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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…
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…
SELENA: Semi-analytical Integrator for Lunar Artificial Satellites
Christos Efthymiopoulos, Kleomenis Tsiganis, Ioannis Gkolias +2
The present report summarizes the main theory and implementation steps associated with SELENA (SEmi-anaLytical intEgrator for a luNar Artificial satellite), i.e. the semi-analytica…