Thales to develop software-defined radar to track satellites and space debris in low-Earth orbit

The radar will enable French space experts to detect and track military space satellites and enhance military space surveillance missions.
Nov. 12, 2025
2 min read

Key Highlights

Questions and answers:

  • What is the primary purpose of the AURORE radar system? To provide continuous monitoring and tracking of satellites and space debris in low-Earth orbit to enhance space situational awareness and military space surveillance.
  • How does the AURORE radar support French military operations? It enables detection and tracking of military satellites and other spacecraft to strengthen France's military space surveillance capabilities.
  • What makes the AURORE radar system advanced? It is a software-defined system that delivers high-resolution imagery, rapid responsiveness, and is part of a modular architecture to address emerging threats like ballistic and hypersonic missiles.

PARIS – The French Defence Procurement Agency (DGA) in Paris needed ground-based low orbit space surveillance radar system to watch satellites and space debris in low orbit from Earth. They found a solution from The Thales Group Limours site in Paris.

The radar provides continuous monitoring and tracking of several different space objects simultaneously. It will strengthen French space-monitoring, and will be the largest surveillance radar deployed in Europe, Thales officials say.

The radar also will enable French space experts to detect and track military space satellites and other spacecraft to enhance military space surveillance missions in low-Earth orbit.

Thales Limours is a major production and development center for advanced radar and space surveillance technologies, and is responsible for designing and manufacturing key systems like the AURORE space surveillance radar.

Real-time tracking

AURORE is part of the French Action and Space Resilience (ARES) program, and operates in the UHF band to provide real-time tracking and high-resolution space environment imagery. Thales Limours also builds the Ground Fire radar for the French SAMP/T NG air defense system, which can detect drones and ballistic missiles. It has a range of about 250 miles, and offers full azimuth and elevation coverage.

The Thales AURORE is a software-defined radar system designed to deliver a high-resolution picture of space with rapid responsiveness to low-Earth-orbit activity for space situational awareness and military space surveillance.

AURORE represents a modular architecture for emerging threats such as ballistic and hypersonic missiles. Its architecture will form the backbone of a family of UHF radars to protect against emerging ballistic and hypersonic threats.

For more information contact Thales online at www.thalesgroup.com, or the French Defence Procurement Agency (DGA) at www.defense.gouv.fr/en.

About the Author

John Keller

Editor-in-Chief

John Keller is the Editor-in-Chief, Military & Aerospace Electronics Magazine--provides extensive coverage and analysis of enabling electronics and optoelectronic technologies in military, space and commercial aviation applications. John has been a member of the Military & Aerospace Electronics staff since 1989 and chief editor since 1995.

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