\begin{table}%t1
  \caption{\label{table:1}HIFI observations of water vapour in comet \wild{} and
  derived water production rates.}
   %\centerline
{\small
  \begin{tabular}{c c c c c c c c r@{}l c}
    \hline\hline %\noalign{\smallskip}
    Obs.\ ID &~UT start date & $\Delta$ & $r_{\rm h}$ & Band &
    Frequency & Integration time & Intensity &
    \multicolumn{2}{c}{Velocity shift} & $Q_{\water}{}$\tablefootmark{a} \\
    & [mm/dd.ddd] & [AU] & [AU] & & [GHz] & [s] & [K \kms] &
    \multicolumn{2}{c}{[\ms]} & [$10^{28}\ {\rm s}^{-1}$] \\
    \hline
    1342190098 & 02/1.443 & 0.949 & 1.612 & 1a & 556.9360 & 684 & $1.807 \pm 0.012$ & $4~\pm~$ & 5 & $1.00 \pm 0.05$\\
1342190185 & 02/4.235 & 0.927 & 1.609 & 1b & 556.9360 & 748 & $2.077 \pm 0.015$ & $-10~\pm~$ & 5 & $1.13 \pm 0.06$\\
1342190231 & 02/2.134 & 0.943 & 1.611 & 4b & 1113.3430 & 390 & $1.997 \pm 0.053$ & $-58~\pm~$ & 21 & $1.07 \pm 0.06$\\
1342190232 & 02/2.151 & 0.943 & 1.611 & 4b & 1113.3430 & 366 & $1.594 \pm 0.052$ & $-41~\pm~$ & 26 & $0.86 \pm 0.05$\\
    \hline
  \end{tabular}}
  \tablefoot{
  The observations were acquired
  in February 2010 using the standard fast DBS cross map observing mode.
  The intensity, velocity shift and $Q_{\water}{}$ correspond to the
  average of the central points in the cross maps.\tablefoottext{a}{Water production rates computed with $T = 40$~K and   $\xne = 0.2$. The error bar includes a 5\% calibration uncertainty in
  the sideband gain ratio.}} 
\end{table}