\begin{table}%t2
%\centering
\par
\caption{\label{tab_ampl}Line-core formation height ({\em 2nd column}) and velocity amplitude ratios of {\em left to right} observed rms velocities, velocity of v1 propagated in linear wave theory, same for v5, and from the fit to the scatterplots.}
\begin{tabular}{llllll}\hline\hline
Line &$z$ [km] & $\sigma_{vj}/\sigma_{v1}$ &$\sigma_{v1,{\rm prop}.}/\sigma_{v1}$& $\sigma_{v5,{\rm prop}.}/\sigma_{v1}$  & Fit\\ \hline  %$\sigma_{v1,prop.}/\sigma_{v1}$
1 & 250 &1 & 1  & $-$ & 1 \\   %1
5 & 450 &1.28  &1.65& 1.28& 1.25 \\  % 1.65& 
9 & 600 &1.99 & 2.65& 1.93& 1.66 \\ % 2.65&
8 &  1000 &7.37  & 8.75& 8.83& 1.23 \\ %8.75&
\hline
\end{tabular}
\end{table}