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Record Details

Record 13 of 17134
Derivation of the collision probability between orbiting objects The lifetimes of Jupiter's outer moons
External Online Source: doi:10.1016/0019-1035(81)90151-2
Author and Affiliation:
Kessler, D. J.(NASA Johnson Space Center, Houston, TX, United States)
Abstract: A general form is derived for Opik's equations relating to the probability of collision between two orbiting objects to their orbital elements, and used to determine the collisional lifetime of the eight outer moons of Jupiter. The derivation is based on a concept of spatial density, or average number of objects found in a unit volume, and results in a set of equations that are easily applied to a variety of orbital collision problems. When applied to the outer satellites, which are all in irregular orbits, the equations predict a relatively long collisional lifetime for the four retrograde moons (about 270 billon years on the average) and a shorter time for the four posigrade moons (0.9 billion years). This short time is suggestive of a past collision history, and may account for the orbiting dust detected by Pioneers 10 and 11.
Publication Date: Oct 01, 1981
Document ID:
19820035944
(Acquired Nov 30, 1995)
Accession Number: 82A19479
Subject Category: LUNAR AND PLANETARY EXPLORATION
Document Type: Journal Article
Publication Information: Icarus; 48; Oct. 198
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: NASA Johnson Space Center; Houston, TX, United States
Description: 10p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: COLLISIONS; JUPITER (PLANET); NATURAL SATELLITES; OPIK THEORY; ORBITAL ELEMENTS; PLANETARY ORBITS; PROBABILITY THEORY; NUMERICAL ANALYSIS; PIONEER 10 SPACE PROBE; PIONEER 11 SPACE PROBE; SPATIAL DISTRIBUTION
Imprint And Other Notes: Icarus, vol. 48, Oct. 1981, p. 39-48.
Miscellaneous Notes: p. 39-48
Availability Source: Other Sources
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