\begin{table}%t2
\caption{\label{results}System parameters for \object{EXO~1722--363}.} 
%\centerline
 {
\begin{tabular}{llll} \hline\hline
\noalign{\smallskip}
Parameter & \multicolumn{2}{c}{Value} & Ref. \\ \hline
{\it Observed}     		&	&	& \\
$a_{\rm X} \sin i$ / lt s 	& \multicolumn{2}{c}{$101 \pm 1$}		& [1]\\
$P$ / d				& \multicolumn{2}{c}{$9.7403 \pm 0.0004$}	& [1]\\
$T_{90}$ / HJD		& \multicolumn{2}{c}{$53~761.68 \pm 0.04$}	        & [1]\\	
$e$				& \multicolumn{2}{c}{$<$0.19}	& [1]\\	
$\theta_{\rm e}$ / deg		& \multicolumn{2}{c}{$31.8 \pm 1.8$}		& [2]\\	
$K_{\rm O}$ / km s$^{-1}$	& \multicolumn{2}{c}{$24.5 \pm 5.0$} 		& [3]\\
{\it Assumed}     		&	&	& \\
\bf{$\Omega$}			& \multicolumn{2}{c}{=1}		     \\
{\it Inferred} & & & \\
$K_{\rm X}$ / km s$^{-1}$	& \multicolumn{2}{c}{$226.1 \pm 6.7$}  		\\
$q$				& \multicolumn{2}{c}{$0.107 \pm 0.022$}  \\
$\beta$				& $1.000$ 	& $0.916 \pm 0.047$	 \\
$i$ / deg			& $75.2 \pm 4.6$& $90.0$                 \\
$M_{\rm X}$ / $M_{\odot}$	& $1.63 \pm 0.38$ & $1.46 \pm 0.38$	 \\
$M_{\rm O}$ / $M_{\odot}$	& $15.2 \pm  1.9$ & $13.6 \pm 1.6$	 \\
$a$ / $R_{\odot}$ & $49.1 \pm 9.1$ & $47.3 \pm 8.8$  \\
$R_{\rm L}$ / $R_{\odot}$	& $28.0 \pm 5.3$  & $27.0 \pm 5.0$   \\
$R_{\rm O}$ / $R_{\odot}$	& $28.0 \pm 5.3$  & $24.7 \pm 4.7$	     \\ \hline
\end{tabular}}
\tablefoot{[1] Thompson et al. 2007; [2] Corbet et al. 2005; [3] this paper.}
\end{table}