100 kg, size : 0.6x0.6x0.8 m3, payload mass 40 kg, available power for instruments 40 W, TM = 200 kb/s). In principle, the spacecraft is not spinned. However the possibility for spinning it can be considered. The altitude range which should be explored is 800 km - 300 km, and, possibly lower at the very end of the mission. The mission duration is 2 years. Its preparation is 3 years duration after its acceptation which is wished for 2002.
A.m-2 current densities at 100 Hz, in the frequency range from 1 Hz to 1 kHz. The implementation of this instrument will significantly enhance the capabilities for the currents measurement, allowing to free from any hypothesis on the shape of the current
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