Physical parameters of near-earth asteroid 1982 DV

Details Physical parameters of near-earth asteroid 1982 DV Physical parameters of near-earth asteroid 1982 DV

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985icar...63..201v&link_type=abstract

Icarus (ISSN 0019-1035), vol. 63, Aug. 1985, p. 201-205.

Astronomy and Astrophysics

Astronomy

8

Amor Asteroid, Astronomical Photometry, Infrared Photometry, Spectrophotometry, Visual Observation, Absorption Spectra, Astronomical Models, Broadband, Narrowband, Near Infrared Radiation, Olivine, Pyroxenes, Asteroids, Physical Properties, Parameters, Asteroid 1982Dv, Observations, Infrared, Wavelengths, Amor Asteroids, Photometry, S Asteroids, Models, Spectrophotometry, Spectra, Absorption, Features, Composition, Albedo, Thermal Properties, Calculations, Comparisons, Surface, Size

Scientific paper

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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