\begin{table}%t2
%\centering
\par
\caption{\label{tab2}Properties of He~I lines measured in du Pont echelle spectra of RV Oct.}
\small \begin{tabular}{lllllllllll}
\hline\hline\noalign{\smallskip}
WL& Terms & $\langle $RV$\rangle $& $\sigma $& $\langle $EW$ \rangle $& $\sigma $& $\langle FWHM \rangle$&  $\sigma $& $I_{\max}$& $\sigma $& $n$ \\
\hline\noalign {\smallskip}
({\AA})&  & (km~s$^{-1}$) &(km~s$^{-1}$)  & (\AA)& (\AA) & (km~s$^{-1}$)&(km~s$^{-1}$) & & (\AA) &  \\
\hline\noalign{\smallskip}
4471.48& 2$^{3}$P-4$^{3}$D& 
144.6& 
4.2& 
0.052& 
0.006& 
51.6& 
3.8& 
0.071& 
0.007& 
4 \\
%\hline
5875.62& 
2$^{3}$P-3$^{3}$D& 
135.6& 
0.8& 
0.200& 
0.015& 
43.6& 
0.7& 
0.226& 
0.011& 
5 \\
%\hline
6678.15& 
2$^{1}$P-3$^{1}$D& 
133.7& 
2.7& 
0.096& 
0.011& 
42.1& 
2.1& 
0.098& 
0.011& 
5 \\
%\hline
7065.19& 
2$^{3}$P-3$^{3}$S& 
129.8& 
2.2& 
0.053& 
0.006& 
42.9& 
9.6& 
0.048& 
0.015& 
5 \\
%\hline
7281.48& 
2$^{1}$P-3$^{1}$S& 
121.5& 
9.6& 
0.040& 
0.014& 
43.3& 
4.8& 
0.027& 
0.005& 
4 \\
\hline
\end{tabular}
\end{table}