\begin{table}%t1
\caption{\label{t-obs}Log of PdBI observations of NGC~1961.}
%%\centerline

{\small
\begin{tabular}{cccc}
\hline\hline
Date        & Config & $N_{\rm ant}$ & 0716+714 \\
\hline
18 Dec. 2000 & C & 4 & 1.3 / 0.7 \\
21 Dec. 2000 & C & 5 & 1.0 / 0.9 \\
26 Mar. 2001 & D & 5 & 0.7 / 0.6 \\
31 Mar. 2001 & D & 4 & 0.5 / 0.4 \\
09 Jan. 2002 & B & 6 & 1.0 / 2.1 \\
03 Mar. 2003 & A & 6 & 2.0 / 1.8 \\
\hline
\end{tabular}}
\par
\smallskip
For each dataset, we list 
the configuration, the number of antennas, and the 3~mm/1~mm flux densities 
adopted for the gain calibrator 0716+714 (in mJy).
\end{table}