Accession Number:

AD0729294

Title:

An Evaluation of Electric and Hydrazine Propulsion Systems for Orbit Maintenance.

Descriptive Note:

Technical rept.,

Corporate Author:

NAVY SPACE SYSTEMS ACTIVITY LOS ANGELES CALIF

Personal Author(s):

Report Date:

1971-05-01

Pagination or Media Count:

141.0

Abstract:

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

Subject Categories:

  • Electric and Ion Propulsion
  • Spacecraft Trajectories and Reentry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE