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Caracterisation de l'Environment Radio-electrique par un Instrument Spatial Embarqué


Designation 23606 / 95033B
Launch date 7 Jul 1995
Country of origin France
Mission Military: ELINT
Perigee/Apogee 666/675 km
Inclination 98.2°
Period 98.2 min
Launch vehicle Ariane V75

Operated by CNES and the DGA (Délégation Générale de l'Armement), ministry of defense. Cerise is to catalog terrestrial electromagnetic sources between 500 MHz and 20 GHz in order to find out which are the interesting frequencies. Cost: $17.4 million.

It will be followed by Clementine to catalog sources between 20 MHz and 1 GHz. (should cost $18 million).

On 24th July 1996 the satellite was hit by a fragment of Ariane V16 which launched Spot 1 The relative velocity of the collision was 14.8 km/s. Part of the gravity-gradient boom was detached at 3.1 m of its base (was 6 m long). This is the first natural collision of artifical earth satellites.

External resources

sat-index articles

Technical data


Prime contractor Alcatel Espace & Thomson CSF
Platform UoSAT
Mass at launch 50 kg
Mass in orbit  
Dimension 0.6 m x 0.3 m x 0.3 m
Solar array four fixed, and four deployable solar panels
Stabilization gravity-gradient
DC power  
Design lifetime 2.5 years

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