...

Author T. Mothé-Diniz was supported by the Conselho Nacional de Desenvolvimento Científico e Tecnológico - CNPq/Brasil.

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...

The work of D.N. was supported by the NASA's Planetary Geology and Geophysics program.

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... time

Space weathering is the phenomenon, possibly due to micrometeorite impact and solar wind impingement, which modifies spectral reflectances from that of the inherent mineral assemblages.

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... S-types

See, for example, Bus & Binzel (2002) for definition of taxonomic types, including S-types.

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