Table 2 Estimated values of the four parameters of the three types of spot shapes of Image II *

138.07

2.86E-3

-0.89

0.21

3.72E-2

144.76

1.73E-3

-0.74

0.30

1.08E-2

198.19

1.68E-3

-0.65

0.48

1.70E-2

294.20

3.01E-3

-0.26

0.36

2.60E-2

367.35

3.88E-3

-0.37

1.10

2.77E-2

228.51

2.63E-3

-0.58

0.49

2.37E-2

99.63

9.31E-4

0.26

0.35

1.02E-2

41.02

1.78E-2

-0.14

1.35

2.43E-2

433.28

6.11E-2

-0.08

1.68

7.35E-3

467.53

2.24E-3

-0.17

2.96

6.77E-3

60.19

4.40E-3

-0.18

2.60

1.09E-2

62.10

6.17E-3

-0.01

1.59

1.43E-2

212.82

1.83E-2

-0.12

2.04

1.27E-2

217.38

2.46E-2

0.07

0.70

7.14E-3

56.92

1.59E-3

0.28

3.51

2.69E-3

69.96

1.68E-4

0.31

3.02

2.36E-3

58.17

5.02E-4

0.38

2.44

1.55E-3

60.20

3.81E-4

0.73

1.75

1.92E-3

52.05

4.66E-4

0.35

2.39

9.64E-4

59.46

6.22E-4

0.41

2.62

1.90E-3

6.59

5.59E-4

0.19

0.67

6.78E-4