\begin{table}%t4
\caption{\label{orbspec}Results of the exponentially cutoff power law fits to the  energy spectra. In the bottom table $N_{\rm H}$ was kept fixed.}
%\centerline
 {\small \begin{tabular}{ccccccccc }        
\hline\hline \noalign{\smallskip}  
Bin  &Orbital phase$^{a}$ & $N_{\rm H}^{b}$ & $E_{\rm cut}$ & $E_{\rm fold}$ &  $\Gamma$ & Norm & $F_{3-30}^{(c)}$ & $\chi^{2}_{\nu}$ (d.o.f.) \\[1.5mm]
\hline 
A &0.87/0.93 & $1.54^{\rm +0.89}_{-0.83}$ & $6.34^{\rm +0.68}_{-0.51}$ & 13.34$^{\rm +2,49}_{-1.95}$ & $1.29^{\rm +0.15}_{-0.16}$ & $0.028^{\rm +0.009}_{-0.028}$ & 3.33 & 0.65 (51)\\[1mm]
B &0.06/0.03 & 1.54$^{\rm +0.59}_{-0.58}$ & $6.32^{\rm +0.47}_{-0.38}$ & 14.46$^{\rm +1.93}_{-1.60}$ & $1.32^{\rm +0.10}_{-0.11}$ & $0.032^{\rm +0.007}_{-0.006}$ & 3.67 & 0.72 (51) \\[1mm]
C &0.17/0.09 & 0.63$^{\rm +1.01}_{-0.63}$ & $6.23^{\rm +0.60}_{-0.43}$ & 12.03$^{\rm +2.58}_{-1.55}$ & $1.28^{\rm +0.18}_{-0.13}$ & $0.012^{\rm +0.004}_{-0.002}$ & 1.32 & 0.72 (51) \\[1mm]
D &0.33/0.17 & 0.94$^{\rm +1.01}_{-0.94}$ & $6.13^{\rm +0.63}_{-0.51}$ & 11.99$^{\rm +2.78}_{-2.20}$ & 1.44$^{\rm +0.18}_{-0.20}$ & $0.009^{\rm +0.004}_{-0.003}$ & 0.76 & 1.37 (51) \\[1mm]
E &0.50/0.25 & 0.95$^{\rm +1.11}_{-0.95}$ & $6.24^{\rm +0.45}_{-0.63}$ & 12.24$^{\rm +3.20}_{-2.01}$ & 1.44$^{\rm +0.18}_{-0.17}$ & $0.010^{\rm +0.004}_{-0.003}$ & 0.82 & 0.63 (51) \\
\noalign{\smallskip} \hline \noalign{\smallskip}
A &0.87/0.93 & 0.9 & $6.00^{\rm +0.26}_{-0.27}$ & $11.88^{\rm +0.61}_{-0.57}$ & $1.17^{\rm +0.04}_{-0.04}$ & $0.023^{\rm +0.001}_{-0.001}$ & 3.26 & 0.67 (52)\\[1mm]
B &0.06/0.03 & 0.9 & $5.99^{\rm +0.22}_{-0.21}$ & $12.83^{\rm +0.57}_{-0.53}$ & $1.21^{\rm +0.03}_{-0.03}$ & $0.026^{\rm +0.001}_{-0.001}$ & 3.60 & 0.77 (52) \\[1mm]
C &0.17/0.09 & 0.9 & $6.34^{\rm +0.33}_{-0.33}$ & 12.62$^{\rm +0.93}_{-0.82}$ & $1.33^{\rm +0.04}_{-0.05}$ & $0.013^{\rm +0.001}_{-0.001}$ & 1.33 & 0.63 (52) \\[1mm]
D &0.33/0.17 & 0.9 & $6.12^{\rm +0.33}_{-0.32}$ & 11.87$^{\rm +0.94}_{-0.82}$ & $1.43^{\rm +0.04}_{-0.05}$ & $0.009^{\rm +0.001}_{-0.001}$ & 0.76 & 0.71 (52) \\[1mm]
E &0.50/0.25 & 0.9 & $6.25^{\rm +0.33}_{-0.39}$ & 12.17$^{\rm +1.09}_{-0.96}$ & $1.44^{\rm +0.04}_{-0.06}$ & $0.009^{\rm +0.002}_{-0.001}$ & 0.82 & 1.33 (52) \\
  \hline  
\end{tabular}}
\medskip
$^a$ At mid-point for $P_{\rm orb}=9.56$ d and $2 P_{\rm orb}=19.12$~d, respectively; $^b$ hydrogen column density in units of 10$^{22}$~cm$^{-2}$; $^c$ unabsorbed flux in units of 10$^{-10}$~erg~s$^{-1}$~cm$^{-2}$.
\end{table}