Computer Science
Scientific paper
Dec 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.249..211c&link_type=abstract
In ESA Proceedings of an ESA Workshop on the Comet Nucleus Sample Return Mission p 211-216 (SEE N87-25109 18-90)
Computer Science
Comet Nuclei, Core Sampling, Flyby Missions, Samplers, Drills, Low Temperature, Space Tools, Spacecraft Design, Thermal Insulation
Scientific paper
Three modes for obtaining samples of cometary material: remote sampling, hover mode sampling, and landed (anchored) sampling are discussed. For each mode, trade-offs involving complexity, risk factors, and cost must be analyzed for the spacecraft and the sampling system. Flyby results for comet Halley indicate heterogeneity in the cometary nucleus that could dictate sampling at several different locations. Coring drills, drive tubes, and specialized mantle sampling devices must operate at cold temperatures (100 to 180 K) without heating the sample. Sample selections must be accomodated by the sample return canister, which must also be protected from thermal excursions.
Amundsen R. J.
Blanchard Douglas P.
Clark Ben C.
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