\begin{table}%t10 \caption{\label{table8}Elements of the astrometric orbit obtained from our spectral analysis (first row) and by Kraus et~al. (2009).} \par %\centerline { \small\begin{tabular}{ccccccc} \hline \hline $P$ [yr]&$T$ [yr]&$e$&$\Omega$ [$^{0}$]&$\omega$ [$^{0}$] &$i[^{0}$] &$a$ [mas]\\ \hline 11.0(3)&2002.8(6)&0.61(8)&26(5)&287(8)&99(2)&44(5)\\ 11.3(5)&2002.6(5)&0.59(7)&27(2)&286(9)&99(3)&44(3)\\ \hline \end{tabular}}\vspace*{1.5mm} \end{table}