AstronautAtlas
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Program archive
International Solar-Terrestrial Physics is explored here through 9 archived missions, from Dynamics Explorer 1 through Advanced Composition Explorer, with the program’s spacecraft, people, milestones, and source-backed history connected along the way.
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Choose a path through the International Solar-Terrestrial Physics archive.
Every archived International Solar-Terrestrial Physics mission, in launch order.
WindActive missionUncrewed heliophysics and geospace observatoryComplex near-Earth and lunar-assisted trajectories; Sun-Earth L1 since 2004Wind launched on November 1, 1994 for the Global Geospace Science program.
Advanced Composition ExplorerActive missionUncrewed heliophysics and geospace observatoryLissajous orbit around Sun-Earth L1Advanced Composition Explorer launched on August 25, 1997 for the Explorer Program program.
Solar and Heliospheric ObservatoryActiveUncrewed solar and heliophysics observatoryLissajous orbit around the Sun-Earth L1 pointSolar and Heliospheric Observatory launched on December 2, 1995 toward lissajous orbit around the sun-earth l1 point.
AMPTE Ion Release ModuleSuccessful active-plasma experiment missionUncrewed heliophysics and geospace observatoryHighly elliptical Earth orbit reaching the solar windAMPTE Ion Release Module launched on August 16, 1984 for the AMPTE program.
AMPTE Charge Composition ExplorerSuccessful; mission ended in July 1989Uncrewed heliophysics and geospace observatoryNear-equatorial elliptical magnetospheric orbitAMPTE Charge Composition Explorer launched on August 16, 1984 for the AMPTE program.
AMPTE United Kingdom SubsatelliteSuccessful international companion missionUncrewed heliophysics and geospace observatoryFormation orbit near AMPTE IRMAMPTE United Kingdom Subsatellite launched on August 16, 1984 for the AMPTE program.
Dynamics Explorer 1Successful; science operations ended in March 1991Uncrewed heliophysics and geospace observatoryHigh-altitude elliptical polar orbitDynamics Explorer 1 launched on August 3, 1981 for the Dynamics Explorer program.
Dynamics Explorer 2Successful; reentered in February 1983Uncrewed heliophysics and geospace observatoryLow-altitude polar orbit coplanar with DE-1Dynamics Explorer 2 launched on August 3, 1981 for the Dynamics Explorer program.
PolarSuccessful; operations ended in April 2008Uncrewed heliophysics and geospace observatoryHighly elliptical polar Earth orbitPolar launched on February 24, 1996 for the Global Geospace Science program.