\begin{table} %t1
\par
\caption{\label{tab1}Optimal mixture parameters\tablefootmark{\dag} for the HIPPARCOS (HIP) and GCS samples.}
\small%\centering
\par
 \begin{tabular}{lcrlccccccc}
  \hline \hline \noalign{\smallskip}
Sample   & $\#S(P)$ &    $P$& Pop. &$\sigma_{U}$&$\sigma_{V}$&$\sigma_{W}$&  $U$ &  $V$   &  $W$ & $\varepsilon~[^\circ]$  \\
\hline 
HIP& 13~551 &  $|(U,V,W)|$       = 230&t $92\%$&  28.4~$\pm$~ 0.6&15.6~$\pm$~2.5 &12.8~$\pm$~0.7& $-$10.7~$\pm$~0.3&$-$13.9~$\pm$~ 0.4&$-$7.2~$\pm$~0.2 & $10\pm2$  \\ 
   &    &                        &T $8\%$& 66.8~$\pm$~2.3 &39.4~$\pm$~10.6&41.8~$\pm$~1.9&$-$13.0~$\pm$~0.6&$-$68.6~$\pm$~3.1&        --8.5~$\pm$~0.2 & $5\pm3$ \\ 
   & 13~671   &  $|W|$             = 180&D $98\%$& 32.7~$\pm$~1.1&15.2~$\pm$~10.7&16.4~$\pm$~0.4 & $-$10.8~$\pm$~0.3&$-$16.6~$\pm$~ 0.4 &$-$7.2~$\pm$~0.2& $8\pm5$\\ 
   &    &                        &H $2\%$& 156.4~$\pm$~ 10.4& 88.5~$\pm$~53.2& 70.5~$\pm$~4.3&$-$5.3~$\pm$~2.5&$-$233.1~$\pm$~ 20.4&$-$13.7~$\pm$~3.6& $-4\pm5$ \\ 
GCS& 13~185   &  $|(U,V,W)|$       = 230&t $96\%$&30.6~$\pm$~0.4&  17.5~$\pm$~1.4&15.2~$\pm$~0.3& $-$10.0~$\pm$~0.3&$-$15.2~$\pm$~0.3& $-$6.9~$\pm$~0.2&$ 9\pm1$\\ 
   &    &                        &T $4\%$&68.8~$\pm$~2.7&30.0~$\pm$~15.0&40.0~$\pm$~2.0& $-$8.6~$\pm$~0.7&$-$81.8~$\pm$~4.3&$-$11.6~$\pm$~0.5  &$6\pm2$\\ [0.10cm]
   & 13~235   &  $|W|$             = 170&D $99\%$& 32.5~$\pm$~0.7&17.8~$\pm$~5.7&16.5~$\pm$~0.3& $-$9.9~$\pm$~0.3&$-$16.9~$\pm$~0.3&$-$7.1~$\pm$~  0.2 & $ 8\pm4$   \\ 
   &    &                        &H $1\%$&151.0~$\pm$~14.7&107.9~$\pm$~  54.0&70.3~$\pm$~ 5.7& $-$12.2~$\pm$~2.1&$-$230.0~$\pm$~24.1&$-$18.3~$\pm$~       3.3& $-3\pm7$  \\ \hline
  \end{tabular}
\tablefoot{\tablefoottext{\dag}{The displayed quantities are: 
size of the optimal sample, sampling parameter, segregated population 
(t = thin disc, T = thick disc, D = total disc, H = halo) and  mixture proportion,  velocity dispersions, 
mean velocities (both in  {km}~\rm{s}$^{-1}$), and vertex deviation.}}
\end{table}