The Nature of Space Weathering Effects on Asteroid 433 Eros

Details The Nature of Space Weathering Effects on Asteroid 433 Eros The Nature of Space Weathering Effects on Asteroid 433 Eros

Jan 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002assl..278...13c&link_type=abstract

Solar System Remote Sensing, p. 13

Physics

Asteroids, Space Weathering, Planetary Surfaces, Planetary Craters, Spectrum Analysis, Spectral Reflectance, Remote Sensing, Grain Size, Olivine, Models, Quantitative Analysis

Scientific paper

Combined Multi-Spectral Imager (MSI) (0.95um) and Near-Infrared Spectrometer (NIS) (0.8 to 2.4 micron) observations of Psyche crater on 433 Eros are analysed to investigate the nature of space weathering effects on Eros. At 5.3 km in diameter, Psyche is one of the largest craters on Eros which exhibit distinctive brightness patterns consistent with downslope motion of dark regolith material overlying a substrate of brighter material. At spatial scales of 620 m/spectrum, Psyche crater wall materials exhibit albedo contrasts of 32-40% at 0.946 micron. Associated spectral variations occur at a much lower level of 4-8% (+/- 2-4%).

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