A METHOD FOR CALCULATION OF NON-STATIONARY TEMPERATURE OF SPACE OBJECT ON A CIRCULAR ORBIT
Saint Petersburg National Research University of Information Technologies, Mechanics and Optics; postgraduate
Y. V. Lapovok
Military Space Academy n.a. A.F. Mozhaisky, Saint Petersburg, Russia; scientific researcher
S. I. Hankov
Military Space Academy n.a. A.F. Mozhaisky, Saint Petersburg, Russia; chief staff scientist
Abstract. A formula for energy balance of spherical space object with uniform temperature is derived with the account for the orbit altitude and slope. The proposed approach incorporates evaluation of integral coefficients of the object exposure to the Earth infrared radiation and solar radiation reflected by the Earth. A mathematical model for calculation of non-stationary temperatures of the object in transition between shadowed to sunilluminated orbit segments is presented.
Keywords: space object, irradiation coefficient, thermal condition, radiative heat transfer