SPACECRAFT CONTROL METHOD DURING FLIGHT TO MOON Russian patent published in 2020 - IPC B64G1/12 B64G1/26 

FIELD: astronautics.

SUBSTANCE: invention relates to flight of manned spaceship (SC) from near-earth orbit to polar and near-polar moonlit orbits. Method includes bringing the spacecraft on a flight path to the Moon with the passage of the Moon at a given distance and with an inclination equal to or close to 90°. In pericynthion there should be applied a brake pulse of V_BR to transfer SC to a given polar orbit. In emergency situation of impulse failure of V_BR performs braking pulse V₁ << V_BR for transition of SC to highly elliptical circumlunar orbit. Value V₁ is determined proceeding from provision of optimum conditions of flight V₂ for spacecraft flight from said highly elliptical orbit to Earth.

EFFECT: technical result is the possibility of returning the spacecraft from the Moon to the Earth at failure of the predetermined braking pulse in the Moon, in case of flight of the spacecraft to the near-moon orbit with a large inclination.

1 cl, 5 dwg