The importance of comet models in the design of the Rosetta mission

Details The importance of comet models in the design of the Rosetta mission The importance of comet models in the design of the Rosetta mission

Apr 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992angeo..10..123d&link_type=abstract

(Modelling, simulation and sounding of cometary nuclei; Proceedings of the International Workshop, Cagliari, Italy, May 28-30, 1

Computer Science

Sound

3

Astronomical Models, Comets, European Space Programs, Mission Planning, Rendezvous Spacecraft, Space Missions, Spacecraft Design, Cometary Atmospheres, Extraterrestrial Environments, Spacecraft Control, Stabilization

Scientific paper

The particular system and spacecraft design issues associated with a sample return mission to the relatively unknown environment of a comet is discussed. The required characteristics of the design - robustness, adaptability, and autonomy - are described in relation to the three major phases in the evolution of scientific knowledge about comet properties, i.e., before launch, during the comet observation phase, and during the landing/on-comet operations. The classification of comet characteristics into observable and nonobservable parameters is used to identify the respective responsibilities of the ground control station and the space segment. The requirement for onboard autonomy during the landing and on-comet operations is shown to have a significant impact on the spacecraft design, and it imposes specific requirements on comet kinematic, dynamic, and surface models. To illustrate the important relationship between comet models and spacecraft design, various technical solutions developed to cope with the autonomy requirements are presented.

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