An Evaluation of Electric and Hydrazine Propulsion Systems for Orbit Maintenance.
NAVY SPACE SYSTEMS ACTIVITY LOS ANGELES CALIF
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The report presents an evaluation of electric propulsion systems capable of providing thrust to counteract drag action on a certain satellite in a low earth orbit. The orbit maintenance system is required to produce an average thrust of 1.6 fixed mass pounds over a mission duration of up to 2 years. Five candidate systems were studied, they include a cesium bombardment ionization thruster, a mercury bombardment ionization thruster, a colloid thruster, a hydrazine resistojet, and, as a standard of comparison, a monopropellant hydrazine thruster not electric. These propulsion devices were evaluated for two spacecraft configurations, one with a solar cellbattery power system, and the other with a reactorthermoelectric power system. The preferred system for either spacecraft configuration is the monopropellant hydrazine system because of its low cost and because such a system is already included on the spacecraft for orbit insertion. Author
- Electric and Ion Propulsion
- Spacecraft Trajectories and Reentry