5 papers
3D analytical theory of the perturbed single-synchronous state. Application to the post-impact Didymos-Dimorphos system
Michalis Gaitanas, Christos Efthymiopoulos, Ioannis Gkolias +2
We develop the 3D generalization of the planar analytical theory presented in Gaitanas et. al., 2024, which deals with states slightly perturbed from the exact `single-synchronous…
Bifurcation sequences in the secular 3D planetary 3-Body problem: a geometric approach
Rita Mastroianni, Antonella Marchesiello, Christos Efthymiopoulos +1
We implement the geometric method proposed in ([9], [3], [16]) to analytically predict the sequence of bifurcations leading to a change of stability and/or the appearance of new pe…
Fully analytical propagator for lunar satellite orbits in closed form
Rita Mastroianni, Edoardo Legnaro, Christos Efthymiopoulos
We present a fully analytical propagator for the orbits of lunar artificial satellites in a lunar gravity and third-body model sufficiently precise for a wide range of practical ap…
Analytical theory of the spin-orbit state of a binary asteroid deflected by a kinetic impactor
Michalis Gaitanas, Christos Efthymiopoulos, Ioannis Gkolias +2
We study the perturbed-from-synchronous librational state of a double asteroid, modeled by the Full Two Rigid Body Problem (F2RBP), with primary emphasis on deriving analytical for…
Secular dynamics and the lifetimes of lunar artificial satellites under natural force-driven orbital evolution
Edoardo Legnaro, Christos Efthymiopoulos
In this paper, we study the long-term (time scale of several years) orbital evolution of lunar satellites under the sole action of natural forces. In particular, we focus on secula…