\begin{table}%t7
\caption{\label{tab_britzfits}The best fit circular Gaussians of the 5~GHz data over four epochs. The flux density errors are $\sim$$5\%$, and the uncertainties of the
location and size of the Gaussians range between 0.2$-$0.5 of the
beam size depending on the respective flux density.}
%\centering
\par
\begin{tabular}{lccccc}
\hline \hline
Epoch&&Flux density &\multicolumn{2}{c}{Location}&Size\\
&& (mJy) & $r$ (mas) & $\vartheta$ (deg) & diam (mas) \\
\hline
1991.4&Core&  139 &   0  &    0   &     0.57   \\ 
        &C1&  132 &   1.81   &   0.2  &   1.01  \\
       & C2&   133 &   3.38 &   11.3  &   0.85  \\
\hline
1993.4&Core&  282 &   0  &    0   &     0.51   \\
        &C1&  113 &   2.47   &   4.9  &   0.57  \\
         &C2&   61 &   3.76 &   10.7  &   0.20  \\
\hline
1996.6&Core&  337 &   0  &    0   &     0.40  \\ 
         &C1&  97 &   2.32   &   6.0  &   1.13  \\
        &C2&   80 &   3.9 &   12.0  &   0.94  \\
\hline
1999.9&Core&  439 &   0  &    0   &     0.41   \\ 
      &C1&  78 &   2.07   &   7.8  &   1.00 \\
       &C2&   84 &   3.83 &   11.1  &   1.18  \\
\hline
\end{tabular}
\end{table}