TTC integrated subsystem for nano-satellites

Small spacecraft evolution from microsatellites down to nano-satellites naturally demands lower mass, volume and power consumption platforms which requires the use of low power consumption design and technologies. However, there is also a demand of increased robustness against the radiation environment of relatively low elevation orbits in particular for high energy ions. This paper introduces the design and performances of an integrated TTC (Tracking, Telemetry & Command) subsystem for the control link of the NanoSat OPTOS satellite.