\begin{table}%T4
\renewcommand{\arraystretch}{1.2}
\caption{\label{tab4}In this table we report: 
i)~the number of ONS which we defined in Table~\ref{tab1};
ii)~the total number of designated objects, old and new {\it Desig. objs}; 
iii)~the number of new NEAs; 
iv)~the number of known NEAs detected accidentally during the survey; 
v)~the ratio between new and known NEAs detections; 
vi)~the total list of discoveries (essentially, MBO~discoveries); 
vii)~the nominal limiting magnitude of the system;
viii)~the initial time and 
ix)~the final time for the statistics; x) the total number of clear
nights (even clear for just one hour) in which these observations
were obtained.}
%\centering
\par
\begin{tabular}{l|c|c|c|c}
\hline\hline
& {\bf LONEOS} & {\bf LINEAR} & {\bf CINEOS} & {\bf WFI}\\
\hline
         ONS &     1666 & unpubl. &     2235 &    375 \\
Desig. objs   &    38212 &   23678 &     9522 &    264 \\
\hline
New NEAs     &       14 &      13 &       5 &      2 \\
Known NEAs   &      112 &      97 &      14 &      0 \\
{\bf Ratio}  &    0.125 &   0.134 &    0.357 & $>$$1.0$ \\
\hline
All discov.  &     1283 &    1625 &     1152 &     76 \\
Lim. magn.   &   19.3 V &  19.4 V &   20.5 V & 22.0 V \\
Start time   & 20/11/02 & 20/02/03 &  10/06/02 &  02/06/02 \\
End time     & 18/03/03 & 18/03/03 &  17/10/03 &  25/01/03 \\
No. of nights &   40    &    27   &     63   &     3   \\
\hline
\end{tabular}
\end{table}