\begin{table}%t3
\caption{\label{CHcolden} Results of our fit of the CH lines towards \object{Sgr~B2} are given in column (A). The velocities and line widths are taken from the \ion{H}{i} data of \citet{garwood}. Column (B) gives the previous estimates of CH column densities from the KAO measurements of \citet{stacey} and columns (C) and (D) give the results from the radio $\Lambda$-doublet lines from \citet{genzel} and \citet{andrew}.}
%\leavevmode \footnotesize
%\centerline
 {\begin{tabular}[!t]{cccccc}
\hline
\hline
LSR Velocity    &  {\it FWHM}       & \multicolumn{4}{c}{$N({\rm CH})$ (10$^{14}$~cm$^{-2}$)} \\
(km~s$^{-1}$)   & (km~s$^{-1}$) &  (A)         & (B)  & (C) & (D) \\
\hline
$-107.6$        & 7     & $0.9\pm0.7$  & 4.2  &     &      \\
$-81.7$         & 28    & $2.6\pm1.1$  &      &     & 2.5  \\
$-51.9$         & 17    & $0.3\pm0.1$5 &      &     &      \\
$-44.0$         & 8     & $1.5\pm0.6$  & 3.6  &     & 1.3  \\
$-24.4$         & 14    & $1.9\pm0.4$  &      &     & 0.3  \\
$+1.1^a$        & 19    & $2.0\pm0.3$  & 3.2  &     & 1.1  \\
$+15.7 $        & 7     & $3.1\pm0.8$  &      &     & 1.5  \\
$+31.4 $        & 21    & $1.5\pm1.0$  &      &     &      \\
$+52.8/+66.7^b$ & 11/16 & $9.3\pm0.9$  & 5.2  & 3.1 & 9.4$^c$  \\
\hline
Total           &       & 20.1         & 15.2 &     & 16.1  \\
\hline
\end{tabular}}
\par
$^a$ This velocity is corrected from an error in \citet{garwood} where it is given as $+11$~km~s$^{-1}$.\\
$^b$ The \ion{H}{i} data resolve 2 components in \object{Sgr~B2}. However, our fit requires
only one of these (at 66.7~km~s$^{-1}$) to reproduce the ISO spectrum.\\
$^c$ This is the combined value for all components $>$$50$~km~s$^{-1}$ assuming the emission fills the beam,
as described in the text by \citet{andrew}.
\end{table}