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Size: 2749
Comment:
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Size: 2531
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 7: | Line 7: |
| || λ degrees || acceleration || λ change || ΔV per year || Δλ || λ degrees || acceleration || λ change || ΔV per year || Δλ || || Longitude || × 1e-9 m/s² || 0.001°/day² || m/s/y || °/year² || Longitude || × 1e-9 m/s² || 0.001°/day² || m/s/y || °/year² || |
|| λ degrees || acceleration || λ change || ΔV per year || Δλ || || Longitude || × 1e-9 m/s² || 0.001°/day² || m/s/y || °/year² || |
| Line 21: | Line 21: |
| ||<)> 180 W ||<)> 34.2 W ||<)> 1.04 W ||<)> 1.08 W ||<)> 139 W ||<)> 165 E ||<)> 6.6 W ||<)> 0.02 W ||<)> 0.21 W ||<)> 3 W || | ||<)> 180 W ||<)> 34.2 W ||<)> 1.04 W ||<)> 1.08 W ||<)> 139 W || |
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 |
120 E |
45 W |
43.5 E |
1.33 E |
1.38 E |
177 E |
60 W |
46.5 E |
1.42 E |
1.47 E |
189 E |
75 W |
38.7 E |
1.18 E |
1.22 E |
157 E |
90 W |
22.3 E |
0.68 E |
0.71 E |
91 E |
105 W |
0.3 E |
0.01 E |
0.01 E |
1 E |
120 W |
23.3 W |
0.71 W |
0.73 W |
95 W |
135 W |
43.0 W |
1.31 W |
1.36 W |
175 W |
150 W |
54.4 W |
1.63 W |
1.69 W |
217 W |
165 W |
50.8 W |
1.55 W |
1.60 W |
207 W |
180 W |
34.2 W |
1.04 W |
1.08 W |
139 W |
165 E |
6.6 W |
0.02 W |
0.21 W |
3 W |
150 E |
25.3 E |
0.77 E |
0.80 E |
103 E |
135 E |
52.3 E |
1.59 E |
1.65 E |
212 E |
120 E |
65.3 E |
1.99 E |
2.06 E |
265 E |
105 E |
58.9 E |
1.79 E |
1.86 E |
239 E |
90 E |
34.5 E |
1.05 E |
1.09 E |
140 E |
75 E |
0.0 W |
0.0 W |
0.0 W |
0.0 W |
60 E |
33.0 W |
1.01 W |
1.04 W |
135 W |
45 E |
54.3 W |
1.65 W |
1.71 W |
220 W |
30 E |
58.3 W |
1.77 W |
1.84 W |
236 W |
15 E |
45.5 W |
1.38 W |
1.44 W |
184 W |
NOTE: large Δλ isn't "real", but implies a large oscillation and reversal. The oscillation is not sinusoidal, because the "restoring force" isn't linear with distance from "center"
The above table is for east/west oscillations due to the Earth's sideways bulges, in the absence of tidal forces from the Moon and the Sun. There will also be large accelerations east/west and north/south from lunar and solar tides. As a wild guess, whatever vertical effect that tides have on the ocean will be magnified some power of the GEO radius in earth radius units (6.61)