Orbital rendezvous simulation by analog computer

This video shows a (simplified) orbital rendezvous simulation performed on two coupled analog computers (a Telefunken RA 741 and a Dornier DO-80). The cross denotes the target while the small circle shows the space ship changing its orbit by pilot commands (the simulation runs at very high speed to show the overall effects of space dynamics). More information about this may be found at http://www.vaxman.de/analog_computing/rendezvous/rendezvous.html