\begin{table}%t2
%\centering
\par
\caption{Log of INTEGRAL-ISGRI observations of the Crab and of net exposure times.
\label{tab:isgri}}
\begin{tabular}{cr}
\hline\hline
Start -- Stop day & Exposure Times (s)~~~~~\\
\hline
 07~Feb.~2003 -- 09~Feb.~2003  &  142~300 \\
 10~Feb.~2003 -- 11~Feb.~2003  &  56~000  \\
 16~Feb.~2003 -- 18~Feb.~2003  &  61~600  \\
 19~Feb.~2003 -- 21~Feb.~2003  &  30~700  \\
 22~Feb.~2003 -- 24~Feb.~2003  &  9800  \\
 25~Feb.~2003 -- 26~Feb.~2003  &  2~100 \\
 15~Aug.~2003 -- 17~Aug.~2003  &  37~900 \\
 17~Aug.~2003 -- 17~Aug.~2003  &  21~600 \\
\hline
Total exposure & 362~000 \\
\hline
\end{tabular}
\end{table}