Sodern, founded in 1962 and headquartered in Limeil-Brévannes, France, is a leading high-technology company specializing in space instrumentation, optical systems, neutron generators, and defense-related technologies. Sodern specializes in high-precision instruments and systems for space and defense applications, focusing on delivering innovative, reliable solutions for Earth observation, space exploration, and satellite navigation. Its mission is to provide cutting-edge technologies that enhance the performance and accuracy of space missions.

Sodern primarily focuses on developing advanced optical and navigation instruments for space applications. Key areas include:

• Star Trackers and Cameras with high-precision attitude control systems for satellites and spacecraft.
• Neutron-Based Instruments for planetary exploration and scientific missions.
• Payload Deployment Support consists of optical systems and sensors for precise payload positioning and operation.
• Earth Observation Instruments include cameras and sensors for environmental monitoring and scientific research.

Astradia Star Tracker

Sodern collaborates with the European Space Agency (ESA) to provide star trackers and cameras for missions like the Ariane 6 launcher and Earth observation satellites. It also partners with NASA to supply instruments for planetary exploration, such as neutron detectors for Mars and lunar missions. It works on joint projects with CNES (French Space Agency) for satellite navigation and observation systems. Sodern integrates its star trackers into Ariane launchers for precise navigation. It also partners with companies like Airbus Defence and Space for satellite payloads.

Sodern’s core technologies include:

• Star Trackers such as SED36, Auriga, which embeds high-accuracy optical sensors for satellite attitude determination, offering precision down to arcseconds. These are compact, radiation-hardened, and optimized for long-duration missions.

Star Tracker

• Space Cameras provide high-resolution imaging systems for Earth observation and planetary exploration. It is used in missions like Sentinel (ESA’s Copernicus program).

Space Camera

• Neutron Detectors, which include instruments like the Dynamic Albedo of Neutrons (DAN) for detecting water and subsurface composition on planetary surfaces.
• Laser Altimeters for precise topographic mapping, as used in missions like NASA’s Lunar Reconnaissance Orbiter.

Sodern showcased its star trackers and cameras at a GIFAS event, highlighting their role in the Maia mini-launcher and lunar missions. Sodern’s instruments will support the Ariane 6 maiden flight, ensuring navigation accuracy. It contributes to NASA’s Psyche mission launch, with neutron detectors for asteroid analysis. Sodern also achieved delivery of over 1,000 star trackers globally, cementing Sodern’s leadership in attitude control systems.

Sodern is a key player in space instrumentation, delivering high-precision star trackers, cameras, and neutron detectors that support global space missions. Its partnerships with ESA, NASA, and ArianeGroup, combined with innovative, compact technologies, position it as a leader in the small satellite and exploration markets. Sodern’s contributions to navigation and observation systems are vital to the industry’s growth. Its future lies in advancing reusable launcher technologies and deep-space exploration, solidifying its role in a rapidly evolving space economy.

Click here to learn more about Sodern's products listed on SATNow