The UoSAT-C,D & E Technology Demonstration Satellites

The University of Surrey (UK) planned a small, inexpensive spacecraft (UoSAT-C) to be launched by NASA on a DELTA launch vehicle as a secondary payload into low-Earth orbit in 1989. This launch has been postponed, but the University has obtained two launch slots on ARIANE. Two spacecraft, UoSATs D & E are currently under construction at The UoSAT Spacecraft Engineering Research Unit at Surrey and they involve collaboration with international experimenters. The spacecraft will carry the majority of the payloads from the postponed UoSAT-C mission. UoSAT-D & E will established by the spacecraft launched NASA, develop further the objectives preceding UoSAT-1 and UoSAT-2 into low Earth, polar orbit by The paper describes the architecture and experiments of the satellite including: Satellite Communications using digital store-&-forward techniques serving remote and under-developed areas and the amateur radio community. Space Technology providing an in-orbit demonstration and operational evaluation of novel technologies and techniques such as transputers and solar cell evaluation. Space Science supporting sophisticated, yet inexpensive space science objectives studying the radiation environment in low Earth orbit such as Cosmic Particle Detection and Radiation Total Dose Measurement