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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<queqiao->
⟨egg⟩ Some locations can reduce *longitudinal* drift, but nothing will prevent the moon from poking at the inclination
<queqiao->
⟨Soviet Onion⟩ this can give you an idea
<UmbralRaptop>
patch together some conics, or grab a Δv map for a first order approximation
<UmbralRaptop>
E = v²/2 + μ/r == -μ/2a will get you a very long way if you want to do the calcs yourself, but like in stock KSP getting into x-orbit is dependent in part on what trajectory you choose
<UmbralRaptop>
More or less Hohmann work close enough to stock, though there are also low energy transfer shenanigans available
<queqiao->
⟨Tori⟩ I'm talking about RSS principia
<queqiao->
⟨Soviet Onion⟩ that's RSS?
<queqiao->
⟨Tori⟩ Huh
<queqiao->
⟨Soviet Onion⟩ I doubt Wikipedia has a page on KSP delta-v budget
<queqiao->
⟨Tori⟩ Exactly bro
<queqiao->
⟨Tori⟩ Then y you linking it
<queqiao->
⟨Tori⟩ I mean look at the channel we are talking in
<queqiao->
⟨Tori⟩ And the server
<queqiao->
⟨Soviet Onion⟩ because that includes delta-v for Earth-Moon, as well as some C3>0
<queqiao->
⟨Soviet Onion⟩ |:
<queqiao->
⟨Soviet Onion⟩ delta-V won't be that different from real life delta v. Especially with Principia
<queqiao->
⟨Soviet Onion⟩ also, I didn't say that's exact. I only said it will give you an idea
<queqiao->
⟨Damien⟩ RL reference material works for RSS because 'real'
<queqiao->
⟨Damien⟩ And principia doesn't really affect DV budgets unless you use low energy transfers. The RL space race moon missions didn't use n-body calculations anyway. They used patched conics
<queqiao->
⟨Sir Mortimer⟩ low energy transfers don't go well with races.
<queqiao->
⟨Farrier⟩ Google rss dv map
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<_whitenotifier>
[Principia] AleXmShef opened issue #3132: Extend external addon API (yet again) - https://git.io/JgPmr
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<queqiao->
⟨NewfieStargazer⟩ What is the difference between the “tolerance” and “steps”? Which one is best to increase?
<queqiao->
⟨NewfieStargazer⟩ Or which one is “less” CPU intense
<queqiao->
⟨lpg⟩ more steps means more work for the cpu. bigger tolerance means more "distance" per step, so can use fewer steps for a given prediction, but less accurate prediction
<queqiao->
⟨NewfieStargazer⟩ That makes sense
<queqiao->
⟨NewfieStargazer⟩ Thanks for the explanation
<queqiao->
⟨Osirin⟩ does principia make pluto and charon almost bianary?
<queqiao->
⟨D0m1nu2⟩ Hey devs of Principia, I would like to ask you if you plan to add atmospheric decay in future?
<queqiao->
⟨Osirin⟩ that won't happen if I remember correctly, mostly because it would be very difficult to make happen.
<queqiao->
⟨egg⟩ this came up recently on the forum thread <https://forum.kerbalspaceprogram.com/index.php?/topic/162200-wip181-191-1101-1110%E2%80%932-1122-principia%E2%80%94version-haar-released-2021-09-07%E2%80%94n-body-and-extended-body-gravitation/page/74/&tab=comments#comment-4031282>. Would probably be tricky, but far more importantly would make things that are possible and useful IRL wholly unplayable unless au
<queqiao->
⟨chazzvader⟩ automatic stationkeeping seems like an massive rabbit hole
<queqiao->
⟨chazzvader⟩ like you would somehow need to define the intended orbit and figure out how to get to it?
<queqiao->
⟨Paculino (ŝi/ri/she/they)⟩ And do something to deal with what to do when fuel runs out (sudden stop, or gradually allow drift)
<queqiao->
⟨chazzvader⟩ for atmospheric decay, you could track how much its slows and subtract that much dV
<queqiao->
⟨chazzvader⟩ wouldn't be realistic but it would work
<raptop>
Tracking the amount that it slows is surprisingly difficult
<raptop>
(I mean, useful approximations might be doable, but this is a bit afield of how Principia takes gravity very seriously)
<queqiao->
⟨D0m1nu2⟩ Aight, thanks for answer!
<_whitenotifier>
[Principia] pleroy synchronize pull request #3130: Improve the parsing of time spans - https://git.io/JgsMq