\begin{table}%t3
\caption{Spot parameters.}\label{tab3}
%\centering
\par
\begin{tabular}{ccccccccc}
\hline \hline
Filter & $\lambda _{1}$ & $\beta _{1}$ & $\gamma
_{1}$ & $\lambda _{2}$ & $\beta _{2}$ & $\gamma _{2}$&$T_{{\rm Spot}}$(K) & $\chi ^{2}$ \\
\hline
1993 & $N=60$ &  &  &  &  &  &  &  \\
$B$ & 282.4 $\pm $ 4.8 & 79.1 $\pm $ 8.5 & 37.2 $\pm $ 13.9 &  &  & & 3830 $\pm $ 200 & 65.2  \\
$V$ & 280.3 $\pm $ 5.0 & 78.2 $\pm $ 6.8 & 34.5 $\pm $ 9.9 &  &  &  & 3830 $\pm $ 200 & 44.8  \\
$R$ & 288.4 $\pm $ 5.9 & 79.1 $\pm $ 1.4 & 33.0 $\pm $ 0.8 &  &  &  & 3830 $\pm $ 200 & 30.6  \\
$I$ & 281.1 $\pm $ 6.1 & 79.8 $\pm $ 6.7 & 33.6 $\pm $ 11.7 &  &  &  & 3830 $\pm $ 200 & 43.1  \\
1994 &$N=147$  &  &  &  &  &  &  &  \\
$B$ & 45.2 $\pm $ 5.3 & 45(fixed) & 13.8 $\pm $ 0.5 & 133.1 $\pm $ 4.3 &
45(fixed) &
15.8 $\pm $ 0.5 & 4050 $\pm $ 540 & 156.3  \\
$V$ & 53.3 $\pm $ 6.8 & 45(fixed) & 12.3 $\pm $ 0.7 & 142.5 $\pm $ 6.4 &
45(fixed) &
13.4 $\pm $ 0.8 & 4050 $\pm $ 540 &98.4  \\
$R$ & 50.5 $\pm $ 15.2 & 45(fixed) & 10.5 $\pm $ 1.6 & 138.5 $\pm $ 11.6 &
45(fixed)
& 13.1 $\pm $ 1.5 & 4050 $\pm $ 540 & 21.2  \\
$I$ & 42.6 $\pm $ 15.3 & 45(fixed) & 10.8 $\pm $ 1.5 & 145.0 $\pm $ 10.4 &
45(fixed)
& 14.0 $\pm $ 1.4 & 4050 $\pm $ 540 & 16.9  \\
1995 & $N=141$ &  &  &  &  &  &  &    \\
$B$ & 267.0 $\pm $ 2.2 & 74.1 $\pm $ 2.4 & 36.5 $\pm $ 2.8 &  &  &  & 4070 $\pm $ 340 & 66.3  \\
$V$ & 269.3 $\pm $ 2.6 & 73.3 $\pm $ 2.7 & 32.2 $\pm $ 2.7 &  &  &  & 4070 $\pm $ 340 & 71.9  \\
$R$ & 266.9 $\pm $ 3.1 & 70.0 $\pm $ 3.0 & 27.5 $\pm $ 3.2 &  &  &  &  4070 $\pm $ 340 & 48.0  \\
$I$ & 270.0 $\pm $ 3.6 & 71.1 $\pm $ 3.6 & 26.0 $\pm $ 2.8 &  &  &  &  4070 $\pm $ 340 & 55.3  \\
1996 & $N=138$ &  &  &  &  &  &  &    \\
$B$ & 68.3 $\pm $ 10.6 & 45(fixed) & 8.2 $\pm $ 0.9 &  &  &  &  4800 $\pm $ 370 & 383.2  \\
$V$ & 77.1 $\pm $ 28.6 & 45(fixed) & 6.4 $\pm $ 1.2 &  &  &  &  4800 $\pm $ 370 & 336.3  \\
$R$ & 49.4 $\pm $ 11.8 & 44.5 $\pm $ 63.0 & 5.9 $\pm $ 4.3 &  &  &  &  4800 $\pm $ 370 & 323.6 \\
$I$ & 54.1 $\pm $ 16.8 & 52.4 $\pm $ 66.3 & 6.3 $\pm $ 5.9 &  &  &  &   4800 $\pm $ 370 & 292.9  \\
1997 & $N=65$  &  &  &  &  &  &  &    \\
$B$ & 283.8 $\pm $ 4.6 & 4.5 $\pm $ 2.2 & 11.0 $\pm $ 1.2 &  &  &  &  5330 $\pm $ 270 & 229.3  \\
$V$ & 252.0 $\pm $ 8.5 & 74.3 $\pm $ 6.5 & 25.7 $\pm $ 6.1 &  &  &  & 5330 $\pm $ 270 &  227.5  \\
$R$ & 269.9 $\pm $ 11.6 & 35.9 $\pm $ 110.3 & 8.5 $\pm $ 8.1 &  &  &  & 5330 $\pm $ 270 &  89.0  \\
$I$ & 216.1 $\pm $ 15.9 & 52.4 $\pm $ 56.4 & 9.4 $\pm $ 7.4 &  &  &  & 5330 $\pm $ 270 &  248.4  \\
1998 & $N=137$ &  &  &  &  &  &  &   \\
$B$ & 120.3 $\pm $ 3.3 & 31.6 $\pm $ 15.6 & 14.3 $\pm $ 2.0 & 28.2 $\pm $ 9.5 & 22.9 $\pm $ 34.2 & 7.8 $\pm $ 1.8 & 3680 $\pm $ 180 &  304.6  \\
$V$ & 118.7 $\pm $ 4.1 & 5.0 $\pm $ 39.5 & 11.9 $\pm $ 1.0 & 37.7 $\pm $ 10.6 & 41.9 $\pm $ 55.9 & 9.3 $\pm $ 6.2 &  3680 $\pm $ 180 &  224.4  \\
$R$ & 126.7 $\pm $ 3.7 & 2.5 $\pm $ 33.9 & 11.8 $\pm $ 0.7 & 34.0 $\pm $ 10.8 & 45.5 $\pm $ 33.7 & 8.4 $\pm $ 3.5 &  3680 $\pm $ 180 &  192.2  \\
$I$ & 127.0 $\pm $ 4.5 & 3.7 $\pm $ 74.0 & 11.2 $\pm $ 1.2 & 37.9 $\pm $ 9.5 & 48.0 $\pm $ 29.7 & 10.3 $\pm $ 3.8 &  3680 $\pm $ 180 &  190.0  \\
1999 & $N=132$ &  &  &  &  &  &  &    \\
$B$ & 247.2 $\pm $ 3.8 & 7.5 $\pm $ 47.9 & 11.3 $\pm $ 0.9 & 136.7 $\pm $ 8.4 & 33.5 $\pm $ 46.9 & 8.1 $\pm $ 3.4 & 4220 $\pm $ 180 &   234.7  \\
$V$ & 246.1 $\pm $ 4.6 & 10.1 $\pm $ 61.4 & 10.5 $\pm $ 14.6 & 141.5 $\pm $ 11.5 & 20.7 $\pm $ 32.0 & 5.9 $\pm $ 1.4 & 4220 $\pm $ 180 &   121.9  \\
$R$ & 245.3 $\pm $ 6.4 & 23.2 $\pm $ 12.8 & 9.2 $\pm $ 1.1 & 139.4 $\pm $ 11.6 & 2.0 $\pm $ 25.1 & 6.6 $\pm $ 1.1 & 4220 $\pm $ 180 &   122.3  \\
$I$ & 242.6 $\pm $ 8.2 & 13.6 $\pm $ 40.5 & 9.1 $\pm $ 1.5 & 140.1 $\pm $ 12.9 & 2.5 $\pm $ 47.9 & 6.1 $\pm $ 1.2 &  4220 $\pm $ 180 &  100.6  \\
2000 & $N=153$ &  &  &  &  &  &  &    \\
$B$ & 128.2 $\pm $ 5.2 & 48.5 $\pm $ 41.2 & 14.9 $\pm $ 9.6 & 43.7 $\pm $ 14.8 & 56.0 $\pm $ 23.2 & 8.8 $\pm $ 4.1 & 4290 $\pm $ 240 &   192.3  \\
$V$ & 132.0 $\pm $ 6.2 & 33.4 $\pm $ 24.9 & 11.5 $\pm $ 2.5 & 50.2 $\pm $ 12.1 & 53.4 $\pm $ 20.4 & 10.0 $\pm $ 3.6 &  4290 $\pm $ 240 &  104.5  \\
$R$ & 130.0 $\pm $ 7.8 & 49.9 $\pm $ 17.2 & 11.6 $\pm $ 2.8 & 52.4 $\pm $ 12.3 & 56.3 $\pm $ 24.5 & 10.1 $\pm $ 4.2 &  4290 $\pm $ 240 &  86.3  \\
$I$ & 136.6 $\pm $ 10.6 & 60.5 $\pm $ 14.3 & 12.9 $\pm $ 3.5 & 54.6 $\pm $ 12.5 & 55.2 $\pm $ 28.0 & 9.9 $\pm $ 4.4 & 4290 $\pm $ 240 &   70.7  \\
2001 & $N=144$  &  &  &  &  &  &  &    \\
$B$ & 283.1 $\pm $ 2.7 & 0.0 $\pm $ 24.2 & 11.4 $\pm $ 0.4 & 43.1 $\pm $ 4.9
& 0.0$\pm
$22.3 & 8.3 $\pm $ 0.7 & 3930 $\pm $ 380 &   265.8  \\
$V$ & 286.2 $\pm $ 4.0 & 0.05 $\pm $ 31.4 & 10.3 $\pm $ 0.5 & 44.7 $\pm$ 7.4 & 0.0 $\pm$ 39.1 & 7.1 $\pm $ 0.9 & 3930 $\pm $ 380 &   146.3  \\
$R$ & 292.3 $\pm $ 4.4 & 10.1 $\pm $ 65.4 & 10.9 $\pm $ 1.7 & 47.3 $\pm $ 9.3 & 0.0 $\pm $ 33.9 & 6.6 $\pm $ 1.1 &  3930 $\pm $ 380 &  131.9  \\
$I$ & 288.1 $\pm $ 7.0 & 0.0 $\pm $ 84.4 & 9.0 $\pm $ 0.7 & 43.9 $\pm $ 9.7 & 0.0 $\pm $ 34.1 & 6.3 $\pm $ 1.2 &  3930 $\pm $ 380 &  110.2  \\
2002 & $N=138$ &  &  &  &  &  &  &  \\
$B$ & 305.5 $\pm $ 3.7 & 0.0 $\pm $ 38.3 & 9.7 $\pm $ 0.5 & 71.4 $\pm $ 4.3
& 26.8 $\pm$ 33.6 & 11.1 $\pm $ 3.0 & 3240 $\pm $ 140 &   270.9  \\
$V$ & 307.4 $\pm $ 4.3 & 11.2 $\pm $ 48.1 & 9.9 $\pm $ 1.5 & 69.8 $\pm $ 5.1 & 36.4 $\pm $ 22.8 & 11.5 $\pm $ 2.8 &  3240 $\pm $ 140 &  149.3  \\
$R$ & 307.5 $\pm $ 4.8 & 0.1 $\pm $ 45.2 & 9.3 $\pm $ 0.7 & 69.2 $\pm $ 6.1 & 0.0 $\pm $ 27.5 & 9.3 $\pm $ 0.7 & 3240 $\pm $ 140 &   140.4  \\
$I$ & 313.7 $\pm $ 6.7 & 15.5 $\pm $ 67.8 & 9.4 $\pm $ 2.3 & 72.0 $\pm $ 9.3 & 30.2 $\pm $ 21.1 & 9.5 $\pm $ 1.6 & 3240 $\pm $ 140 &   101.3  \\
2003 & $N=132$  &  &  &  &  &  &   &  \\
$B$ & 72.7 $\pm $ 3.0 & 11.1 $\pm $ 67.4 & 11.9 $\pm $ 2.0 & 320.1 $\pm $ 7.1 & 0.5 $\pm $ 24.3 & 6.5 $\pm $ 0.8 & 3490 $\pm $ 150 &   200.3  \\
$V$ & 74.0 $\pm $ 3.6 & 11.9 $\pm $ 43.2 & 12.0 $\pm $ 1.9 & 323.8 $\pm $ 7.6 & 2.5 $\pm $ 34.1 & 6.7 $\pm $ 0.9 &  3490 $\pm $ 150 &  152.6  \\
$R$ & 74.6 $\pm $ 5.5 & 7.9 $\pm $ 30.5 & 11.2 $\pm $ 0.9 & 328.3 $\pm $ 10.6 & 1.1 $\pm $ 29.9 & 6.0 $\pm $ 1.1 & 3490 $\pm $ 150 &   103.0  \\
$I$ & 73.4 $\pm $ 6.1 & 8.3 $\pm $ 15.5 & 10.8 $\pm $ 0.7 & 326.3 $\pm $ 12.0 & 1.7 $\pm $ 29.1 & 5.8 $\pm $ 1.3 &  3490 $\pm $ 150 &  121.0 \\
 \hline
\end{tabular}
\end{table}