Modeling the Movement of Vehicles on the Binary Asteroid Systems | Chapter 14 | New Trends in Physical Science Research Vol. 6

 The Sphere-Restricted Full 2-Body Problem (SRF2BP), which is a celestial body system made up of a spherical celestial body and an arbitrarily shaped celestial body, is the subject of this paper's investigation into the surface dynamics of particles on the primary. While the secondary is seen as a sphere, the primary is thought of as an irregularly shaped entity. The SRF2BP's motion equation has been published. Investigated are the locations of the particle surface equilibrium, the linearized equations of the particle in relation to the surface equilibrium, and the characteristic equation of the surface equilibrium. The study of the surface mechanical environment of the unique binary asteroid pair 243 Ida and Dactyl took into account both the point mass model of Dactyl and the polyhedron model of Ida, which has 2522 vertices and 5040 faces. We outline the mechanisms via which Ida's natural trajectories and surface characteristics have an impact. Because certain trajectories are unstable, a minor disruption can result in a wide range of paths. This can aid in the development of improved space mission landers and vehicles' trajectories. Dactyl has a very minimal impact on Ida's particle velocity. However, the impact of Dactyl cannot be disregarded for some particles. To determine the characteristics of particle paths on various beginning places with static initial states, Monte Carlo simulations are performed. To observe the characteristics of particle trajectories with various beginning places and initial velocities, Monte Carlo simulations are also run. On the surface of Ida, we mapped the slope angle and the gravitational acceleration while taking the Coriolis effect into account. Plain, basin, crater, and valley areas make ideal landing targets for landers, whereas saddles, gaps, hilltops, convex surfaces, and humps make unsuitable landing targets. Concave surfaces, impact craters, and valleys with low slope angles can all be employed for vehicle landing targets and starting positions. Gaps, impact craters, and valleys with steep slopes are not appropriate for vehicle travel since it may be difficult to exit once a vehicle enters. The engineering design of the space mission to binary systems can use this document as a guide and source of suggestions.

Author(s) Details:

Yu Jiang,
State Key Laboratory of Astronautic Dynamics, Xi'an Satellite Control Center, 462 Xianning Road, Xi'an, Shaanxi, China and School of Aerospace Engineering, Tsinghua University, Zhongguancun North Street, Haidian District, Beijing, China.

Hengnian Li,
State Key Laboratory of Astronautic Dynamics, Xi'an Satellite Control Center, 462 Xianning Road, Xi'an, Shaanxi, China.

Please see the link here: https://stm.bookpi.org/NTPSR-V6/article/view/7223