Computer Science – Performance
Scientific paper
Jul 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981stin...8219121m&link_type=abstract
Unknown
Computer Science
Performance
Scatha Satellite, Solar Radiation, Spacecraft Charging, Electric Charge, Satellite Surfaces, Spacecraft Performance
Scientific paper
A survey of data from the first year of the P78-2 SCATHA satellite operations showed that a highest level spacecraft frame charging (phif) both in sunlight (-340 V) and in eclipse -8 kV) occurred on 24 April 1979. Analysis of the data indicates that if the sunlight charging environment had been present during eclipse, the vehicle would have charged in excess of 15 kV which is above any known charging level observed to date for the SCATHA satellite. Therefore, the environment at the peak of the sunlight charging at approx. 0650 UT 24 April 1979 was chosen for this worst case study. The environment at this time is characterized by an injection of high energy (30-335 keV) electron fluxes whose combined current correlates with phif with a correlation coefficient of 0.95. The fluxes were highly anisotropic, maximizing perpendicular to the magnetic field. The low energy ( 4 keV) electron population had a density 1/cc and the low energy ions were near background.
Garrett Henry Berry
Gussenhoven Susan M.
Mullen E. G.
No associations
LandOfFree
A worst case spacecraft environment as observed by SCATHA on 24 April 1979 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A worst case spacecraft environment as observed by SCATHA on 24 April 1979, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A worst case spacecraft environment as observed by SCATHA on 24 April 1979 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1690985