\begin{table}%t1
\caption{Observed line parameters.}\label{table1}
%\centerline
{
\begin{tabular}{rcccl}
\hline \hline 
Obs. freq.  & Obs.-cal. & Species & Transition & $\int T_A^*{\rm d}v$    \\
MHz       & MHz      &         &   $J \rightarrow J'$ &mK~km~s$^{-1}$ \\
\hline
SiNC:\\
82~951 (1)  & .4 & SiNC & 6.5--5.5 $(e)$ & 69 (10)\\
82~962 (1.5)$^b$& .2 & SiNC & 6.5--5.5 $(f)$ & 60 (20)\\
95~723 (1)$^b$  & .4 & SiNC & 7.5--6.5 $(f)$ & 81 (20)\\
108~484 (1)$^b$& --0.5 & SiNC &8.5--7.5 $(f)$ & 47 (15)\\
133~991 (1) &--0.8 & SiNC & 10.5--9.5 $(e)$ & 49 (10)\\
134~006 (2) & 1& SiNC & 10.5--9.5 $(f)$ & 42 (10)\\
\hline
SiCN:\\
82~990.8$^b$ (4)    & .33 & SiCN & 7.5--6.5 $(e)$ & 160 (8)\\
83~015.7 (1)  & .1 & SiCN & 7.5--6.5 $(f)$ & 155 (12)\\
94~056.6 (1)  & .2 & SiCN & 8.5--7.5 $(e)$ & 159 (23)\\
94~081.7 (3)  & .3 & SiCN & 8.5--7.5 $(f)$ & 127 (23)\\
105~121.7$^b$ (3) & --.3 & SiCN & 9.5--8.5 $(e)$ & 128 (30)  \\
105~146.8 (2) & .1 & SiCN & 9.5--8.5 $(f)$ & 140 (15)\\
\hline
Other:\\
%Calc. freq.  & Obs.-Calc. & Species & Transitions & $\int T_A^*dv$    \\
(MHz)        & (MHz)      &          &            &mK~km~s$^{-1}$ \\
82~924      &    --       &  U      &   --       & 60 \\
82~938      &    --       &  U      &   --       & 55 \\
83~011      &    --       &  U      &   --       & 50 \\
95~784      &    --       &  U      &   --       & 230 \\
108~579     &    --       &  U      &   --       & 57 \\
\hline
Upper limits: \\
  --     & 103~067.4   &  SiCCH  & 9.5--8.5 $(e)$& $<$38\\
  --     & 103~098.4   &   SiCCH  & 9.5--8.5 $(f)$& $<$38\\
\hline
\end{tabular}}
\smallskip
Notes: the number in parenthesis are 1$\sigma$ uncertainties on the last digit,
derived from least square fits; they do not include the 5\% calibration
uncertainty. The upper limits quoted
for the SiCCH line intensities correspond to 3$\sigma$. $^b$ Denotes a partly
blended line.
\end{table}