\begin{table}%t1
\caption{\label{tabobs}Details of {\em XMM-Newton} instrument exposures.}
%\centerline
{\small
\par
\begin{tabular}{lllcc}
\hline\hline
Instrument & Mode & Filter & Time (s) & Time (s) \\
           &      &        & Scheduled & Effective \\
\hline 
EPIC-pn   & Small Window & Thin         & 37511 & 24609$^{a}$ \\
EPIC-MOS1 & Small Window & Thick        & 37660 & 36476 \\
EPIC-MOS2 & Full Frame   & Thin         & 37672 & 34114 \\
RGS1      & Spectroscopy & --           & 37917 & 36141 \\
RGS2      & Spectroscopy & --           & 37913 & 36145 \\
OM        & Image        & U            &  1000 & \\
OM        &              & UVW1         &$2\times1000$ & \\
OM        &              & UVM2         &$2\times1000$ & \\ 
OM        &              & UVW2         &$2\times1000$ & \\
OM        &              & UV Grism     &$19\times1000$ & \\
\hline  
\end{tabular}}
\smallskip
\par
$^{a}$~The live time of the EPIC-pn small window mode is 0.71.
\end{table}