\begin{table}%t1
  \caption{X-ray observations and spectral results.
  \label{tab1}}
%\centerline
 {\begin{tabular}{llll}
  \hline 
  \hline\noalign{\smallskip}
Date & 2005-04-13 & 2005-09-22 & 2005-09-24\\
Mission & \cha & \xmm & \xmm \\
OBSID & 6259 & 0202950201 & 0202950301 \\
Orbital phase & 0.86--0.87 & 0.49--0.53 & 0.02--0.05 \\
MJD$_{\rm start}$ & 53473.116 & 53635.714 & 53637.779 \\
MJD$_{\rm stop}$ & 53473.174 & 53635.897 & 53637.899 \\
$f_{x}$ ($L_{x}$) & $2\pm 1$ (1.5) & 1.18$^{+0.03}_{-0.07}$ (0.9) &
$0.74\pm 0.07$ (0.6)\\
Photon index & $1.1\pm 0.2$ & $1.51\pm 0.02$ & $1.59\pm 0.03$ \\
$N_{\rm H}$ ($phabs$) & $6\pm 1$ & $6.3\pm 0.1$ & $6.2\pm 0.2$ \\
\hline
  \end{tabular}}
\par
\smallskip
 Notes: fluxes and luminosities are given unabsorbed in the
0.3--10 keV energy band in units of $10^{-11}$~erg~cm$^{-2}$~s$^{-1}$
and $10^{34}$~erg~s$^{-1}$, respectively.  The $N_{\rm H}$ units are 
$10^{21}$~cm$^{-2}$.
Quoted errors are at the
1$\sigma$ confidence level. Ephemeris taken from C05.
\par
\end{table}