\begin{table}%t4
\caption{\label{table_ucac2_only}Sample of Upper Scorpius objects with a counterpart in the UCAC2
catalogue only.}
\small%\centerline

\begin{tabular}{lccccccccc}
\hline\hline
Name &  RA     & Dec    & SpT & $R$ & $W(\rm H\alpha)$ & $r$  & $\mu_{\alpha} \cos \delta$ & $\mu_{\delta}$ & Prob. \\
     &  (J2000) & (J2000) &     & [mag] & [\AA] & [\arcsec] & [mas yr$^{-1}$] & [mas yr$^{-1}$] & [\%] \\
\hline
USco-155655.5-225839 & 15 56 55.5 & --22 58 39 & M0 & 13.1 & --1.9 & 1.533 & --11.8 $\pm$ 4.6 & --21.5 $\pm$ 4.6 & 99.9 \\
USco-160132.9-224231 & 16 01 32.9 & --22 42 31 & M0 & 14.6 & --1.4 & 0.957 & --9.9 $\pm$ 4.6 & --8.5 $\pm$ 4.6 & 99.5 \\
USco-160142.6-222923$^a$ & 16 01 42.6 & --22 29 23 & M0 & 13.5 & --0.6 & 1.332 & --50.1 $\pm$ 8.8 & --54.2 $\pm$ 8.8 & $\ll$0.1 \\
USco-160325.6-194438$^a$ & 16 03 25.6 & --19 44 38 & M2 & 15.4 & --1.4 & 0.578 & --49.7 $\pm$ 8.8 & 33.4 $\pm$ 8.9 & $\ll$0.1 \\ 
USco-160428.4-190441 & 16 04 28.4 & --19 04 41 & M3 & 13.5 & --5.0 & 0.567 & --3.1 $\pm$ 8.7 & --17.2 $\pm$ 8.8 & 99.8 \\
USco-160528.5-201037 & 16 05 28.5 & --20 10 37 & M1 & 14.1 & --1.9 & 0.915 & --6.9 $\pm$ 8.7 & --24.0 $\pm$ 8.6 & 99.9 \\
USco-160545.4-202308 & 16 05 45.4 & --20 23 08 & M2 & 14.4 & --35.0 & 1.033 & 9.5 $\pm$ 9.6 & --2.4 $\pm$ 9.1 & 77.9 \\
USco-160647.5-202232 & 16 06 47.5 & --20 22 32 & M2 & 13.9 & --3.2 & 0.212 & -29.7 $\pm$ 8.8 & --10.7 $\pm$ 8.8 & 95.4 \\
USco-160707.7-192715 & 16 07 07.7 & --19 27 15 & M2 & 14.0 & --5.0 & 1.268 & --7.3 $\pm$ 8.6 & --28.7 $\pm$ 8.6 & 99.9 \\
USco-160726.8-185521$^{a,b}$ & 16 07 26.8 & --18 55 21 & M1 & 14.1 & --1.9 & 0.128 & --3.3 $\pm$ 8.8 & 15.8 $\pm$ 9.2 & 0.4 \\
USco-160801.4-202741 & 16 08 01.4 & --20 27 41 & K8 & 12.8 & --2.3 & 0.667 & --13.2 $\pm$ 8.8 & --31.3 $\pm$ 8.8 & 99.8 \\
USco-160801.5-192757 & 16 08 01.5 & --19 27 57 & M4 & 14.0 & --3.6 & 1.234 & --20.9 $\pm$ 8.7 & --12.8 $\pm$ 9.1 & 99.5 \\
USco-160804.3-194712 & 16 08 04.3 & --19 47 12 & M4 & 14.0 & --5.2 & 0.647 & --8.4 $\pm$ 8.8 & --3.0 $\pm$ 8.8 & 97.7 \\
USco-160818.4-190059 & 16 08 18.4 & --19 00 59 & M3 & 14.1 & --3.7 & 0.644 & 3.3 $\pm$ 9.0 & --25.8 $\pm$ 8.8 & 99.8 \\
USco-160845.6-182443$^a$ & 16 08 45.6 & --18 24 43 & M3 & 13.7 & 0.5 & 1.780 & --37.5 $\pm$ 8.9 & --66.3 $\pm$ 8.7 & $\ll$0.1 \\
USco-160903.9-193944 & 16 09 03.9 & --19 39 44 & M4 & 14.6 & --7.2 & 1.891 & --7.6 $\pm$ 8.9 & --34.8 $\pm$ 9.0 & 99.8 \\
USco-160913.4-194328 & 16 09 13.4 & --19 43 28 & M3 & 14.9 & --1.6 & 0.183 & --2.4 $\pm$ 9.1 & --29.4 $\pm$ 9.0 & 99.8 \\
USco-160954.4-190654 & 16 09 54.4 & --19 06 54 & M1 & 13.5 & --3.1 & 1.051 & --15.0 $\pm$ 8.8 & --15.3 $\pm$ 8.8 & 99.8 \\
USco-161021.5-194132$^a$ & 16 10 21.5 & --19 41 32 & M3 & 14.0 & --4.3 & 0.386 & 15.7 $\pm$ 8.9 & 21.8 $\pm$ 9.0 & $\ll$0.1 \\
USco-161024.7-191407 & 16 10 24.7 & --19 14 07 & M3 & 14.9 & --3.7 & 0.678 & --13.5 $\pm$ 8.7 & --29.9 $\pm$ 8.9 & 99.9 \\
USco-161043.9-192225 & 16 10 43.9 & --19 22 25 & M3 & 14.0 & --2.3 & 0.906 & --4.5 $\pm$ 8.7 & --31.2 $\pm$ 8.7 & 99.8 \\
USco-161420.2-190648 & 16 14 20.2 & --19 06 48 & K5 & 13.2 & --52.0 & 1.462 & 3.4 $\pm$ 13.4 & --34.6 $\pm$ 12.4 & 99.6 \\
\hline
\end{tabular}
\medskip
$^a$ Object classified as candidate interloper ($\mathcal{P}$~$<$ 0.1\% within the uncertainties, see Fig.~\ref{vectorpointdiag});
$^b$ resolved as a  visual multiple system and discarded from the list of outlier candidates. \\
Note. All the objects come from \citet{2002AJ....124..404P} sample. $r$~is the distance between the object and its closest UCAC2~counterpart. The membership probability is indicated in the last column.
\end{table}