Essaim 1, 2, 3, 4

Essaim [Astrium]

The Essaim demonstrator is a system of several micro-satellites (hence the name ‘swarm' in French) for analysis of the electro-magnetic environment of the Earth's surface under development for the French Ministry of Defence's procurement agency DGA. The system, which is scheduled to be operational in 2004, also comprises a ground control segment and a ground station for data processing. It is called a ‘demonstrator' as the mission's objective is to assess the operational capability of such a system, paving the way for the next generation.

The Essaim satellites are based on the Myriade micro-satellite multipurpose product line developed jointly by Astrium and the French Space Agency CNES since 1998. In early 2000, the French Ministry of Defence (DGA) awarded Astrium the contract for the development, manufacturing of this turnkey system of micro-satellites and associated ground segment. Under the contract, Astrium is also responsible for launch services, personnel training and system operations during the three-year life duration of the programme.

Nation: France
Type / Application: SIGINT
Operator: DGA
Contractors: Astrium
Equipment:
Configuration: Myriade
Propulsion:
Power: Deployable solar array, batteries
Lifetime: 3 years
Mass: 120 kg
Orbit: 654 km 665 km, 98.08
Satellite COSPAR Date LS Launch Vehicle Remarks
Essaim 1 (Essaim W23) 2004-049C 18.12.2004 Ko ELA-3 Ariane-5G+ with Helios 2A, Essaim 2, 3, 4, PARASOL, Nanosat 01
Essaim 2 (Essaim W11) 2004-049D 18.12.2004 Ko ELA-3 Ariane-5G+ with Helios 2A, Essaim 1, 3, 4, PARASOL, Nanosat 01
Essaim 3 (Essaim E24) 2004-049E 18.12.2004 Ko ELA-3 Ariane-5G+ with Helios 2A, Essaim 1, 2, 4, PARASOL, Nanosat 01
Essaim 4 (Essaim E12) 2004-049F 18.12.2004 Ko ELA-3 Ariane-5G+ with Helios 2A, Essaim 1, 2, 3, PARASOL, Nanosat 01

Launch Sites:

  • Ko =   Centre Spatial Guyanais (CSG), Kourou, French Guiana, France   France

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