CELESTIAL mechanics has traditionally been concerned with orbital motion under the
action of a conservative gravitational potential. In particular, the inverse square gravitational …

Libration point orbits (LPOs) have drawn a lot of interest because of their great significance
in deep space exploration. This paper summarizes the past developments and then …

This paper discusses the linearized relative motion and control of Electric Solar Wind Sails
(E-sails) operating in formation flight around a heliocentric displaced orbit. An E-sail is …

The present paper addresses the existence of J 2 invariant relative orbits with arbitrary
relative magnitude over the infinite time using the Routh reduction and Poincaré techniques …

This paper deals with the problem of determining the requirements for the maintenance of
circular, displaced, non-Keplerian orbits around the Sun by means of a magnetic sail-based …

This paper introduces a new approach to the study of artificial equilibrium points in the
circular restricted three-body problem for propulsion systems with continuous and purely …

Due to the strong nonlinear perturbations near the libration points, the continuous low-thrust
technique has many potential applications in stationkeeping relative motions. The …

The bounded quasi-periodic relative trajectories are investigated in this paper for on-orbit
surveillance, inspection or repair, which requires rapid changes in formation configuration …

This paper investigates new families of displaced, highly non-Keplerian orbits in the two-
body problem and artificial equilibria in the circular restricted three-body problem. The …

A new constellation configuration is proposed to provide near‐constant communications
between any two points in the cislunar space. Four satellites were allocated on some natural …