Point

True distance

(m)

Fitted distance

(m)

Distortion

(m)

3 - 6

60.395

61.293

0.898

3 - 8

125.91

124.76

1.150

3 - 9

67.059

66.282

0.777

6 - 8

88.428

87.696

0.732

6 - 9

26.574

26.675

0.101

8 - 9

71.807

70.871

0.936