\begin{table}%t1
   \caption{Characteristics of the observations of \HESSJ\ with \HESS\
     \cite{HESS:crab} and \XMM. The ``full'' dataset is what is
     presented here, while the 2006~subset was presented by
     \citet{HESS:scanpaper2}.  The energy range for the \HESS\ case is
     the range used to fit the statistically significant spectral
     points; the full sensitivity of the detector extends to
     approximately 100~TeV.}\label{tab1}
\par
%\centering
\small
     \begin{tabular}{r c c c}
       \hline\hline
       & \HESS & \HESS & \XMM \\
       & (2006) & (full) & \\
       \hline
       Exposure time (h) & 35 & 79 & 4 \\
       Angular Res. (arcmin) & 6 & 6 & 0.1\\
       Field-of-view ($^\circ$) & 5.0 & 5.0 &  0.5 \\ 
       Energy range & 0.35--1.5~TeV   &  0.35--30~TeV & 0.5--10 keV\\
       Energy Res. & 16\% & 16\% & 20--50\%\\
       \hline
     \end{tabular}
 \end{table}