Satellite Orbital Period Calculator

T = 2pi * sqrt(a^3 / (G*M))

Orbital Altitude (km)

Central Body

Formula

T = 2pi * sqrt(a^3 / GM)

What determines orbital period?

Orbital period depends on the semi-major axis and the mass of the central body. Higher orbits have longer periods.

What is the ISS orbital period?

The ISS orbits at about 400 km altitude with a period of roughly 92 minutes.

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