\begin{table}%T1 \caption{\label{tab:mod}Model parameters of the model that best reproduces the \mbox{observations}.} \small%\centering \par \begin{tabular}{cc} \hline\hline\noalign{\smallskip} Parameter& Best fit model\\ \hline\noalign{\smallskip} $n_{\rm H}$ (cm$^{-3}$)& $10^5$\\ $v_{\rm bow}$ (km s$^{-1}$) &50\\ $b$ & 3\\ $\beta$&1.7\\ $r_0$ (AU)&610 \\ $\theta$ ($^{\circ}$)&15\\ $\phi$ ($^{\circ}$)&180\\ $i$ ($^{\circ}$)&50\\ \hline \end{tabular} \tablefoot{H/H$_2 = 4.1 \times 10^{-5}$.} \end{table}