Survey of Spaceborne Missions and Sensors

A NASA/GSFC solar-terrestrial mission in the explorer program with the objectives to determine: the elemental and isotopic composition of matter, the origin of the elements, the formation of the solar corona and acceleration of the solar wind. S/C builder: JHU/APL. The S/C structure has two octagonal decks, 1.6 m across and 1 m high; the S/C is three-axis stabilized with the spin axis Earth/sun pointing. The mission is planned for a launch in August 1997 with a Delta II launch vehicle from Cape Canaveral, Florida. S/C mass = 785 kg (includes 189 kg of fuel), power=430 W, nominal life of the mission is 5 years.2)