\begin{table}%t2
%\centering
\par
\caption{Total area covered for each of the four survey fields.\label{TableObsTot}}
\begin{tabular}{lccc}
\hline\hline
Field & Filter & Total Area  & Exp. time   \\
      &        & ($\rm deg^2$)   & (mn) \\  \hline
0230-04 &  $B$ & 3.9 & 120 \\
"Wide'' &  $V$ & 4.17 & 90 \\ 
        &  $R$ & 3.6 & 60\\
        &  $I$ & 5.4 & 60 \\ \hline
0230-04 &  $B$ & 1.45 & 420 \\
"Deep'' &  $V$ & 1.45 & 270 \\ 
        &  $R$ & 1.45 & 180 \\ 
        &  $I$ & 1.45 & 120 \\\hline
1003+01 &  $B$ & 3.0 & 120 \\
        &  $V$ & 2.94 & 90 \\
        &  $R$ & 2.94 & 60 \\
        &  $I$ & 4.14 & 60 \\ \hline
1400+05 &  $B$ & 2.85 & 120 \\
        &  $V$ & 2.85 & 90 \\
        &  $R$ & 3.6 & 60 \\
        &  $I$ & 4.32 & 60 \\ \hline
2217+00 &  $B$ & 1.14 & 120 \\ 
        &  $V$ & 1.14 & 90 \\
        &  $R$ & 1.14 & 60 \\
        &  $I$ & 3.6 & 60 \\ \hline
\end{tabular}
\end{table}