\begin{table}%t1
%\begin{center}
\par
\caption{All measured squared visibilities of the 2002 run, grouped per filter.
PA is the position angle (counted from North to East) of the interferometric
baseline projected onto the sky.}
%\vspace{2ex}
\begin{tabular}{cccccc}
\hline
\hline\noalign{\smallskip}
Date  & Filter & Spat. freq.     & PA    & $V^2$ & $\sigma(V^2)$ \\
(MJD) &        & (arcsec$^{-1}$) & (deg) &       &               \\
\hline
52~427 & $K$203  & 37.70 & 128.44 & 0.1656 & 0.0054 \\    
52~429 & $K$203  & 37.27 & 122.93 & 0.1885 & 0.0050 \\    
52~429 & $K$203  & 37.32 & 123.35 & 0.1901 & 0.0050 \\      
52~430 & $K$203  & 26.68 & 122.37 & 0.4030 & 0.0117 \\      
52~430 & $K$203  & 26.69 & 122.63 & 0.3961 & 0.0100 \\      
52~431 & $K$203  & 37.62 & 131.03 & 0.1688 & 0.0048 \\   
\hline
52~427 & $K$215  & 35.01 & 121.57 & 0.2347 & 0.0052 \\      
52~429 & $K$215  & 35.25 & 123.75 & 0.2167 & 0.0055 \\      
52~430 & $K$215  & 25.18 & 122.97 & 0.4533 & 0.0071 \\      
52~431 & $K$215  & 35.46 & 131.41 & 0.2288 & 0.0054 \\  
\hline
52~427 & $K$222  & 34.02 & 122.02 & 0.2581 & 0.0055 \\      
52~429 & $K$222  & 34.25 & 124.28 & 0.2568 & 0.0057 \\      
52~429 & $K$222  & 34.30 & 124.74 & 0.2535 & 0.0056 \\      
52~430 & $K$222  & 24.44 & 123.38 & 0.5336 & 0.0108 \\      
52~431 & $K$222  & 34.36 & 131.70 & 0.2522 & 0.0058 \\  
\hline   
52~425 & $K$239  & 42.09 &  93.42 & 0.0867 & 0.0054 \\      
52~427 & $K$239  & 31.08 & 116.61 & 0.2937 & 0.0083 \\      
52~429 & $K$239  & 32.00 & 125.74 & 0.2861 & 0.0111 \\      
52~430 & $K$239  & 22.74 & 124.06 & 0.5719 & 0.0099 \\      
52~431 & $K$239  & 31.94 & 132.04 & 0.2886 & 0.0082 \\       
\hline
\end{tabular}
\label{table:obsdata}
%\end{center}
\par
\end{table}