\begin{table}%t4
%\centering
\small
\caption{Second epoch observations.}\label{tab:obssecond}
\begin{tabular}{lllllll}
\hline\hline Filter & Field & Center (J2000) & Exposures & Total
exposure time &
Mean seeing & Observing year \\
       & & & & (s) & (\mbox{arcsec}) & \\
\hline
$R$ & South & 12:59:40.00 ; 27:49:17.0 & 10 & 7200 & 0.85 & 2000 \\
$I$ & South & 12:59:40.00 ; 27:48:46.9 & 10 & 7200 & 0.80 & 2000 \\
$I$ & North & 12:59:40.00 ; 28:10:06.9 & 10 & 7200 & 1.00 & 2000 \\
\hline
\end{tabular}
\end{table}