Abstract. The prospects for using a distributed onboard computer complex as a part of an orbital tether system are considered. The possibilities of using small spacecraft, which are elements of the orbital tether system, are analyzed. The composition of the onboard equipment of the basic and small spacecraft is determined. It is noted that a distributed onboard computer complex must be included in its composition. The structure of onboard computer complex is discussed. As an example of possible mathematical models describing the dynamics of orbital tether system elements, a simplified analytical model of the movement of a small spacecraft in the direction perpendicular to the base orbital plane is given. The use of a distributed onboard computer complex as part of the orbital tether system is shown to expand its functionality in the near-Earth space, improve the reliability and stability of the base spacecraft and associated mini- and microsatellites operation.

Keywords: onboard computer complex, computing system, processor, RAM, small space vehicle, orbital tether system, onboard control complex, analytical calculation method

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