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Charged particles at LEXI. (a) Proton flux measured by THEMIS at the moon in the solar wind. The flux is from a look direction corresponding to LEXI’s science pointing, 60∘-120∘ from the Earth-sun line. (b) Modeled solar wind protons reaching the LEXI detector after passing through the sweeping magnets and blocking filter. Total incident proton counts is modeled to be less than 0.5 s−1 for nominal solar wind conditions
