\begin{table}%T2
%%\centering
\par
\caption{(c). Linear polarization of MS~Ser in 2002.}\label{tab2c}
\begin{tabular}{cccccccccccc}
\hline\hline%\noalign{\smallskip}
 band & $<P_x>$ &$\sigma$ & $\chi^2/(N-1)$ &$F_{\rm var}$&$<P_y>$&$\sigma$&$\chi^2/(N-1)$&$F_{\rm var}$ &$<P>$&$\sigma$&$P_{\rm s}$  \\
%\noalign{\smallskip}
\hline%\noalign{\smallskip}
 $U$ &$-$0.029 & 0.150 & 1.72 &  93 &$-$0.034 & 0.176 & 1.86 &  97 & 0.399 & 0.095 & $0.399 \pm 0.039$ \\
 $B$ & 0.036 & 0.099 & 3.91 &$>$99& 0.029 & 0.127 & 9.71 &$>$99& 0.125 & 0.061 & $0.130 \pm 0.025$ \\
 $V$ & 0.036 & 0.059 & 2.39 &  99 & 0.046 & 0.058 & 2.46 &  99 & 0.084 & 0.026 & $0.087 \pm 0.012$ \\
 $R$ &$-$0.005 & 0.046 & 2.32 &  99 & 0.005 & 0.033 & 2.63 &  99 & 0.039 & 0.031 & $0.040 \pm 0.013$ \\
 $I$ & 0.005 & 0.057 & 1.48 &  87 &$-$0.008 & 0.029 & 1.70 &  92 & 0.053 & 0.033 & $0.060 \pm 0.011$ \\
%\noalign{\smallskip}
\hline
\end{tabular}
\end{table}