\begin{table}%t4
\caption{Summary of the tests' results.}
\label{tab:ident_output}
%\centerline
 {
\begin{tabular}{lrrr}
\hline
\hline
               &        NS  &         CS &          CM \\  \hline 
Prop. pairs & 3~596~522  &  6~535~286 &  70~834~326 \\ 
Prop. ids.  &     1006  &      3041 &      10~849 \\ 
Pub. ids.   &       305  &        549 &       1449 \\ 
\hline
\end{tabular}
}
\par
%\textsc{Note:}
NOTE:  For the tested algorithms, each row shows the
number of proposed pairs (i.e., pairs sent to the differential
correction algorithm, satisfying the control $K_{\rm min} <20~000$), the
number of proposed identifications (i.e., pairs that pass the
differential corrections, with rms of the residuals $<1.2$ arcsec) and
the number of identifications published by the MPC.
\end{table}