\begin{table} %t3
\caption{\label{tabfit}Best-fit model for the CCD spectra (90\% conf. ranges).}
\small%\centering
\par
\begin{tabular}{lrrrr}
\hline\hline\noalign{\smallskip}
 & \multicolumn{3}{c}{{\it XMM-Newton}} & {\it Chandra}\\ 
 ObsID & ...301 & ...401 & ...501 & 9938 \\
 \hline
 & \multicolumn{4}{c}{Abundances}\\
 \noalign{\smallskip}
 O  & \multicolumn{4}{c}{$\rm 0.5^{+0.3}_{-0.2}$} \\
 Ne & \multicolumn{4}{c}{$\rm 2.0^{+0.6}_{-0.5}$} \\
 Mg & \multicolumn{4}{c}{$\rm 0.8^{+0.5}_{-0.4}$} \\
 Si & \multicolumn{4}{c}{$\rm 0.2^{+0.2}_{-0.2}$} \\
 S  & \multicolumn{4}{c}{$\rm 0.1^{+0.2}_{-0.1}$} \\
 Fe & \multicolumn{4}{c}{$\rm 0.4^{+0.2}_{-0.1}$} \\
\noalign{\smallskip}
$n_{{\rm H}}$ [$10^{21}$~cm$^{-2}$]& \multicolumn{4}{c}{$1.3\pm0.2$  } \\
$kT_1$ [keV]& \multicolumn{4}{c}{$\rm 0.3^{+0.1}_{-0.3}$} \\
$kT_2$ [keV]& \multicolumn{4}{c}{$\rm 0.6^{+0.1}_{-0.1}$ }\\
$kT_3$ [keV]& \multicolumn{4}{c}{$\rm 2.1^{+0.2}_{-0.1}$} \\
$EM_1$ [$10^{52}$ cm$^{-3}$]& $\rm 6^{+9}_{-6}$ & $\rm 3^{+13}_{-3}$ & $0^{+35}    $ & $\rm 3^{+8}_{-3}$ \\
$EM_2$ [$10^{52}$ cm$^{-3}$]& $\rm 5^{+8}_{-5}$ & $\rm 10^{+8}_{-10}$ & $\rm 12^{+4}_{-4}$ & $\rm 10^{+7}_{-4}$ \\
$EM_3$ [$10^{52}$ cm$^{-3}$]& $\rm 34^{+6}_{-4}$ & $\rm 38^{+6}_{-5}$ & $\rm 60^{+7}_{-7}$ & $\rm 26^{+4}_{-3}$ \\
\noalign{\smallskip}
\multicolumn{5}{c}{unabsorbed luminosities (0.3$-$10 keV)}\\
\noalign{\smallskip}
$\log L_{\rm X}$ [erg s$^{-1}$]& 30.7 & 30.8 & 30.9 & 30.7\\
\noalign{\smallskip}
\multicolumn{5}{c}{$\chi^2=266$  for 254 d.o.f. (red. $\chi^2=1.05$)}\\
\hline
\end{tabular}
\vspace*{4mm}
\end{table}