Spacecraft Design

MMS Mission is possible due to: advances in spacecraft systems miniaturization (Integrated Electronics Module, miniaturized instruments, etc.) and small satellite manufacturing techniques. Enhancing technologies directly applicable to MMS include: advances in instrument miniaturization (plasma and E-field measurements), data systems (on-board processing, storage, compression), s/c attitude, inter-s/c communication, s/c autonomous operation, and ground operations

Electric Propulsion
  • They are licensed to use the Russian static plasma engine that uses xenon as its fuel and will deliver an Isp of 1,500 sec. An ion engine developed with DERA (U.K.) will fly on ARTEMIS
  • Thermal Dissipation
  • Work is being done on two phase fluid, deployable heat pipes and radiators.
Optical
  • ISL (optical intersatellite links) for ARTEMIS are being developed.
  • Intra-satellite data links to replace the heavy copper cabling are also under development.
Power
  • Li-ion batteries (90 W/kg) are being investigated.
  • GaAs (on Ge) solar panels offering 15-20 kW are under development in near time frame