\begin{table}%t2
\caption{\label{tab:par}Image parameters for natural weighting maps.}
%%\centering

\small
\begin{tabular}{ccccccc}
\hline\hline
Epoch &Frequency & Beam Size & Beam PA & Noise &
Peak & Total flux density\\
yy-mm-dd & GHz & mas & deg & mJy beam$^{-1}$ &
mJy beam$^{-1}$ & mJy\\
\hline 
03-08-07&1.6&11.0 $\times$ 6.1&7&0.15&22.5&67.6\\
08-02-26&1.6& 11.3 $\times$ 5.9&15&0.10&32.2&90.9\\
97-04-06&5&4.0 $\times$ 2.4&6&0.21&8.7&29.9\\
05-07-27&5&3.4 $\times$ 2.2&--8&0.13&10.0&42.0\\
08-02-26&5&3.0 $\times$ 1.5&--2&0.16&7.9&44.1\\
08-02-26&8.4&1.9 $\times$ 0.9&--4&0.08&7.0&25.2\\
08-02-26&22&1.0 $\times$ 0.7&--19&0.15&6.6&13.6\\
\hline
\end{tabular}
\end{table}