\begin{table}%T2
\caption{Observation log.}
\label{tab:obslog}
%\centerline
{
\begin{tabular}{|l|r|rrr|rr|rrr|ll|}
\hline\hline
\multicolumn{1}{|l|}{Cluster} & \multicolumn{1}{|l|}{XMM} &
   \multicolumn{3}{|c|}{Exposure time (ks)$^{{a}}$} &
    \multicolumn{2}{|c|}{$H_{\rm t}$$^{{b}}$} &
    \multicolumn{3}{|c|}{Average $H$$^{{c}}$ } &
    \multicolumn{1}{|c}{mode$^{{d}}$} & 
    \multicolumn{1}{c|}{filter$^{{e}}$} \\
name                  & orbit & MOS1 & MOS2 & pn & MOS & pn & MOS1 & MOS2 & pn & pn & \\
\hline
NGC 533               & 195 & 38 & 38 & 31 & 35 & 50 & 21.8 & 22.3 & 28.9 & FF & thin \\
Virgo                 &  97 & 34 & 33 & 25 & 35 & 50 & 25.6 & 26.2 & 36.8 & FF & thin \\
A 262                 & 203 & 24 & 24 & 15 & 35 & 50 & 25.1 & 24.6 & 33.0 & FF & thin \\
A 1837                & 200 & 48 & 48 & 40 & 35 & 50 & 21.5 & 22.3 & 29.7 &EFF & thin \\	  
S\'ersic~159$-$3      &  77 & 31 & 32 & 28 & 35 & 50 & 25.5 & 24.7 & 32.5 & FF & thin \\
MKW 9                 & 311 & 22 & 23 & 13 & 35 & 50 & 27.9 & 28.4 & 31.1 &EFF & thin \\
2A 0335+096           & 215 & 11 & 11 &  5 & 50 & 56 & 28.4 & 29.5 & 27.2 & FF & thin \\
MKW 3s                & 129 & 37 & 37 & 32 & 35 & 50 & 22.1 & 22.5 & 31.2 & FF & thin \\
A 2052                & 128 & 30 & 30 & 23 & 35 & 50 & 21.4 & 21.7 & 29.6 &EFF & thin \\
A 4059                & 176 & 13 & 13 &  6 & 50 & 56 & 33.2 & 32.3 & 34.1 & FF & thin \\
                      & 176 & 21 & 20 &  -- & 40 &  -- & 28.2 & 28.8 &    -- & FF & thin \\
Hydra A  (A 780)      & 183 & 17 & 17 &  3 & 50 & 56 & 32.8 & 32.4 & 31.6 & FF & thin \\
A 496                 & 211 &  9 & 10 &  5 & 35 & 56 & 27.3 & 25.6 & 38.9 &EFF & thin \\
A 3112                & 191 & 22 & 22 & 16 & 35 & 50 & 24.7 & 24.3 & 34.4 &EFF & med  \\
A 1795                & 100 & 29 & 30 & 22 & 35 & 52 & 25.9 & 25.8 & 38.8 & FF & thin \\
A 399                 & 127 & 13 & 13 &  6 & 35 & 50 & 22.2 & 23.9 & 31.3 &EFF & thin \\
A 3266                & 153 & 24 & 24 & 19 & 35 & 50 & 24.0 & 21.7 & 28.9 &EFF & med  \\
Perseus (A 426)       & 210 & 43 & 46 & 33 & 80 & 120& 62.5 & 64.9 & 82.5 & FF & thin \\ 
Coma (A 1656)         &  86 & 15 & 16 & 13 & 35 & 50 & 24.7 & 24.9 & 42.9 & FF & med  \\
A 754                 & 262 & 14 & 14 & 11 & 35 & 50 & 24.2 & 24.6 & 34.4 &EFF & med  \\
A 1835                & 101 &  -- & 26 & 25 & 35 & 50 &    -- & 24.2 & 33.4 & FF & thin \\
\hline
Background            &  --  & 410& 379& 324& 60 & 50 & 23.8 & 23.1 & 30.8 & FF & thin \\ 
\hline
\end{tabular}}
\par
\medskip
$^{{a}}$ Net exposure time, after rejection of soft proton flares.\\
$^{{b}}$ Background rejection threshold for soft proton 
                flares, in counts per 260~s between 10--12~keV.\\
$^{{c}}$ Average background after rejection of
                soft proton flares, in counts per 260~s
                between 10--12~keV.\\
$^{{d}}$ Mode pn: extended full frame (EFF) of full frame (FF).\\
$^{{e}}$ Filter used for MOS and pn.\\
$^{{f}}$ Number of rejected point sources.
\end{table}