SCATHA Restrospective: Satellite Frame Charging and Discharging in the Near- Geosynchronous Envirnonment

Details SCATHA Restrospective: Satellite Frame Charging and Discharging in the Near- Geosynchronous Envirnonment SCATHA Restrospective: Satellite Frame Charging and Discharging in the Near- Geosynchronous Envirnonment

Nov 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998sct..conf..237g&link_type=abstract

Proceedings of the 6th Spacecraft Charging Conference. November 2-6, 1998. AFRL Science Center, Hanscom AFB, MA, USA., p.237-242

Physics

Scientific paper

The major results obtained from the SCATHA satellite on frame charging are: a) Verification of satellite to plasma potential measurements in sunlight by means of an electric field experiment on a 50m boom; b) Identification of the electron environment that drives charging; c) Clarification of the magnetospheric dynamics that produce the charging environment; d) Determination of the difference between sunlight and eclipse charging and its implications for achieving current balance to the spacecraft; e) Demonstration that emitted electron beams can charge and discharge the host satellite, but may return, highly focused, to the vehicle.

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