Resonance with orbital elements

  1. Hello

    I would like to understand the resonance phenomenon that can occurs when we deals with satellite's orbits.

    Here what it is said about it :

    KAULA - Theory of satellite geodesy - p. 49

    http://lib.freescienceengineering.org/search.php?search_type=author&search_text=kaula&submit=Dig+for

    What does libration mean ? What things should we be carreful when we deal with resonance ?

    Thanks
     
  2. jcsd
  3. Libration is usually a sort of circulation around in a pattern. Secular motions are very-long period, so much so that they can seem to be non-periodic, and seem to just flow in one direction.
    Resonances are usually just simple numeric ratios between bodies in orbit. There is a famous one between Jupiter and Saturn - 5 orbits of Jupiter take place in roughly the same time as 2 orbits of Saturn.
     
  4. 4. A resonance occurs when there is a near-exact relation between characteristic frequencies of two bodies. For example, a mean-motion resonance occurs between two
    planets with orbital periods...

    copy and past from this article.

    LECTURE NOTES ON THE FORMATION AND
    EARLY EVOLUTION OF PLANETARY SYSTEMS
    http://arxiv.org/pdf/astro-ph/0701485.pdf

    its briefly covered in chapter 4. page 3

    hope this helps as well as the article itself
     
  5. Borek

    Staff: Mentor

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