Can we Fix the Physics of the Interloper?

Very mild spoilers for Outer Wilds.
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The Interloper is a comet in Outer Wilds on an elliptical orbit which intersects the orbits of all other planets in the solar system. Because of this, you'd think it might run into one of them, and you'd be right! Fortunately the sun explodes before that can happen. I do some orbital physics stuff in this video to make it have an orbit that's possible. Probably. I don't have a quarter million years to spare to double check that its accurate so you'll have to forgive me.
I used some mods making this so here's the mods get them on outer wilds mods dot com.
Freecam by nebula and me
New Horizons by me and a million other people (to demonstrate the different possible orbits)
Cheat and debug menu by glitchewski
Real Solar System (for footage of Jupiter and stuff)
If you want the source code for this uh idk ask me in the comments maybe I'll do it I'm just too lazy to polish it into something that's actually releasable as a mod.