On the different types of equilibria of satellite subject to gravitational and aerodynamic torques in a cirqular orbit

In this paper the different types of equilibria of a satellite moving along a circular orbit under influence of gravitational and aerodynamic torques are investigated. The main attention is paid to study the conditions of existence of satellite's equilibria for special cases, when one of the principal axes of inertia of the satellite coincides with the normal to the orbital plane, with radius vector or tangent to the orbit and conditions of their stability.