\begin{table}%T3
\caption{Reflection component: fits of the MECS and PDS data ($1.65{-}220$~keV). A stands for
  photoelectric absorption, PL for power law, {\sc pexrav} for the Compton
  reflection from cold material and {\sc compha} for the thermal 
Comptonisation 
  model. $\Gamma$ is the photon index of  the primary power law, $E_{\rm c}$ is
  the folding (upper cutoff) energy, $R$ is  
  the normalization of the reflection component, $kT_{\rm e}/m_{\rm e}c^2$ is the corona
  temperature (normalized to the electron mass), $\tau$ is the corona 
optical depth,
  $E_{\rm Fe}$ is the Fe~K$\alpha$ 
  line energy (rest frame) and $EW_{\rm Fe}$ its equivalent width.
    As $N_{\rm H}$ is not constrained above 1.65~keV, we fixed it to the
  Galactic value. In addition, the results of a fit of the {\it
  XMM-Newton} data above 2~keV are presented.}\label{Tab3}
%\centerline
{
%\addtolength{\tabcolsep}{-2pt}
\begin{tabular}{llcccccccc}
\hline
\hline
%\rule[-0.5em]{0pt}{1.6em}
Obs. & Model  & $\Gamma$ & $E_{\rm c}$ & $R$ & $kT_{\rm e}/m_{\rm e}c^2$ & $\tau$ &$E_{\rm Fe}$& $EW_{\rm Fe}$ & $\chi^2$(d.o.f.), proba.  \\ 
\hline
%\rule[-0.5em]{0pt}{1.6em}
&&& keV &&&& keV & eV &\\
\hline
{\it SAX} 2001&A+PL  & $\rm 1.83^{+0.03} _{-0.03}$ &--&--&--&--&--&--&137.47(93), 0.002\\ 
&A+PEXRAV+G  & $\rm 2.00^{+0.03} _{-0.03}$ & $\rm 487.17^{+\it u} _{-304.40}$ & $\rm 1.74^{+0.25} _{-0.32}$ &--&--& $\rm 6.51^{+0.42} _{-0.55}$ & 71.30& 100.38(89),
0.192 \\
&A+COMPHA+G &--&--& $\rm 3.22^{+0.99} _{-1.35}$& $\rm 0.32^{+0.04} _{-\it u}$& $\rm 0.15^{+0.33} _{-0.08}$& $\rm 6.52^{+0.18} _{-0.18}$&70.30&100.39(89), 0.192\\  
\hline 
{\it SAX} 1997&A+PL  & $\rm 1.74^{+0.09} _{-0.08}$ &--&--&--&--&--&--& 48.36(53), 0.655\\ 
&A+PEXRAV+G  & $\rm 1.77^{+0.70} _{-0.13}$ & 240.00$^f$ & $<$8.78 &--&--&6.40$^f$& $<$1&48.16(51), 0.587\\
&A+COMPHA+G  &--&--&2.50$^f$& $\rm 0.48^{+0.04} _{-\it u}$& $\rm 0.05^{+\it u} _{-u}$&6.40$^f$&$<$1&47.66(51), 0.607\\ 
\hline
{\it SAX} 2002&A+PL  & $\rm 1.69^{+0.07} _{-0.07}$&--&--&--&--&--&--& 49.91(53), 0.595\\ 
&A+PEXRAV+G  & $\rm 1.80^{+0.25} _{-0.16}$ & $\rm 228.30^{+\it u} _{-193.00}$ & $<$3.47 &--&--&6.40$^f$&34.90& 46.89(50), 0.599 \\
&A+COMPHA+G &--&--& $\rm 2.43^{+4.41} _{-1.97}$& $\rm 0.37^{+0.13} _{-0.09}$& $\rm 0.19^{+\it u} _{-u}$&6.40$^f$&38.90&46.27(50), 0.624\\ 
\hline
{\it XMM} 2000&A+PEXRAV+G  & $\rm 1.73^{+0.14} _{-0.14}$ & 500.00$^{f}$ & $\rm 0.48^{+1.09} _{-0.48}$ &--&--&6.40$^f$&75& 75.24(54), 0.029\\
\hline
\end{tabular}}
\medskip
$^f$ Parameters fixed in the fit. \\
$^u$ Unbounded parameters.
\end{table}