\begin{table}%t3
\setcounter{table}{2}
%\centering
\par
%\label{tb3}
\caption{Lobe spectral ages and { estimated source expansion} velocity; $\nu_{\rm b}$ and
$B_{\rm eq}$ are the break frequency and the equipartition magnetic
field. When redshift
is unknown, $LLS$ is calculated assuming $z$~=~1.00, and the value is
given with a leading "$\sim$''.}
\label{tb3}
\begin{tabular}{lrccrc}
\hline
\hline
~~~~Name&$\nu_{\rm b}$&$B_{\rm eq}$&$t_{\rm syn}$&$LLS$&$v_{\rm sep}$\\
 &GHz&mG&$10^{3}\;$yr&pc~~&$h^{-1}$~c\\
\hline
%&&&&&\\
0147+400&7.2&6.2&1.2&$\sim$325&0.44\\%&2.7\\
0822+394&22.0&3.3&1.8&260&0.24\\%&2.1\\
0840+424&24.0&2.7&2.3&$\sim$530&0.38\\%&4.3\\
1242+410&10.0&5.4&1.3&175&0.22\\%&1.5\\
1432+428&6.5&2.6&4.9&$\sim$170&0.06\\%&1.4\\
2330+402&5.3&4.0&2.9&$\sim$365&0.21\\%&3.0\\
2358+406&12.0&4.6&1.5&$\sim$370&0.40\\
\hline
\end{tabular} 
\end{table}