Essaim 1

France / Int

Spacecraft nº:

France spacecraft nº: 51

Launch data:

Designation	28494 / 04049C
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	666 x 674 km
Eccentricity	5,68E-04
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.

Astrophilately covers:

Ariane-5G

Launch cancel Kourou.

Ariane-5G

Headquarter cancel Paris.

Credit covers: J.VdDr.

Ref.: #3(SD), #14, #226, #415 - update: 13.01.20