egg changed the topic of #principia to: Logs: https://esper.irclog.whitequark.org/principia | <scott_manley> anyone that doubts the wisdom of retrograde bop needs to get the hell out | https://xkcd.com/323/ | <egg> calculating the influence of lamont on Pluto is a bit silly…
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<_whitenotifier-7bc1> [Principia] eggrobin opened issue #3493: Orbit analysis of celestial bodies - https://github.com/mockingbirdnest/Principia/issues/3493
<queqiao-> ⟨egg⟩ (I looked at reddit as I do every year or so and saw a question about that)
<queqiao-> ⟨egg⟩ (also it has come up on Discord from time to time I think)
<_whitenotifier-7bc1> [Principia] eggrobin opened issue #3494: Preserve the history of destroyed vessels for future viewing - https://github.com/mockingbirdnest/Principia/issues/3494
<_whitenotifier-7bc1> [Principia] eggrobin commented on issue #3494: Preserve the history of destroyed vessels for future viewing - https://github.com/mockingbirdnest/Principia/issues/3494#issuecomment-1368158601
<queqiao-> ⟨YaBoiAnt⟩ does anyone wanna hop in a voice channel to help me get first rendezvous?
<paculino> Are you able to get to the part where you launch into the same plane but slightly lower?
<queqiao-> ⟨YaBoiAnt⟩ i know how to launch into the same plane but after that im lost sorta...
<paculino> I'm opening up ksp to get you some screenshots
<paculino> I'm sorry, it is taking a while to load. Basically, you wait until your active vessel (lower orbit) is barely behind the target vessel, then you raise the orbit just enough so that it touches. Then when at a close approach (about 5 to 20 km apart), cancel velocity; from this point on, using a reference frame relative to the target is helpful. If the active is ahead of the target and not very close, rai
<paculino> se the orbit altitude slightly (and lower it slightly if behind). After a few orbits, you should be much closer, and then it is just like stock.
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<queqiao-> ⟨egg⟩ Hmm, looks like the bridge died shortly after I posted that GIF. Maybe images are why it gets stuck? Anyway, for those across the bridge, I had posted https://cdn.discordapp.com/attachments/480397772248580098/1058618226998775869/EarthMoonLagrange.gif
<raptop> The wells seem to be moving around from the moon's eccentricity (mostly), right?
<queqiao-> ⟨egg⟩ The reference frame is pulsating so that the Earth and Moon don’t move, so the wells don’t move.
<paculino> Other side of the bridge, the URL is invalid
<queqiao-> ⟨egg⟩ Part of the motion is the Sun. Another part is probably the centrifugal potential changing over time. I guess the time dependence of the centrifugal potential is why that reference frame should be used with true anomaly, rather than time, as the independent variable.
<paculino> Err_invalid_response
<queqiao-> ⟨egg⟩ hm, raptop seems to have been able to see it
<raptop> hrm
<raptop> okay, terms and conditions apply on my being able to see it
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<paculino> That works
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<queqiao-> ⟨egg⟩ Part of the motion is the Sun. Another […] ⮪ Never mind, I just need to remember all the terms in my derivatives.
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<queqiao-> ⟨egg⟩ (bridge test)
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<queqiao-> ⟨egg⟩ beep
<queqiao-> ⟨egg|matrix|egg⟩ boop
<queqiao-> ⟨egg⟩ blargh, the bridge still uploads those things.
<queqiao-> ⟨egg⟩ anyway; raptop, here the effect of the eccentricity should be properly removed (and the variation should only be due to the sun)
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<queqiao-> ⟨egg⟩ (is the bridge still up?)
<queqiao-> ⟨egg⟩ (miraculously yes)
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<queqiao-> ⟨Butcher⟩ New year cat for you.
<raptop> new year; new cat
<raptop> (please ignore that it's the year of the bnnuy)
<queqiao-> ⟨YaBoiAnt⟩ ⟪paculino⟫ I'm sorry, it is taking a while to […] ⮪ ya nah this didnt help lol but thanks!
<queqiao-> ⟨Butcher⟩ ⟪raptop⟫ (please ignore that it's the year of […] ⮪ In Principia it is always the year of the cat.
<queqiao-> ⟨YaBoiAnt⟩ ⟪paculino⟫ I'm sorry, it is taking a while to […] ⮪ its more so about my timing of launch i know im doing something wrong i just cant figure it out
<queqiao-> ⟨egg⟩ ⟪raptop⟫ (please ignore that it's the year of […] ⮪ the year of the rabbit in the year of the cat in VN