\begin{table}%t1
\caption{\label{data-description}Basic properties of the data, coming from the first 4 exoplanet fields, having a 512~s nominal sampling time.}
%
\par
%\centering
\par
 \begin{tabular}{c c c c}
  \hline \hline
 CoRoT observation run&Total number of&Total time&Number of oversampled\\
                      & light curves &span (days)& (32~s) light curves\\
  \hline
IRa01 (Initial run, anti-centre direction)&9871&52&1003\\
SRc01 (First short run, centre direction)&6972&24 &1000\\
LRc01 (First long run, centre direction)&11~408&147 &1156\\
LRa01 (Second long run, anti-centre direction)&11~408&131&1260\\
 \hline
\end{tabular}
\end{table}