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== Close-approach data ==
As of August 2013 (planetary [[ephemeris]] [[Jet Propulsion Laboratory Development Ephemeris|DE431]]) close-approach data is available for the major planets and the 16 most massive asteroids. Close approach data is available by adding ";cad=1" to the end of the [[URL]].{{Citation needed|reason=Which url?|date=July 2017}}
== Orbit diagram ==
A [[Java (programming language)|Java]] applet is available and provided as a 3D orbit visualization tool. The applet was implemented using unreliable [[Two-body problem|2-body methods]], and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate ephemerides use the [[JPL Horizons On-Line Ephemeris System]] that handles the [[n-body problem]] using [[numerical integration]]. The Java applet is available by adding ";orb=1" to the end of the url.{{Citation needed|reason=Which url?|date=July 2017}}
==See also==
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