\begin{table}
\small
\caption{\label{data} Details of the observations. }
%\centerline
{\begin{tabular}{llcccccc}
\noalign{\smallskip} \hline \hline \noalign{\smallskip}
\multicolumn{1}{c}{Orbit} & \multicolumn{1}{c}{Observing date} &
\multicolumn{1}{c}{PN mode} &
\multicolumn{1}{c}{Filter} & \multicolumn{1}{c}{Duration} &
\multicolumn{1}{c}{}Live time & \multicolumn{1}{c}{count rate} &
\multicolumn{1}{c}{source count rate} \\
\multicolumn{1}{c}{  } & \multicolumn{1}{c}{(UT)} &
\multicolumn{1}{c}{ } &
\multicolumn{1}{c}{ } & \multicolumn{1}{c}{[ ks ]} &
\multicolumn{1}{c}{[ ks ]} & \multicolumn{1}{c}{on chip} &
\multicolumn{1}{c}{[0.6$-$10 keV]$^{\clubsuit}$} \\
\noalign{\smallskip} \hline \noalign{\smallskip}
 084 & May 25, 2000: 03:53--10:11 & Timing & Thick &
   22.4 & 16.78 & 373.3 & 221.6$\pm$0.1\\
 546 & Dec. 1, 2002: 23:18--18:44$^{\dagger}$ & Timing & Medium &
   71.2  & 59.00 & 303.9 & 176.9$\pm$1.3\\
 807 & May 6, 2004: 02:38--21:11 & Timing & Medium &
 66.7 & 25.63 & 841.3  & 491.7$\pm$0.2\\
\noalign{\smallskip}\hline\\[-3mm]
%\medskip
\multicolumn{8}{l}{$^{\dagger}$ Next day.} \\
\multicolumn{8}{l}{$^{\clubsuit}$ Background subtracted source count rate for the spectral fit. }
\end{tabular}}
\end{table}