67P/Churyumov-Gerasimenko physical parameters determination based on CONGO model, a physical and dynamical model

Lucie Maquet (1, 2, 3) , François Colas (2, 3) , Laurent Jorda (4) , Jacques Crovisier (1)

1 LESIA - Laboratoire d'études spatiales et d'instrumentation en astrophysique
2 IMCCE - Institut de Mécanique Céleste et de Calcul des Ephémérides
3 GAP - Groupe Astrométrie et Planétologie
4 LAM - Laboratoire d'Astrophysique de Marseille

We present here the CONGO model for COmetary Non-Gravitational Orbits. The method is based on the modeling of the nucleus surface in several strips located at different latitudes. The contribution of each strip to the overall NGF and the density of the nucleus are fitted from the astrometric and photometric measurements. We applied this model to 67P/Churyumov-Gerasimenko, target of Rosetta mission.

Domaines: Astrophysique [astro-ph]

Lucie Maquet, François Colas, Laurent Jorda, Jacques Crovisier. 67P/Churyumov-Gerasimenko physical parameters determination based on CONGO model, a physical and dynamical model. European Planetary Science Congress 2013, Sep 2013, Londres, United Kingdom. ⟨hal-03743190⟩