\begin{table}%t3
  %\centering
\caption{Deconvolved MIDI acquisition images parameters.}\label{tab:resu}
\begin{tabular}{lcc}
\hline\hline
Parameter & Mean & rms\\
\hline
Mean $X$ axis& 289 mas &$\pm$57\\
Mean $Y$ axis&429 mas&$\pm$111\\
Mean ratio& 0.68& $\pm$0.07 \\
Mean PA angle& 103.9$^\circ$ &$\pm$2.8$^\circ$\\
\hline
  \end{tabular} 
 \end{table}