\begin{table}%t1
\caption{\label{observ}Journal of observations for $\upsilon$~Sgr. The 7th column gives the information, how many visibility measurements were obtained for each observation. The error in 8th~column is the adopted uncertainty of visibility in percent derived from scatter of calibrated visibilities. In the cases where only one calibrator can be used, we estimated the error from calibrated visibilities also using suspicious calibrators, which were not taken into account for computing the mean visibility.}
%\centering
\small
\begin{tabular}{c c c c c c c l}
\hline
\hline
No. &	Date &		Base&	\multicolumn{2}{c}{Projected baseline}& Calibrators& Nbr&	Err\\
&	&		&	length&	PA&		HD number& & $[\%]$	\\
&	&		&	$[$m$]$& $[$deg$]$&	&	&\\
\hline
(1)&	2007-06-22T09&	G0--H0&	20.3&	82.1&	124897; 167618; 168454&		1&	10\\
(2)&	2007-06-22T02&	G0--H0&	20.8&	36.2&	124897; 167618; 168454&		1&	10\\
(3)&	2007-07-04T07&	G0--H0&	26.6&	79.7&	168454&		1&	20\\
(4)&	2007-06-22T06&	G0--H0&	31.8&	73.7&	124897; 167618; 168454&		1&	10\\
(5)&	2007-05-17T05&	D0--H0&	45.6&	44.4&	168454; 177716&		1&	15\\
(6)&	2007-04-24T09&  D0--H0&	63.2&	69.1&	167618&		3&	10\\
(7)&	2007-05-08T09&	D0--G1&	69.7&	138.5&	167618&		2&	10\\
(8)&	2007-04-10T07&	U1--U4& 96.0&	26.5&	169916&		1&	20\\
(9)&	2008-05-17T10&	U1--U4&	123.5&	66.6&	142804, 175775& 1&	5\\
\hline
\end{tabular}
\end{table}