\begin{table}%t1
%\centering
\par
\caption{\label{Classes}Number of objects with unambiguous spectral classification that were
observed by the SDSS.   }
\begin{tabular}{cccc}
\hline\hline
Class & Unambiguous Class. & Asteroids in SDSS & SDSS Observ.\\
\hline
V          &     42            &       11 (11)     & 35 (32)    \\  
A          &     17            &       --           & --          \\
S          &     741           &       153 (128)   & 304 (237)   \\
Q          &      7            &       --           & --          \\
O          &      3            &       --           & --          \\
$\mathcal{L}$         &    117            &       33 (27)     & 79 (66)    \\
C          &    451            &       93 (86)     & 191 (167)  \\
X          &    383            &       97 (91)     & 176 (164)  \\
D          &     99            &       27 (25)     & 50 (42)     \\    
\hline 
\end{tabular}
\end{table}