\begin{table}%T1
\caption{\label{tab_observation}Summary of  the HIFI data.}
\small%\centering
\par
\begin{tabular}{lrlccccc}
\hline\hline\noalign{\smallskip}
Transition &     $\nu_{\rm line}$ & Position &    Beam &     $v_{\rm lsr}$ & {\it FWHM}\tablefootmark{\dagger}&     $T_{\rm A}^*$ &    Area        \\
&     $[$GHz$ $] & &     size $[$\arcsec$]$ &    $[$\kms$]$ &     $[$\kms$]$ &     $[$K$]$ &    $[$ K~km~s$^{-1}]$    \\
\hline\noalign{\smallskip}
HCO$^+$ (6$-$5) &     535.062 & H$_2$ peak &    41 &     $2.3 \pm 0.3$ & $1.4\pm0.3$ &     0.22 &    $0.33 \pm 0.07$    \\
$^{13}$CO (5$-$4) &      550.926 & H$_2$ peak &    41 &     $2.2 \pm 0.3$ & $1.2\pm0.3$ &      5.12 &    $6.5 \pm 1.5$    \\
$^{13}$CO (8$-$7) &      881.272 & H$_2$ peak &    24 &     $2.2 \pm 0.2$ & $0.9\pm0.2$ &     4.15 &    $4.0 \pm 0.8$    \\
C$^{18}$O (5$-$4) &     548.831 & H$_2$ peak &    41 &      $2.1 \pm 0.3$ & $0.9\pm0.3$ &     1.12 &    $1.1 \pm 0.4$     \\
\CII{} &     1900.537 & H$_2$ peak &    11 &     $2.7 \pm 0.1$ & $3.4 \pm 0.2$ &     23.6 &    $85.6 \pm 5.0$\\
\CII{} &     1900.537 & S-NW cut / North &    11 &     $2.5 \pm 0.1$ & $2.4\pm 0.2$ &     17.9 &    $45.8 \pm 3.8$    \\
\CII{} &     1900.537 & S-NW cut / Cavity &    11 &     $4.0 \pm 0.1$ & $2.2 \pm 0.2$ &    6.89 &    $16.2 \pm    1.4$\\
\CII{} &     1900.537 & S-NW cut / South &    11 &     $2.5 \pm 0.1$ & $2.4 \pm 0.2$ &     13.3 &    $34.0 \pm 2.8$\\
\hline
\end{tabular}
\tablefoot{\tablefoottext{\dagger}{For \CII, we report the {\it FWHM} of the Gaussian profile of equivalent area and peak intensity.}} 
\par
 \vspace*{-4mm}
\end{table}