\begin{table}%T6
%\centering
\par
  \caption{Orbital elements from {\tt SBOP} fitting to RVs made by 
   cross-correlation of all spectra with the 103-spectrum composite
   (cf. Table~\ref{tab-orbelm}).  $P=8\fd32457$. The 
   fitting was made for all RVs (Col.~2) and for nightly averages (Col.~3).
   In the last column $\sigma$ is rescaled to single velocity 
   measurements for comparison purposes.
  \label{tab-orbelm2}
  }
  \hspace{0cm}
  \begin{tabular}{l r r r}
   \noalign{\smallskip}
   \hline \hline
   \noalign{\smallskip}
                    & RVs (all data)             & RVs (nightly avg.)               \\ \hline
$t_{\rm peri}$ (HJD)& $2~445~406.06\pm 0.77 $        & $2~445~405.92\pm 0.69 $        \\
  \emph{e}          & $0.030 \pm 0.014 $               & $0.026 \pm 0.011 $               \\
  $\omega$          & $2\degr\pm 33\degr$              & $-3\degr\pm 30\degr$            \\
  $K_{\rm A}$       & $47.8\pm 0.8$~\kms              & $47.8\pm 0.6$~\kms                \\
  $a_{\rm A}\sin i$ & $5.47\pm 0.10\times10^6$~km     & $5.47\pm 0.07\times10^6$~km       \\
  $f(M)$            & $0.0939\pm 0.0050~{M}_\odot$ & $0.0941\pm 0.0038~{M}_\odot$ \\
  $\sigma$  (\kms)  & 5.1                              & 3.9                          \\
  \# obs            & 125                              & 14                               \\
   \noalign{\smallskip}
   \hline
  \end{tabular}
\end{table}