Description Usage Format Details Source References Examples
Some minor planets may have been sighted more than once. In the data frame, sightings thought to be of the same planet are listed together. This is Table 1.1 in the Introduction of Hartigan (1975) on page 2.
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A data frame with 19 observations on the following 4 variables.
name
a character vector for the year of sighting and astronomer initials
node
a numeric vector for the angle in degrees in the earth plane at which the minor planet crosses the earth's orbit
inclination
a numeric vector for the angle in degrees between the plane of the earth's orbit and the plane of the planet's orbit
axis
a numeric vector for the maximum distance of the minor planet from the sun in astronomical units
None.
Elements of Minor Planets (1961), University of Cincinnati Observatory
SPAETH2 Cluster Analysis Datasets http://people.sc.fsu.edu/~jburkardt/datasets/spaeth2/spaeth2.html
Hartigan, J. A. (1975). Clustering Algorithms, John Wiley, New York.
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