Stuff That’s Hard to Do (Falcon9 KPLO SKorean lunar-orbiter)


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  1. HEY!
    If *I* have to do 10th-order polynomials to do orbits, then YOU have to do 3rd- and 4th body problems.
    Don’t wimp out on us!!

    Comment by Igor — August 5, 2022 @ 11:06 am

  2. Igor ^
    I haven’t done any orbital mechanics since the ’70s, and that was just simple, deterministic 2-body Earth-satellite stuff using a slide rule. Okay, back in grad school, we did an Earth-to-Moon example, but that was simplified by transitioning from 2-body Earth gravity to 2-body Moon gravity at the point in the flight where they were equal. This stuff, on the other hand, is… woo! [rubs temples]

    Next week: orbiting a Lagrange point a la Webb Space Telescope

    Comment by DougM (just entertaining myself here) — August 5, 2022 @ 6:40 pm

  3. KPLO says: “Hold my soju.”

    Comment by mech — August 8, 2022 @ 8:42 am

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