The calculated orbit for Tagish Lake is a typical Earth-crossing Apollo asteroid-type orbit with a semimajor axis in the middle of the asteroid belt. A dynamical linkage with outerbelt objects is possible as the IR spectra of bulk Tagish Lake are most similar to D-type asteroids (Hiroi et al., 2001). The orbit also crosses much of the main belt ...

Mar 1, 1988 · A standard asteroid thermal model implies a radius of ∼0.7 km and an albedo of ∼0.16 (similar to Class S objects). An analysis of the same thermal data with a bare-rock thermal model gives an albedo inconsistent with the IR spectrum, suggesting that this object has a significant regolith despite its small size.

Mar 1, 1988 · I. INTRODUCTION The asteroid 1984 KB was discovered on 27 May 1984 by Carolyn and Eugene Shoemaker with the Palomar 0.46-m Schmidt telescope. This small object is a member of the rare Earth-crossing or "Apollo" group, which comprises asteroids on highly eccentric orbits whose perihelia lie inside the orbit of Earth.

Nov 1, 1992 · The average spectral albedo of Apollo asteroid 3103 (1982 BB) computed by two normalization procedures and for two albedos compared to the spectral albedo of E-type asteroid 44 Nysa: (A) Normalization reflectance determined by a linear extrapolation of the 0.8- to 1.3-Am portion of the spectrum for albedo = 0.63 (upper open squares) and for ...

Dec 1, 2015 · Asteroid (3200) Phaethon (discovered as 1983 TB) is an Apollo asteroid having very small (0.14 au) perihelion distance and medium (2.4 au) for near-Earth asteroids aphelion distance (Fig. 1). This asteroid is believed to be the parent body for the Geminid meteoroid stream, but its origin is not quite clear (Ryabova, 2007). To model meteoroid ...

Apr 1, 1994 · The radar images of this asteroid (Ostro, 1992) revealed a contact binary object consisting of two pieces probably held in contact by gravity ; one piece has an average diam- eter of about 4 km, the other of about 2.5 km. Radar images revealed that another asteroid, 646 Castalia, pre- sents two loosely joined lobes.

Apr 1, 2002 · Arecibo radar echo spectra show the Q-class asteroid 1862 Apollo to have an elongation within 10% of 1.27, a pole-on silhouette with an average dimension of about 1.7 km, and disc-integrated radar properties that are typical for radar-detected near-Earth asteroids.

Apr 1, 2002 · We report radar, photometric, and spectroscopic observations of near-Earth Asteroid (136617) 1994 CC. The radar measurements were obtained at Goldstone (8560 MHz, 3.5 cm) and Arecibo (2380 MHz, 12.6 cm) on 9 days following the asteroid’s approach within 0.0168 AU on June 10, 2009. 1994 CC was also observed with the Panchromatic Robotic Optical Monitoring and Polarimetry Telescopes (PROMPT ...

Sep 1, 1981 · In these bodies, formed near the ORIGIN OF APOLLO-AMOR ASTEROIDS outer edge of the main asteroid belt, the ices must be present in varying amounts from minor constituents up to their content in "normal" cometary nuclei. 4. Meanwhile, there are good reasons to regard Apollo and Amor asteroids as the last parent bodies of meteorites.

Mar 2, 2013 · And last week the European Space Agency announced plans to intercept a harmless Apollo asteroid called Didymos in 2022. If it works, the technique could also deflect an Earth-bound asteroid. This article appeared in print under the headline “Asteroid detectives”