\begin{table}%t3
\caption {\label{table:slitm}Slit properties of the mask along the minor axis.}
%\centerline
 {
\begin{tabular}{cccccc}
\hline\hline
\noalign{\smallskip}
Slit & Width & Length & $i$ & PA & $\lambda$ coverage \\
     & ($\arcsec$)  &  ($\arcsec$)  & (deg) & (deg) & (\AA~) \\
\hline
   NGC 92 & 1 & $2\times 39.9$ & 0 & 60 &  4620--5650 \\
   NGC 89 & 1 & 28 & --18 & 42 &  4850--5890 \\
   NGC 87 & 1 & 25 & 38.7 & --81 &  4450--5490 \\
   NGC 88 & 1 & 30 & 7.5 & 67 & 4620--5650 \\
\hline
\end{tabular}}
\par
\tablefoot{$i$~=~inclination angle with respect to 
the dispersion axis, PA~=~position angle with respect to the N~direction.}
\end{table}