Please make a donation to support Gunter's Space Page.
Thank you very much for visiting Gunter's Space Page. I hope that this site is useful and informative for you.
If you appreciate the information provided on this site, please consider supporting my work by making a simple and secure donation via PayPal. Please help to run the website and keep everything free of charge. Thank you very much.

CERES 1, 2, 3


CERES (Capacité de Renseignement Electromagnétique Spatiale or Space Signal Intelligence Capacity) is a French ELINT satellite system, consisting of three closely positioned satellites that are designed to detect and locate ground signals, along with ground control and user ground segments.

CERES is the first operational interception system for the French defence agency and draws on the experience acquired from the ESSAIM and ELISA demonstrators:

Airbus Defence and Space has been entrusted with the space segment comprising the three satellites, while Thales is responsible for the payload and the user ground segment. The two manufacturers are the joint prime contractors for the entire system. In addition, Thales Alenia Space acts as a subcontractor to Airbus Defence and Space in supplying the platform. Originally the ELITE bus was to be used, but a mission-specific platform was eventually developed.

The satellites were launched in 2021 (delayed from 2020) on a Vega rocket.

Nation: France
Type / Application: SIGINT
Operator: DGA
Contractors: Airbus Defence and Space (prime); Thales Alenia Space (bus)
Equipment: SIGINT payload
Propulsion: ?
Power: Deployable solar array, batteries
Lifetime: 8 years
Mass: 446 kg
Orbit: 670 km × 670 km, 75°
Satellite COSPAR Date LS Launch Vehicle Remarks
CERES 1 2021-105A 16.11.2021 Ko ELV Vega with CERES 2, 3
CERES 2 2021-105B 16.11.2021 Ko ELV Vega with CERES 1, 3
CERES 3 2021-105C 16.11.2021 Ko ELV Vega with CERES 1, 2

Cite this page: