page_title: Charged Particle Lunar Environment Experiment
hierarchical_section_title: Charged Particle Lunar Environment Experiment
caption_attribution_description: Apollo 14 Hasselblad image from film magazine 67/JJ - EVA-1
context_page_description: The Charged Particle Lunar Environment Experiment, placed on the lunar surface by the Apollo 14 mission as part of the Apollo Lunar Surface Experiments Package, was designed to measure the energy spectra of low-energy charged particles striking the lunar surface. It measured the fluxes of electrons and ions with energies from 40 eV to 20 keV. The primary purpose of the experiment was to examine plasma particles originating from the Sun and the low-energy particle flux in the Earth's magnetic tail.
context_section_description: The Charged Particle Lunar Environment Experiment (CPLEE), placed on the lunar surface by the Apollo 14 mission as part of the Apollo Lunar Surface Experiments Package (ALSEP), was designed to measure the energy spectra of low-energy charged particles striking the lunar surface. It measured the fluxes of electrons and ions with energies from 40 eV to 20 keV. The primary purpose of the experiment was to examine plasma particles originating from the Sun and the low-energy particle flux in the Earth's magnetic tail.
caption: The CPLEE with the ALSEP central station in the background
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