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Satellite orbital period (Kepler third law) depends on orbital radius and central body mass: T² ∝ a³.
Formel
Apply T = 2π√(a³/GM)
- T
- 2π√(a³/GM) — 2π√(a³/GM)
- GM
- GM value — Variable used in the calculation
Steg-för-steg-guide
- 1Input orbital radius or planet name with altitude
- 2Apply T = 2π√(a³/GM)
- 3Results show period in hours/days
Lösta exempel
Ingång
ISS at 400 km altitude around Earth
Resultat
T ≈ 90 minutes
16 orbits per day
Vanliga misstag att undvika
- ✕Confusing orbital radius with altitude
- ✕Forgetting Earth radius in altitude conversion
Vanliga frågor
Does satellite speed change with altitude?
Yes, inverse √r relationship; lower orbits faster.
Redo att beräkna? Prova den kostnadsfria Satellite Period-kalkylatorn
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