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->
⟨Δv1㎧⟩ Yeah, I ended up going with one of […] ⮪ Behavior is much closer to what Butcher described at 60deg parking orbit. A much wider range of inclinations and periselenes are accessible.
<queqiao->
⟨Δv1㎧⟩ That's pretty interesting; I suppose in the future I'll go with higher-inclination orbits if I can't make midcourse corrections for some reason.
<Overloader>
Err i just installed principia imn stock and got this
<Overloader>
Error extending trajectory for Laythe. Error trying to fit a smooth polynomial to the trajectory. The approximation error jumped from +2.30409398201086163e-03 m to +8.35707941962133918e+03 m at time 2000-01-19T18:40:00,0000000000000000 (TT). The last position is {+2.82934834164262733e+10 m, +5.89477737293873444e+10 m, +3.18125881596913338e+08 m} an
<Overloader>
d the last velocity is {-3.61413289242418386e+03 m s^-1, -1.47439688429669945e+03 m s^-1, +9.66053147376071735e+01 m s^-1}. An apocalypse occurred and two celestials probably collided because your solar system is unstable.
<Overloader>
it appeared as soon as I was in orbit
<queqiao->
⟨test_account⟩ This new Parallax has so far broken RP1 high res install, proven incompatible with RP1 in general and now also breaks principia in stock...
<queqiao->
⟨egg⟩ ⟪test_account⟫ This new Parallax has so far broken RP1 […] ⮪ Nothing to do with the new release here. This has always been a known effect of Parallax; see the link I just posted.
<queqiao->
⟨Farrier⟩ I thought Parallax got included into RP-1 express install recently, but didn't try it myself. Did it break Principia also? Or I thought wrong?
<queqiao->
⟨egg⟩ Principia knows about RSS.
<queqiao->
⟨Farrier⟩ So Principia's compatibility with Parallax is exclusive to RSS? Nice selling point 🤔
<queqiao->
⟨egg⟩ Principia isn’t incompatible with Parallax, it’s just that Parallax counts as a solar system modification in the eyes of Principia, so you need to patch retrobop yourself. Please read the FAQ.
<queqiao->
⟨Stonesmile⟩ More specifically, Parallax depends on Kopernicus, and having that installed is what principia detects IIRC?
<queqiao->
⟨test_account⟩ RSS also depends on kopernicus, any system modification depends on it 🤔
<queqiao->
⟨egg⟩ ⟪Stonesmile⟫ More specifically, Parallax depends on […] ⮪ No, Principia detects actual changes, not mods. But the terrain height changes, and that’s one of the inputs of the fingerprint.
<queqiao->
⟨Stonesmile⟩ Oh, so Principia + Kopernicus only applies the stock retro-bop fix?
<queqiao->
⟨egg⟩ yeah, if you have Kopernicus doing nothing, we don’t care. Though I’d guess it’s quite rare that you would have Kopernicus for no reason.
<queqiao->
⟨egg⟩ (the idea is that if anything changes, you are on an install with other mods that can change the solar system, at which point they can fix the solar system however they want, and we don’t want to get in their way.)
<queqiao->
⟨Δv1㎧⟩ ⟪Butcher⟫ Δv1㎧ Can you give this a try when you […] ⮪ Might be a while since I have a busy schedule today but I’ll get around to it
Overloader has quit [Quit: webchat.esper.net]
<queqiao->
⟨Charon_S.⟩ Is it possible to add a Barycentric Reference Frame in Principia?
<queqiao->
⟨Δv1㎧⟩ That's pretty interesting; I suppose in […] ⮪ The one downside seems to be that lunar inclination depends so much on burn time it's hard to get an especially accurate lunar inclination from TLI alone. I'm sure there's a "sweet spot" parking orbit inclination which will need to be discovered with more testing.
<queqiao->
⟨Stonesmile⟩ ⟪Charon_S.⟫ Is it possible to add a Barycentric […] ⮪ That would be _technically_ possible, since it was in principia and has been removed. That also answers the question of if it _might_ be added
<queqiao->
⟨Δv1㎧⟩ By the way, what's up with the bots in this channel? Seems that some of them are non-bot users in disguise 🕵️.
<umbralraptop>
[angry beeping]
<queqiao->
⟨leudaimon⟩ that's the irc bridge
<queqiao->
⟨Δv1㎧⟩ Ah, I see.
<queqiao->
⟨Δv1㎧⟩ Is the bot PFP a mission patch, or is it referencing something else?
<queqiao->
⟨Stonesmile⟩ I would guess it's a BeiDou satellite
<umbralraptop>
Chang'E 4, (and its magpie bridge relay satellite)
* umbralraptop
pokes transliteration with a random corvid
<queqiao->
⟨Sumguy⟩ ⟪Stonesmile⟫ That would be *technically* possible, […] ⮪ Why was it removed? 🤔
<queqiao->
⟨Vlood⟩ ⟪Δv1㎧⟫ By the way, what's up with the bots in […] ⮪ Days since turing test last failed: 0
<umbralraptop>
Sumguy: Problems with figuring out when comets are on elliptical vs hyperbolic orbits?
<queqiao->
⟨Butcher⟩ Guess I'll need to debug it a bit more. My test setup doesn't have principia. :p
<queqiao->
⟨test_account⟩ I don't understand. I also used it from the Cape and it worked.
<queqiao->
⟨test_account⟩ Except I didn't use the warp button, I set a KAC alarm.
<queqiao->
⟨lpg⟩ the alarm woudn't notice the mod changing its mind, so that makes sesne
<queqiao->
⟨test_account⟩ Can it be that it works correctly in KSC but fails in flight?
<queqiao->
⟨Czechoslovakia⟩ Interesting thing to note: The change from true next window to fake next window happens on the same frame as the inclination going from positive to negative
<queqiao->
⟨lpg⟩ also makes sense. it's not "fake" windows, it just looks like it doesn't consider a window only a few hours away to be valid. inclination flips because it moves on to the next window, and I'd expect the two windows per day to have opposite signs
<queqiao->
⟨lpg⟩ actually scratch that, the nature of the due-east windows shouldn't have an impact on the 'launch _now_' inclination. so yes that's a clue
<queqiao->
⟨test_account⟩ Strange things happen when using warp in flight
<queqiao->
⟨test_account⟩ This does not look like two windows per day, which should be guaranteed (?)
<queqiao->
⟨test_account⟩ Though actually if the first window is today's second window, and the next one is tomorrow's first window, maybe it's OK
<queqiao->
⟨lpg⟩ it's _possible_ to only get one window (or for the two windows to be so close together they may as well be one) if the moon's inclination exactly matches the launch lattitude
<queqiao->
⟨test_account⟩ This is January 1951, wonder what is the inclination now
<queqiao->
⟨lpg⟩ (which is always true at the cape without principia, and sometimes true even with principia)
<queqiao->
⟨test_account⟩ +(with Principia)
<queqiao->
⟨lpg⟩ the cycle is ~18 years, and I think the position was more or less ideal for apollo 11, so 1951 might hit the spot
<queqiao->
⟨DRVeyl⟩ Yes, 1951 being the start of the game, and associated with "RSS teaches the wrong lesson because it picked a default start time to align the Cape with the moon" seems to be related.
<queqiao->
⟨DRVeyl⟩ Er, nevermind.
<queqiao->
⟨DRVeyl⟩ ~Yes, 1951 being the start of the game, and associated with "RSS teaches the wrong lesson because it picked a default start time to align the Cape with the moon" seems to be related.~
<queqiao->
⟨Butcher⟩ The addon has alternative handling for low inclination launch sites, since easterly launches are much rarer there, you actually get the next minima in the inclination graph.