\begin{table}%t1
%\centering
\par
\caption{\label{7:tab:settings}Adopted Champ$^+$ settings.}
\small
\begin{tabular}{l l l l}
\hline \hline
Setting & Lines & Freq. (GHz) & Mode  \\ \hline
A & $^{12}$CO 6--5 & 691.4730 & OTF/Hexa  \\
A & $^{12}$CO 7--6 & 806.6652 & OTF/Hexa \\
B & $^{13}$CO 6--5 & 661.1067 & Hexa  \\
B & [C I] 2--1    & 809.3435 & Hexa \\
C & C$^{18}$O 6--5 & 658.5533 & Stare \\
C & $^{13}$CO 8--7 & 881.2729 & Stare  \\ \hline
\end{tabular}
\end{table}