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The Alpha mission demonstrates a shift to smaller, modular nanosatellites for cost-effective space exploration. This study details system engineering for a pilot satellite, focusing on attitude control and radio communications for enhanced mission readiness.

Keywords:
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Area of Science:

  • Aerospace Engineering
  • Satellite Systems Design

Background:

  • The aerospace industry is transitioning from large, custom satellites to swarms of smaller, modular nanosatellites.
  • Commercial off-the-shelf components increase reliability and reduce mission costs.
  • Nanosatellite development offers modularity and lower risk for rapid deployment.

Purpose of the Study:

  • To discuss system engineering approaches for modeling and maturing the design of a pilot nanosatellite.
  • To focus on the attitude control system of a carrier nanosatellite and radio frequency communications for femto-satellites.
  • To mature the technological readiness level (TRL) for satellite deployment.

Main Methods:

  • System engineering for modeling and design maturation.
  • Development and testing of an attitude control system for a carrier nanosatellite.
  • Implementation and testing of radio frequency communication systems for femto-satellites.

Main Results:

  • Achieved ChipSat to ChipSat and ChipSat to ground station communication.
  • Successfully implemented packet creation, error correction, preamble appending, and signal filtering.
  • Completed controller traceability/verification, software/hardware testing, and inertial measurement unit tuning.

Conclusions:

  • The Alpha mission pilot satellite design has been significantly matured through rigorous system engineering.
  • Key subsystems, including attitude control and RF communications, have demonstrated readiness for deployment.
  • The project advances the technological readiness level (TRL) for modular nanosatellite swarms.