\begin{table}%t1
\caption{\label{ObservationID}Observation identifiers and date for all \mbox{{\it XMM-Newton}} observations of 2008 including the source  \hessj. }
\small%\centering
\par
\begin{tabular}{c c r  r r r}
\hline \hline \noalign{\smallskip} 
Obs. ID & Date & \multicolumn{1}{c}{MOS} & \multicolumn{1}{c}{ MOS} & \multicolumn{1}{c}{pn} & \multicolumn{1}{c}{pn}\\
 & & \multicolumn{1}{c}{act. s} & \multicolumn{1}{c}{filt. s} & \multicolumn{1}{c}{act. s} & \multicolumn{1}{c}{filt. s} \\
\hline 
556140101 & 14.08.08 &  10~621& 10~621& 9834& 5800\\
556140201 & 16.08.08 &  9620& 7500& 8034& 5900\\
556140301 & 18.08.08 &  8619& 7500& 7034& 4500\\
556140401 & 20.08.08 &  12~829& 12~821& 11234 & 11~000\\
556140501 & 21.08.08 &  4951& 4951& 2239& 1900\\
556140601 & 22.08.08 &  14~027& 14~027 & 12~398& 12~398\\
556140701 & 24.08.08 &  10~621& 10~621& 9834& 6700\\
556140801 & 26.08.08 &  11~219& 11~219& 9634& 9500\\
556141001 & 17.09.08 &  9118& 8200& 7534 & 4500\\
\hline 
\end{tabular}
\tablefoot{The actual 
and filtered exposure times in seconds are given for the two EPIC MOS and for the pn camera respectively.}
\end{table}