\begin{table}%T3
\caption{\label{freqOO}Frequencies detected in the three sets of data for each studied line. The
\ion{He}{i}~6678 and \ion{Mg}{ii}~4481~lines are outside the wavelength range of
the Musicos spectrograph, and therefore not studied in 2001.}
%\centering
\par
\begin{tabular}{lll@{\ }@{\ }@{\ }@{\ }l@{\ }@{\ }@{\ }@{\ }l@{\ }@{\ }@{\ }@{\ }l@{\ }@{\ }@{\ }@{\ }l@{\ }@{\ }@{\ }@{\ }l}
\hline
\hline
                   &      & \multicolumn{6}{l}{Frequency (c~d$^{-1}$)}  \\
Line               & Year &      &$f_{\rm rot}$&{\revised 2-$f_1$}& $f_1$&  &2$f_1$\\
\hline
\ion{He}{i} 4713   & 1998 & 0.48 & 0.82    &       & 1.01 &      & 2.02 \\
                   & 1999 & 0.50 & 0.75    & 0.92  &      & 1.06 &      \\
                   & 2001 & 0.52 & 0.81    & 0.94  & 1.03 &      & 2.02 \\
\ion{He}{i} 4921   & 1998 & 0.47 & 0.75    & 0.89  & 1.03 &      & 2.03 \\
                   & 1999 & 0.51 &         & 0.89? &      & 1.07 & 2.06 \\
                   & 2001 & 0.51 & 0.73    & 0.93  &      & 1.06 & 2.06 \\
\ion{He}{i} 5876   & 1998 & 0.48 & 0.75    & 0.97  & 1.03 & 1.07 & 2.02 \\  
                   & 1999 & 0.50 &         &       & 1.03 & 1.07 & 2.06 \\
                   & 2001 & 0.51 & 0.82    &       & 1.00 & 1.09 & 2.03 \\
\ion{He}{i} 6678   & 1998 & 0.46 & 0.82    & 0.93  & 1.03 &      & 2.09 \\
                   & 1999 & 0.50 &         &       & 1.03 & 1.07 & 2.06 \\
\ion{Mg}{ii} 4481  & 1998 & 0.48 & 0.76    & 0.93  & 1.04 &      & 2.05 \\
                   & 1999 & 0.50 & 0.75    & 0.94? & 1.03 & 1.07 & 2.06 \\
\ion{Si}{iii} 4553 & 1998 & 0.48 & 0.80    & 0.92  & 1.04 &      & 2.07 \\
                   & 1999 &      & 0.85    &       & 1.03 & 1.05 & 2.06 \\
		   & 2001 & 0.47 & 0.8     & 0.96  &      & 1.07 & 2.04 \\
\hline
\end{tabular}
\end{table}