Keplerian Elements for Approximate Positions of Minor Planets

NASA has had simple approximations of orbital elements available on their website for years, however those only list the major planets and Pluto.

I needed approximate positions for big asteroids and dwarf planets for a project and couldn’t find them anywhere, so I calculated a linear best fit based on data from NASA Horizons.

The resulting data is available here: Keplerian Elements for Approximate Positions of Minor Planets

A quick note: Many trans-neptunian objects have orbital elements that move around all over the place. The approximations here are valid over the quoted time line (1950-2100) but you cannot extrapolate them into the future.

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