Template talk:Earth orbits
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where
μ= 398,600 km3s-2 (standard gravitational parameter for the Earth)
is semi-major axis of the orbiting body.
Calculation examples:
- speed: google:(398600*(2/6600-1/7500))^.5
- period (in minutes): google:2*pi*(6600^3/398600)^.5/60
- specific orbital energy compared with stationary on Earth: google:398600*(-1/2/6600+1/6400)
The largest speed occurs in the orbit with the distance to the center of the earth ranging from the minimum to the maximum; the semi-major axis is the mean value of the two (for the LEO range: 7500 km). In this orbit the largest speed occurs at the lowest altitude.
