\begin{table}%t2
   	 \caption{$3-\sigma$ Upper limits to the X-ray flux of 
	 \object{LBQS 2212-1759} derived from the EPIC-pn observations.}
   	    \label{xlim}
   	    %\centering
\par
	 \begin{tabular}{c c c} % 3 columns 	 
         \hline\hline
energy band  &  Count rate               & Flux                                    \\
  (keV)      & (${\rm 10^{-5}~s^{-1}}$) & (${\rm 10^{-16}~erg~cm^{-2}~s^{-1}}$)\\
         \hline
0.2--0.5     &  ${\leq} 9.03$              & ${\leq} 1.69$                             \\
0.5--2.0     &  ${\leq} 9.25$              & ${\leq} 2.74$                             \\
2.0--10.0    &  ${\leq} 8.65$              & ${\leq} 14.2$                             \\
5.0--10.0    &  ${\leq} 6.16$              & ${\leq} 20.1$                             \\
0.2--10.0    &  ${\leq} 1.48$              & ${\leq} 0.64$                             \\
	\hline                  
	\end{tabular}
	\end{table}