\begin{table}%t1
  \caption{\label{obslog}\XMM{} observation log.}
\par
  %\centerline
{\small
  \begin{tabular}{lcccc}
    \hline
    \hline
    \noalign{\smallskip}
    Orbit & Date & Net exp. time & RGS1 rate\tablefootmark{a} & RGS2 rate\tablefootmark{a} \\
          & (dd-mm-yy) & (ks) & (c/s) & (c/s) \\
    \hline
    1087 & 15-11-05 & 40.6 & 0.73 & 0.82 \\
    1088 & 17-11-05 & 42.5 & 0.61 & 0.68 \\ 
    1089 & 19-11-05 & 25.7 & 0.65 & 0.72 \\
    \hline
    \end{tabular}}
    \tablefoot{\tablefoottext{a}{0.3--2.4~keV.}}
\end{table}