\begin{table}%t2
%\centering
\par
\caption{\label{frequency}Fourier amplitudes, phases and
identification(s) for the  PAIX data of the star  S~Arae.}
\begin{tabular}{rrrr}
\hline \hline \noalign{\smallskip}
ID & Frequency & Amplitude & Phase \\
 & c/d & mag & cycles \\
\hline 
\multicolumn{3}{l}{Main frequency and harmonics}\\
$f_1$&	2.2127&	 0.3786 &	 0.3944\\
$2f_1$&	4.4254&	 0.1762 &	 0.0429 \\
$3f_1$&	6.6393&	 0.1171 &	 0.4139 \\
$4f_1$&	8.8510&	 0.0742 &	 0.2472 \\
$5f_1$&	11.0640&	 0.0477 &	 0.8300 \\
$6f_1$&	13.2772&	 0.0325 &	 0.2515 \\
$7f_1$&	15.4891&	 0.0262 &	 0.7871 \\
$8f_1$&	17.7019&	 0.0225 &	 0.3477 \\
$9f_1$&	19.9194&	 0.0106 &	 0.9005 \\
$10f_1$&22.1304&	 0.0095 &	 0.2901 \\
$14f_1$&	30.9774&	 0.0052 &	 0.1188 \\
$16f_1$&	35.4040&	 0.0038 &	 0.8746 \\
$17f_1$&	37.6174&	 0.0034&	 0.0080 \\
$18f_1$&	39.8299&	 0.0030 &	 0.5157 \\
\hline
\multicolumn{3}{l}{Blazhko modulation frequency}\\
$f_{\rm b}$&	0.0206&	 0.02038 &	 0.5308 \\
\hline
\multicolumn{3}{l}{Modulation triplet frequencies}\\
$f_1-f_{\rm b}$&      2.1921&	 0.0482 &	 0.3745 \\
$2f_1+f_{\rm b}$&	4 .4475&	 0.0216 &	 0.2109 \\
$3f_1+f_{\rm b}$&	 6.6598&	 0.0312 &	 0.3859 \\
$4f_1+f_{\rm b}$&	 8.8709&	 0.0241 &	 0.2574 \\
$5f_1+f_{\rm b}$&	11.0833&	 0.0213 &	 0.0969 \\
$6f_1+f_{\rm b}$&	13.2969&	 0.0189 &	 0.4058 \\
$7f_1-f_{\rm b}$&	15.4701&	 0.0158 &	 0.8672 \\
$8f_1-f_{\rm b}$&	17.6824&	 0.0148 &	 0.9526 \\
$9f_1+f_{\rm b}$&	19.9441&	 0.0147 &	 0.8734 \\
$10f_1+f_{\rm b}$&	22.1577&	 0.0127 &	 0.5005 \\
$11f_1+f_{\rm b}$&	24.3713&	 0.0100 &	 0.9729 \\
$12f_1+f_{\rm b}$&	26.5837&	 0.0081 &	 0.7888 \\
$13f_1+f_{\rm b}$&	28.7973&	 0.0068 &	 0.2861 \\
$15f_1+f_{\rm b}$&	33.2218&	 0.0047 &	 0.8947 \\
\hline
\end{tabular}
\end{table}