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Phase II of the Small Main-Belt Asteroid Spectroscopic Survey: A Feature-Based Taxonomy
The second phase of the Small Main-belt Asteroid Spectroscopic Survey (SMASSII) produced an internally consistent set of visible-wavelength charge-coupled device (CCD) spectra for 1447 asteroids (BusExpand
An extension of the Bus asteroid taxonomy into the near-infrared
An asteroid taxonomy classification system based on reflectance spectrum characteristics for 371 asteroids measured over the wavelength range 0.45 to 2.45 μm is presented and nearly all of the Bus taxonomy classes are preserved, with one new class (Sv). Expand
Phase II of the Small Main-Belt Asteroid Spectroscopic Survey: The Observations
Abstract We present visible-wavelength (0.435–0.925 μm) spectroscopic measurements for 1341 main-belt asteroids observed during the second phase of the Small Main-belt Asteroid Spectroscopic SurveyExpand
Bias-corrected population, size distribution, and impact hazard for the near-Earth objects
Abstract Utilizing the largest available data sets for the observed taxonomic (Binzel et al., 2004, Icarus 170, 259–294) and albedo (Delbo et al., 2003, Icarus 166, 116–130) distributions of theExpand
Observed spectral properties of near-Earth objects: results for population distribution, source regions, and space weathering processes
Abstract We present new visible and near-infrared spectroscopic measurements for 252 near-Earth (NEO) and Mars-crossing (MC) objects observed from 1994 through 2002 as a complement to the SmallExpand
Chips off of Asteroid 4 Vesta: Evidence for the Parent Body of Basaltic Achondrite Meteorites
The sizes, ejection velocities of 500 meters per second, and proximity of these fragments to the 3:1 resonance establish Vesta as a dynamically viable source for eucrite, diogenite, and howardite meteorites. Expand
Impact excavation on Asteroid 4 Vesta: Hubble Space Telescope results
Hubble Space Telescope images of asteroid 4 Vesta obtained during the favorable 1996 apparition show an impact crater 460 kilometers in diameter near the south pole. Color measurements within theExpand
Vesta: Spin Pole, Size, and Shape from HST Images
Abstract HST images obtained over an interval of 71 hr at a scale of 52 km/pixel have been used to determine the spin pole, size, and shape of Vesta. Several bright and dark surface features allowExpand
Spectral Properties of Near-Earth Objects: Palomar and IRTF Results for 48 Objects Including Spacecraft Targets (9969) Braille and (10302) 1989 ML
Abstract We present results of visible wavelength spectroscopic measurements for 48 near-Earth objects (NEOs) obtained with the 5-m telescope at Palomar Mountain Observatory during 1998, 1999, andExpand
Keck observations of near-Earth asteroids in the thermal infrared
We present the results of thermal-infrared observations of 20 near-Earth asteroids (NEAs) obtained in the period March 2000–February 2002 with the 10-m Keck-I telescope on Mauna Kea, Hawaii. TheExpand