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The French space agency (CNES) selects Exotrail to optimise mega constellation operations

The CNES selects Exotrail to optimise mega constellation operations

The French space agency (CNES) selects Exotrail to optimise mega constellation operations


In February 2022, following a competitive tender process, CNES selected Exotrail to complete a research and technology study to optimise the operations of mega constellations.

The study will focus on mid and low earth orbit where thousands of satellites are soon expected to be operational and propelled by electric propulsion. It will determine the best operational procedures to implement in mega constellation’s flight dynamic system including station keeping and collision avoidance – two critical operations.

Ultimately, Exotrail will design and build algorithms able to optimise and automate mega constellation operations, improving efficiency and reducing human error.

Sébastien Duménil, Chief Commercial Officer commented on the study: “We are very proud to have been selected by CNES for this mega constellation operations optimisation study. Exotrail’s experts will leverage our core capabilities in flight dynamics and electric propulsion, key building blocks of our ExoOPS™ software suite, dedicated to mission simulation and constellation operations”.


ExoOPS™ is Exotrail’s cloud-based software dedicated to space mission simulation and operations. It is used by commercial and institutional customers such as CNES (the French Space Agency), Eutelsat, Thales Alenia Space and many others. ExoOPS™ supports satellite operators, satellite manufacturers, space agencies and launch service providers throughout their mission lifecycle, from preliminary design to satellite deployment, through to in-space operations. ExoOPS™ offers a complete and powerful flight dynamics environment, dedicated to constellations of propelled satellites.

Within ExoOPS™ software suite, ExoOPS™- Mission Design is a custom-designed and built operational software for mission analysis and flight dynamics – with an emphasis on propulsion. It is cloud-based, user friendly and gives users unique insights into mission analysis and propulsion planning. It allows constellation designers, flight dynamic engineers, system engineers and control centre operators to meet the challenges of designing, building and launching constellations of satellites.

With ExoOPS™ - Mission Design, you can quickly and easily:

  • Create and optimize constellation design.
  • Understand and identify the best strategy to deploy satellites into orbit.
  • Perform quick trade-offs on satellite performances.
  • Simulate maneuvers along a specific satellite mission.

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