-07-17 \\
Swift J174622.1-290634 & 17:46:22.25 & $-$29:06:32.5  & 1.3 & 6642 & 2006-07-04  \\
\hline
\end{tabular}}
\medskip
$^a$ The quoted position uncertainties ($1 \sigma$) were calculated by taking the square root of the quadric sum of the statistical error (from the \texttt{wavdetect} routine) and the uncertainty in absolute astrometry \citep[$0.6''$;][]{aldcroft00}.
\end{table}