UDK 629.785
DEVELOPMENT OF THE PROPULSION CONSTRUCTION AND THE TRAJECTORY FOR THE SPACECRAFTS OF THE “LAPLACE-L” MISSION FOR THE STUDY OF THE JUPITER PLANETARY SYSTEM
I. V. Platov, A. V. Simonov
Lavochkin Association 24, Leningradskaya Str., Khimki, Moscow region, 141400, Russian Federation
The article is devoted to the peculiarities of the development of the space complex for the study of the Jupiter planetary system with contact and remote methods at the proposal stage. Russian ambitious project “Laplace-L” involves the development and launch of a single launch window two spacecrafts, designed for remote and contact research of the Ganymede, a natural satellite of Jupiter. At the heart of the first spacecraft of the mission there is an orbiter. One of its tasks is mapping the surface of Ganymede from the orbit of an artificial satellite and the collection of data to select the landing site of the second SC, which includes lander. The article describes the design appearance of the devices, their propulsion systems and the flight scheme at all stages – from the launch from the Earth to landing on Ganymede. The article describes the implementation for the mission of proposed main propulsion engines (MPEs), as well as propulsion engines of the orbiter and lander, adducted the descriptions of their designs. In accordance with the characteristics their flight scheme has been designed to allow the SC to deliver during the active life in orbit with the required parameters around a natural satellite of Jupiter and in the subsequent implementation of a soft landing on the surface of Ganymede. The main characteristic of the trajectories is adducted. The project must be developed on the basis of the launch of the spacecraft from the Baikonur Cosmodrome using a launch vehicle “Angara-A5” and the “KVTK” upper stage. When developing the scheme of the flight is assumed that after 8 years of apparatus should enter orbit around Ganymede. The flight trajectory to Jupiter formed by gravity assists maneuvers near the Earth and Venus. The proposed construction variants of spacecraft allow realizing the designed trajectory, while providing a full-time job for science equipment and carry out a set of experiments for a specified period of active existence of “Laplace-L” spacecrafts.
Keywords: spacecraft, propulsion system, trajectory, flight scheme, interplanetary transfer, Jupiter, Ganymede.
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Platov Ilya Vyacheslavovich – Cand. Sc., engineer-designer, Lavochkin Association. E-mail: aia@laspace.ru.

Simonov Alexander Vladimorovich – Cand. Sc., deputy head of department, Lavochkin Association. E-mail:

alex.simonov@laspace.ru.