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Memorias de investigación
Communications at congresses:
Efficient numerical propagation of planetary close encounters with regularized element methods
Year:2016
Research Areas
  • Space technology
Information
Abstract
Close encounters with major Solar System bodies may bring about a strong amplification of numerical error during interplanetary orbit propagation. In this work, we reduce global numerical error by integrating regularized equations of motion instead of the classical Newtonian equations in Cartesian coordinates. The integration performance of several sets of regularized equations is assessed from large-scale numerical propagations of close encounters in the Sun-Earth planar CR3BP. An essential device is switching between primary bodies during the propagation, which effectively decomposes a strongly-perturbed heliocentric problem into two weakly-perturbed ones; this propagation approach has been dubbed Online Trajectory Matching (OTM). Through this simple expedient, regularized equations describing the evolution of non-classical orbital elements achieve excellent performances compared to Newtonian equations, even when employing sophisticated adaptive numerical schemes. Further improvements might be expected by carefully selecting the location of the switch of primary bodies during the propagation.
International
Si
Congress
6th International Conference on Astrodynamics Tools and Techniques (ICATT)
960
Place
Darmstadt, Alemania
Reviewers
No
ISBN/ISSN
Start Date
14/03/2016
End Date
17/03/2016
From page
To page
Publicación en linea: https://indico.esa.int/indico/event/111/session/16/contribution/149/material/paper/0.pdf
Participants
  • Autor: Davide Amato (UPM)
  • Autor: Claudio Bombardelli (UPM)
  • Autor: Giulio Baù (Università di Pisa, Pisa, Italia)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Dinámica Espacial (SDG-UPM)
  • Departamento: Física Aplicada a Las Ingenierías Aeronáutica y Naval
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