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Equator-S


Equator-S
A German satellite in a near-equatorial orbit that studies Earth's equatorial magnetosphere out to distances of 67,000 km. It was designed and built by the Max-Planck-Institut fur Extraterrestrische Physik.

Equator-S is an element of the International Solar-Terrestrial Physics (ISTP) program. Its goals are to provide high-resolution plasma, magnetic, and electric field measurements in several regions not adequately covered by the existing ISTP missions, namely the low-latitude dayside magnetopause and its boundary layer, the equatorial ring current region, and the near-earth equatorial plasma sheet.


launch date Dec. 26, 1997
launch vehicle Ariane 44
launch site Kourou
orbit 496 × 67,232 km × 40.0°
mass 250 kg


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