learn.howToCalculate
learn.whatIsHeading
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
Trinn-for-trinn guide
- 1Input orbital radius or planet name with altitude
- 2Apply T = 2π√(a³/GM)
- 3Results show period in hours/days
Løste eksempler
Inndata
ISS at 400 km altitude around Earth
Resultat
T ≈ 90 minutes
16 orbits per day
Vanlige feil å unngå
- ✕Confusing orbital radius with altitude
- ✕Forgetting Earth radius in altitude conversion
Ofte stilte spørsmål
Does satellite speed change with altitude?
Yes, inverse √r relationship; lower orbits faster.
Klar til å beregne? Prøv den gratis Satellite Period-kalkulatoren
Prøv selv →