\begin{table}%t4
%\centering
\par
\caption{\label{tab4}Spatial associations  between optically identified SNRs and Chandra-detected X-ray sources (from the combined 2001 June--October observation).}        \small   
\begin{tabular}{c c c c c l l }     
\hline\hline    
Optically detected SNR & RA & Dec & X-ray source \\
\hline
SNR1 & 01:36:43.8 & +15:49:12.7 & CXOUJ013644.0+154908 \\
SNR2 & 01:36:31.5 & +15:48:50.3 & CXOUJ013631.7+154848 \\
SNR8 & 01:36:45.9 & +15:44:27.1 & CXOUJ013646.0+154422 \\
\hline                  
\end{tabular}
\end{table}