\begin{table}%t1
\par
\caption{\label{t1}Estimated water abundances.}
\begin{tabular}{lcccccc}
\hline\hline
\noalign{\smallskip}
 &  $R$\tablefootmark{a} &$T$\tablefootmark{b} & $n$(H$_2$)\tablefootmark{b} & $N$(oH$_2$O) & $X$(H$_2$O)\tablefootmark{b} & $A$\tablefootmark{c} 
\\ 
 & & K& \cmt & 10$^{16}$\cmd & 10$^{-4}$& sr \\
\hline\\[-3.2mm]
B & 14--20 &300 & $3\times10^5$ &  3--9 & 0.6--3 & ${\sim}5.2\times10^{-9}$ \\
R & 10--14 &500 & $1\times10^5$ &  2--4 & 0.8--2 & ${\sim}9.4\times10^{-9}$\\
\hline	    
\end{tabular}\vspace*{-2mm}
\tablefoot{\tablefoottext{a}{179~\um/557~GHz ratio within the Odin aperture.}
\tablefoottext{b}{See text for references and assumptions on $T, n$ and $N$(\h).}
\tablefoottext{c}{Effective emission area that reconciles the observed and predicted 179~\um\ line intensity within the Odin aperture.}}
\vspace*{-2mm}\end{table}