Tides in a body librating about a spin–orbit resonance: generalisation of the Darwin–Kaula theory
Sign Up to like & getrecommendations! Published in 2017 at "Celestial Mechanics and Dynamical Astronomy"
DOI: 10.1007/s10569-017-9768-6
Abstract: The Darwin-Kaula theory of bodily tides is intended for celestial bodies rotating without libration. We demonstrate that this theory, in its customary form, is inapplicable to a librating body. Specifically, in the presence of libration… read more here.
Keywords: theory; kaula theory; generalisation; libration ... See more keywords
Station-keeping of libration point orbits by means of projecting to the manifolds
Sign Up to like & getrecommendations! Published in 2019 at "Acta Astronautica"
DOI: 10.1016/j.actaastro.2018.12.002
Abstract: Abstract There are many different types of (quasi)periodic orbits in the vicinity of collinear libration points. These libration point orbits (LPOs) are inherently unstable and must be controlled. This paper studies general station-keeping strategies that… read more here.
Keywords: libration; center manifold; point orbits; station keeping ... See more keywords
Determination of the free lunar libration modes from ephemeris DE430
Sign Up to like & getrecommendations! Published in 2017 at "Research in Astronomy and Astrophysics"
DOI: 10.1088/1674-4527/17/12/127
Abstract: The Moon’s physical librations have been extensively studied, and elaborate researches have been developed for the purpose of deriving accurate modes of free librations. Our motivation comes from the Planetary and Lunar Ephemeris DE430 by… read more here.
Keywords: lunar; determination free; free librations; ephemeris de430 ... See more keywords
A new telescope with three fields of view to measure the orientation parameters of the Moon and terrestrial planets
Sign Up to like & getrecommendations! Published in 2021 at "Research in Astronomy and Astrophysics"
DOI: 10.1088/1674-4527/21/2/40
Abstract: For lots of scientific questions about lunar physics deep inside the Moon, in-situ observation on lunar physical libration is one of the most potential ways. In this paper, we propose a brand new optical telescope… read more here.
Keywords: fields view; terrestrial planets; moon; telescope ... See more keywords
Analysis of Phobos’ dynamical environment considering effects of ephemerides and physical libration
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa1948
Abstract: A dynamical model is developed in the body-fixed frame of Phobos, in which the high-precision gravity field and exact physical libration of Phobos, the gravity of Mars with J2, and the gravity perturbations of the… read more here.
Keywords: analysis phobos; physical libration; model; gravity ... See more keywords
Planar periodic orbits’ construction around libration points with invariant manifold technique
Sign Up to like & getrecommendations! Published in 2019 at "Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering"
DOI: 10.1177/0954410017736544
Abstract: This paper revisits the planar periodic motions around libration points in circular restricted three-body problem based on invariant manifold technique. The invariant manifold technique is applied to construct the nonlinear polynomial relations between ξ-direction and… read more here.
Keywords: manifold technique; periodic orbits; libration; invariant manifold ... See more keywords