\begin{table}%t2
%\centering
\par
\caption{\label{table:2}Summary of models.} 
\small \begin{tabular}{l r r r r r r}
\hline \hline \noalign{\smallskip}
Resonance frequency  & $\omega_{\rm R}$  & $=$ & \multicolumn{4}{l}{$2.71 \times 10^{11}$~s$^{-1}$} \\
$FWHM$  of velocity distribution & $\Delta v$  & $=$ & \multicolumn{4}{l}{1.0~km~s$^{-1}$} \\
Planetary magnetic moment  & $M $  & $=$ & \multicolumn{4}{l}{34~G~$r_{J}^3$}\\
Tilt of magnetic dipole axis   & $\Theta $  & $=$ & \multicolumn{4}{l}{$10^\circ$} \\
Maser gain length & $L$    & $=$ & \multicolumn{4}{l}{10~$r_{J}$} \\
\hline  
Model  & 1a & 1b & 2a & 2b & 2c & 2d \\
%\hline
Distance of maser slab from rotation axis [$r_{J}$] & 3  & 3  & 3   & 3   & 0   & 0.5 \\
Height above equatorial plane  [$r_{J}$] & 0  & 0  & 0   & 0   & 3   & 3   \\
Diameter of maser bundle       [$r_{J}$] & 0  & 3  & 0   & 3   & 0   & 0   \\
Normalized peak intensity                    & 10 & 10 & 0.1 & 0.1 & 0.1 & 0.1 \\
\hline  
\end{tabular}
\end{table}