A Future Moon Mission: Curatorial Statistics on Regolith Fragments Applicable to Sample Collection by RakingThe strategy of raking rock fragments from the lunar regolith as a means of acquiring representative samples has wide support due to science return, spacecraft simplicity (reliability) and economy [3, 4, 5]. While there exists widespread agreement that raking or sieving the bulk regolith is good strategy, there is lively discussion about the minimum sample size. Advocates of consor-tium studies desire fragments large enough to support petrologic and isotopic studies. Fragments from 5 to 10 mm are thought adequate [4, 5]. Yet, Jolliff et al.  demonstrated use of 2-4 mm fragments as repre-sentative of larger rocks. Here we make use of cura-torial records and sample catalogs to give a different perspective on minimum sample size for a robotic sample collector.
Allton, J. H. (Lockheed Martin Corp. Houston, TX, United States)
Bevill, T. J. (Lockheed Martin Corp. Houston, TX, United States)