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Apollo 14 ALSEP Electron and Proton Spectra, offline at NSSDC

Published by NASA Space Physics Data Facility (SPDF) Data Services | National Aeronautics and Space Administration | Metadata Last Checked: April 13, 2026 | Last Modified: 2026-04-06
The data are 19.2-s count rates of electrons and protons at several energy steps between 40 eV and 20 keV. Two electrostatic analyzers, each feeding 6 detectors, are oriented vertical from the lunar surface and 60 degrees from vertical, towards lunar west.

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