\begin{table}
   %\caption{The length of the jet at different epochs and in both $H_{\rm \alpha}$ and [SII] filters computed as the distance between the ex
%tremes of contours on knots F$_{2}$ (or ``F-complex'' when there is a single contour for both F$_{2}$ and F knots) and knot D.}
 %  \label{tab:jet-tot}
 %  \begin{tabular}{lccccccc}
  % \hline
 %  \hline
  % Filter        & Year & $\Delta t^{*}$ & Length & Rate of change & Rate of change$@150$ pc & & $v$ error \\
   %              &      & days       & arcsec & arcsec/yr      & AU/yr                 & km~s$^{-1}$ & km~s$^{-1}$ \\
   %\hline
   %H$_{\rm \alpha}$  & 1996 & 0          & 9.53   & --              & --                     & -- & --\\
   %H$_{\rm \alpha}$  & 1998 & 771        & 9.74   & 0.0994         & 15     & 71 & 34\\
   %H$_{\rm \alpha}$  & 2005 & 2504       & 10.27  & 0.0773         & 12     & 55 & 10\\
   %         ${\rm [SII]}$    & 1996 & 0          & 9.76   & --             & --     & -- & --\\
   % ${\rm [SII]}$ & 1998 & 771     & 10.02  & 0.1231         & 18           & 88 & 34\\
   % ${\rm [SII]}$ & 2005 & 2505   & 10.19  & 0.0248         & 4            & 18 & 10\\
   %\hline
   %\medskip
   %{$^*$ Number of days between successive epochs.} 
   %\end{tabular}
   %\end{table}