\begin{table}%t4
\par
\caption{\label{tab:h2}d$v_t$,  $T, N$(${\rm H}_2$), \mh\ along the HH46-47 jet.}
%\centerline
 {
    \begin{tabular}[h]{ccccc}
 \hline     \hline 
 \noalign{\smallskip}
Knot & d$v_t$\tablefootmark{a} & $T$\tablefootmark{b} & $N$(H$_2$)\tablefootmark{c} &  \mh\tablefootmark{d} \\
     & (\kms)  & (K) & (10$^{17}$~cm$^{-2}$) & (\msyr) \\
\hline  
Z1   & 131 & $2797\pm100$ & 3.3 &  4.5~$\times$~10$^{-9}$\\
X    & 19 & $2078\pm42$  & 3.7 &  7.3~$\times$~10$^{-10}$	\\
Y3   & 122 & $2564\pm53$  & 3.6 &  4.6~$\times$~10$^{-9}$   \\
Y2   & 122 & $2330\pm50$  & 5.1 &  6.4~$\times$~10$^{-9}$\\
Y1   & 122 & $2093\pm42$  & 2.4 &  3.0~$\times$~10$^{-9}$\\
\hline
\end{tabular}}
\par
\tablefoot {\tablefoottext {a}{Tangential velocities from \cite{jochen94_hh46}.}
\tablefoottext{b}{\h\ temperature.}
\tablefoottext{c}{\h\ column density.}
\tablefoottext{d}{\h\ mass ejection rate.}}
\end{table}