\begin{table}%t1
%\centering
\par
\caption{Observational parameters used. The observations were made with the ISOCAM~$LW2$ 
(5--8.5~$\mu$m) and
$LW3$ (12--18~$\mu$m) filters at their respective reference wavelengths of 6.7~$\mu$m and 14.3~$\mu$m. On-chip
integration time was always 5.04 seconds and the 3\arcsec~per-pixel-field-of-view was used. $M$ 
and~$N$ are the
number of steps along each dimension of the raster, while dm and dn are the increments for a raster step. The
sensitivity in~$\mu$Jy is given at the 5$\sigma$ level. The table also includes the total area covered and the
number of readouts per raster step. The rasters were repeated $k$ times.  Tot. t is the total time dedicated to
each filter observation. \label{tab:isoobs} }  
\begin{tabular}{ccccccccccc}
       \hline\hline
\noalign{\smallskip}
Filter & $\lambda_{\rm ref}$&\multicolumn{2}{c}{$n$ Steps}&d$m$       &d$n$       &Reads & area &Done $k$  &Sensitivity& Tot. $t$     \\
       &($\mu$m)& $M$ & $N$                    &(\arcsec)&(\arcsec)&per step&$(\arcmin^2)$&times   & ($\mu$Jy)&(sec)      \\
       \hline
\noalign{\smallskip}
$LW2$    &6.7  &6  & 6  &45        &45      & 14     &  28.6   & 1     &400 &3138         \\
\noalign{\smallskip}
$LW3$    &14.3 &14 & 14 &21        &21      & 10     &  37.8   & 2     &140 &22~615        \\
        \hline
      \end{tabular}
\end{table}