Physics
Scientific paper
May 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aems.nasa....1c&link_type=abstract
In NASA. Ames Research Center, The 27th Aerospace Mechanisms Symposium p 1-19 (SEE N94-29627 08-15)
Physics
Comet Nuclei, Comets, Core Sampling, Cryogenic Temperature, Soils, Vacuum, Dust, Microgravity, Prototypes
Scientific paper
In the reference scenario of the ROSETTA CNRS mission, the Sample Acquisition System is mounted on the Comet Lander. Its tasks are to acquire three kinds of cometary samples and to transfer them to the Earth Return Capsule. Operations are to be performed in vacuum and microgravity, on a probably rough and dusty surface, in a largely unknown material, at temperatures in the order of 100 K. The concept and operation of the Sample Acquisition System are presented. The design of the prototype corer and surface sampling tool, and of the equipment for testing them at cryogenic temperatures in ambient conditions and in vacuum in various materials representing cometary soil, are described. Results of recent preliminary tests performed in low temperature thermal vacuum in a cometary analog ice-dust mixture are provided.
Coste P. A.
Eiden Michael
Fenzi M.
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