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…
<_whitenotifier-8f55> [Principia] eggrobin closed pull request #4014: Budget the nodes per flight plan segment - https://github.com/mockingbirdnest/Principia/pull/4014
<_whitenotifier-8f55> [Principia] eggrobin closed issue #3837: Node limit improvements - https://github.com/mockingbirdnest/Principia/issues/3837
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<queqiao-> ⟨Rad - LR-87 fanatic⟩ Oh you want to see old, do you?
<queqiao-> ⟨lpg4999⟩ he does not, is the point, I think
<queqiao-> ⟨Rad - LR-87 fanatic⟩ Too bad
<queqiao-> ⟨Rad - LR-87 fanatic⟩ Let’s see how long this takes to load…
<queqiao-> ⟨Rad - LR-87 fanatic⟩ 19 minutes
<queqiao-> ⟨Rad - LR-87 fanatic⟩ What font size would this one receive?
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<queqiao-> ⟨__waverider⟩ how do I do something like this?
<queqiao-> ⟨__waverider⟩ https://www.youtube.com/watch?v=Auw5mwx4jpk
<queqiao-> ⟨__waverider⟩ the maneuver nodes SUCK
<queqiao-> ⟨__waverider⟩ mechjeb cant do jack
<queqiao-> ⟨__waverider⟩ when I manually do it its also off
<queqiao-> ⟨__waverider⟩ because of this ive never had a successful lunar transfer in Principia
<queqiao-> ⟨__waverider⟩ I can do the planning part
<queqiao-> ⟨__waverider⟩ I have the required understanding of orbital mechanics
<queqiao-> ⟨__waverider⟩ but gosh the timing is bad
<queqiao-> ⟨__waverider⟩ I have the required understanding of (basic) orbital mechanics
<queqiao-> ⟨test_account9540⟩ If you mean never had a successful moon flyby then something like in that video a several times harder. Need to learn moon flyby first
<queqiao-> ⟨test_account9540⟩ * is
<queqiao-> ⟨__waverider⟩ ive done lunar flybys with principia before but Ive had to save and reload like 50 times to get the timing on the burn right because nothing that the game tells me is correct
<queqiao-> ⟨__waverider⟩ is there any way to counter the innacurate manuver nodes?
<queqiao-> ⟨__waverider⟩ * inaccurate maneuver
<queqiao-> ⟨test_account9540⟩ How so? You get into the parking orbit, plan the TLI in principia, execute the maneuver (AFAIK J can do it for you), make slight corrections with RCS if your probe is hopefully guided
<queqiao-> ⟨test_account9540⟩ Stock maneuver nodes are not used at all with principia
<queqiao-> ⟨__waverider⟩ I use the principia flight planner
<queqiao-> ⟨test_account9540⟩ How so? You get into the parking orbit, plan the TLI in principia, execute the maneuver (AFAIK MJ can do it for you), make slight corrections with RCS if your probe is hopefully guided
<queqiao-> ⟨test_account9540⟩ so what's the issue?
<queqiao-> ⟨__waverider⟩ when I execute the maneuver at the time it tells me to, it is usually completely off in terms of timing
<queqiao-> ⟨__waverider⟩ (purple is actual, gray is planned)
<queqiao-> ⟨__waverider⟩ "start burn in"
<queqiao-> ⟨test_account9540⟩ Maybe your flight plan is not actual (say you made a plan, then made some maneuvers, didn't rebase the plan) 🤔
<queqiao-> ⟨__waverider⟩ ill try rebasing it but usually the only maneuvers I do in a parking orbit are attitude changes with rcs
<queqiao-> ⟨test_account9540⟩ Need a screenshot of the issue I think (with flight plan, planned trajectory and actual trajectory after maneuver)
<queqiao-> ⟨__waverider⟩ ight give me a bit
<queqiao-> ⟨barabenji⟩ Ohmy, these new graphic settings look amazing.
<queqiao-> (Sorry)
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<_whitenotifier-8f55> [Principia] pleroy tagged 9fb3103 as 2024060613-𒁹𒆠𒁷𒉡 https://github.com/mockingbirdnest/Principia/commit/9fb31039dab1a147e9f302f3f333341117983056
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<queqiao-> ⟨__waverider⟩ I reinstalled mechjeb and principia, used mechjeb to execute it, and it worked perfectly
<queqiao-> ⟨qazerowl⟩ Also use the dev version of mechjeb
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<raptop> ...can Principia simulate this? https://arxiv.org/abs/2405.20411
<raptop> More seriously, huh, analytic models in case you want additional tests: https://arxiv.org/abs/2405.20377
<queqiao-> ⟨x3rcesblue⟩ Does principia consider testflight engine failures in its trajectory calculation?
<queqiao-> ⟨test_account9540⟩ No
<queqiao-> ⟨test_account9540⟩ Or do you mean failures that already occurred, so you have some engines and some bad engines? I suppose you should just switch off the bad ones.
<queqiao-> ⟨test_account9540⟩ +good
<queqiao-> ⟨test_account9540⟩ Not sure about the weird case of partially broken engine that has lower thrust or isp but works 🤔
<queqiao-> ⟨x3rcesblue⟩ In my case I have one engine that has suffered thrust loss
<queqiao-> ⟨test_account9540⟩ Try enabling only this engine, planning a maneuver, then disabling it and enabling a good one and planning again? Will the burn time be different or the same?
<queqiao-> ⟨__waverider⟩ this is an NRHO, correct?
<queqiao-> ⟨__waverider⟩ (plotted from an MEO)
<queqiao-> ⟨__waverider⟩ * MEO reference frame )
<queqiao-> ⟨skyphoenix999⟩ Looks like it yeah
<raptop> What happened to that one's ear?
<queqiao-> ⟨butcher6994⟩ Dunno
<queqiao-> ⟨clayel⟩ is it folded down or gone? cant tell from that pic
<queqiao-> ⟨butcher6994⟩ Folded
<_whitenotifier-8f55> [Principia] pleroy opened pull request #4016: Round the polynomial coefficients using Mathematica and take advantage of powers of two - https://github.com/mockingbirdnest/Principia/pull/4016
<_whitenotifier-8f55> [Principia] pleroy closed pull request #4016: Round the polynomial coefficients using Mathematica and take advantage of powers of two - https://github.com/mockingbirdnest/Principia/pull/4016
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