\begin{table}%t4
%\centering
\par
\caption{Results from the Fourier analysis applied to the {$uvby$} data 
collected in the year 2000.\label{tab4}}
\begin{tabular}{lrrrrrrrrrrrr}  
\hline\hline
~ & \multicolumn{2}{c}{{~~~~$u$}} & \multicolumn{2}{c}{{$v$}} &
\multicolumn{2}{c}{{$b$}} & \multicolumn{2}{c}{{$y$}} 
& \multicolumn{2}{c}{{$b$$-$$y$}} & \multicolumn{2}{c}{{\em $c_1$}}\\ \hline 
Frequency & $A$~~~ & $\varphi$~~ &$A$~~~ & $\varphi$~~ &
$A$~~~ & $\varphi$~~ &$A$~~~ & $\varphi$~~ 
&$A$~~~ & $\varphi$~~ &$A$~~~ & $\varphi$~~ \\
~~~(cd$^{-1}$)& (mmag) & (rad) &(mmag) & (rad) &
(mmag) & (rad) &(mmag) & (rad) 
&(mmag) & (rad)&(mmag) & (rad) \\ \hline
~ & $\pm$0.96 &~& $\pm$0.67 &~& $\pm$0.56 &~& $\pm$0.47 
&~&$\pm$0.27 &~&$\pm$0.91 &~\\
$f_1=5.3745$   &98.17 &3.314 &126.94 &3.248 &105.09 &3.230 &83.91 &3.201 &21.34 &3.341 &51.05 &0.019 \\
~              &~     &   11 &~      &    6 &~      &    6 &~     &    6 &~     &   14 &~     &   20 \\
$2f_1=10.7490$ &12.51 &3.045 & 16.06 &2.863 & 13.61 &2.840 &11.07 &2.879 & 2.59 &2.671 & 6.51 &5.701 \\
~              &~     &   81 &~      &   44 &~      &   43 &~     &   45 &~     &  108 &~     &  145 \\
$f_2=5.8332$   &11.05 &4.867 & 14.89 &4.817 & 12.66 &4.839 &10.01 &4.912 & 2.77 &4.576 & 6.15 &1.538 \\
~              &~     &   85 &~      &   44 &~      &   43 &~     &   46 &~     &   94 &~     &  144 \\ 
~&~&~&~&~&~&~&~&~&~&~&~&~\\
mean value & 0.8422 & ~ & 0.8774 & ~ & 0.7386 & ~ & 0.6034& ~ & 0.1353& ~ & $-$0.1738& ~ \\
(mag)      &  7 & ~ &  5 & ~ &  4 & ~ & 4 & ~ & 2 & ~ & 7 & ~ \\
residuals & 12.5 & ~ & 8.7 & ~ & 7.2 & ~ & 6.1 & ~ & 3.5 & ~ & 11.8 & ~ \\
(mmag)&~&~&~&~&~&~&~&~&~&~&~&~\\
$T_{\rm or}$(HJD) & 2451461.4245 &~&~&~&~&~&~&~&~&~&~&~\\ 
\hline
\end{tabular}
\end{table}