On the dynamical stability of the Rosetta orbiter. II.

Details On the dynamical stability of the Rosetta orbiter. II. On the dynamical stability of the Rosetta orbiter. II.

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007a%26a...470.1193m&link_type=abstract

Astronomy and Astrophysics, Volume 470, Issue 3, August II 2007, pp.1193-1199

Astronomy and Astrophysics

Astrophysics

2

Celestial Mechanics, Space Vehicles, Comets: Individual: 67P/Churyumov-Gerasimenko, Methods: Analytical, Methods: Numerical

Scientific paper

In an orbit around a comet, a spacecraft is subject to several spin-orbit resonances. These enhanced couplings, induced by the rotation of the nucleus, by temporal variations in the outgassing pressure field and, at last, by a rotation of the probe's solar cell arrays, are systematically mapped in this paper. Using the simplified pendulum model, each resonance overlap problem is one-parametric. For the gravitational resonances, the boundary between shape stable and shape unstable cometocentric orbits is well formulated by a simple law in a parameter range which includes an adopted nominal Rosetta scenario. Stability conditions are discussed for each problem.

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