Physical parameters of near-Earth asteroid 1982 DV |
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| Authors: | Faith Vilas David J Tholen Larry A Lebofsky Humberto Campins Glenn J Veeder Richard P Binzel Alan T Tokunaga |
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| Institution: | Lunar and Planetary Laboratory, University of Arizona, Tucson, Arizona 85721, USA;Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109, USA;Department of Astronomy, University of Texas, Austin, Texas 78712, USA;Institute for Astronomy, University of Hawaii, Honolulu, Hawaii 96822, USA |
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| Abstract: | Visual and infrared observations were made of Amor asteroid 1982 DV during its discovery apparition. Broadband visual and near-infrared photometry shows that it is an S-class asteroid. Narrowband spectrophotometry shows an absorption feature due to olivine or pyroxene or both centered at 0.93 μm. Applying a nonrotating thermal model to 10-μm photometry, the geometric albedo is calculated to be approximately 0.27. The geometric albedo for a slowly rotating, rocky surface was calculated for 1 night to be 0.15, consistent with S-class asteroid albedos. Thus, 1982 DV is either one of the most reflective S-class asteroids known, or a significant amount of bare rock is exposed on the asteroid's surface. For the nonrotating model, ellipsoidal dimensions for 1982 DV are 3.5 × 1.4 × 1.4 km. |
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