Analytic Solution for Perturbed Keplerian Motion Under Small Acceleration Using Averaging Theory
| Autor: | Giacomo Curzi, Dario Modenini |
|---|---|
| Rok vydání: | 2022 |
| Předmět: |
Earth and Planetary Astrophysics (astro-ph.EP)
Atmospheric Science Geophysics Space and Planetary Science FOS: Mathematics Aerospace Engineering General Earth and Planetary Sciences FOS: Physical sciences Astronomy and Astrophysics Astrophysics::Earth and Planetary Astrophysics Dynamical Systems (math.DS) Mathematics - Dynamical Systems Astrophysics - Earth and Planetary Astrophysics |
| DOI: | 10.48550/arxiv.2204.06959 |
| Popis: | A novel approach is developed for analytic orbit propagation based on asymptotic expansion with respect to a small perturbative acceleration. The method improves upon existing first order asymptotic expansions by leveraging on linear systems and averaging theories. The solution starts with the linearization of Gauss planetary equations with respect to both the small perturbation and the six orbital elements. Then, an approximate solution is obtained in terms of secular and short period components. The method is tested on a low-thrust maneuver scenario consisting of a Keplerian orbit perturbed by a constant tangential acceleration, for which a solution can be obtained in terms of elliptic integrals. Results show that the positional propagation error is about one order of magnitude smaller with respect to state-of-the-art methods. The position accuracy for a LEO orbit, apart from pathological cases, is typically in the range of tens of meters for a dimensionless tangential acceleration of 1e-5 after 5 orbital periods propagation. Comment: Article submitted for publication in Advances in Space Research |
| Databáze: | OpenAIRE |
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