A model of mean current was developed to estimate the output power attenuation factor of Low Earth Or-bit (LEO)satellites in different seasons and different solar activity years defined by orbit decay,and with no nor-malization to solar incidence,distance and temperature to determine the output power attenuation of solar cell ar-rays,based on analysis of the variation and influence of parameters such as semi-major axis,solar incidence and sun-to-earth distance.In Tracking,Telemetry and Command (TT&C)management,the lowest output power supplied to the whole satellite to work in health always takes place near summer solstice and it is a very important satellite energy reference.With TT&C data,the estimation has shown that when it is near summer solstice,the attenuation factor is about -0.012 and annual power attenuation is about 1.2%.The model has already been used to provide as-sistance to TT&C telemetry diagnosis.
NETL
NSTL
维普
万方数据
