\begin{table}%t1
\caption{Overview of the observations of the \object{IRAS~2A} outflow
position treated in this paper.}\label{tab1}
%\centerline
{
\begin{tabular}{llll}\hline\hline
Line & & Rest freq.& Observed with \\ \hline
CO          & $2-1$         & 230.5380             & CSO         \\
            & $3-2$         & 345.7960             & CSO         \\[0.5ex]
C$^{18}$O       & $3-2$         & 329.3305             & CSO         \\[0.5ex]
CH$_3$OH    & $2_1-1_1$     & \phantom{1}97.5828   & OVRO        \\
            & $7_2-6_1$     & 338.7222             & CSO         \\[0.5ex]
CS          & $2-1$         & \phantom{1}97.9810   & OSO, OVRO   \\
            & $5-4$         & 244.9356             & CSO         \\
            & $7-6$         & 342.8830             & CSO         \\[0.5ex]
C$^{34}$S   & $2-1$         & \phantom{1}96.4129   & BIMA        \\[0.5ex] 
HCN         & $1-0$$^{a}$ & \phantom{1}88.6318   & OSO, BIMA   \\
            & $4-3$         & 354.5055             & CSO         \\[0.5ex]
HCO$^+$     & $1-0$         & \phantom{1}89.1885   & OSO, BIMA   \\
            & $4-3$         & 356.7343             & CSO         \\[0.5ex]
H$^{13}$CO$^+$     & $1-0$         & \phantom{1}86.7543   & OSO, OVRO   \\[0.5ex]
H$_2$CO     & $5_{1,5}-4_{1,4}$ & 351.7686         & CSO         \\
            & $5_{0,5}-4_{0,4}$ & 362.7359         & CSO         \\[0.5ex]
N$_2$H$^+$  & $1-0$$^{a}$ & \phantom{1}93.1737   & OSO, BIMA   \\[0.5ex]
SiO         & $2-1$         & \phantom{1}86.8470   & OSO, OVRO   \\
            & $5-4$         & 217.1049             & CSO         \\
            & $8-7$         & 347.3306             & CSO         \\[0.5ex]
SO          & $2_2-1_1$     & \phantom{1}86.0940   & OVRO        \\
            & $2_3-1_2$     & \phantom{1}99.2999   & OSO         \\
            & $8_9-7_8$     & 346.5285             & CSO         \\[0.5ex]
SO$_2$      & $7_{3,5}-8_{2,6}$ & 97.7024      & OVRO        \\\hline
\end{tabular}}
\medskip
$^{a}$Hyperfine splitting--multiple lines observed in one setting. The coordinates for the single-dish observations are $\alpha(2000)=03^{\rm h}29^{\rm m}01\fs0$, $\delta(2000)=31^\circ14\arcmin20\arcsec$, i.e., corresponding to offset of ($79$\arcsec, $-17$\arcsec) in the maps presented in this paper.
\end{table}