description SAMPEX Overview
SAMPEX (Solar Anomalous and Magnetospheric Particle Explorer) was a NASA satellite launched in July 1992 as the first mission in the Small Explorer program. It operated in a low Earth orbit to study the energy spectra and composition of solar energetic particles, galactic cosmic rays, and magnetospheric electrons. The data gathered by SAMPEX significantly advanced the understanding of how these high-energy particles are accelerated and transported through space.
insights Ranking position
SAMPEX ranks #103 of 187 in the Satellite ranking, behind NOAA-18, ahead of NOAA-15.
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What particles did the SAMPEX satellite measure?
SAMPEX measured energetic electrons and the elemental and isotopic composition of solar, anomalous, magnetospheric, and galactic cosmic-ray particles. Its instruments included the Heavy Ion Large Telescope and the Proton/Electron Telescope.
Why was SAMPEX important to NASA's Small Explorer program?
SAMPEX was the first mission in NASA's Small Explorer program, which was created to conduct focused space-science investigations with relatively small spacecraft. It launched from Vandenberg Air Force Base on July 3, 1992.
What kind of orbit did SAMPEX use?
SAMPEX operated in a high-inclination low Earth orbit, initially ranging roughly from 520 to 670 kilometers above Earth. That path repeatedly carried it through regions where it could sample trapped radiation and energetic particles.
How long did SAMPEX remain in space?
SAMPEX was designed for a primary mission of about three years but survived for roughly two decades. The spacecraft reentered Earth's atmosphere in November 2012.
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