Accession Number:

AD0770591

Title:

Recommendations Concerning Spacecraft Charging in the Magnetosphere,

Descriptive Note:

Corporate Author:

AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS

Personal Author(s):

Report Date:

1973-08-31

Pagination or Media Count:

39.0

Abstract:

At synchronous-orbit altitudes in the earths magnetosphere, dark insulated surfaces of a spacecraft normally change to negative potentials in excess of several volts. During magnetospheric substorms, potentials may exceed many kilovolts. Anomalies in the performance of spacecraft systems have been indirectly linked to charging, allegedly through 1 electromagnetic interference from discharges, 2 surface damage by discharges, or 3 contamination enhancement by electrostatic deposition. This report examines the evidence that charging causes these effects and discusses 1 measures that can be taken to eliminate charging and its unwanted effects Electrostatic cleanliness requirements, 2 instrumentation that can detect the occurrence of charging, and 3 research and instrumentation needed to parameterize the problem in order to develop optimal specifications for preventing anomalies in future systems. Author

Subject Categories:

  • Unmanned Spacecraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE