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…
<queqiao-> ⟨Infernal⟩ is someone able to bestow some wisdom upon me of getting to venus, Idk how I managed the first time around but I cannot get close enough to venus without spending too much delta v
<queqiao-> ⟨Infernal⟩ I'm in the right LAN to my knowledge, aswell as proper inclination for an encounter but closest i've gotten is 8,000,000 km
<queqiao-> ⟨Quadrupole⟩ You have a screenshot of TWP and map view?
<queqiao-> ⟨Infernal⟩ i can give it to you, what map view are you looking for?
<queqiao-> ⟨Infernal⟩ ⟪Quadrupole⟫ You have a screenshot of TWP and map […] ⮪ If you meant another map view lemme know
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<queqiao-> ⟨Quadrupole⟩ From what I can tell, your perihelion is nowhere near Venus' orbit. Maybe you should adjust yoir TVI burn, such as ejection time and/or prograde component.
<queqiao-> ⟨RurouniDonut⟩ Isn't this the latest window planner that should be used with Principia? https://github.com/Nazfib/TransferWindowPlanner
<queqiao-> ⟨Al2Me6⟩ Yes.
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<queqiao-> ⟨maxminster2⟩ what's the deviation of a spin stabilized sattelite around its axis called? pertubation?
<queqiao-> ⟨Al2Me6⟩ Precession
<queqiao-> ⟨maxminster2⟩ thanks
<queqiao-> ⟨RurouniDonut⟩ idk if this should go in the mechjeb channel but I see Mechjeb has an execute principia node option? How does that work?
<queqiao-> ⟨Al2Me6⟩ It just points at the node and burns for as long as Principia says. Which doesn't work well in practice because it doesn't know about spool-up.
<queqiao-> ⟨von Kerman⟩ and variance
<queqiao-> ⟨RurouniDonut⟩ Principia doesnt take into account spool up either right?
<queqiao-> ⟨von Kerman⟩ it doesn't know about either
<queqiao-> ⟨von Kerman⟩ note that variance has a bigger effect than spool-up, at least for the early engines
<queqiao-> ⟨RurouniDonut⟩ it'd be cool if there was a way to input spool up time
<queqiao-> ⟨RurouniDonut⟩ like a little box for spool up time for the engines and you just type however many seconds or milliseconds it is
<queqiao-> ⟨von Kerman⟩ again, it will not help that much because of variance...
<queqiao-> ⟨RurouniDonut⟩ by variance you mean?
<queqiao-> ⟨von Kerman⟩ This is the wonderful AJ10 (Early)
<queqiao-> ⟨RurouniDonut⟩ oh wait what, is this a new thing? I havnt played in like a year and a half lol
<queqiao-> ⟨Transparent_Elemental⟩ yes
<queqiao-> ⟨RurouniDonut⟩ so really tight burns are a lot more risky now?
<queqiao-> ⟨von Kerman⟩ Here is the RO changelog about variance, v14 https://github.com/KSP-RO/RealismOverhaul/releases?page=2
<queqiao-> ⟨RurouniDonut⟩ thanks1
<queqiao-> ⟨RurouniDonut⟩ * thanks!
<queqiao-> ⟨von Kerman⟩ hmm, it's not here. It's in Real Fuels changelog.
<queqiao-> ⟨von Kerman⟩ Burns are not risky if you look at dV stats in Mechjeb, and nowhere else. Mechjeb takes into account variance and residuals (also new) and gives the most pessimistic forecast. Every other tool shows garbage, don't trust KER and stock dV.
<queqiao-> ⟨von Kerman⟩ However, burn timing will vary and can really differ from what Principia expects.
<queqiao-> ⟨von Kerman⟩ hmm, it's not there. It's in Real Fuels changelog.
<queqiao-> ⟨RurouniDonut⟩ Interesting
<queqiao-> ⟨RurouniDonut⟩ i gotta catch up on these changelogs
<queqiao-> ⟨RurouniDonut⟩ I imagine people have already done KOS scripts that take all that into account now
<queqiao-> ⟨von Kerman⟩ Indeed
<queqiao-> ⟨von Kerman⟩ In fact all you need to do is forget about variance, spool up and timing given by principia, and count the actual dV expended
<queqiao-> ⟨RurouniDonut⟩ gotcha
<queqiao-> ⟨RurouniDonut⟩ I typically used better time warp to slow down time and just eyeball if it matched the planned trajectory lol
<queqiao-> ⟨von Kerman⟩ This should also work for manual burns
<queqiao-> ⟨RurouniDonut⟩ gotcha, so even though mechjeb takes into account delta v wise it cant do it for executing nodes?
<queqiao-> ⟨von Kerman⟩ I suppose it's just not updated for this
<queqiao-> ⟨von Kerman⟩ These things are RP1 specific, mechjeb isn't
<queqiao-> ⟨RurouniDonut⟩ gotcha
<queqiao-> ⟨RurouniDonut⟩ guess ill just stick to kos scripts then, was just thinking it would be a useful thing if it did work with mechjeb haha
<queqiao-> ⟨von Kerman⟩ I use kOS for burns
<queqiao-> ⟨RurouniDonut⟩ gotcha, ill just use kOS scripts. Hopefully some of them will be easy to use for multiple vessals
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<_whitenotifier-1f03> [Principia] pleroy opened pull request #3315: Resolution of linear systems - https://github.com/mockingbirdnest/Principia/pull/3315
<queqiao-> ⟨Builderbast⟩ ⟪von Kerman⟫ I use kOS for burns ⮪ Sorry for ping, but are you maybe willing to share that script? Ive been eyeballing it, with only moderate succes
<queqiao-> ⟨von Kerman⟩ The script is in one of my messages here, need to find it
<queqiao-> ⟨von Kerman⟩ Cant copy the link on the phone. Look in messages from January 09
<queqiao-> ⟨Builderbast⟩ Found it, thanks!