Quasihalo orbits associated with libration points

Quasihalo orbits are Lissajous trajectories librating about the well known halo orbits. The main feature of these orbits is that they keep an exclusio n zone in the same way that halo orbits do. As a result, the knowledge of t his type of orbit gives more flexibility to the mission analysis design abo ut collinear libration points of any pair of primaries in the solar system. This paper is devoted to the semianalytical computation of quasihalo orbit s in the circular restricted three-body problem by means of an ad hoc Linds tedt-Poincare method. The study of the practical convergence of the procedu re and the extension of the orbits to suitable locations in the solar syste m using Jet Propulsion Laboratory (JPL) ephemerides is also discussed.