\begin{table}%t2
\caption{\label{TCOR2_J1317}Hotspot separation measurements and error estimates of \object{CORALZ~J131739+411545}.}
%\centering
\par
\begin{tabular}{lcccc}
\hline \hline \noalign{\smallskip}
observation date & $\sigma_{\rm rms,a}$ & $\sigma_{\rm rms,b}$ & separation & $\sigma_{\rm separation}$ \\
 & (mJy) & (mJy) & (mas) & (mas) \\
\hline
2000 March 2  & 2.11 & 0.47 & 3.320 & 0.051 \\
2004 May 24   & 1.79 & 0.33 & 3.265 & 0.046 \\
2008 March 13 & 2.05 & 0.14 & 3.466 & 0.065 \\
\hline
\end{tabular}
\end{table}