\begin{table}%t1
\caption{\label{t:obs_log}\xmm\ observation log.}
%\centerline
{\begin{tabular}{llllc}
\hline
\hline
\noalign{\smallskip}
Orbit & Exp  & Exp net & Date			& \epi\ rate\\
	& (ks) &  (ks) & dd-mm-yy &		c/s (0.3--10~keV)\\
	\hline
1087 &	59.3	& 27.4 &	$15-11-05$	& 25.7\\
1088 &	59.7 	& 32.0 &	$17-11-05$	& 21.6\\
1089 &  38.0  	& 15.5 &	$19-11-05$	& 23.5 \\
\hline
\end{tabular}}
\par
\tablefoot{The orbit number, the nominal exposure, the net exposure, the date and the 2--10~keV \epi\
background-subtracted count rates are listed.}%\vspace{-2mm}
\end{table}