\begin{table}%t4
\caption{\label{MOID}Sample of orbit adjustment (semi-major axis for briefness
here) and MOID calculated with observational datasets available immediately before
and after our observations, compared with the complete dataset available on July 6, 2009.}
\par
%%\centering

\par
\begin{tabular}{lrrrrrr}
\hline \hline
\noalign{\smallskip}
Asteroid & a before & a after & a present & MOID before &
MOID after & MOID present \\
\hline
 2006 KD1  & 1.610261 & 2.482955 & 2.483163 & 0.35501 & 0.41254 & 0.41225 \\
 2008 KE6  & 0.815169 & 1.487399 & 1.685202 & 0.00177 & 0.01904 & 0.02243 \\
 2008 KF6  & 2.279096 & 2.298772 & 2.325204 & 0.03458 & 0.03719 & 0.03864 \\
 2008 KN11 & 1.733161 & 1.694478 & 1.708350 & 0.00101 & 0.00099 & 0.00099 \\
 2008 UT2  & 1.795989 & 1.798609 & 1.804049 & 0.02341 & 0.02359 & 0.02357 \\
 2008 EM7  & 1.230006 & 1.240259 & 1.238430 & 0.02553 & 0.01720 & 0.01864 \\
\hline
\end{tabular}\vspace*{2mm}
\end{table}