\begin{table}%t2
%\centering
\par
\caption{Log of observations of \ngcsyv\ from three campaigns.
The columns contain the adopted abbreviation 
of the campaign, the name of the telescope, the duration
of the campaign, the number of useful nights ($n$), the median seeing in the $V$ filter,
and the number of images obtained in each of the $BVRI$ filters. 
The last column gives information on which reduction
technique we have used. Note that we have not reduced the {\em MOCH01} data set, 
but we have obtained the light curves
of the variable stars published by Mochejska \ea~(\cite{mochejska02}).
\label{tab:n6791}}
%\centering
\par
\begin{footnotesize}
\begin{tabular}{llrc|c|cccc|r}
\hline\hline
 &  &   &  &  &  \multicolumn{4}{c|}{Number of images} & \multicolumn{1}{c}{Reduction} \\
Campaign & Telescope& Dates UT & $n$ &  [$''$] & $N_B$ & $N_V$ &$N_R$ & $N_I$ & \multicolumn{1}{c}{Method}\\
\hline
{\em NOT01}  & 2.5~m NOT & 9/7--17/7 01    &  7 & 1\farcs0  & 58 & 264 &   -- & 444 & \allframe/\isis \\
{\em MOCH01} & 1.2 m FLWO  & 6/7--1/8 01     & 18 & 2\farcs1  & --  &  36 & 204 &   -- & {\em Not Reduced} \\
{\em SMR95}  & 1.0 m JKT   & 11/7-24/7 95    & 14 & 1\farcs6  & --  & 601 &   -- & 153 & \allframe \\
%CMR1   & 2.5~m INT & 26/10--28/10 86 &  3 & 1\Sec9  &   - &   - &   -  & \allframe \\
%CMR2   & 2.5~m INT & 24/7--25/7 93   &  2 & 1\Sec9  &   - &   - &   -  & \allframe \\
%FGJ    & 2.5~m INT & 
\hline
\end{tabular}
\end{footnotesize}
\end{table}