\begin{table}%t1
%\centering
\par
\caption{Transitions, frequencies, upper level energies ($E_{\rm up}$) 
and Einstein $A$ coefficients ($A_{\rm ul}$) of the observed lines.} \label{tlines}
\small
\begin{tabular}{lcccc} \hline\hline
Molecule & Transition & Frequency & $E_{\rm up}$ & $A_{\rm ul}$ \\ 
 &  & (MHz) & (K) & (s$^{-1}$) \\ 
 \hline \noalign{\smallskip} 
CN  & 3,$\displaystyle 5\over \displaystyle 2$,3--2,$\displaystyle 3\over \displaystyle 2$, 3 & 34~0008.1 & 32.6 & $6.2\times 10^{-5}$\\[1.5mm] 
CN  & 3,$\displaystyle 5\over \displaystyle 2$,2--2,$\displaystyle 3\over\displaystyle  2$, 2 & 34~0019.6 & 32.6 & $9.3\times 10^{-5}$ \\[1.5mm]
CN  & 3,$\displaystyle 5\over \displaystyle 2$,4--2,$\displaystyle 3\over\displaystyle  2$, 3 & 34~0031.5 & 32.6 & $3.9\times 10^{-4}$ \\[1.5mm]
CN  & 3,$\displaystyle 5\over \displaystyle 2$,2--2,$\displaystyle 3\over \displaystyle 2$, 1 & 34~0035.4$^a$ & 32.6 & $2.9\times 10^{-4}$ \\[1.5mm]
CN  & 3,$\displaystyle 7\over \displaystyle 2$,4--2,$\displaystyle 5\over \displaystyle 2$, 3 & 34~0247.8$^b$ & 32.7 & $3.8\times 10^{-4}$ \\[1.5mm]
CN  & 3,$\displaystyle 7\over \displaystyle 2$,3--2,$\displaystyle 5\over \displaystyle 2$, 2 & 34~0248.6 & 32.7 & $3.7\times 10^{-4}$ \\[1.5mm]
CN  & 3,$\displaystyle 7\over\displaystyle  2$,3--2,$\displaystyle 5\over \displaystyle 2$, 3 & 34~0261.8 & 32.7 & $4.5\times 10^{-5}$ \\[1.5mm]
NO  & $\displaystyle 7\over \displaystyle 2$,$\displaystyle 9\over \displaystyle 2$--$\displaystyle 5\over\displaystyle  2$, $\displaystyle 7\over \displaystyle 2$ & 35~1043.5 & 36.1 & $5.4\times 10^{-6}$ \\[1.5mm]
NO  & $\displaystyle 7\over \displaystyle 2$,$\displaystyle 7\over \displaystyle 2$--$\displaystyle 5\over\displaystyle  2$, $\displaystyle 5\over \displaystyle 2$ & 35~1051.7$^c$ & 36.1 & $5.0\times 10^{-6}$ \\[1.5mm]
N$_2$O & 14--13 & 351667.8 & 126.6 & $6.3\times 10^{-6}$ \\[1.5mm]
CO$^+$ & 3,$\displaystyle 5\over \displaystyle 2$--2, $\displaystyle 3\over \displaystyle 2$ & 35~3741.3 & 33.9 & $1.6\times 10^{-3}$ \\[1.5mm]
CO$^+$ & 3,$\displaystyle 7\over \displaystyle 2$--2, $\displaystyle 5\over \displaystyle 2$ & 35~4014.2 & 34.0 & $1.7\times 10^{-3}$ \\[1.5mm]
SO$^+$ &$ \displaystyle 15\over \displaystyle 2$--$\displaystyle 13\over \displaystyle 2$ & 34~7740.0 & 70.1 & $1.6\times 10^{-3}$ \\[1.5mm]
SH$^+$ & 1,$\displaystyle 3\over \displaystyle 2$--0, $\displaystyle 1\over \displaystyle 2$ & 34~5929.8 & 16.6 & $2.3\times 10^{-4}$ \\[1.5mm] \hline
\end{tabular}
\begin{list}{}{}
\item[] $^a$ Overlap with hyperfine transition $F = 3$--2. $^b$ Overlap with hyperfine transition $F$ $=$ $5$--4.  
 $^c$ Overlap with hyperfine transition $ F =   5\over  2$--$ 3\over  2$.
\end{list}
\end{table}