AUTONOMOUS COLLOCATION METHOD AT NEAR-STATIONARY ORBIT Russian patent published in 2020 - IPC B64G1/10 B64G1/24 

FIELD: astronautics.

SUBSTANCE: invention relates to control of spacecraft (SC) motion near stationary points in stationary orbit. SC with self-collocation (SCSC) is continuously held in a given hold-in range (HR) in longitude. Inside this HR there are adjacent SCs, for which, according to trajectory measurements, a real working HR (WHR) is determined. If WHR exceeds preset HR, HR is corrected for SCSC and presented in phase plane [Δϕ; ΔL] as nominal flight-ellipse of flight (TEF) SCSC with ratio of latitude (Δϕ) and longitude (ΔL) of axles 4:1. This TEF covers the WHR. Correcting SCSC orbit in accordance with TEF. Retention and autonomous collocation of SCSC are carried out by combined corrections of period, vectors of inclination and eccentricity. Long-range SC control strategies (outside the WHR) are determined. At risk of SC approaching, evasion corrections are performed with subsequent return of SCSC flight route to TEF and TEF setting to optimum position.

EFFECT: technical result consists in provision of independent collocation of three and more SC, located in narrow orbital area near SCSC.

1 cl, 1 dwg