DRAGONSAT

DRAGONSat was a 2000s pair of nanosatellites that were to demonstrate autonomous rendezvous and docking (ARD) in low Earth orbit (LEO) for NASA. It was intended to gather flight data with a global positioning system (GPS) receiver strictly designed for space applications to gather flight data in the space environment. ARD is the capability of two independent spacecraft to rendezvous in orbit and dock without crew intervention. The mission failed when the DRAGONSats failed to separate from their carrier spacecraft.