\begin{table}%T2
\caption{\label{table:results}{\it HST} photometry of Lutetia.}  
\small
%\centering
\par
\begin{tabular}{c c c c}
\hline\hline \noalign{\smallskip}
Filter & \multicolumn{2}{c}{Measured signal (e s$^{-1}$)} & Model signal \\  
 & Total & Error & (Total e s$^{-1}$) \\
\hline  
 {\it F140LP} & 12.52 & 0.10 & 12.52 \\
 {\it F165LP} & 11.69 & 0.10 & 11.64 \\
 {\it F140LP-F165LP} & 0.828 & 0.141 & 0.879 \\
 {\it F218W} & 33.7 & 1.7 & 33.4 \\
 {\it F255W} & 226 & 7.0 & 226 \\
 {\it F300W} & 9625 & 150 & 9499 \\
 {\it F450W} & 120,160 & 2400 & 122,990 \\
 {\it F606W} & 1.107 $\times$ 10$^{6}$ & 4.42 $\times$ 10$^{3}$ & 1.122 $\times$ 10$^{6}$ \\
 \hline
 \end{tabular}
\end{table}