\begin{table}%t2
%\centering
\par
%\renewcommand{\arraystretch}{1.03}
\caption{The results of model-fitting at six epochs.} 
\begin{tabular}{ccccccccc}
 \hline\hline 
 Freq. (GHz)& Comp.& $S$ (Jy)& $R$ (mas)&
$\theta$ (deg)& Major (mas)& Axial Ratio& $\phi$ (deg)& $T_{\rm b}$ (K)\\
(1)& (2)& (3)& (4)& (5)& (6)& (7)& (8)& (9)\\\hline
\noalign{\smallskip}
\multicolumn{9}{c}{Epoch 2001.20, ~ $\chi^2_{\nu, 2.3}=2.36$,~ $\chi^2_{\nu, 8.4}=1.76$,~ $\chi^2_{\nu,
22}=2.22$}\\\hline 
\noalign{\smallskip}
2.3& $k$& 0.517~$\pm$~0.052&0& 0& 0.37~$\pm$~0.04& 1.0&0 &$1.26\times10^{12}$\\
&$d$& 0.206~$\pm$~0.021& 1.99~$\pm$~0.03& --$176.1\pm0.6$& 0.68~$\pm$~0.03& 1.0&
0&$1.48\times10^{11}$\\
&$e$& 0.055~$\pm$~0.006& 5.85~$\pm$~0.29& 171.5~$\pm$~0.04& 3.27~$\pm$~0.05& 1.0&
0&$1.71\times10^{9}$\\
&$f$& 0.045~$\pm$~0.005& 12.69~$\pm$~0.63& 164.3~$\pm$~0.6& 3.66~$\pm$~0.07&
1.0& 0&$1.11\times10^{9}$\\
&$g$& 0.034~$\pm$~0.0034& 20.01~$\pm$~1.00& 166.5~$\pm$~0.4& 10.03~$\pm$~0.31&
1.0& 0&$1.12\times10^{8}$\\
8.4& $k$& 0.564~$\pm$~0.057& 0& 0& 0.023~$\pm$~0.010& 1.0& 0&$2.66\times10^{13}$\\
&$b$& 0.143~$\pm$~0.014& 0.71~$\pm$~0.01& --$166.0\pm0.1$& 0.19~$\pm$~0.01&
1.0& 0&$9.89\times10^{10}$\\
& $d$& 0.105~$\pm$~0.011& 2.22~$\pm$~0.01& --174.7~$\pm$~0.1& 0.59~$\pm$~0.01&
1.0&0&$7.53\times10^{9}$\\
&$e$&0.028~$\pm$~0.003& 6.06~$\pm$~0.30& 170.2~$\pm$~0.6& 3.44~$\pm$~0.15&
1.0&0&$5.91\times10^{7}$\\
&$f$& 0.039~$\pm$~0.004& 12.57~$\pm$~0.63& 165.3~$\pm$~0.5& 5.16~$\pm$~0.25&
1.0& 0&$3.66\times10^{7}$\\
&$g$& 0.017~$\pm$~0.0017& 23.68~$\pm$~1.18& 159.7~$\pm$~0.8& 7.03~$\pm$~0.62&
1.0& 0&$8.59\times10^{6}$\\
22.2& $k$& 0.626~$\pm$~0.12& 0& 0& 0.025~$\pm$~0.002& 1.0& 0&$3.58\times10^{12}$\\
&$a$&0.160~$\pm$~0.032& 0.29~$\pm$~0.01& --165.0~$\pm$~0.2& 0.14~$\pm$~0.01&
1.0& 0&$2.92\times10^{12}$\\
&$b$&0.041~$\pm$~0.0082& 0.74~$\pm$~0.02& --168.9~$\pm$~0.3& 0.042~$\pm$~0.01&
1.0& 0&$2.31\times10^{10}$\\
&$c$& 0.054~$\pm$~0.011& 1.14~$\pm$~0.01& --165.5~$\pm$~0.2& 0.33~$\pm$~0.01& 1.0& 0&$1.77\times10^{9}$\\
&$d$&0.089~$\pm$~0.022&2.27~$\pm$~0.01&--173.4~$\pm$~0.3&0.53~$\pm$~0.01&1.0&0&$1.13\times10^{9}$\\\hline
\noalign{\smallskip}
\multicolumn{9}{c}{Epoch 2001.48,~ $\chi^2_{\nu, 2.3}=1.84$,~ $\chi^2_{\nu, 8.4}=1.76$,~ $\chi^2_{\nu,
22}=1.83$}\\\hline
\noalign{\smallskip}
 2.3& $k$&
0.481~$\pm$~0.048& 0& 0& 0.35~$\pm$~0.05& 1.0& 0&$1.31\times10^{12}$\\
&$d$& 0.205~$\pm$~0.021& 2.07~$\pm$~0.03& --179.4~$\pm$~0.3& 0.45~$\pm$~0.07&
1.0& 0&$3.37\times10^{11}$\\
&$e$& 0.055~$\pm$~0.006& 6.85~$\pm$~0.34& 166.6~$\pm$~0.3& 3.62~$\pm$~0.06&
1.0& 0&$1.40\times10^{9}$\\
&$f$& 0.048~$\pm$~0.005& 13.95~$\pm$~0.70& 165.0~$\pm$~0.3& 5.10~$\pm$~0.06&
1.0& 0&$6.14\times10^{8}$\\
&$g$& 0.019~$\pm$~0.0019& 23.74~$\pm$~1.19& 165.1~$\pm$~0.2& 5.01~$\pm$~0.36&
1.0& 0&$2.52\times10^{8}$\\
8.4&$k$& 0.637~$\pm$~0.064& 0& 0& 0.12~$\pm$~0.01& 1.0& 0&$1.10\times10^{12}$\\
&$b$& 0.161~$\pm$~0.016& 0.80~$\pm$~0.01& --166.7~$\pm$~0.1& 0.30~$\pm$~0.02&
1.0& 0&$4.47\times10^{10}$\\
&$d$& 0.120~$\pm$~0.012& 2.28~$\pm$~0.02& --175.2~$\pm$~0.1& 0.58~$\pm$~0.02&
1.0& 0&$8.91\times10^{9}$\\
&$e$&0.038~$\pm$~0.004&6.458~$\pm$~0.32&168.6~$\pm$~0.4&3.33~$\pm$~0.07&1.0&0&$8.56\times10^{7}$\\
&$f$& 0.048~$\pm$~0.005& 12.75~$\pm$~0.64& 163.3~$\pm$~0.9& 7.16~$\pm$~0.29&
1.0& 0&$2.34\times10^{7}$\\
&$g$& 0.001~$\pm$~($>$0.001)& 21.98~$\pm$~1.10& 164.8~$\pm$~0.1& 2.49~$\pm$~0.12&
1.0& 0&$4.03\times10^{6}$\\
22.2&$k$& 0.624~$\pm$~0.12& 0& 0& 0.097~$\pm$~0.003& 1.0& 0&$2.37\times10^{11}$\\
&$a$& 0.143~$\pm$~0.029& 0.42~$\pm$~0.01& --165.7~$\pm$~0.2& 0.21~$\pm$~0.01&
1.0& 0&$1.16\times10^{10}$\\
& $b$& 0.002~$\pm$~($>$0.002)& 0.81~$\pm$~0.02& --165.0~$\pm$~0.3& 0.20~$\pm$~0.01&
1.0& 0&$1.79\times10^{8}$\\
&$c$&0.052~$\pm$~0.010& 1.16~$\pm$~0.01& --168.8~$\pm$~0.1& 0.35~$\pm$~0.02& 1.0& 0&$1.52\times10^{9}$\\
&$d$&0.064~$\pm$~0.013&2.31~$\pm$~0.01&--173.7~$\pm$~0.1&0.45~$\pm$~0.01&1.0&0&$1.13\times10^{9}$\\\hline
\noalign{\smallskip}
\multicolumn{9}{c}{Epoch 2001.86,~ $\chi^2_{\nu, 2.3}=1.12$,~ $\chi^2_{\nu, 8.4}=1.11$}\\
\hline
\noalign{\smallskip}
 2.3&$k$&
0.591~$\pm$~0.060& 0& 0& 0.53~$\pm$~0.02& 1.0& 0&$7.00\times10^{11}$\\
&$d$&0.226~$\pm$~0.023& 2.0~$\pm$~0.02& --176.9~$\pm$~0.2& 0.92~$\pm$~0.04&
1.0&0&$8.89\times10^{10}$\\
&$e$&0.051~$\pm$~0.005& 6.43~$\pm$~0.32& 169.3~$\pm$~0.3& 2.93~$\pm$~0.09&
1.0& 0&$1.98\times10^{9}$\\
&$f$&0.060~$\pm$~0.006& 12.72~$\pm$~0.76& 165.1~$\pm$~0.2& 5.30~$\pm$~0.10&
1.0& 0&$7.11\times10^{8}$\\
&$g$&0.028~$\pm$~0.0028& 22.01~$\pm$~1.10& 165.7~$\pm$~0.4& 8.35~$\pm$~0.34&
1.0& 0&$1.34\times10^{8}$\\
8.4&$k$&0.632~$\pm$~0.063& 0& 0& 0.10~$\pm$~0.01& 1.0& 0&$1.58\times10^{12}$\\
&$b$&0.141~$\pm$~0.014& 0.76~$\pm$~0.01& --166.4~$\pm$~0.2& 0.27~$\pm$~0.01&
1.0& 0&$4.83\times10^{10}$\\
&$d$& 0.117~$\pm$~0.012& 2.21~$\pm$~0.02& --174.0~$\pm$~0.1& 0.71~$\pm$~0.01&
1.0& 0&$5.79\times10^{9}$\\
&$e$& 0.044~$\pm$~0.004& 6.26~$\pm$~0.31& 169.6~$\pm$~0.5& 4.09~$\pm$~0.21&
1.0& 0&$6.57\times10^{7}$\\
&$f$& 0.032~$\pm$~0.003& 13.32~$\pm$~0.67& 164.8~$\pm$~0.4& 4.40~$\pm$~0.21&
1.0& 0&$4.13\times10^{7}$\\
&$g$& 0.022~$\pm$~0.0022& 22.57~$\pm$~1.13& 166.8~$\pm$~0.9& 8.58~$\pm$~1.03& 1.0& 0&$7.46\times10^{6}$\\\hline
\noalign{\smallskip}
\multicolumn{9}{c}{Epoch 2002.11,~ $\chi^2_{\nu, 2.3}=1.05$,~ $\chi^2_{\nu, 8.4}=0.98$}\\
\hline
\noalign{\smallskip}
 2.3&$k$&
0.522~$\pm$~0.052& 0& 0& 0.10~$\pm$~0.08& 1.0& 0&$1.74\times10^{13}$\\
&$d$&0.248~$\pm$~0.025& 1.81~$\pm$~0.02& --174.8~$\pm$~0.2& 0.94~$\pm$~0.05&
1.0& 0&$9.35\times10^{10}$\\
&$e$&0.057~$\pm$~0.006& 6.27~$\pm$~0.31& 169.3~$\pm$~0.2& 3.00~$\pm$~0.13&
1.0& 0&$2.11\times10^{9}$\\
&$f$&0.054~$\pm$~0.005& 13.07~$\pm$~0.65& 165.0~$\pm$~0.2& 5.05~$\pm$~0.12&
1.0& 0&$7.05\times10^{8}$\\
&$g$& 0.030~$\pm$~0.0030& 21.68~$\pm$~1.08& 166.1~$\pm$~0.4& 8.56~$\pm$~0.34&
1.0 & 0&$1.36\times10^{8}$\\
8.4&$k$& 0.555~$\pm$~0.060& 0& 0& 0.14~$\pm$~0.01& 1.0&
0&$7.07\times10^{11}$\\
&$b$&0.148~$\pm$~0.015& 0.76~$\pm$~0.01& --166.3~$\pm$~0.1& 0.32~$\pm$~0.04&
1.0& 0&$3.61\times10^{10}$\\
&$d$& 0.118~$\pm$~0.012& 2.17~$\pm$~0.02& --173.4~$\pm$~0.2& 0.70~$\pm$~0.02&
1.0& 0&$6.01\times10^{9}$\\
&$e$& 0.042~$\pm$~0.004& 6.28~$\pm$~0.31& 170.4~$\pm$~0.4& 3.89~$\pm$~0.13&
1.0& 0&$6.93\times10^{7}$\\
\hline
&$f$&0.04~$\pm$~0.004& 13.37~$\pm$~0.67& 165.4~$\pm$~0.4& 5.22~$\pm$~0.68&
1.0& 0&$3.66\times10^{7}$\\
&$g$& 0.015~$\pm$~0.0015& 23.04~$\pm$~1.15& 167.3~$\pm$~1.0& 8.24~$\pm$~0.19& 1.0& 0&$5.52\times10^{6}$\\\hline
\noalign{\smallskip}
\multicolumn{9}{c}{Epoch 2002.14,~ $\chi^2_{\nu, 2.3}=1.17$,~ $\chi^2_{\nu, 8.4}=1.11$}\\\hline
\noalign{\smallskip}
2.3&$k$&0.402~$\pm$~0.040& 0& 0& 0.20~$\pm$~0.06& 1.0& 0&$3.35\times10^{12}$\\
&$d$&0.243~$\pm$~0.024& 1.79~$\pm$~0.03& --176.7~$\pm$~0.2& 0.92~$\pm$~0.04&
1.0& 0&$9.56\times10^{10}$\\
&$e$&0.052~$\pm$~0.005& 6.19~$\pm$~0.31& 168.0~$\pm$~0.3& 2.94~$\pm$~0.10&
1.0& 0&$2.00\times10^{9}$\\
&$f$& 0.056~$\pm$~0.006& 12.83~$\pm$~0.64& 164.9~$\pm$~0.3& 5.25~$\pm$~0.13&
1.0& 0&$6.77\times10^{8}$\\
&$g$& 0.030~$\pm$~0.0030& 22.0~$\pm$~1.1& 166.6~$\pm$~0.5& 8.35~$\pm$~0.47&
1.0& 0&$1.43\times10^{8}$\\
8.4&$k$&0.529~$\pm$~0.053& 0& 0& 0.14~$\pm$~0.01& 1.0& 0&$6.74\times10^{11}$\\
&$b$& 0.137~$\pm$~0.014& 0.78~$\pm$~0.01& --166.9~$\pm$~0.2& 0.33~$\pm$~0.01&
1.0& 0&$3.14\times10^{10}$\\
&$d$& 0.118~$\pm$~0.012& 2.16~$\pm$~0.01& --173.5~$\pm$~0.1& 0.56~$\pm$~0.01&
1.0& 0&$9.39\times10^{9}$\\
&$e$& 0.043~$\pm$~0.004& 6.39~$\pm$~0.32& 170.5~$\pm$~0.6& 3.72~$\pm$~0.14&
1.0& 0&$7.76\times10^{7}$\\
&$f$&0.037~$\pm$~0.004&13.21~$\pm$~0.66& 165.3~$\pm$~0.5& 5.02~$\pm$~0.29&
1.0& 0&$3.66\times10^{7}$\\
&$g$& 0.026~$\pm$~0.0026& 23.0~$\pm$~1.15 &165.6~$\pm$~1.5& 10.52~$\pm$~1.4& 1.0& 0&$5.86\times10^{6}$\\\hline
\noalign{\smallskip}
\multicolumn{9}{c}{Epoch 2002.45,~ $\chi^2_{\nu, 2.3}=1.06$,~ $\chi^2_{\nu, 8.4}=1.05$}\\\hline
\noalign{\smallskip}
2.3&$k$&0.429~$\pm$~0.043& 0& 0& 0.30~$\pm$~0.05& 1.0& 0&$1.59\times10^{12}$\\
&$d$&0.209~$\pm$~0.021& 1.98~$\pm$~0.03& --174.9~$\pm$~0.2& 0.81~$\pm$~0.04&
1.0& 0&$1.06\times10^{11}$\\
&$e$&0.054~$\pm$~0.005& 6.47~$\pm$~0.32& 168.6~$\pm$~0.3& 2.90~$\pm$~0.08&
1.0& 0&$2.14\times10^{9}$\\
&$f$&0.056~$\pm$~0.006& 13.14~$\pm$~0.66& 165.3~$\pm$~0.3& 5.32~$\pm$~0.13&
1.0& 0&$6.59\times10^{8}$\\
&$g$&0.031~$\pm$~0.0031& 22.1~$\pm$~1.10& 165.6~$\pm$~0.6& 10.12~$\pm$~0.45&
1.0& 0&$1.01\times10^{8}$\\
8.4&$k$&0.447~$\pm$~0.045& 0& 0& 0.20~$\pm$~0.01& 1.0& 0&$2.79\times10^{11}$\\
&$b$& 0.136~$\pm$~0.014& 0.79~$\pm$~0.02& --165.9~$\pm$~0.2& 0.37~$\pm$~0.01&
1.0& 0&$2.48\times10^{10}$\\
&$d$&0.123~$\pm$~0.012& 2.22~$\pm$~0.02& --174.1~$\pm$~0.2& 0.75~$\pm$~0.01&
1.0& 0&$5.46\times10^{9}$\\
&$e$&0.046~$\pm$~0.005& 6.62~$\pm$~0.33& 168.4~$\pm$~0.5& 4.21~$\pm$~0.14&
1.0& 0&$6.48\times10^{7}$\\
&$f$&0.045~$\pm$~0.004& 13.3~$\pm$~0.66& 164.9~$\pm$~0.4& 5.27~$\pm$~0.21&
1.0& 0&$4.04\times10^{7}$\\
&$g$&0.021~$\pm$~0.0021& 22.96~$\pm$~1.15& 168.7~$\pm$~0.8& 7.07~$\pm$~1.78& 1.0& 0&$1.05\times10^{7}$\\
\hline
\end{tabular}
\par
\smallskip
Notes: (1) Observing frequency; (2) component name; (3) flux density of component; (4) separation
from the core (component~$k$); (5) PA (from noth to east); (6) major axis of the elliptical Gaussian component;
(7) ratio of the minor to major axes; (8) position angle of the major axis of the elliptical Gaussian component
from north to east; (9) brightness temperature according to the formula given in Shen et~al. (\cite{Shen97}).  
\end{table}