\begin{table}%t1
\caption{\label{obs}Summary of radio observations and images.}
%\centering
\par
\begin{tabular}{ccccccccccc}
\hline \hline \noalign{\smallskip}
Name   &$\alpha$(J2000) & $\delta$(J2000)  &${\nu}$& $\Delta\nu$ & Date & Duration &Array& {\it HPBW} &PA&rms\\
      & (h m s)  & (\degr\ \arcmin\ \arcsec)& MHz& MHz&  &hours&&\arcsec~$\times$~\arcsec&\degr&mJy/beam\\
\hline
3C 35 & 01 12 02.20 & +49 28 35.00 & 73.8 & 1.562 &23-Nov.-2003&6&B&93 $\times$ 64&--85&95 \\
& & &327.5&3.125&23-Nov.-2003&6&B&23 $\times$ 17&--85&1.3 \\
& & &327.5--321.5&3.125&21-Mar-2004&3.5&C&55 $\times$ 50&15&2.3\\
& & &327.4&3.125&&9.5&B+C&27 $\times$ 21&--88&1.0\\
\hline
3C 223 &09 39 52.74&+35 53 58.20& 73.8 & 1.562 &16-Nov.-2004&5&A&25 $\times$ 24&--58&43\\
&&& 73.8 & 1.562 &03-Mar.-2005&5&B&83 $\times$ 73&--62&98\\
&&&73.8& 1.562 &&10&A+B&26 $\times$ 25&--61&40\\
&&&327.3&6.25&16-Dec.-2004&5&A&6 $\times$ 5&--77&0.7\\
&&&328.9&6.25&03-Mar.-2005&5&B&19 $\times$ 16&--82&1.3\\
&&&327.3&6.25&&10&A+B&7 $\times$ 6&--78&0.6\\
\hline
\end{tabular}
\tablefoot {Column~1: source name; Cols.~2,~3: radio pointing position; Col.~4: observing frequency;
Col.~5: bandwidth; Col.~6: date of observations; Col.~7: time of integration; Col.~8: VLA~configuration; Col.~9: resolution; Col.~10: position angle; Col.~11: rms.}
\end{table}