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-> ⟨aebestach⟩ ⟪nazfib⟫ I'd take a closer look at the units. […] ⮪ This is what I calculated using Earth values, and this orbit has been verified to be a sun-synchronous orbit. However, it is strange that the same method does not work on Kerbin.
<queqiao-> ⟨Quadrupole🇵🇸🇸🇾🇨🇺⟩ Dumb question, did you factor in the fact that one Kerbin day is only six hours?
<queqiao-> ⟨aebestach⟩ ⟪Quadrupole🇵🇸🇸🇾🇨🇺⟫ Dumb question, did you factor in the […] ⮪ I did take that into account, but the time for a 200km orbit is only 2392s (=0.6644h).
<queqiao-> ⟨aebestach⟩ Maybe it’s a problem caused by me setting the orbit directly with ‘ALT+F12’?
<queqiao-> ⟨steinsgate0000⟩ wait guys can i use mj with principia?
<queqiao-> ⟨the rocket science kid⟩ ⟪steinsgate0000⟫ wait guys can i use mj with principia? ⮪ yes but auto manuever node plotting is no longer a thing (auto execute works though, just press show on nav all and click the correct button in MJ)
<queqiao-> ⟨aebestach⟩ This is what I calculated using Earth […] ⮪ In RSS, I randomly entered three sets of data, derived the corresponding inclination using the formula, and directly filled in the orbit after debugging. In the end, the trajectory analysis results given by Principia were all sun-synchronous orbits.
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<queqiao-> ⟨Benji⟩ Catnews: I'm about halfway through Haruki Murakami's bibliography and I think he loves cats.
<raptop> hrm, was he influenced by Natsume Soseki?
<queqiao-> ⟨Benji⟩ I have no idea.
<queqiao-> Well, I think that name just popped up in a book (Kafka on the shore). While a character spends time in a library. Poetry writer?
<queqiao-> ⟨aebestach⟩ After many times of trying,including setting the "j2" parameters of the sun and repeatedly adjusting the satellite orbital altitude, inclination and eccentricity on the kerbin, I didn’t succeed. And "NodalPrecession" has not changed.
<queqiao-> ⟨aebestach⟩ Then suddenly a new idea came to my mind. I copy the "geopotential_row" of the Earth part in the "real_solar_system/gravity_model.cfg" file to the relevant configuration of kerbin. The final trajectory result is the sun synchronous orbit, and "NodalPrecession = 0.85°/d".
<queqiao-> ⟨aebestach⟩ Although this step has been successful in entering the sun-synchronous orbit, I wonder if this means that setting "j2" parameters is useless or unnecessary and can only be achieved by configuring "geopotential_row" for the stock planet?
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<queqiao-> ⟨Damien⟩ egg
<queqiao-> ⟨vickjhhh⟩ Has anyone managed to get Principia to work on a Apple Silicon Mac? Every approach i've tried ends up with the following error. "tried loading dll at 'GameData/Principia/Linux64/principia.so', 'GameData/Principia/MacOS64/principia.so'. Note that libc++abi1-8 and libc++1-8 or later (Linux) or Sierra or later (MacOS) are required." I have the latest OS insalled on an M1 Pro.
<queqiao-> ⟨Al₂Me₆⟩ rnlahaye might have advice for you.
<queqiao-> ⟨vickjhhh⟩ ⟪Al₂Me₆⟫ rnlahaye (@_discord_690719589964840991:m[…] ⮪ ty
<queqiao-> ⟨rnlahaye⟩ ⟪vickjhhh⟫ Has anyone managed to get Principia to […] ⮪ Yes, I run Principia on Apple silicon. I’ll see if I can reproduce this—I suspect it is because of gatekeeper (in which case you would need to ok the binary)
<queqiao-> ⟨vickjhhh⟩ ⟪rnlahaye⟫ Yes, I run Principia on Apple silicon. […] ⮪ thanks for looking into it! much appreciated.
<queqiao-> ⟨vickjhhh⟩ ⟪rnlahaye⟫ Yes, I run Principia on Apple silicon. […] ⮪ gatekeeper did block CKAN (when i initially installed CKAN which i could then disable in systemd setting privacy & security). No obvious option to unblock Principia. I'm somewhat new to MAC OS
<queqiao-> ⟨vickjhhh⟩ ⟪rnlahaye⟫ Yes, I run Principia on Apple silicon. […] ⮪ one more datapoint, - i just tried turning gatekkpeper off globally via Termal command but the Principia error on loadup still persists.
<queqiao-> ⟨vickjhhh⟩ the Principia.so is gamedata/principia/MacOS64/principia folder. Yet, I notice this error log. EXC 14:07:26.432] DllNotFoundException: GameData/Principia/MacOS64/principia.so
<queqiao-> principia.ksp_plugin_adapter.Log.InitGoogleLogging () (at <e309117473074f6d8ceb9e8ecf743edb>:0)
<queqiao-> principia.ksp_plugin_adapter.Loader.LoadPrincipiaDllAndInitGoogleLogging () (at <e309117473074f6d8ceb9e8ecf743edb>:0)
<queqiao-> ⟨marmellata⟩ sorry to bother, there is a default setting that i can use in order to save memory?
<queqiao-> like "as default see 7d in the future" and not years?
<queqiao-> ⟨marmellata⟩ because sometimes it get painfully laggy
<queqiao-> ⟨test_account9540⟩ Delete all debris, set reasonable number of steps and tolerance when planning, delete asteroids from the game, what else?
<queqiao-> ⟨test_account9540⟩ As for seeing into the future, this completely depends on prediction and planning settings and only affects performance in the map screen anyway
<queqiao-> ⟨test_account9540⟩ Delete all debris, set reasonable […] ⮪ Also set history to length to 0.
<queqiao-> ⟨test_account9540⟩ -to
<queqiao-> ⟨marmellata⟩ reasonable number of steps
<queqiao-> history lenght.. ?
<queqiao-> ⟨test_account9540⟩ History length in the main principia window
<queqiao-> ⟨test_account9540⟩ Displaying 24d of history takes some resources
<queqiao-> ⟨marmellata⟩ but sometimes (i dont know why) it goes crazy and i can see like 2000000 orbits
<queqiao-> ⟨test_account9540⟩ I just sey history to 0 unless i really want to see it
<queqiao-> ⟨egg⟩ Because you asked for it in some fashion
<queqiao-> ⟨test_account9540⟩ * set
<queqiao-> ⟨marmellata⟩ OH i can set history to 0 but see the plan nonetheless
<queqiao-> ⟨test_account9540⟩ Then you have number os steps 1024 and tolerance 1
<queqiao-> ⟨test_account9540⟩ They are the default values, but they are never good
<queqiao-> ⟨test_account9540⟩ I can hardly imagine needing a precision of 1 meter. 10 is much better, 100 for really long plans
<queqiao-> ⟨marmellata⟩ ok... now i understand that value AHHA
<queqiao-> ⟨test_account9540⟩ 1024 steps is not enough. Usually 4096 or 16384 works.
<queqiao-> ⟨test_account9540⟩ Cant say i understand this value well but this is what works.
<queqiao-> ⟨marmellata⟩ from 1m to 10m is getting better
<queqiao-> ⟨marmellata⟩ and history 0 also, but i need to se orbit so i set that to the max of the manouver
<queqiao-> ⟨marmellata⟩ thanks mate
<queqiao-> ⟨test_account9540⟩ Surface reference frame
<queqiao-> ⟨test_account9540⟩ Maybe you need it for landing, but i would definitely switch history off here
<queqiao-> ⟨test_account9540⟩ Also you can use the declutter option to remove sun, pluto and other orbits
<queqiao-> ⟨marmellata⟩ im an idiot, i was preparing the manouver from the reference of the earth and not the moon
<queqiao-> ⟨marmellata⟩ why this manouver isnt visible n any way? i have set the timer for that point
<queqiao-> ⟨test_account9540⟩ Try pressing Rebase
<queqiao-> ⟨test_account9540⟩ The magenta line is the prediction, not the plan. The plan is not visible here at all
<queqiao-> ⟨test_account9540⟩ Also it might be that the maneuver is not visible zoomed in before it happens much earlier or much later
<queqiao-> ⟨test_account9540⟩ * earlier~or much later~
<queqiao-> ⟨test_account9540⟩ +when
<queqiao-> ⟨test_account9540⟩ wait, there is something badly wrong here
<queqiao-> ⟨test_account9540⟩ why does it say "coast in circular Earth orbit???"
<queqiao-> ⟨test_account9540⟩ well yes, press rebase
<queqiao-> ⟨marmellata⟩ ok now it counts and i can see the manouver... D:
<queqiao-> ⟨test_account9540⟩ rebase needs to be pressed before making any plan, after any adjustment to your orbit, like a TLI burn or even a small RCS correction
<queqiao-> ⟨marmellata⟩ oh, im sorry, as usual my bad D:
<queqiao-> ⟨vickjhhh⟩ ⟪sichelgaita⟫ https://github.com/mockingbirdnest/Princ[…] ⮪ I see - so that particular error log is Irrelevant to the main issue of the principia load error a bit later in the log. Thanks for sending that link.
<queqiao-> ⟨egg⟩ ⟪sichelgaita⟫ https://github.com/mockingbirdnest/Princ[…] ⮪ But this is DllNotFoundException, not BadImageFormatException.
<queqiao-> ⟨sichelgaita⟩ I am dumb.
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