Apollo Asteroids - an overview | ScienceDirect Topics
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 ...
Relationship of E-type Apollo asteroid 3103 (1982 BB) to the …
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 ...
Radar Observations of Asteroid 1862 Apollo - ScienceDirect
Apr 1, 2002 · Abstract. 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. Recommended articles.
Photometric study for near-Earth asteroid (155140) 2005 UD
Jan 1, 2021 · The Apollo-type near-Earth asteroid (155140) 2005 UD is thought to be a member of the Phaethon-Geminid meteor stream Complex (PGC). Its basic physical parameters are important for unveiling its origin and its relationship to the other PGC members as well as to the Geminid stream. Adopting the Lommel-Seeliger ellipsoid method and H, G1, G2 phase ...
Composition and size of Apollo asteroid 1984 KB - ScienceDirect
Mar 1, 1988 · Composition and size of Apollo asteroid 1984 KB. Reflection spectra and thermal-emission radiometry were obtained for the Earth-crossing asteroid 1984 KB. The spectrum exhibits the spectral signatures of olivine, pyroxene, and NiFe metal; it is typical of Class S objects and suggests a surface material similar to the rare lodranite meteorites ...
Relationship of E-type Apollo asteroid 3103 (1982 BB) to the …
Nov 1, 1992 · Apollo asteroid 3103 (1982 BB) is presently in an orbital resonance (3:5) with Earth and appears to be a relatively long-lived member of the Earth-approaching population. Its orbit is consistent with both the fall dates and long cosmic ray exposure ages of the aubrites.
Composition and size of Apollo asteroid 1984 KB - ScienceDirect
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.
The force model for asteroid (3200) Phaethon - ScienceDirect
Dec 1, 2015 · Asteroid (3200) Phaethon. 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 ...
Dynamical evolution and thermal history of asteroids (3200) …
Sep 15, 2021 · The Apollo asteroid 2005 UD (hereafter, UD) has been inferred to be associated with Phaethon on similarity of their orbital parameters (Ohtsuka et al., 2006) and colors (Jewitt and Hsieh, 2006). However, the common origin claim has been disputed on dynamical grounds by Ryabova et al. (2019) .
CCD reflectance spectra of Apollo asteroid 4179 Toutatis
Apr 1, 1994 · Asteroid 4179 Toutatis has been extensively observed during its 1992-93 close encounter with the Earth. We observed it spectroscopically in the visible at the ESO-La Silla Observatory (Chile) and at the Asiago Observatory (Italy). Analysis of low-resolution spectra of the asteroid taken at the Asiago Observatory (Italy) has revealed typical ...