Investigation of the parameters of a power truss for fixing mirrors in a telescopic complex for an ultra-low-orbit spacecraft

Abstract

The design parameters of a power structure for fixing mirrors in the optical circuit of surveillance equipment intended for installation on an ultra-low-orbit spacecraft are being investigated. The optical scheme contains the main and second mirrors, as well as an additional flat mirror with an inclination of forty-five degrees to the optical axis of the main mirror. This flat mirror reverses the direction of the optical rays reflected from the earth's surface and directs the rays at the main mirror. To reduce the weight of the power structure, taking into account the requirements for dimensional stability and vibration resistance, a power truss with conical and unclosed cylindrical sections is considered. As a result of the research, the mass and size parameters of the power truss were obtained, which can serve as the basis for further development of a promising ultra-low-orbit optical system.