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90
80
70
60
50
40
30
20
10
0 1020304050607080
0
EARTH STATION LATITUDE IN DEGREES NORTH OR SOUTH OF EQUATOR
ELEVATION IN DEGREES
" L" IS THE DIFFERENCE BETWEEN THE EARTH STATION
ANTENNA SITE LONGITUDE AND THE SATELLITE LONGITUDE
ELEVATION CHART
CHART 2
5°
10°
15°
20°
25°
30°
35°
40°
45°
50°
55°
60°
65°
70°
75°
50°
125
°
120°
115
°
110
°
105
°
100
°
95°
90
°
85
°
80
°
75°
70°
65°
50°
47.5°
45°
42.5°
40°
37.5
°
35°
32.5
°
30
°
27.5
°
25
°
47.5°
45°
42.5°
40°
37.5°
35°
32.5°
30°
27.5°
25°