This week’s map shows the orbits of 18k asteroids in the solar system. This includes everything we know of that’s over 10km in diameter – 10k asteroids – as well as 8k randomized objects of unknown size. This map shows each asteroid at its exact position on New Years’ Eve 1999. All of the data for this map is shared by NASA and open to the public. However, the data is stored in several different databases so I had to do a decent amount of data cleaning. I’ve explained all of the steps in detail in my open-source code and tutorial, so I’ll just include a sketch of the process here in this blog post.

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