\begin{table}%t1
%\centering
\par
\caption {\label{tab:z1_lines}Lines observed in the knot Z1 of the HH46-47 jet. }
%\centering
\par
\begin{tabular}{cccccccc}
\hline     \hline 
\noalign{\smallskip}
Line id. & $\lambda$ &  $F$ & $\Delta F$ & Line id. & $\lambda$ &  $F$ & $\Delta F$\\
 ~       &  (\um)    & \multicolumn{2}{c}{(10$^{-16}$~erg~cm$^{-2}$~s$^{-1}$).} &~        & (\um)    & \multicolumn{2}{c}{(10$^{-16}$ erg cm$^{-2}$ s$^{-1}$)} \\
\hline \\[-3.5mm]
\Ti~$^2$G$_{7/2}$--$^4\rm F_{7/2}$    & 1.140 & 8.3 & 3.5 & 	H$_2$ 1--0 S(6)			   & 1.788 & 9.4 & 0.5 \\
H$_2$ 2--0 S(1)   		    & 1.162 & 5.8 & 2.2 & 	\fe~a$^4$D$_{3/2}$--a$^4\rm F_{3/2}$ & 1.797 & 9.8 & 1.1\\
\pii~$^3$P$_2$--$^1$D$_2$	    & 1.188 & 3.5 & 1.0 & 	\fe~a$^4$D$_{5/2}$--a$^4$F$_{5/2}$ & 1.800 & 7.1 & 0.8\\
\fe~a$^4$D$_{7/2}$--a$^6$D$_{9/2}$ & 1.257 & 106.0 & 0.8& 	\fe~a$^4$D$_{7/2}$--a$^4$F$_{7/2}$ & 1.810 & 38.2 & 2.1\\
\fe~a$^4$D$_{1/2}$--a$^6$D$_{1/2}$ & 1.271 & 5.9 & 1.0  & 	H$_2$ 2--1 S(5)			   & 1.945 & 11.0 & 1.5  \\
\fe~a$^4$D$_{3/2}$--a$^6$D$_{3/2}$ & 1.279 & 7.8 & 0.1  & 	H$_2$ 2--1 S(4)			   & 2.004 & 2.7 & 0.3 \\
\fe~a$^4$D$_{5/2}$--a$^6$D$_{5/2}$ & 1.295 & 11.9 & 0.9 & 	H$_2$ 1--0 S(2)			   & 2.034 & 26.1 & 0.6 \\
\fe~a$^4$D$_{3/2}$--a$^6$D$_{1/2}$ & 1.298 & 6.7 & 0.1 & 	H$_2$ 2--1 S(3)			   & 2.074 & 8.1 & 0.5  \\
\fe~a$^4$D$_{7/2}$--a$^6$D$_{7/2}$ & 1.321 & 306.0 & 0.8  & 	H$_2$ 1--0 S(1)			   & 2.122 & 68.5 & 0.3 \\
\fe~a$^4$D$_{5/2}$--a$^6$D$_{3/2}$ & 1.328 & 8.4 & 0.9  & 	H$_2$ 2--1 S(2)			   & 2.154 & 3.9 & 0.3	 \\
\fe~a$^4$D$_{7/2}$--a$^6$D$_{5/2}$ & 1.372 & 71.7 & 1.0 & 	H$_2$ 2--1 S(1)		           & 2.248 & 8.5 & 0.5 \\
\fe~a$^4$D$_{5/2}$--a$^4$F$_{9/2}$ & 1.534 & 173.0 & 0.7 & 	H$_2$ 3--2 S(1)			   & 2.386 & 1.6 & 0.4\\
\fe~a$^4$D$_{3/2}$--a$^4$F$_{7/2}$ & 1.600 & 10.6 & 0.5 &	H$_2$ 1--0 Q(1)			   & 2.407 & 50.0 & 0.8     \\ 
\fe~a$^4$D$_{7/2}$--a$^4$F$_{9/2}$ & 1.644 & 160.0 & 0.6 &  	H$_2$ 1--0 Q(2)		           & 2.413 & 18.3 & 0.9 	\\ 
\fe~a$^4$D$_{1/2}$--a$^4$F$_{5/2}$ & 1.664 & 7.0 & 0.7 & 	H$_2$ 1--0 Q(3)			   & 2.424 & 47.4 & 0.9  \\
\fe~a$^4$D$_{5/2}$--a$^4$F$_{7/2}$ & 1.677 & 142.0 & 0.3 & 	H$_2$ 1--0 Q(4)	                   & 2.437 & 18.9 & 1.3 \\
H$_2$ 1--0 S(9)			   & 1.687 & 4.2 & 0.5 & 	H$_2$ 1--0 Q(5)			   & 2.455 & 42.9 & 1.5    \\
\fe~a$^4$D$_{3/2}$--a$^4$F$_{5/2}$ & 1.712 & 2.1 & 0.4 &  	H$_2$ 1--0 Q(5)			   & 2.455 & 42.9 & 1.5    \\
\fe~a$^4$D$_{1/2}$--a$^4$F$_{3/2}$\tablefootmark{*} 
				   & 1.745 & 6.3 & 0.8 &	H$_2$ 1--0 Q(7)		  	 & 2.500 & 47.4 & 3.7  \\  
H$_2$ 1--0 S(7)\tablefootmark{*}       	   & 1.748 & 150.0 & 0.6&					&	&	&	\\
\hline
\end{tabular}
\tablefoot{\tablefoottext{*}{Blend of the two indicated lines.}}
\end{table}