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More slides from day 41

More slides from day 41. From the ursi talk. Low Energy Ion DF. Electrostatic analyzer (differential measurement) Temperature and density are consistent with the LIMS mass spectrometer (RPA) results. (next slide). Low Energy Ion Flux.

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More slides from day 41

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  1. More slides from day 41 From the ursi talk

  2. Low Energy Ion DF • Electrostatic analyzer (differential measurement) • Temperature and density are consistent with the LIMS mass spectrometer (RPA) results. (next slide)

  3. Low Energy Ion Flux • Retarding Potential Analyzer (integral measurement) with fits for temperature. • Heads 2&3 view along the spin axis, which is roughly aligned with =90° • Head 1 views perpendicular to the spin axis, and samples both field-aligned and equatorially trapped ions.

  4. Low Energy Electron DF • Two curves on split energy scales (top/bottom) with fits to estimate temperature. • The electrons distributions are not really Maxwellian, but there is a fairly dense, cold electron background, consistent with being in the plasmasphere – the spacecraft potential is probably about +4V, the ion and electron densities about 10 cm-3.

  5. Low Energy Electron Pitch Angle Distribution Equatorially Trapped Electrons The anisotropy is not as great as with the ions Return to URSI talk

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