\begin{table}%t3
\caption{\label{tab_pm}Proper motion $(\mu_{\alpha}\cos{\delta},~\mu_{\delta})$ solutions [mas/yr].} \small%\centerline
{     
\begin{tabular}{c c c}          
\hline\hline                   
\# & SSSPM~1930 & SSSPM~2003 \\    
\hline                              
1 & $-24.1 \pm 18.4,~ -853.7 \pm ~~4.8$ & $-32.3 \pm 11.7,~ -882.8 \pm 23.2$ \\
2 & $-11.0 \pm ~~8.1,~ -883.5 \pm 17.9$ & $-19.4 \pm ~~5.4,~ -879.7 \pm 25.8$ \\
3 & $-10.5 \pm ~~8.0,~ -871.8 \pm ~~5.8$ & $-19.3 \pm ~~5.0,~ -859.2 \pm 11.7$ \\
4 & $-16.4 \pm ~~3.1,~ -861.6 \pm ~~2.7$ & $-18.0 \pm ~~7.4,~ -855.2 \pm ~~3.8$ \\
\hline                                            
\end{tabular}}
\smallskip
Notes. \#1~Based on the original 4 SSS epochs for SSSPM~1930 and 3~SSS~epochs (without $B_J$) for SSSPM~2003;
\#2~with all the uncorrected positions from Table~\ref{tab_astm1930} (8~epochs) and Table~\ref{tab_astm2003}
       (7~epochs), respectively;
\#3~after correcting two DENIS epochs;
 \#4~finally adopted run:  with corrected DENIS epochs and after transforming all SSS and DENIS positions to the 2MASS system.
\end{table}