A greater understanding of low earth orbit

Space Situational Awareness(SSA)is the understanding of the very large number of objects in orbit around the Earth,the complex and dynamic environment that they orbit in, and their interactions with that environment. Such understanding is critical to space traffic management, collision avoidance and space domain conduct monitoring—all necessary to ensureour secure access to space-based technologies. Canberra Space performs research in the science of SSA, including space surveillance, space physics, astrodynamicsand the application of machine learning to each of these fields.

Impact

Our research capability and expertise in Space Situational Awareness includesspace mission experience that quantifies the impact of astrodynamics on spacecraft in Low Earth Orbit (LEO).

We contribute to increased knowledge and preparedness within Defence regarding critical challenges relating to SSA.

Competitive advantage

Canberra Space is a global leader in SSA scienceresearchfora number ofkey reasons:

  • We have developed physics-based numerical codes with which we study ionospheric plasma aerodynamics—the aerodynamic behaviour of charged objects such as satellites orbiting at high speed in the rarefied ionospheric plasma environment. Such effects can explain observed anomalous orbital behaviour, yettheyare nottaken into accountin orbital analyses.
  • We combine high-fidelity aerodynamicandspace environmentsimulationswith orbit propagators and advanced machine learning methods to study satellite formation control and space collision avoidance approaches.
  • Our combination of space research and space mission capabilities enables us to use eachof ourcubesatmission to perform in-orbit research to support advances in SSA. This includes controlling the motion ofthespacecraftwith our space surveillance trackingtelescopes andcoupling our observations with numerical reconstructions of the astrodynamics.

Successful applications

Canberra Space’s applications of our SSA researchinclude:

  • using our optical and numerical SSA techniques to studythe reflected-sunlight light curves that are generated due to various motions of the Buccaneer Risk Mitigation Mission spacecraft
  • aero-assisted formation control strategies for the Royal Australian Air ForceM2 dual satellite program
  • applying our understanding of the physics of ionospheric aerodynamics to propose propulsion-free satellite de-orbit approaches from higher altitudes than normally thought possible
  • multiple US Air Force Office of Scientific Research (AFOSR) grants for ionospheric aerodynamic research to enable improved orbital control of LEO spacecraft
  • imaging the deployment of the Plant Flock 3p (the largest number of satellites launched on a single rocket in history) just two hours after launch
  • obtaining light curve information onPlant Flock 3pcubesats,to assistinternational universities withunderstandingand troubleshootingthe behaviour of their satellites
  • assisting CSIRO and JPL in the analysis of databyapplying the Tidbinbilla and Parkes very large radio telescopes as bi-static radar instruments for tracking near-Earth asteroids.

Partners

  • Royal Australian Air Force (RAAF)
  • Defence Science and Technology Group (DSTG)
  • USAF Air Force Office of Scientific Research (AFOSR)

Study with us

Space Situational Awareness education is offered as both afourth-year undergraduate engineering electiveand as part of our delivery of the online Master of Space Engineering and Master of Space Operations programs.

Our researchers

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Final Year UG Engineering Project Coordinator
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Chair for Intelligent Space Systems Russell Boyce
Chair for Intelligent Space Systems
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Lecturer and Space Program Coordinator Melrose Brown
Lecturer and Space Program Coordinator
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Associate Professor - Electrical Engineering  Xiuping Jia
Associate Professor - Electrical Engineering
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Associate Professor Andrew Lambert
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 Edwin Peters
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Professor Mark Pickering
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