PRISMA Mango formation-flying spacecraft

Mango was the maneuvering spacecraft in Sweden’s PRISMA formation-flying testbed. It combined GPS relative navigation, a vision-based sensor, and radio-frequency metrology with autonomous guidance and control. Star trackers and reaction wheels controlled its attitude; propulsion enabled orbit changes around the nonmaneuvering Tango target. The mission also flight-tested green-propellant and microthruster technologies. The development team later became OHB Sweden.