\begin{table}%t3
\caption{\label{tab.orbits}Orbital parameters of spectroscopic binaries.}
%\centering
\small
\begin{tabular}{lrrrrrrrcr} 
\hline \hline
Star  &  $T_{\rm per}$ & $T_{\rm conj}$&$V_\gamma$  &$K$    &$\omega$ &$e$       &$P$ & $\sigma$ & $N$   \\
      & --2~450~000 & --2~450~000 & \kms   & \kms    & rad      &          & d &  \kms    &     \\      \hline
W42  &  3381    &  3498      &  5.29     &  12.4     &  0.76     &  0.316     &  1740       & 1.7 &  95   \\ 
     &  $\pm$37 &  $\pm$17   & $\pm$0.34 & $\pm$0.6  & $\pm$0.12 & $\pm$0.043 &  $\pm$22    &     &     \\
W47  &  4839    &  5040      &  6.81     &  6.9      &  0.4      &  0.12      &  1338       & 1.0 &  23   \\ 
     & $\pm$344 &  $\pm$52   & $\pm$0.41 & $\pm$1.3  & $\pm$1.6  & $\pm$0.19  &  $\pm$71    &     &     \\
W57  &  3602.33 &  3601.440  &  3.96     &  44.53    &  3.94     &  0.029     &  2.403362   & 0.60&  17   \\ 
     & $\pm$0.09&  $\pm$0.005& $\pm$0.20 & $\pm$0.29 & $\pm$0.22 & $\pm$0.006 &$\pm$0.000019&     &     \\
W61  & ...      &  3501.1397 &  7.47     &  52.84    &  ...      &  0.000     &  1.923291   & 1.4 &  27   \\ 
     & ...      &$\pm$0.0024 & $\pm$0.27 & $\pm$0.35 &  ...      &  ...       &$\pm$0.000010&     &     \\
W86  & 3689.782 &  3689.667  &  5.23     &  19.15    &  8.10     &  0.267     &  5.400945   & 0.34&  16   \\ 
     &$\pm$0.029&  $\pm$0.012& $\pm$0.10 & $\pm$0.15 & $\pm$0.03 & $\pm$0.008 &$\pm$0.000040&     &     \\
W96  &  3503.05 &  3506.59   &  6.66     &  14.96    &  6.88     &  0.387     &  51.416     & 0.7 &  32   \\ 
     & $\pm$0.42&  $\pm$0.20 & $\pm$0.17 & $\pm$0.29 & $\pm$0.05 & $\pm$0.015 &  $\pm$0.007 &     &     \\
E57  &  3786.8  &  3735.9    &  5.0      &  11.9     &  4.22     &  0.623     &  191.41     & 0.7 &  28   \\ 
     & $\pm$5.2 &  $\pm$5.2  & $\pm$0.5  & $\pm$1.1  & $\pm$0.02 & $\pm$0.023 & $\pm$0.40   &     &     \\
HD~224113A  &  3782.811  &  3782.053    &  2.5      &  84.8    &  3.6    &  0.059    & 2.44508387  &  2.7  &  11   \\  
           & $\pm$0.081 &  $\pm$0.021  &  $\pm$1.9 & $\pm$3.5 &$\pm$0.4 & $\pm$0.029&  ...        &       &       \\
HD~224113B  &            &              &           &  191.5   &         &           &             &  9.2  &       \\
           &            &              &           &  $\pm$8.3&         &           &             &       &       \\ 
\hline
\end{tabular}
\end{table}