\begin{table}%T6
\caption{\label{mvprop}Amplitude of proper motions of the main IRS~13E
sources (from Ott \etal \cite{ott2}). }
%\centering
\par
   \begin{tabular}{ c c l}
\hline\hline
  Name              &  mas/yr      &    ~~~km~s$^{-1}$ \\
\hline 
          13E1   &    5.50  &          207 $\pm$ 14 \\       
          13E2   &    8.20  &          310 $\pm$ 19 \\      
          13E3   &    7.54  &          285 $\pm$ 270 \\     
          13E4   &    7.77  &          294 $\pm$ 32 \\      
\hline
   \end{tabular}
\end{table}