\begin{table}%t2
%\centering
\par
\caption{Periodicities identified using pre-whitening analysis for the HST FOS
light curve, during the {\it sforzando}, in 1996, both for the total UV
(1196--2484~\AA)
and zeroth-order light obtained with HST FOS. The times of maxima ($T_{\rm max}$)
for UV and zeroth-order data are given in relation to $T_0=2~450~311.8058746$~BCT.\label{tab3}} 
\begin{tabular} {ccccc}
\hline\hline
Period & Amplitude (UV) & $T_{\rm max}$ & Amplitude 
($3400~$\AA)&$T_{\rm max}$ \\
(s) & (mma) & (s)&(mma) & (s)     \\
\hline
464.248 & $9.80\pm0.62$ & $132.3\pm4.7$ & $4.97 \pm 
0.40$ & $140.7 \pm 6.0$\\
423.200 & $22.51\pm0.62$ & $187.5\pm1.9$ &$ 11.01 \pm  
0.40$ & $191.0 \pm 2.5$ \\
\hline
\end{tabular}
\end{table}