\begin{table}%tD.4
\caption{\label{FeIIvrad:tab}[\ion{Fe}{ii}] radial velocities of the individual knots of HH~54
obtained from ISAAC high resolution spectroscopy, corrected for the cloud speed with respect to
the LSR ($v_{\rm LSR}$~= 2~km~s$^{-1}$, Knee \cite{knee}). When detected, two velocities components are reported.}


%\centering
\small
\begin{tabular}{cc}
\hline \hline
\multicolumn{2}{c}{HH~54 - ISAAC slit~1}\\ 
knot  & $v$$_{\rm rad}$  (km~s$^{-1}$)   \\
\hline
A1    & $-$52 $\pm$ 3; $-$105 $\pm$ 3 \\
A3    & $-$34 $\pm$ 3  \\
B     & $-$14 $\pm$ 3; $-$109 $\pm$ 3 \\
B3    & $-$49 $\pm$ 3; $-$105 $\pm$ 3 \\
J$-$J1  &  $-$9 $\pm$ 3; $-$91 $\pm$ 3 \\
H2    & $-$36 $\pm$ 3; $-$90 $\pm$ 3 \\
H3    & $-$20 $\pm$ 3; $-$45 $\pm$ 3 \\
Z     & $-$100 $\pm$ 3  \\
\hline
\multicolumn{2}{c}{HH~54 $-$ ISAAC slit~2}\\  
knot  & $v$$_{\rm rad}$  (km~s$^{-1}$)   \\
\hline
C1    &  $-$5 $\pm$ 3; $-$90 $\pm$ 3 \\
C3    &  $-$9 $\pm$ 3; $-$85 $\pm$ 3 \\
E     & $-$52 $\pm$ 3 \\
J$-$J1  & $-$18 $\pm$ 3; $-$62 $\pm$ 3\\
H3    &  $-$40 $\pm$ 3 \\
K     & $-$62 $\pm$ 3 \\
K1    & $-$45 $\pm$ 3 \\
\hline
\end{tabular}
\end{table}