\begin{table}%t1
%\centering
\par
\caption{Spectral fit parameters. The given fluxes are corrected for
  an encircled energy fraction of 85\%. The errors are the 1$\sigma$ 
confidence level.}\label{tab:param}
\begin{tabular}{cc}
\hline
\hline
\multicolumn{2}{c}{Power-law Model}\\
\hline
$N_{\rm H}$ & $\rm 21_{-1}^{+4}\times 10^{22}$ cm$^{-2}$\\
$\Gamma$ & $\rm 1.6_{-0.1}^{+0.2}$\\
$\chi^2$ & 55.9 (69 d.o.f.)\\
2$-$10 keV unabsorbed flux& $1.7\times 10^{-11}$ erg/s/cm$^2$\\
\hline
\multicolumn{2}{c}{Comptt}\\
\hline
$N_{\rm H}$ & $14\pm2\times 10^{22}$ cm$^{-2}$\\
$kT_{{\rm seed}}$ & $\rm 1.6_{-0.3}^{+0.5}$ keV\\
$kT_{{\rm e}}$ & 10 keV fixed\\
$\tau$ & $\leq$$ 3.35$ (3 $\sigma$)\\
$\chi^2$ & 56.2 (68 d.o.f.)\\
2$-$10 keV unabsorbed flux&$1.1 \times 10^{-11}$ erg/s/cm$^2$\\
\hline
\end{tabular}
\end{table}