Visible to Thermal-Infrared Spectrophoto
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Alan W. Harris; Marco DelbΓ³; Richard P. Binzel; John K. Davies; Julie Roberts; D
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Article
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2001
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Elsevier Science
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English
β 61 KB
20461) 1999 LD 31 is one of the few objects with retrograde orbits listed in the Minor Planet Catalog and thus designated as asteroids rather than comets. Observations of (20461) 1999 LD 31 made in March 2000 with the 10-m Keck I telescope indicate an optical albedo, p v , of 0.03 Β± 0.01 and a diame