Soop
Handbook of Geostationary Orbits
E. M. Soop, 1983
East-west acceleration, extrapolated from table 2, pp 287
λ degrees |
acceleration |
λ change |
ΔV per year |
Δλ |
Longitude |
× 1e-9 m/s² |
0.001°/day² |
m/s/y |
°/year² |
0 W |
21.3 W |
0.65 W |
0.67 W |
87 W |
15 W |
6.3 E |
0.19 E |
0.20 E |
25 W |
30 W |
29.6 E |
0.90 E |
0.97 E |
129 E |
45 W |
43.5 E |
1.33 E |
1.38 E |
184 E |
60 W |
|
|
|
|
75 W |
|
|
|
|
90 W |
|
|
|
|
105 W |
|
|
|
|
120 W |
|
|
|
|
135 W |
|
|
|
|
150 W |
|
|
|
|
165 W |
|
|
|
|
180 W |
|
|
|
|
165 E |
|
|
|
|
150 E |
|
|
|
|
135 E |
|
|
|
|
120 E |
|
|
|
|
105 E |
|
|
|
|
90 E |
|
|
|
|
75 E |
|
|
|
|
60 E |
33.0 W |
1.01 W |
1.04 W |
139 W |
45 E |
54.3 W |
1.65 W |
1.71 W |
228 W |
30 E |
58.3 W |
1.77 W |
1.84 W |
245 W |
15 E |
45.5 W |
1.38 W |
1.44 W |
192 W |
note: large Δλ > 180° isn't "real", but implies a large oscillation and reversal