Semcap Analysis of Arc Discharge Effects on Spacecraft

Abstract

An analytical approach has been developed to determine the effects of the arc discharge on the space­ craft and to predict the spacecraft electromagnetic interference safety margins. The analysis tool is the Specification and Electromagnetic Compatibility Anal­ ysis Program (SEMCAP) computer code, originally devel­ oped by TRW for analyzing intrasystem and intersystem electromagnetic compatibility. The present paper demonstrates the use of SEMCAP to analyze spacecraft electromagnetic compatibility with respect to arc dis­ charges and also shows how the arc discharges can be modeled as SEMCAP sources.