\begin{table}%T1
\renewcommand{\arraystretch}{1.15}
\caption{\label{tab1}Various statistics regarding the data obtained
with the \mbox{2.2-m}~MPG-WFI system on three nights 
(2/3~June~2002, 23/24 and~24/25~Jan.~2003): i)~the 
number of fields and the total sky coverage; ii)~the limiting
magnitude in $3\times  3$~binning mode and the seeing conditions during 
the three nights; 
iii) the total number of asteroid detections in all binning modes. They
are followed by two groups: the ONS (One Night Stands) are observations
of unidentified asteroids made in the course of only one night. The second
group are known asteroids; the sum of these two
groups is smaller than the number of detections because some fields
from the first night were repeated on the second;
iv)~the total number of discoveries during the two runs: these are 
the subset of the known asteroids that were previously unknown
and that were observed on two nights, a necessary condition 
established by the MPC in order to receive credit.
It is interesting to notice that a large number of detections comes
from unknown asteroids (ONS): the relative number of objects was
especially high during the June run because we observed regions
south of the ecliptic which are not easily accessible to northern
observers. The numbers from the June run are affected by rapid 
moving clouds during the exposures.}
%\centering
\par
\begin{tabular}{l|c|c}
\hline\hline
                  &         2/3 June &            23/25 January \\
\hline
Number of fields  &               13 &                       71 \\
Sky covered       &        3.9 sq.deg. &               24.1 sq.deg. \\
Limiting mag     & 21.0--22.0      &      21.0--21.5 (23/24) \\
                  &                  &      22.0--22.8 (24/25) \\
Aver. seeing      & 1.7--$2.0$\arcsec & 1.8--$2.0$\arcsec (23/24) \\
                  &                  & 0.7--$0.8$\arcsec (24/25) \\
Total detections  &              122 &                      661 \\
ONS               &               93 &                      282 \\
Known asteroids   &               29 &                      235 \\
Discov.           &                1 &                      75  \\
\hline  
\end{tabular}
\end{table}