›› 2012, Vol. 32 ›› Issue (4): 15-21.doi: 10.3780/j.issn.1000-758X.2012.04.003

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Simplified Calculating Method of the Sun Radiation Flux for On-orbit Satellite

Liu Xin1, Pan Zengfu2   

  1. (1 China Academy of Launch Vehicle Technology, Beijing 100076)(2 China Academy of Space Technology, Beijing 100094)
  • Received:2011-10-12 Revised:2011-12-08 Online:2012-08-25 Published:2012-08-25

Abstract: A simplified method was put forward to solve the problems of too much orbital parameters and complex space geometry during calculating sun radiation flux for on-orbit satellite. A novel calculation coordinates was built based on studying the space geometrical relationship between the satellite, the earth and the sun. In the coordinates, the space position between the satellite, the earth and the sun was re-ruled and the calculation formula of the sun direct radiation flux was deduced. Using the proposed method to calculate the sun radiation flux, the process is simplified. Compared with conventional methods, only 7 parameters need to be calculated and the parameters are decreased by 2/3.

Key words: Spatial external heat flow calculation, Solar radiation, Simplified calculation, Satellite