SPACE DEBRIS WITH HIGH A/M: A WEB OF SUB-RESONANCES

Nicolas Delsate, Anne Lemaître

Research output: Contribution in Book/Catalog/Report/Conference proceedingChapter

Abstract

The dynamics of space debris with very high A/m near the geostationary orbit is dominated by the gravitational coefficient C22 and the solar radiation pressure. We propose a stability atlas, for a large set of these objects, by numerically computing a diffusion indicator (using FMA). The results show chaotic layers around the separatrix and a relevant class of secondary resonances (associated to the period of the sun) near the pendulum-like pattern of geostationary objects. This succession of stable and chaotic layers can be reproduced and explained by a simple toy model, based on a pendulum approach, perturbed, through the eccentricity, by the Sun frequency. The use of action-angle variables in the circulation and libration regions of the pendulum allows to point out new resonances between the geostationary libration angle and the Sun's longitude.
Original languageEnglish
Title of host publicationFifth European Conference on Space Debris
Place of PublicationDarmstadt, Germany
PublisherESOC
Publication statusUnpublished - 2009

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Keywords

  • Geostationary; Space debris; Secondary resonance; Analytical model; Solar radiation pressure

Cite this

Delsate, N., & Lemaître, A. (2009). SPACE DEBRIS WITH HIGH A/M: A WEB OF SUB-RESONANCES. Unpublished. In Fifth European Conference on Space Debris ESOC.