Satellite solar array attenuation factor is mainly composed of particle radiation attenuation factor,ultraviolet radiation attenuation factor,but because of the space environment and its complex,the solar battery plate subjected to environmental effects are integrated,with only the factor to describe the solar attenuation law is not enough.This paper uses some of sun synchronous orbit satellite on orbit 6 years of solar array output power data by satellite in orbit the solar incident angle,the Sun-Earth distance factor,solar array temperature calculation,the final calculation of the solar array in the satellite life of the attenuation factor,including particle decay factor,ultraviolet radiation attenuation factor and other the attenuation factor.On the attenuation coefficient of exponential function fitting,the difference between the sum of square error is 0.000127,the exponential function can describe the solar array attenuation factor decline.Other sun synchronous orbit satellite by using the exponential function of the type,the satellite solar incident angle,the Sun-Earth distance factor,solar array temperature parameters into the solar array output power can be obtained by the formula,on-orbit satellite solar array output power prediction value.Pudding.
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