Essaim 2

France / Int

Spacecraft nº:

France spacecraft nº: 52

Launch data:

Designation	28495 / 04049D
Launch date	18 Dec 2004 - 16:26 UT
Launch site	Ko, ELA-3
Launch vehicle	Ariane-5G+
Mission	Military: ELINT Demonstration
Sun-Synchronous LEO Earth orbit:
Perigee / Apogee	661 x 678 km
Eccentricity	1,21E-03
Inclination	98.1°
Period	min

Last flight of Ariane-5G

Spacecraft data:

Prime contractor	EADS Astrium
Platform
Operator	Centre National d'Etudes Spatiales (CNES)/Délégation Générale de l'Armement (DGA)
Mass at launch	120 kg
Dry Mass	kg
Basic shape
Dimension
Solar array
Stabilization
DC power
Design lifetime	3 yrs

Decay:

Out of service:	Dec 2011
Cause:

Mission details:

Demonstration satellites for ELINT; map the "electro-magnetic environment of the Earth's surface"; system of four satellites.

Ref.: #3(SD), #14, #226 - update: 11.02.12