Rock Abrasion Tool: Mars Exploration Rover mission

Details Rock Abrasion Tool: Mars Exploration Rover mission Rock Abrasion Tool: Mars Exploration Rover mission

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003jgre..108.8068g&link_type=abstract

Journal of Geophysical Research, Volume 108, Issue E12, pp. ROV 9-1, CiteID 8068, DOI 10.1029/2003JE002061

Other

30

Planetology: Solar System Objects: Dust, Planetology: Solar System Objects: Mars, Planetology: Solar System Objects: Instruments And Techniques, Physical Properties Of Rocks: General Or Miscellaneous

Scientific paper

The Rock Abrasion Tool (RAT) is an integral part of the Athena Science payload. Serving primarily as the geologist's rock hammer, the RAT will expose fresh surfaces of Martian rocks to other instruments on the payload. The RAT also brushes dust and debris from an excavated hole or unaltered rocks. To accomplish these tasks autonomously, the RAT, a sophisticated 3-axis precision-controlled device, was designed. Data products derived from RAT telemetry enable the RAT to also act as an important rock physical properties science instrument. The returned RAT grinding and penetration rate data will be inverted and compared to a rock library on the Earth. The design is also very compact and lightweight: the RAT is contained within a cylinder 128 mm long and 85 mm in diameter and has a mass of 687 g.

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