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Known as CAS 1 (Cooperative Applications Satellite) at NASA


Designation 05435 / 71071A
Launch date 16 Aug 1971
Country of origin France
Mission Scientific: high atmosphere study
Perigee/Apogee 651/835 km
Inclination 50.2°
Period 99.7 min
Launch vehicle Scout #75
Mass at launch 80 kg

Meteorological experimental satellite aimed to study wind in the southern hemisphere. Eole destroyed 89 out of 479 balloons it interrogated because of a human error. When all balloons had disappeared it was used to study oceans currents, iceberg movements, etc.

End of life

Out of service July 1974

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