\begin{table}%t2 %\centering \par \caption {\label{tab:LTEresults}Excitation temperature and column densities.} \begin{tabular}{ r l l l } \hline \hline \noalign{\smallskip} Approach & Component & T [K] (type) & $N\rm_{meth}$[cm$^{-2}$] \\ \hline Population & $K\mathu=0 (A)$ & $145\pm12$ (rot) & $(2.2\pm0.5)\times 10^{14}$ \\ diagram & $K\mathu=0 (E)$ & $120\pm8$ (rot) & $(1.4\pm0.3)\times 10^{14}$ \\ \hline LTE model & Envelope & $40$ (exc) & $2\times 10^{14}$ \\ input & Hot core & $120$ (exc) & $6\times 10^{16}$ \\ \hline LTE simu- & $K\mathu=0 (A)$ & \changes{164} (rot) & $ 1.4\times 10^{14}$ \\ lated obs. & $K\mathu=0 (E)$ & \changes{168} (rot) & $ 1.7\times 10^{14}$ \\ \hline \end{tabular} \tablefoot{{From the top}: the rotational temperatures and methanol column densities derived from the observed population diagram; the input excitation temperatures and column densities of the LTE model; the rotational temperatures and column densities derived from the modelled population diagram.} \vspace*{-4mm} \end{table}