\begin{table}%t2
\caption{\label{first_orbital_solution}First iteration of orbital parameters of BAT129. The parameters published by Foellmi et~al. (2003b) are also shown for \mbox{comparison}.}
%\centering
\par
\begin{tabular}{lll} 
\hline \hline
Parameter & Foellmi et al. 2003b & This study \\ \hline
$P$ (days)						& 2.7687 $\pm$ 0.0002	& 2.7689 (fixed)  \\
$K_{\rm WR}$ (km~s$^{-1}$)		& 398 $\pm$ 7	 		& 318 $\pm$ 7 \\
$K_{\rm O}$ (km~s$^{-1}$)		& -- 						& 174 $\pm$ 7 \\
$e$  							& 0.082 $\pm$ 0.022  	& 0. (fixed) \\
$E_{0}$ (HJD- 2 451 100.0) 	& 820.47 $\pm$ 0.09	& 846.4468 $\pm$ 0.009 \\
$\gamma$	 (km~s$^{-1}$)		& 245 $\pm$ 15 			& 270 $\pm$ 5 \\
$\omega$	 ($^\circ$)			& 342 $\pm$ 12 			& 270 (fixed)\\
$a_{\rm WR}\sin~i$ ($R_{\odot}$)		& -- 						& 17.5 $\pm$ 0.5 \\
$a_{\rm O}\sin~i$ ($R_{\odot}$)		& -- 						& 9.5  $\pm$ 0.6 \\ 
$\sigma$(O--C)$_{\rm WR}$ (km~s$^{-1}$) &		--			& 39 \\ 
$\sigma$(O--C)$_{\rm O}$ (km~s$^{-1}$) &		--	& 17 \\ 
\hline
\end{tabular}
\end{table}