\begin{table}%t3
\par
\caption{\label{xfits}\label{tab3}Fits to the X-ray spectra\tablefootmark{a} in the different epochs.}
\small%\centering
\par
\begin{tabular}{lccccccccc}
\hline
\hline\noalign{\smallskip}
Instrument  & Band &  Date &  Model\tablefootmark{b} & $\Gamma_1$ & $E_{\rm break}$    & $\Gamma_2$ 
&$F_{0.1{-}2.0~\rm keV}$\tablefootmark{b}  & $F_{2{-}10~\rm keV}$\tablefootmark{b} & $\chi^2_{\rm r}$~(NDF) \\
\noalign{\smallskip}
          &  keV &      &        &           & keV             &          &  \multicolumn{2}{c}{erg~cm$^{-2}$~s$^{-1}$} &  \\ 
\hline\noalign{\smallskip}
{\tiny XMM Mos2+PN}& {\tiny 0.15--10}  & {\tiny 4/10/04}       & p.l. & $3.04\pm0.02$ & --    &  --		      & 2.46\e{-11} & 1.03\e{-12} & 1.110~(284) \\
            &     &          & b.p.l. & $3.06\pm0.02$ & $2.5\pm0.5$ &  $ 2.64\pm0.20$ & 2.77\e{-11} & 1.19\e{-12} & 1.048~(282) \\    
{\tiny RXTE PCU2} & {\tiny 3--20} & {\tiny 20/8--19/9/05}  & p.l. & -- & -- &   $2.90\pm0.18$ & -- & 7.54\e{-12} & 0.79~(16)\\
\noalign{\smallskip}  
{\tiny XMM Mos+PN}&{\tiny 0.15--10} & {\tiny 26/9/05}      & p.l. & $2.31\pm0.01$ & --  &  --  & 7.55\e{-11} & 1.93\e{-11} & 1.138~(860)    \\
             &     &         & b.p.l. & $2.34\pm0.01$ & $0.79\pm0.11$ &  $ 2.30\pm0.01$ & 7.72\e{-11} & 1.95\e{-11} & 1.122~(858)\\
\noalign{\smallskip}  
{\tiny XMM Mos+PN}&{\tiny 0.15--10}  &{\tiny  28/9/05}     & p.l. & $2.37\pm0.01$ & -- &  -- & 8.01\e{-11} & 1.77\e{-11} & 1.509~(888)  \\
           &       &         & b.p.l. & $2.39\pm0.01$ & $1.78\pm0.15$ &  $ 2.31\pm0.02$ & 8.19\e{-11} & 1.83\e{-11} &  1.372~(886) \\
\hline
\end{tabular}
\tablefoot{\tablefoottext{a}{The errors are reported at a 90\% confidence level for 1 parameter ($\Delta\chi^2=2.71$).}
\tablefoottext{b}{Fits with fixed Galactic $N_{\rm H}=3.93\times10^{20}$~cm$^{-2}$; power-law (p.l.) and broken power-law (b.p.l.) models. Unabsorbed fluxes. } 
}
\end{table}