A high Earth orbit is a geocentric orbit with an altitude above that of a geosynchronous orbit (35,786 kilometres (22,236 mi)).
To-scale diagram of low, medium and high earth orbits
Example of satellite in High Earth Orbit 
- ^ Orbital periods and speeds are calculated using the relations 4π²R³ = T²GM and V²R = GM, where R = radius of orbit in metres, T = orbital period in seconds, V = orbital speed in m/s, G = gravitational constant ≈ 6.673×10−11 Nm²/kg², M = mass of Earth ≈ 5.98×1024 kg.
- ^ Approximately 8.6 times when the moon is nearest (363 104 km ÷ 42 164 km) to 9.6 times when the moon is farthest (405 696 km ÷ 42 164 km).