\begin{table}%t4
\caption{Photometric, spectral parameters and proper motion significance for the monitored  sources.}\label{sdss}
      %\centering
\par
\begin{tabular}{cccrrrrcr}
\hline
\hline
 Source    & $r$ & Sp. Cl. & BB temp. & PL $\alpha$ &$\chi^2$ &  \multicolumn{3}{c}{Proper motion significance} \\
           & mag &         & K        &              &         & SDSS & USNO-B1 & SSA \\
\hline
 1002$-$00 & 19.17&n.a.        & 10~800  &        &    4.0 &  9.81& 9& 12.47\\
 1026$-$00 & 19.28&n.a.        & 11~900  &        &    2.5 &  6.08& 9&  5.69\\
 1036$+$01 & 18.80&QSO $z=$ 1.86&        & $-$0.28&    3.1 &  0.50& 0&  0.12\\
 1045$+$00 & 18.62&STAR        & 11~900  &        &    0.8 &  6.78& 9&  7.61\\
 1053$-$00 & 19.42&n.a.        & 10~200  &        &   11.2 &  2.26& 8&  2.18\\
 1106$+$00 & 20.46&n.a.        &130~000  &        &  238.3 &  0.61& 0&  0.27\\
 1134$+$00 & 18.43&QSO $z=$ 1.48&        & $-$0.71&   11.9 &  0.41& 0&  0.25\\ 
 1139$-$02 & 19.18&GAL?        &        & $-$1.42&    5.4 &  1.20& 0&  0.40\\
 1140$-$00 & 20.02&STAR        & 13~100  &        &   16.6 &  1.95& 0&  3.60\\
 1141$-$00 & 18.64&Unclass     &        & $-$0.61&   16.4 & 21.45& 9&  0.67\\
 1142$-$01 & 18.20&n.a.        &  7300  &        &   24.8 &  0.50& 0&  0.00\\
 1145$-$02 & 18.67&Unclass     & 11~300  &        &    2.3 &  1.40& 9&  1.97\\
 1145$+$00 & 19.57&n.a.        & 11~300  &        &    2.7 &  1.21& 0&  2.29\\
 1159$-$02 & 19.03&Unclass     &        & $-$0.39&   16.1 &  0.56& 9&  0.50\\
 1200$+$00 & 19.07&QSO $z=$ 1.65&  6300  &        &   91.0 &  0.46& 0&  0.56\\
 1205$-$00 & 18.74&n.a.        &  7300  &        &    7.1 & 11.71& 9& 13.23\\
 1208$-$00 & 19.08&n.a.        & 12~400  &        &    4.5 &  2.26& 9&  2.58\\
 1218$-$01 & 17.56&Unclass     &        & $-$1.33&    0.1 &  0.68& 9&  0.58\\
 1223$-$01 & 19.12&n.a.        & 13~100  &        &   20.5 &  2.34& 9&  2.55\\
 1234$-$01 & 19.17&n.a.        &  7600  &        &   30.8 &  0.68& 0&  1.45\\
 1254$-$01 & 19.16&n.a.        &  7600  &        &    6.3 &  1.88& 0&  2.42\\
 1300$-$02 & 18.93&Unclass     &  8000  &        &   11.5 &  9.09& 9& 10.48\\
 1316$-$00 & 19.60&n.a.        &        & $-$0.58&   26.2 &  3.11& 9&  9.06\\
 1328$+$00 & 19.77&n.a.        & 10~800  &        &    4.0 &  2.44& 9&  2.52\\
 1400$+$00 & 19.65&n.a.        &        & $-$0.03&    4.4 &  0.19& 0&  3.86\\
 1402$-$01 & 19.88&STAR        & 15~100  &        &   45.1 &  1.08& 9&  0.43\\
 1409$-$00 & 18.66&Unclass     &  8800  &        &    4.6 &  3.52& 8&  3.84\\
 1410$-$02 & 18.97&Unclass     & 12~400  &        &   16.4 & 10.69& 9&  1.13\\
 1425$-$01 & 19.08&Unclass     &        & $-$0.98&    5.6 &  0.11& 0&  0.97\\
\hline
\end{tabular}
\end{table}