\begin{table}%ta.3
%\centering
\par
  \caption {{\label{tab:tab_3}Orbital data for the Neptune Trojans at JD~2~454~200.50 (\protect\url{ftp://ftp.lowell.edu/pub/elgb/astorb.html}).}} 
  \begin{tabular}{ccccccccccc}
\hline \hline
 {$\#$} &  {Name} & 
 {$a$ (AU)}  &  {$e$} &  {$i$ (deg)} &
 {$M$ (deg)} &  {$\omega$ (deg)}  &  {$\Omega$ (deg)} & 
 {$P_{\rm lib}$ (kyr)} &  {$\varphi_0$ (deg)} &  {$\Delta\varphi$ (deg)}\\  
\hline
1 & 2001QR322  &30.190 &0.029 &1.3  &60.2  &154.8 &151.7 &9.23 &68.10 &25.90 \\  
2 & 2004UP10   &30.099 &0.025 &1.4  &334.1 &2.2   &34.8  &8.86 &61.44 &10.5  \\ 
3 & 2005TN53   &30.070 &0.062 &25.0 &280.3 &88.6  &9.3   &9.42 &58.95 &6.61  \\ 
4 & 2005TO74   &30.078 &0.051 &5.3  &260.1 &306.9 &169.4 &8.80 &60.91 &6.88  \\ 
5 & 2006RJ103  &29.973 &0.028 &8.2  &226.6 &35.4  &120.8 &8.87 &60.45 &6.13  \\ 
6 & 2007VL305  &29.956 &0.061 &28.1 &348.5 &216.1 &188.6 &9.57 &61.08 &14.26 \\ 
\hline
\end{tabular}
\end{table}