Once launched, the only forces governing the motion of a satellite are the force of gravity (red vector) and centrifugal force (not shown). The satellite’s speed is shown by a blue vector. You can change the speed in real time or start an automatically synchronized sequence.
Satellites will orbit in paths which are ellipses. Circular motion, as in a geostationary orbit, is achieved under very precise conditions.
Click on 'Plus' or 'Minus' to change the speed of the satellite.