\begin{table}%T4
\caption{ \label{table_vis_xihya} \object{$\xi$ Hya} squared visibilities.}
%\centering
\par
\begin{tabular}{ccccccl}
\hline\hline\\[-3.5mm]
Julian Date & Stations & $N$ & $B$ (m) & Az. ($\deg$) & $V^2 \pm {\rm stat} \pm {\rm syst}$ & Calibrators\\
\hline
%-----
2~452~681.743&B3-D1& $333$ & $23.650$ & $27.39$ & $0.9539\pm0.0376\pm0.0008$ &$\alpha$ Crt\\
2~452~681.747&B3-D1& $460$ & $23.727$ & $26.48$ & $0.9520\pm0.0305\pm0.0008$ &$\alpha$ Crt\\
2~452~681.751&B3-D1& $343$ & $23.801$ & $25.51$ & $0.9281\pm0.0334\pm0.0007$ &$\alpha$ Crt\\
2~452~681.777&B3-D1& $452$ & $23.995$ & $20.50$ & $0.9555\pm0.0304\pm0.0008$ &$\alpha$ Crt\\
2~452~681.781&B3-D1& $332$ & $23.989$ & $19.60$ & $0.9383\pm0.0337\pm0.0008$ &$\alpha$ Crt\\
2~452~681.785&B3-D1& $427$ & $23.975$ & $18.89$ & $0.9424\pm0.0305\pm0.0008$ &$\alpha$ Crt\\
2~452~682.729&B3-D1& $354$ & $23.407$ & $29.82$ & $0.9560\pm0.0251\pm0.0009$ &$\alpha$ Crt\\
2~452~682.752&B3-D1& $295$ & $23.846$ & $24.85$ & $0.9519\pm0.0280\pm0.0009$ &$\alpha$ Crt\\
2~452~682.792&B3-D1& $297$ & $23.904$ & $17.19$ & $0.9420\pm0.0317\pm0.0007$ &$\alpha$ Crt\\
2~452~682.801&B3-D1& $403$ & $23.773$ & $15.47$ & $0.9351\pm0.0237\pm0.0007$ &$\alpha$ Crt\\
2~452~760.583&B3-M0& $350$ & $138.521$ & $60.37$ & $0.2383\pm0.0058\pm0.0069$ &$\alpha$ Crt\\
2~452~760.600&B3-M0& $343$ & $136.690$ & $63.11$ & $0.2520\pm0.0061\pm0.0073$ &$\alpha$ Crt\\
2~452~760.605&B3-M0& $391$ & $135.918$ & $63.96$ & $0.2568\pm0.0059\pm0.0075$ &$\alpha$ Crt\\
2~452~760.635&B3-M0& $433$ & $129.762$ & $68.49$ & $0.2971\pm0.0058\pm0.0077$ &$\alpha$ Crt\\
2~452~760.640&B3-M0& $388$ & $128.458$ & $69.20$ & $0.2978\pm0.0061\pm0.0077$ &$\alpha$ Crt\\
2~452~760.645&B3-M0& $284$ & $127.037$ & $69.92$ & $0.3221\pm0.0071\pm0.0084$ &$\alpha$ Crt\\
2~452~761.624&B3-M0& $429$ & $131.833$ & $67.24$ & $0.2714\pm0.0063\pm0.0097$ &51 Hya\\
2~452~761.628&B3-M0& $303$ & $130.716$ & $67.94$ & $0.2787\pm0.0077\pm0.0100$ &51 Hya\\
2~452~761.665&B3-M0& $421$ & $119.296$ & $73.16$ & $0.3592\pm0.0063\pm0.0131$ &51 Hya\\
2~452~761.671&B3-M0& $402$ & $117.300$ & $73.87$ & $0.3681\pm0.0067\pm0.0135$ &51 Hya\\
2~452~761.675&B3-M0& $340$ & $115.485$ & $74.49$ & $0.3727\pm0.0087\pm0.0136$ &51 Hya\\
2~452~762.604&B3-M0& $470$ & $135.192$ & $64.66$ & $0.2554\pm0.0021\pm0.0092$ &51 Hya\\
2~452~762.609&B3-M0& $454$ & $134.296$ & $65.44$ & $0.2600\pm0.0022\pm0.0094$ &51 Hya\\
2~452~762.614&B3-M0& $386$ & $133.310$ & $66.21$ & $0.2689\pm0.0049\pm0.0097$ &51 Hya\\
2~452~762.623&B3-M0& $441$ & $131.274$ & $67.59$ & $0.2771\pm0.0027\pm0.0100$ &51 Hya\\
%-----
\hline
\end{tabular}
\end{table}