\begin{table}%t1
%\centering
\par
\caption{Log of the 1997/1998 year spectroscopic observations.
The rotation phases are given according to ephemeris
of Kurtz et~al. (\cite{kur89}). $N$ is the number of RV points obtained per night.\label{tab1}}
\begin{tabular}{lllll}
       \hline\hline
 Date &\multicolumn{2}{c}{HJD~2450000+} & Phase& $N$ \\
 (UT) & Start &End          &       &    \\
       \hline
 16 Dec. 97& 798.6183 & 798.8618  &0.4817& 228  \\
 17 Dec. 97& 799.6112 & 799.8737  &0.5621& 277  \\
 18 Dec. 97& 800.6047 & 800.8578  &0.6415& 269  \\
 19 Dec. 97& 801.6182 & 801.8630  &0.7225& 263  \\
 20 Dec. 97& 802.6104 & 802.7793  &0.7991& 169  \\
 22 Dec. 97& 804.6091 & 804.8561  &0.9627& 258  \\
 30 Jan. 98& 843.5753 & 843.7571  &0.0881& 156  \\
 1  Feb. 98& 845.5556 & 845.7688  &0.2483& 236  \\
 2  Feb. 98& 846.5714 & 846.7700  &0.3293& 219  \\
    \hline
\end{tabular}
\end{table}