\begin{table}%t2
\par
\caption{Orbital elements of  the four  near-Earth asteroids. \label{tab2}}
$${ \begin{array}{cccccccccccc}
\hline\hline
\noalign{\smallskip}
{\rm Asteroid}&a&e&q&i\degr&\Omega\degr&\omega\degr&\pi\degr&H&d&R_{\rm a}&R_{\rm d}\\
&{\rm AU}&&{\rm AU}&&&&&&{\rm km}& {\rm AU}&{\rm AU}\\
\noalign{\smallskip}
\hline
1997GL3&2.278&0.784&0.493&6.7&196.6&260.2&96.8&19.74&0.56&1.00&0.78\\
2000PG3&2.827&0.858&0.419&20.5&326.8&138.5&105.3&15.74&6.56^{*}&2.09&0.44\\
2002GM2&2.202&0.807&0.425&3.4&343.5&80.0&63.5&18.51&1.00&0.67&0.88\\
2002JC9&2.256&0.829&0.386&13.7&77.4&21.1&98.5&19.10&0.76&0.44&3.55\\
\noalign{\smallskip}
\hline
\end{array}}$$
\end{table}