\begin{table}%t1
\par
\caption{\label{tab1}Observing parameters.}
\small
%\centerline
{
\begin{tabular}{lllccc}
\hline\hline
Cluster&  RA       & Dec   & Obs. time & Array & Date    \\
       &  J2000    & J2000 & minutes   &       & dd-mm-yy  \\
\hline
A209   & 01 31 57.00 & $-$13 34 35.0 &   20 & C &  15-Apr.-2004  \\
       &             &               &   90 & D &  03-Jul.-2004  \\
A521   & 04 54 12.00 & $-$10 15 00.0 &   360& B/C& 22-Sep.-2002  \\
A697   & 08 42 57.76 & $+$36 21 45.3 &   50 & C &  30-Mar.-1996   \\
A851   & 09 42 48.60 & $+$47 00 00.0 &   20 & C &  15-Mar.-1995 \\
       &             &               &   70 & D &  03-Apr.-2000 \\
A1213  & 11 16 40.00 & $+$29 16 00.0 &   90 & C &  06-Mar.-2008 \\
       &             &               &   90 & C/D& 02-Jun.-2008 \\
A1351  & 11 42 32.50 & $+$58 32 08.0 &   15 & D &  15-Mar.-1995 \\
       &             &               &  120 & C &  03-Apr.-2000 \\
A1758  & 13 32 32.00 & $+$50 30 36.0 &  150 & D &  11-Mar.-2003 \\
       &             &               &  150 & C &  06-May-2004 \\
A1995  & 14 52 47.50 & $+$58 03 08.0 &  120 & C &  03-Apr.-2000 \\
       &             &               &  15  & D &  15-Mar.-1995  \\
A2034  & 15 10 17.00 & $+$33 31 00.0 &  30 & C &  06-Aug.-2001  \\
       &             &               &  30 & D &  24-Mar.-2003 \\
A2294  & 17 23 13.80 & $+$85 53 21.0 &  15 & D &  15-Mar.-1995 \\
       &             &               &  60 & C &  01-Apr.-2000 \\
A3444  & 10 23 50.11 & $-$27 15 15.8 &  240 & A/B& 02-Oct.-2003 \\
       &             &               &  240 & C/D& 29-May.-2004 \\
CL1446+26&14 49 28.70& $+$26 07 54.10&  120 & C &  01-Apr.-2000   \\
\hline
\end{tabular}}
\smallskip
  Column~1: cluster name; Cols.~2,~3: 
observation pointing  (RA J2000, Dec J2000); Col.~4: on source observing time; 
Col.~5: VLA configuration; Col.~6: observing dates. 
\end{table}