Orbital Mechanics: REENTRY_LEO to VENUS
Orbital mechanics reference data — gravitational parameters, planetary body properties, standard orbit definitions, and mission delta-V budgets. Covers 8 celestial bodies (Earth, Moon, Mars, Venus, Mercury, Jupiter, Saturn, Sun) and 11 orbit/trajectory types (LEO, MEO, GEO, GTO, Molniya, Hohmann transfers).
| body or orbit | escape velocity km s (km/s) | inclination deg (deg) | mean radius km (km) | mu km3 s2 (km3/s2) | notes | orbital period days (days) | semi major axis km (km) | surface gravity m s2 (m/s2) |
|---|---|---|---|---|---|---|---|---|
| SATURN | 35.5 | 2.48 | 58,232 | 37,940,585 | Orbital velocity ~9.6 km/s heliocentric | 10,783.05 | 1,426,940,000 | 10.44 |
| VENUS | 10.36 | 3.39 | 6,051.8 | 324,858.6 | Venus orbital period 224.70 days; reverse rotation | 224.7 | 108,200,000 | 8.87 |
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