\begin{table} %t1
\caption{\label{table:vlaobs}Observational parameters of \object{NVSS~J180247$-$145451}.}
\small%\centering
\par
\begin{tabular}{c@{~~~}c@{~~~}c@{~~~}c}
\hline
\hline
$\lambda$ & Flux density & Apparent deconvolved angular size  & PA\\
(cm)      & (mJy)        & ($\arcsec\times\arcsec$) & (\degr) \\
\hline
20~~      & $7.5\pm0.3$  & $(3.0\pm0.1)\times(2.1\pm0.1)$      & ~~$95^{+5}_{-6}$\\
6         & $2.8\pm0.2$  & $(0.94\pm0.03)\times(0.27\pm0.05)$  & ~~$90^{+2}_{-2}$\\
~~~3.5    & $2.0\pm0.1$  & $(0.56\pm0.03)\times(0.27\pm0.04)$  & $102^{+4}_{-4}$\\
\hline
\end{tabular}
\end{table}