\begin{table}%t1
%\centering
\par
    \caption{Results of the nearest-neighbor method with
      $d_{\rm T}=10\arcsec$: number of selected associations $A$, number of
      objects having a counterpart~$fN$, estimated number of proper
      associations $R$, and corresponding completeness and reliability.}
    \label{tab:ppv10}
    \begin{tabular}[h]{lll}\hline\hline
                  & USNO    & 2MASS \\\hline
       $A$        & 6570 & 3635   \\
       $f\cdot N$ & 6837 & 3726 \\
       $R$        & 5081 & 2961 \\
       $c$        & 0.74 & 0.79 \\
       $r$        & 0.77 & 0.81 \\\hline
    \end{tabular}
\end{table}