\begin{table}%t3
%\centering
\par
\caption{\label{table3} SDSS colors of (5201) Ferraz-Mello.}
\begin{tabular}{c c c c }
\hline\hline
Color  index & Night 1          &  Night 2 &  Mean        \\
\hline
 $g-r$         &  $0.66\pm0.05$   &  $0.57\pm0.10$    &   $0.62\pm0.06$       \\
 $r-i$         &  $0.39\pm0.05$   &  $0.32\pm0.10$    &   $0.36\pm0.06$       \\
 $r-z$         &   --             &  $0.60\pm0.05$    &   --         \\
\hline
\end{tabular}
\end{table}