For near-circular orbits like this, speed controls altitude [0] [1]. 600,000km/hr is way faster than Earth escape velocity, so anything that fast won't be orbi

For near-circular orbits like this, speed controls altitude [0] [1]. 600,000km/hr is way faster than Earth escape velocity, so anything that fast won't be orbiting Earth. [0] https://science.howstuffworks.com/satellite6.htm https://science.howstuffworks.com/satellite6.htm [1] https://en.wikipedia.org/wiki/Orbital_speed#Tangential_velocities_at_altitude https://en.wikipedia.org/wiki/Orbital_speed#Tangential_veloc...