\begin{table}%t5
\caption{\label{tab:freqprim}Frequencies detected in the pixel-by-pixel intensity variations of the primary component of RS~Cha.  }
\small%\centerline
{
\begin{tabular}{lccc}
 \hline\hline\noalign{\smallskip}
ID      & Freq.    & $A_{\rm PIV}^{{a}}$ & $S/N$\\
       & \cd      & \kms &\\
        \hline
$f_{{\rm orb}}$    &    0.599 & 0.106 & 13.9 \\
$2f_{{\rm orb}}$   &    1.197 & 0.040 & 4.5 \\
$f_1$                 &    21.11 & 0.040 & 4.5 \\  
$f_2$                 &    30.38 & 0.038 & 4.0 \\
\hline 
\end{tabular}}
\smallskip
$^{a}$ $A_{\rm PIV}$ represents the integral of the pixel-amplitude across the line \mbox{profile}.
\end{table}