\begin{table}%t3
%\centering
\par
\caption{X-ray luminosities (corrected for interstellar absorption) of
  HD~223460 in the 0.3$-$2~keV and 2$-$10~keV measured with
  the combined EPIC MOS and pn cameras. The percentage contribution
  in luminosity of hot plasmas ($kT>$ 1 ~keV) is indicated between
  bracketts. The hardness ratio ($hr$) is defined as $hr = (L_{\rm >2~
 ~keV}-L_{\rm 0.3-2~~keV})/(L_{\rm >2 ~keV}+L_{\rm 0.3- 2~keV})$.\label{tab3}}
\begin{tabular}{c c c c}
\hline
\hline
Obs. & $L_{\rm 0.3-2 ~keV}$ & $L_{\rm >2~~keV}$ & $hr$ \\
        & (10$^{30}$ erg s$^{-1}) $ & (10$^{30}$ erg s$^{-1}$) & \\
\hline
Rev. 107    & 27.0 & 10.7 & --0.43 \\
        & (78\%) & (98\%) & \\
%\hline
Rev. 200    & 22.7 &  7.3 & --0.51 \\
        & (78\%) & (98\%) & \\
\hline
\end{tabular}
\end{table}