Electron temperatures in the wake of an ionospheric satellite

Details Electron temperatures in the wake of an ionospheric satellite Electron temperatures in the wake of an ionospheric satellite

Mar 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975jgr....80..993t&link_type=abstract

Journal of Geophysical Research, vol. 80, Mar. 1, 1975, p. 993-997.

Computer Science

Sound

2

Electron Energy, Ionospheric Sounding, Near Wakes, Satellite Observation, Electrostatic Probes, Hypersonic Wakes, Plasma Interactions, Polar Orbits, Spin Stabilization

Scientific paper

We present measurements of electron temperature (Te) made by a retarding potential analyzer and a Langmuir probe (both flush-mounted on the spin-stabilized satellite Explorer 31) to investigate the variation of Te around the satellite. Most of the time there is a Te variation, which repeats for given ionospheric conditions. The variation is strongly controlled by the angle between the velocity vector and the probe normal, Te usually being enhanced in the near wake of the satellite. Magnetic field control of Te, if it is present, is hidden by the stronger velocity vector control. Our results indicate that the magnitude of the Te enhancement in the wake does not depend on the average ion mass (M), although the electron density depletion in the wake is strongly correlated with M.

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