\begin{table}%t1
\caption{Journal of radial velocity measurements. The minimum and maximum $S/N$ of spectra 
obtained during the night is given. The dispersion~$\sigma_{{\rm rms}}$ is strongly dominated 
by the seismic signal and do not reflect the precision of individual points.}\label{tab1}
%\centering
\par
\begin{tabular}{ccccc} 
\hline \hline
Date & Nb spectra & Nb hours & $S/N$ & $\sigma_{{\rm rms}}$ [\ms] \\ 
\hline
2004/06/03 & 279 & 10.32 & 105--181 & 2.49 \\
2004/06/04 & 274 & 10.19 & 65--237 & 1.71 \\
2004/06/05 & 285 & 10.34 & 77--239 & 1.79 \\
2004/06/06 & 286 & 10.38 & 132--235 & 2.03 \\
2004/06/07 & 275 & 10.35 & 43--263 & 2.20 \\
2004/06/08 & 229 & 8.43 & 24--233 & 2.04 \\
2004/06/09 & 202 & 7.43 & 57--147 & 1.65 \\
2004/06/10 & 274 & 10.42 & 32--186 & 1.49 \\ 
\hline
\end{tabular}
\end{table}