Now showing items 2-9 of 9

  • Capturing small asteroids into a Sun-Earth Lagrangian point 

    Lladó, Neus; Ren, Yuan; Masdemont Soler, Josep; Gómez Muntané, Gerard (2014-02-01)
    Article
    Restricted access - publisher's policy
    In this paper we address the feasibility of capturing small Near-Earth Asteroids (NEAs) into the vicinity of the Sun-Earth L-2 libration point using a continuous-thrust propulsion system assumed to be attached to the ...
  • Capturing small asteroids into Sun-Earth Lagrangian points for mining purposes 

    Lladó, Neus; Ren, Yuan; Masdemont Soler, Josep; Gomez Muntaner, Gerard (2012)
    Conference report
    Open Access
    The aim of this paper is to study the capture of small Near Earth Objects (NEOs) into the Sun-Earth L2 using low-thrust propulsion for mining or science purposes. As it is well known, the vicinity of these points is inside ...
  • Computation of analytical solutions of the relative motion about a Keplerian elliptic orbit 

    Ren, Yuan; Masdemont Soler, Josep; Marcote, Manuel; Gómez, Gerard (2012-01)
    Article
    Restricted access - publisher's policy
    The purpose of this paper is to obtain a third-order expression, for the in-plane and out-of-plane amplitudes, of the solutions of the elliptic Hill–Clohessy–Wiltshire non-linear equations. The resulting third-order solution ...
  • On the mechanisms of natural transport in the solar system 

    Masdemont Soler, Josep; Ren, Yuan; Gómez Muntané, Gerard; Fantino, Elena (2010)
    Conference report
    Open Access
    Some minor bodies in the solar system (i.e., comets, asteroids and planetary ejecta) are capable of performing transfers from their original location to very distant places, provided they possess sufficiently large ...
  • On the relationship between the weak stability boundary region of the earth and the low-energy transfers to the moon 

    Masdemont Soler, Josep; Ren, Yuan; Gómez Muntané, Gerard; Fantino, Elena (2009)
    Conference report
    Open Access
    The term Weak Stability Boundary (WSB) is related to a region of stable motion around the second primary of a circular restricted three-body problem (CR3BP). Previous work on this subject has shown that, at a given energy ...
  • On the relationship between the weak stability boundary region of the earth and the low-energy transfers to the moon 

    Masdemont Soler, Josep; Ren, Yuan; Fantino, Elena; Gómez Muntané, Gerard (2009)
    Conference report
    Open Access
    The term Weak Stability Boundary (WSB) is related to a region of stable motion around the second primary of a circular restricted three-body problem (CR3BP). Previous work on this subject has shown that, at a given energy ...
  • Optimal low-thrust transfers between libration point orbits 

    Ren, Yuan; Pergola, Pierpaolo; Fantino, Elena; Thiere, B. (2012-01)
    Article
    Restricted access - publisher's policy
    Over the past three decades, ballistic and impulsive trajectories between libration point orbits (LPOs) in the Sun–Earth–Moon system have been investigated to a large extent. It is known that coupling invariant manifolds ...
  • Two mechanisms of natural transport in the Solar System 

    Ren, Yuan; Gomez Muntaner, Gerard; Masdemont Soler, Josep; Fantino, Elena (2011)
    Article
    Restricted access - publisher's policy
    In this paper, two natural transport mechanisms in Solar System are considered. The first is a short-time transport, and is based on the existence of ‘‘pseudo-heteroclinic’’ connections between libration point orbits of ...