Table 3 Visibility analysis for the fixed in-plane GPS receiver, where VI: Visible interval, POV: Probability of Visibility, APOV: Average Probability of Visibility and OX: Orbit X, where X denotes A, B, C, D, E or F

VI

73.32^o

56.89^o

30.13^o

100.06^o

46.66^o

30.13^o

2.89^o

19.32^o

POV

20.40%

15.80%

8.40%

28%

13%

8.40%

0.80%

5.40%

OB

B 2

B 3

B 1, B 3

B 1, B 4

B 2, B 3

B 2, B 4

B 1, B 2, B 4

B 1, B 3, B 4

VI

83.58^o

70.36^o

31.04^o

76.02^o

22.02^o

31.04^o

16.36^o

29.58^o

POV

23.20%

19.50%

8.60%

21.20%

6.10%

8.60%

4.50%

8.20%

OC

C 2

C 3

C 1, C 3

C 1, C 4

C 2, C 3

C 2, C 4

C 1, C 2, C 4

C 1, C 3, C 4

VI

76.76^o

74.79^o

32.13^o

77.32^o

23.32^o

32.13^o

20.79^o

22.76^o

POV

21.30%

20.80%

8.90%

21.50%

6.50%

8.90%

5.80%

6.30%

OD

D 2

D 3

D 1, D 3

D 1, D 4

D 2, D 3

D 2, D 4

D 1, D 2,D 4

D 1,D 3, D 4

VI

74.80^o

76.78^o

32.13^o

77.29^o

23.29^o

32.13^o

22.78^o

20.80^o

POV

20.80%

21.30%

8.90%

21.50%

6.50%

8.90%

6.30%

5.80%

OE

E 2

E 3

E 1, E 3

E 1, E 4

E 2, E 3

E 2, E 4

E 1, E 2, E 4

E 1, E 3, E 4

VI

70.36^o

83.53^o

31.09^o

76.02^o

22.02^o

31.09^o

29.53^o

16.36^o

POV

19.50%

23.20%

8.60%

21.20%

6.10%

8.60%

8.20%

4.50%

OF

F 2

F 3

F 1, F 3

F 1, F 4

F 2, F 3

F 2, F 4

F 1, F 2, F 4

F 1, F 3, F 4

VI

56.88^o

73.32^o

30.14^o

100.06^o

46.66^o

30.14^o

19.32^o

2.88^o

POV

15.80%

20.40%

8.40%

28%

13%

8.40%

5.40%

0.80%

APOV

20.10%

20.10%

8.50%

23.50%

8.40%

8.50%

5.10%

5.10%