Low Earth Orbit Radar System for Spacecraft, Debris, Asteroids and Missiles. Space Traffic Control.
"Earth should field four radar systems in geostationary orbit, and preferably at least a couple large ones in the Lagrangian points , to keep track of everything in orbits below, in other words between the radar and Earth's atmosphere." - Marcin R. Kubik Radar in space will not be limited or disturbed by Earth's atmosphere, so less powerful systems can be used, than ground based ones and all of Earth's LEO can be put under space traffic control. This will be necessary as more public and private entities start to enter orbits on regular bases without placing permanent craft in LEO. Most satellites do not change position or accelerate, many things do: 1. Missiles 2. Debris 3. Satellites 4. Spacecraft 5. Derelicts 6. Incoming asteroids 7. Alien spacecraft 8. High weather balloons 9. Lost humans in space suits These should all be things that are kept track of. Objects' direction of flight and velocity should be determined and live feed through a ...