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16:47
 
2 hours later…
18:22
Maybe relevant to somebody else: there's been an effort to open-source an integrator that's matches JPL Horizons. It's called ASSIST github.com/matthewholman/assist and is based on REBOUND rebound.readthedocs.io/en/latest per mastodon.social/@sundogplanets/110594875934148383

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