\begin{table}%t1
%\centering
\par
\caption{Details concerning the pointings for the $U$ deep field. Filter central
wavelengths and {\it FWHM} are given before and after (in italics) the convolution
with the telescope, CCD and atmosphere transmissions. The area includes
only the region where sources have been included in the catalog: it
does not include border regions with vignetting or a low signal to noise
ratio.}
\label{Tab:log}
\begin{tabular}{c cm{1.5cm} c cc cc ccc}
\hline\hline 
Pointing& Date& Filter & \multicolumn{2}{c}{$\lambda_{c}$} & 
     \multicolumn{2}{c}{\it FWHM} & Area& Ditherings& Tot. exp & Seeing \\
        &     &        & \multicolumn{2}{c}{(\AA)}        
	& \multicolumn{2}{c}{(\AA)} 
	& ($\deg^2$)&     &  (h)& (arcsec)\\
\hline
1 & Nov. 99 & Loiano & 3620 & \emph{3750}& 527 & \emph{460}& 0.27& $25\times2000$~s& 13.9& 1.4\\
2 & Oct. 00, Nov. 00 & ESO U/360 & 3404 & \emph{3540} & 732 & \emph{536}& 0.30& 
$22 \times 1000$~s + 25 $\times$ 2000 s& 20.3& 1.3\\
3 & Aug. 01, Oct. 01, Apr. 02& ESO U/360& 3404 & \emph{3540}& 732 & \emph{536}&
0.29& $32 \times 2000$~s& 17.8& 1.2\\
\hline
\end{tabular}
\end{table}