\begin{table}%tC.2
\caption{\label{Odin step scale}Physical sizes   corresponding  to the Odin beam and the different angular steps in the 2006/07 observations.}
\par
%\centering
\par
\begin{tabular}{r r rrrrrr}
\hline\hline \noalign{\smallskip}
Angular    &\multicolumn{7}{c}{Redshift $z$}\\
 size  & $z$ = 5  &  10&25 & 50& 100   & 200  &300\\
$\theta$ [\arcmin]  & \multicolumn{7}{c}{Physical size [kpc]}\\
\hline
 2$\farcm$1 &820 & 	540&270& 150&79&41& 28\\
5& 2000  &		1300&640& 350 & 190 &  98 &   66 \\
10 & 3900  & 		2600&1300& 700 & 380 &  200  &  130\\
15 & 5900  & 		3900&1900& 1060 & 560 &  290 &  200 \\
30 &	12~000 &	7700& 3800& 2100 & 1100   & 590 &   400\\
\hline
\end{tabular}
\end{table}