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Ceres 1, 2, 3

CapacitÉ de Renseignement Electromagnétique Spatiale


Designation 49464 / 21105A
49465 / 21105B
49466 / 21105C
Launch date 16 Nov 2021
Country of origin France
Mission Military: SIGINT
Perigee/Apogee 679 km
Inclination 75°
Period 98.2 min
Launch vehicle Vega #20

Three identical LEO satellites for the French military to procure the signal intelligence. Equipped with high-performance sensors, these satellites also offer all-weather, daily revisit frequency and are capable of collecting data enabling the characterisation and location of transmitters.

CNES assists DGA for project management; it supplies and operates the satellite control ground segment.

Followup of the Elisa and Essaim programs.

sat-index articles

n2yo.com tracking

Technical data


Prime contractor Airbus Defence and Space
Platform Astrobus-M
Mass at launch 225 kg
Dry mass  
Solar array  
DC power  
Design lifetime  

Thales is in charge of the ground segment and satellite bus.

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