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Related Experiment Videos

Advanced stellar compass onboard autonomous orbit determination, preliminary performance.

Maurizio Betto1, John L Jørgensen, Peter S Jørgensen

  • 1Technical University of Denmark, Oersted.DTU, bld. 327, DK - 2800 Kgs. Lyngby, Denmark. mbe@oersted.dtu.dk

Annals of the New York Academy of Sciences
|June 29, 2004
PubMed
Summary

Autonomous spacecraft navigation is now possible using advanced star trackers. This new method, the autonomous navigation (AutoNav) module, enables onboard orbit determination without prior knowledge, reducing mission costs and risks.

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Area of Science:

  • Space exploration
  • Astrodynamics
  • Robotics

Background:

  • Deep space missions face significant navigation challenges, primarily relying on expensive and failure-intolerant ground-based systems.
  • Current navigation methods impose constraints on spacecraft systems and limit operational flexibility.
  • Autonomous navigation is crucial for future deep space exploration endeavors.

Purpose of the Study:

  • To present a novel autonomous onboard navigation method for spacecraft.
  • To assess the robustness and accuracy of this method using an advanced stellar compass (ASC).
  • To evaluate the feasibility of integrating an autonomous navigation (AutoNav) module into an ASC.

Main Methods:

  • Development of an autonomous onboard navigation algorithm utilizing an advanced stellar compass (ASC).

Related Experiment Videos

  • Ground testing of the AutoNav module at Mauna Kea Observatories.
  • Evaluation of performance in solving the lost-in-space problem with single-planet observations.

    • Main Results:

    • The autonomous navigation method demonstrated robustness in solving the lost-in-space problem.
    • Preliminary accuracy assessments with a single planet and observation were encouraging.
    • Integration of the AutoNav module into the ASC did not degrade attitude measurements.

    Conclusions:

    • The developed autonomous navigation method shows significant promise for future deep space missions.
    • Onboard navigation capabilities can reduce mission costs and enhance operational resilience.
    • Further development and consolidation are identified for optimizing the AutoNav system.