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 language | English |
|---|---|
| Title of host publication | Fifth European Conference on Space Debris |
| Place of Publication | Darmstadt, Germany |
| Publisher | ESOC |
| Publication status | Unpublished - 2009 |
Keywords
- Geostationary; Space debris; Secondary resonance; Analytical model; Solar radiation pressure