\begin{table}%t2
\par
\caption{\label{tab2}Parameters of the profile-fitting analysis (Sect.~3.2, Fig.~\ref{fig2}).}
\begin{tabular}{ccccccc}
\hline
\hline
   Date   & Stage& Line &$\tau_{\rm e}$ &$T_{\rm e}$&$\chi^2_{\rm red}$&
$\bar{n}_{\rm e}$\\
           &      &      &               &    [K]   &                  & 
[cm$^{-3}]$      \\
\hline
1995/07/28 & HB& \ion{He}{ii} & 0.32~ & 28~800&0.9&$1.1\times 10^{12}$\\
2003/11/14 & T & \ion{O}{vi}  & 0.083 & 28~500&1.2&$1.7\times 10^{11}$\\
2004/06/24 & Q & \ion{O}{vi}  & 0.061 & 20~300&0.8&$2.6\times 10^{10}$\\
\hline
\end{tabular}
\end{table}