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Record Details

Record 5 of 618
Resonances and librations of some Apollo and Amor asteroids with the Earth.
External Online Source: doi:10.1086/111390
Author and Affiliation:
Ip, W.-H.(California, University, La Jolla, Calif., United States)
Mehra, R.(Kungl. Tekniska Hogskolan, Stockholm, Sweden)
Abstract: The orbital evolution of the Apollo asteroids 1620 Geographos and 1685 Toro and Amor asteroids 433 Eros, 1221 Amor, and 1627 Ivar are investigated by numerical integration. All these asteroids, with the exception of Geographos, exhibit systematic orbital couplings with the Earth during the time interval studied (1600-2350 A.D.). 1685 Toro is captured into libration once with Venus due to the 13.5 resonance, and once with the Earth due to the 8:5 resonance. Both librations are unstable because of the effect of the 13:8 near commensurability of the Venus-Earth system. 433 Eros exhibits no libration pattern; the regular variation of its orbital period is due to the beat-effect of the 4:7 resonance with the Earth.
Publication Date: Feb 01, 1973
Document ID:
19730041886
(Acquired Dec 04, 1995)
Accession Number: 73A26688
Subject Category: SPACE SCIENCES
Document Type: Journal Article
Publication Information: Astronomical Journal; 78; Feb. 197
Publisher Information: United States
Contract/Grant/Task Num: NGR-05-009-110
Financial Sponsor: NASA; United States
Description: 6p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: ASTEROIDS; LIBRATIONAL MOTION; ORBIT PERTURBATION; RESONANCE; SOLAR ORBITS; EARTH (PLANET); NUMERICAL INTEGRATION; ORBITAL MECHANICS; PERIODIC VARIATIONS; PLANETARY GRAVITATION; SOLAR SYSTEM; VENUS (PLANET)
Imprint And Other Notes: Astronomical Journal, vol. 78, Feb. 1973, p. 142-147.
Miscellaneous Notes: p. 142-147
Availability Source: Other Sources
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