Spectral Properties of Near-Earth Objects: Palomar and IRTF Results for 48 Objects Including Spacecraft Targets (9969) Braille and (10302) 1989 ML

  title={Spectral Properties of Near-Earth Objects: Palomar and IRTF Results for 48 Objects Including Spacecraft Targets (9969) Braille and (10302) 1989 ML},
  author={R. Binzel and A. Harris and S. Bus and T. Burbine},
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, and early 2000. The compositional interpretations for 15 of these objects have been enhanced by the addition of near-infrared spectra obtained with the NASA Infrared Telescope Facility. One-third of our sampled objects fall in the Sq and Q classes and resemble ordinary chondrite meteorites. Overall our… Expand

Figures and Tables from this paper

Spectral observations for near-Earth objects including potential target 4660 Nereus : Results from Meudon remote observations at the NASA Infrared Telescope Facility (IRTF)
Abstract We present visible and near-infrared spectral measurements for the highly accessible spacecraft target 4660 Nereus and three additional near-Earth objects displaying diverse colorExpand
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
Infrared spectroscopic observations of 69230 Hermes (1937 UB): possible unweathered endmember among ordinary chondrite analogs
Abstract We have obtained near-infrared (0.8–2.5 μm) spectra of Hermes (1937 UB) using the NASA Infrared Telescope Facility on Mauna Kea. We find Hermes to have spectral properties consistent withExpand
Constraining albedo, diameter and composition of near-Earth asteroids via near-infrared spectroscopy
Abstract We present a method to constrain the albedo and diameters of near-Earth asteroids (NEAs) based on thermal flux in their near-infrared spectra (0.7–2.5 μm) using the Standard Thermal Model.Expand
Near-infrared spectroscopy of 1999 JU3, the target of the Hayabusa 2 mission
Context. Primitive asteroids contain complex organic material and ices relevant to the origin of life on Earth. These types of asteroids are the target of several-sample return missions to beExpand
Small Main-Belt Asteroid Spectroscopic Survey in the Near-Infrared
Abstract Near-infrared spectra (∼0.90 to ∼1.65 μm) are presented for 181 main-belt asteroids, more than half having diameters less than 20 km. These spectra were measured using a specialized grism atExpand
Optical colors of 56 near-Earth objects: trends with size and orbit
Abstract We present the results of BVRIZ photometry of 56 near-Earth objects (NEOs) obtained with the 1-m Jacobus Kapteyn telescope on La Palma during 2000 and 2001. Our sample includes many NEOsExpand
Visible and near-infrared spectroscopic investigation of near-Earth objects at ESO: first results☆
Near-Earth objects (NEOs) represent one of the most intriguing populations of Solar System bodies. These objects appear heterogeneous in all aspects of their physical properties, like shapes, sizes,Expand
Visible spectroscopy from the Mission Accessible Near-Earth Object Survey (MANOS): Taxonomic dependence on asteroid size
The Mission Accessible Near-Earth Object Survey (MANOS) aims to observe and characterize small (mean absolute magnitude H ~ 25 mag) Near-Earth Objects (NEOs) that are accessible by spacecraft (meanExpand
MUSES-C target asteroid (25143) 1998 SF36: A reddened ordinary chondrite
Abstract— Near-Earth asteroid (25143) 1998 SF36 is a planned target for the Japanese MUSES-C sample return mission. High signal-to-noise and relatively high-resolution (50 A) visible andExpand


Small Main-Belt Asteroid Spectroscopic Survey: Initial Results
The spectral characterization of small asteroids is important for understanding the evolution of their compositional and mineralogical properties. We report the results of a CCD spectroscopic surveyExpand
Spectral Properties of Near-Earth Asteroids: Evidence for Sources of Ordinary Chondrite Meteorites
Near-Earth asteroids were found to have spectral properties that span the range between the previously separated domains of OC meteorites and the most common (S class) asteroids, suggesting a link. Expand
S-Type Asteroids, Ordinary Chondrites, and Space Weathering: The Evidence from Galileo's Fly-bys of Gaspra and Ida
— New observations of the S-type asteroids Gaspra and Ida, especially, by the Galileo spacecraft demonstrate that a “space weathering” process operates, which modifies the reflectance spectra ofExpand
K asteroids and CO3/CV3 chondrites
Reflectance spectra from 0.44 to 1.65 pm were obtained for three K asteroids. These objects all have spectra consistent with olivine-dominated assemblages whose absorption bands have been suppressedExpand
EOS Family: A Spectroscopic Study
Abstract The Eos family detected by Hirayama in 1918 has been always considered to be compositionally homogeneous. To investigate the composition and the homogeneity of the members of this family, weExpand
Near-Earth Asteroids: Possible Sources from Reflectance Spectroscopy
The presence of near-Earth asteroid spectral signatures similar to those of certain main-belt asteroids supports models that derive some of these asteroids from the 5:2 Kirkwood gap and the Flora family by gravitational perturbations. Expand
Spectral reflectance characteristics of the meteorite classes
Spectral reflectance curves (0.35–2.5 μm) have been measured for about 150 individual meteorite specimens which represent nearly all the types and subtypes of meteorites present in terrestrialExpand
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
An efficient low- and moderate-resolution spectrograph for the Hale telescope
A new low-to-moderate resolution spectrograph has been designed and built for the Cassegrain focus of the Hale 5.08-meter telescope. To maximize efficiency, resolution, and wavelength coverage theExpand
Discovery of a basaltic asteroid in the outer main belt
It is shown that the region of the belt around Magnya is densely filled by mean-motion resonances, generating slow orbital diffusion processes and providing a potential mechanism for removing other basaltic fragments that may have been created on the same parent body as MagnyA. Expand