Now showing items 1-14 of 14

    • A note on libration point orbits, temporary capture and low-energy transfers 

      Fantino, Elena; Gómez, Gerard; Masdemont Soler, Josep; Ren, Yuan (2010-11)
      Article
      Restricted access - publisher's policy
    • Analysis of perturbations and station-keeping requirements in highly-inclined geosynchronous orbits 

      Fantino, Elena; Flores Le Roux, Roberto Maurice; Di Salvo, Alessio; Di Carlo, Marilena (2015)
      Conference report
      Open Access
      There is a demand for communications services at high latitudes that is not well served by conventional geostationary satellites. Alternatives using low-altitude orbits require too large constellations. Other options are ...
    • Efficient Two-Body Approximations of Impulsive Transfers between Halo Orbits 

      Fantino, Elena; Flores Le Roux, Roberto Maurice; Al-Khateeb, Ashraf (International Astronautical Federation, 2018)
      Conference report
      Restricted access - publisher's policy
      This contribution presents an efficient method to compute direct transfers between Halo orbits from two circular restricted three-body problems. Owing to the remarkable impulse given over the past two decades to the plans ...
    • Geosynchronous inclined orbits for high-latitude communications 

      Fantino, Elena; Flores Le Roux, Roberto Maurice; Di Carlo, Marilena; Di Salvo, Alessio; Cabot Soler, Elisenda (2017-11-01)
      Article
      Open Access
      We present and discuss a solution to the growing demand for satellite telecommunication coverage in the high-latitude geographical regions (beyond 55°N), where the signal from geostationary satellites is limited or ...
    • Minimum-fuel escape from two body sun-earth system 

      Colasurdo, Guido; Casalino, Lorenzo; Fantino, Elena (1999)
      Article
      Restricted access - publisher's policy
      Escaping from the solar system by receiving gravity assist from the Earth is considered in this paper. A simple procedure,which neglects the eccentricity of the Earth’s orbit and uses the two-body problem equations and ...
    • 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 ...
    • On the solution of Lambert's problem by regularization 

      Torre Sangrà, David de la; Flores Le Roux, Roberto Maurice; Fantino, Elena (2018-12)
      Article
      Open Access
      Lambert's problem is the two-point boundary-value problem resulting from a two-body orbital transfer between two position vectors in a given time. It lies at the very heart of several fundamental astrodynamics and space ...
    • 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 ...
    • Reduction of Saturn orbit insertion impulse using deep-space low thrust 

      Fantino, Elena; Flores Le Roux, Roberto Maurice; Peláez Álvarez, Jesús; Raposo-Pulido, Virginia (American Institute of Aeronautics and Astronautics, 2020-02-17)
      Article
      Open Access
      Orbit insertion at Saturn requires a large impulsive manoeuver due to the velocity difference between the spacecraft and the planet. This paper presents a strategy to reduce dramatically the hyperbolic excess speed at ...
    • Review of Lambert's problem 

      Torre Sangrà, David de la; Fantino, Elena (2015)
      Conference lecture
      Open Access
      Lambert’s problem is the orbital boundary-value problem constrained by two points and elapsed time. It is one of the most extensively studied problems in celestial mechanics and astrodynamics, and, as such, it has always ...
    • Star visibility and tracking from the Space Station 

      Bernacca, Pier Luigi; Facchinetti, Claudia; Fantino, Elena (2010-12)
      Article
      Restricted access - publisher's policy
      Purpose of the present study is to provide algorithms for and examples of how to simulate star visibility and tracking by a Telescope attached to the main truss of the International Space Station (ISS). The sky visibility ...
    • 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 ...