The textbox above contains a sample comet definition. The first line of the definition should be the object description. There must be a "T" for the time at Perihelion, and a "q" for the Perihelion distance. There must be a "Peri." for the argument of perihelion. There must be a "Node" for the longitude of the ascending node, with an optional epoch year (defaults to 2000). There must be "Incl." for the inclination. Eccentricity "e" is optional and defaults to 1.0.
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This web page was last updated 07/09/15