Now showing items 1-7 of 7

  • A motivating exploration on lunar craters and low-energy dynamics in the Earth–Moon system 

    Alessi, Elisa Maria; Gómez, Gerard; Masdemont Soler, Josep (2010-06)
    Article
    Restricted access - publisher's policy
    It is known that most of the craters on the surface of the Moon were created by the collision of minor bodies of the Solar System. Main Belt Asteroids, which can approach the terrestrial planets as a consequence of ...
  • Earth resonant gravity assists for asteroid retrieval missions 

    Sánchez Cuartielles, Joan Pau; Alessi, Elisa Maria; García-Yarnoz, Daniel; McInnes, Colin (2013)
    Conference report
    Restricted access - publisher's policy
    Asteroids and comets are of strategic importance for science in an effort to uncover the formation, evolution and composition of the Solar System. Near-Earth objects (NEOs) are of particular interest because of their ...
  • Further advances on low-energy lunar impact dynamics 

    Alessi, Elisa Maria; Gómez, Gerard; Masdemont Soler, Josep (2010-02)
    Article
    Restricted access - publisher's policy
    We extend the analysis, started in a previous work [1], concerning the formation of lunar impact craters due to low-energy trajectories. First, we adopt the Circular Restricted Three- Body Problem and consider different ...
  • Leaving the Moon by means of invariant manifolds of libration point orbits 

    Masdemont Soler, Josep; Alessi, Elisa Maria; Gómez, Gerard (Elsevier, 2009)
    Article
    Restricted access - publisher's policy
    The aim of this work is to look for rescue trajectories that leave the surface of the Moon, belonging to the hyperbolic manifolds associated with the central manifold of the Lagrangian points L1 and L2 of the Earth–Moon ...
  • Low-energy impact dynamics in the Earth – Moon system 

    Masdemont Soler, Josep; Gómez Muntané, Gerard; Alessi, Elisa Maria (2010)
    Conference report
    Open Access
    Most of the craters on the surface of the Moon were created by the collision of minor bodies of the Solar System, in particular asteroids coming from the Main Belt as a consequence of different types of resonance. Our ...
  • Transfer orbits in the Earth-Moon system and tefinement to JPL ephemerides 

    Masdemont Soler, Josep; Gómez Muntané, Gerard; Alessi, Elisa Maria (2009)
    Conference report
    Open Access
    We describe how to determine transfers between libration point orbits and either the surface of the Moon or a Low Earth Orbit within the Circular Restricted Three – Body Problem (CR3BP) assumptions. Moreover, we explain ...
  • Two-manoeuvers transfers between LEOs and Lissajous orbits in the Earth-Moon system 

    Masdemont Soler, Josep; Gómez, Gerard; Alessi, Elisa Maria (2010)
    Article
    Restricted access - publisher's policy
    The purpose of this work is to compute transfer trajectories from a given Low Earth Orbit (LEO) to a nominal Lissajous quasi-periodic orbit either around the point L1 or the point L2 in the Earth–Moon system. This is ...