Space Technology 5: pathfinder for future micro-sat constellations

The Space Technology 5 project, currently in the implementation phase, is part of the National Aeronautics and Space Administration´s New Millennium Program. Space Technology 5 is a constellation of three micro-satellites, with a target launch date of December 2005. A three-month flight demonstration phase is planned. Space Technology 5 addresses technology challenges for future micro-satellite missions, as well as test and operations strategies for multi-spacecraft missions. By validating the technologies, science capability and constellation concepts in flight, Space Technology 5 enables future missions to use these technologies and concepts at reduced risk. This paper describes the Space Technology 5 mission, and the applicability of the technologies, spacecraft, and mission concepts to future missions. It also discusses the validation approach for the Space Technology 5 mission in general.