\begin{table}%t7
%\centering
\caption{\label{motions}Measured displacements. All values given in mas.}
\small
\begin{tabular}{lccccc}
\hline\hline
Target             & Target error & Frame Error & Total error   & Measured    & Significance \\
                   &              &             &               & displacement& ($\sigma$)   \\ \hline
\rxzerohuit        & 12           &   81        &  128          & 117       &  0.91  \\
\rxzeroquatre      & 26           &   151       &  184          & 209       &  1.13  \\
\rbsdouze          & 8.5          &   73        &  123          & 1096      &  8.9   \\
\hline
\end{tabular}
\end{table}