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CHAllenging Mini-satellite Payload for Geophysical Research and Application


Designation 26405 / 00039B
Launch date 15 Jul 2000
Country of origin Germany
Mission Geodesy
Perigee/Apogee 416/476 km
Inclination 87.3°
Period 93.5 min
Launch vehicle Cosmos C
Launch site Plesetsk

6 instruments including the French STAR (Space Triaxial Accelerometer for Research Applications) accelerometer to carry out geophysical, geodetic and oceanographic experiments and study the upper atmosphere.

The satellite seems operating normally after apparently being hit by one of the two payload shrouds during the launch.

End of life

Out of service Sep 2010
Cause Earth reentry
Decay 19 Sep 2010

External resources


sat-index articles

Technical data


Prime contractor GFZ Postdam
Platform Astrium Flexbus
Mass at launch 300 kg
Payload mass 25 kg
Solar array  
Stabilization 3-axis
DC power  
Design lifetime  

STAR has been developed by ONERA under the supervision of the Centre National d'Études Spatiales (CNES). It will accurately measure the surface acceleration the satellite will undergo in orbit. These measurements, combined to the measurements monitoring the satellite path by GPS and Laser, will considerably improve the knowledge of the gravitational field.

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