\begin{table}%t2 %\centering \par \caption{\label{param}Observed parameters from the spectra at the peak position RA~$=$ 5\hh 38\mm 39.5\ss, Dec $=-$69\d 05\m 37.5\s~(J2000).} \par \small \begin{tabular}{ccccc} \hline\hline Line emission & $V_{\rm c}$ & $T_{\rm mb}$ & $\Delta v$ & $I$\\ & (\k) & (K) & (\k) & (K \k) \\ \hline $^{12}$CO $J=1$--0 & $237.6 \pm 0.9$ & $0.11 \pm 0.04$ & $2.1 \pm 0.2$ & $0.30 \pm 0.12$ \\ & $244.9 \pm 0.8$ & $0.50 \pm 0.06$ & $3.8 \pm 0.4$ & $1.82 \pm 0.25$ \\ & $251.4 \pm 0.9$ & $0.25 \pm 0.05$ & $5.6 \pm 0.2$ & $1.33 \pm 0.25$ \\ %\hline $^{12}$CO $J=2$--1 & $237.8 \pm 0.9$ & $0.30 \pm 0.05$ & $5.7 \pm 0.5$ & $1.40 \pm 0.25$ \\ & $244.4 \pm 0.7$ & $1.00 \pm 0.08$ & $4.0 \pm 0.5$ & $5.20 \pm 0.25$ \\ & $249.7 \pm 0.8$ & $0.37 \pm 0.05$ & $5.5 \pm 0.7$ & $1.60 \pm 0.22$ \\ %\hline $^{13}$CO $J=2$--1 & $236.7 \pm 0.3$ & $0.08 \pm 0.02$ & $0.4 \pm 0.3$ & $0.07 \pm 0.02$ \\ & $244.4 \pm 0.3$ & $0.13 \pm 0.01$ & $3.1 \pm 0.6$ & $0.40 \pm 0.04$ \\ & $249.8 \pm 0.2$ & $0.07 \pm 0.01$ & $2.1 \pm 0.6$ & $0.16 \pm 0.03$ \\ %\hline CS $J=2$--1 & $245.7 \pm 0.4$ & $0.03 \pm 0.01$ & $1.7 \pm 0.6$ & $0.07 \pm 0.02$\\ & $249.5 \pm 0.2$ & $0.07 \pm 0.01$ & $2.1 \pm 0.6$ & $0.12 \pm 0.03$ \\ \hline \end{tabular} \end{table}