\begin{table}%t5
\caption{Best-fit parameters for EPIC spectra of HD~168112 in the case of a {\tt wabs$_{{\rm ISM}}$*wind*(2-T mekal)} model. Results are given for combined MOS, pn, and combined EPIC~spectra. The upper and bottom parts of the table concern the first and second observation respectively. The ISM absorption component ({\tt wabs$_{{\rm ISM}}$}) is frozen at 0.58~$\times$ 10$^{22}$~cm$^{-2}$. The quoted circumstellar absorption column is ionized, with~$N_{\rm W}$ expressed in~cm$^{-2}$. The last column gives the observed flux between 0.4 and 10.0~keV for each fitting result. The normalization parameter (Norm) of the {\tt mekal} component is defined as $(10^{-14}/(4~\pi~D^2))\int{n_{\rm e}~n_{\rm H}~{\rm d}V}$, where~$D$, 
$n_{\rm e}$ and $n_{\rm H}$ are respectively the distance to the source (in~cm), and the electron and hydrogen number densities (in~cm$^{-3}$). The error bars represent the 1-$\sigma$ confidence interval.\label{fitwTT}}
%\centering
\par
\begin{tabular}{cccccccc}
\hline
\hline
	& ${\rm Log}\ {{N}_{\rm W}}$ & {\it kT}$_1$ & Norm$_1$ & {\it kT}$_2$ & Norm$_2$ & $\chi^2_\nu$ & Obs.~flux \\
	&  & (keV) &  & (keV) &  & d.o.f. & (erg~cm$^{-2}$~s$^{-1}$)\\
\hline
MOS1 + MOS2 & 21.90 & 0.29 & 5.36 $\times$ 10$^{-3}$ & 2.72 & 3.33 $\times$ 10$^{-4}$ & 0.98 & 
4.77 $\times$ 10$^{-13}$\\ 
	& $\pm$0.07 & $\pm$0.02 & $\pm$2.93 $\times$ 10$^{-3}$ & $\pm$0.62 & $\pm$1.01 $\times$ 10$^{-4}$ & 174 & \\
\hline
pn	& 21.89 & 0.27 & 5.59 $\times$ 10$^{-3}$ & 2.00 & 4.77 $\times$ 10$^{-4}$ & 1.07 & 
4.78 $\times$ 10$^{-13}$\\ 
	& $\pm$0.07 & $\pm$0.02 & $\pm$3.29 $\times$ 10$^{-3}$ & $\pm$0.33 & $\pm$1.14 $\times$ 10$^{-4}$ & 136 & \\
\hline
MOS1 + MOS2 & 21.90 & 0.28 & 5.57 $\times$ 10$^{-3}$ & 2.29 & 4.06 $\times$ 10$^{-4}$ & 1.01 & 
4.79 $\times$ 10$^{-13}$ \\
+ pn & $\pm$0.05 & $\pm$0.02 & $\pm$2.25 $\times$ 10$^{-3}$ & $\pm$0.31 & $\pm$0.76 $\times$ 10$^{-4}$ & 315 &  \\
\hline
\hline
MOS1 + MOS2	& 21.88 & 0.26 & 5.14 $\times$ 10$^{-3}$ & 2.36 & 2.93 $\times$ 10$^{-4}$ & 0.90 & 
3.59 $\times$ 10$^{-13}$\\ 
	& $\pm$0.08 & $\pm$0.02 & $\pm$3.44 $\times$ 10$^{-3}$ & $\pm$0.49 & $\pm$0.82 $\times$ 10$^{-4}$ & 116 & \\
\hline
pn	& 21.96 & 0.25 & 6.68 $\times$ 10$^{-3}$ & 2.16 & 2.97 $\times$ 10$^{-4}$ & 1.01 & 
3.34 $\times$ 10$^{-13}$\\ 
	& $\pm$0.06 & $\pm$0.01 & $\pm$3.06 $\times$ 10$^{-3}$ & $\pm$0.42 & $\pm$0.83 $\times$ 10$^{-4}$ & 89 & \\
\hline
MOS1 + MOS2 & 21.93 & 0.25 & 6.14 $\times$ 10$^{-3}$ & 2.23 & 2.97 $\times$ 10$^{-4}$ & 0.94 & 
3.44 $\times$ 10$^{-13}$ \\
+ pn & $\pm$0.05 & $\pm$0.01 & $\pm$2.41 $\times$ 10$^{-3}$ & $\pm$0.32 & $\pm$0.59 $\times$ 10$^{-4}$ & 210 &  \\
\hline
\end{tabular}
\end{table}