\begin{table}%t4
\caption{Frequencies, amplitudes and phases derived from the Fourier analysis of the SAAO 1999 data.
The uncertainty of the frequency is less than 0.04~d$^{-1}$. Phase is relative to $T_{0}$~= 1289.3706 ($\Delta {\rm HJD}$).}\label{f99}
%\centering
\par
\begin{tabular}{llcccc}
\hline\hline
 {\bf year} &Frequency & Period &Amplitude & Phase &  Conf\\
 {\bf 1999}  &(d$^{-1}$)  &  (min)   & (km~s$^{-1}$)  & & $>$$\%$ \\
\hline
& $f_{1}$:~~33.289 &43.257&  1.320 &  0.864 & 99.9\\
& $f_{2}$:~~35.606 &40.443&  0.474 &  0.247 & 99.9\\
& $f_{3}$:~~28.503 &50.521&  0.195 &  0.958 & 99.9\\
& $f_{4}$:~~30.954 &46.521&  0.139 &  0.605 & 99.0\\
& $f_{5}$:~~33.862 &42.525&  0.099 &  0.423 & 99.0\\
& $f_{6}$:~~32.616 &44.150&  0.105 &  0.491 & 99.0\\
& $f_{7}$:~~34.88  &41.28& 0.1      &     & \\
& $f_{8}$:~~35.28  &40.82&  0.05     &     & \\
\hline
\end{tabular}
\end{table}