The SCATHA (P78-2) satellite payload includes a Charging Electrical Effects Analyzer to measure the characteristics of electrical discharges that occur on the vehicle due to spacecraft charging. During 233 days of operation, 19 pulses on 10 different days have been related to electrical discharges. Five of these discharges took place when the pulse analyzer was in a mode with sufficient time resolution to resolve the frequency components in the waveform. The dominant frequencies ranged from 5 to 32 MHz with amplitudes from 0.4 to 0.9 V into a 50-ohm load. (Author)
Aspect Dependence and Frequency Spectrum of Electrical Discharges on the P78-2(SCATHA) Satellite
1982
30 pages
Report
Keine Angabe
Englisch
Unmanned Spacecraft , Spacecraft , Electric discharges , Pulse analyzers , Frequency , Spectra , Aspect angle , High altitude , Electric charge , Amplitude , Resolution , Wave analyzers , Waveforms , High frequency , Very high frequency , Sun , Orientation(Direction) , Spacecraft charging , SCATHA(Spacecraft Charging at High Altitude) , P78-2 satellite , CEEA(Charging Electrical Effects Analyzers)