UmbralRaptor changed the topic of #principia to: READ THE FAQ: http://goo.gl/gMZF9H; The current version is del Ferro. We currently target 1.5.1, 1.6.1, and 1.7.x. <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…
<discord->
egg. — and would have been fixed earlier if people would be so kind as to report bugs when they encounter them instead of just thinking to themselves "I guess this causes crashes" https://forum.kerbalspaceprogram.com/index.php?/topic/162200-wip151-161-17x-principia%E2%80%94version-del-ferro-released-2019-08-30%E2%80%94n-body-and-extended-body-gravitation-axial-tilt/page/56/&tab=comments#comment-3662924 (edite
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[Principia] eggrobin opened pull request #2335: A class that asynchronously analyses orbits - https://git.io/JesEV
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[Principia] eggrobin edited pull request #2335: A class that asynchronously analyses orbits - https://git.io/JesEV
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[Principia] eggrobin opened pull request #2336: Minor cleanups to the lunar eclipse test - https://git.io/JesEA
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hudson. — is there a way to use mechjeb to auto complete a burn?
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hudson. — a burn planned in the principia flight planner
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EstrelaGaliza. — DONT OPEN PRINCIPIA AGAIN WHILE BURNING
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hudson. — oh woah ok
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EstrelaGaliza. — I use to prefer RT console to execute than kind of burns but MJ is ok
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hudson. — not using RT on this one
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EstrelaGaliza. — then MJ is fone
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EstrelaGaliza. — will be here for a while, tell me if you have any problem
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hudson. — thanks i appreicate the help... i've got my tracking station upgraded to level 3. is there any benefit in upgrading the mission control to enable flight planning?
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EstrelaGaliza. — not sure, just came back to RP1 after a while without playing and didnt remember those kind of career stuff
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hudson. — ok.. upgrading tracking station to level 3 unlocked the "show manuever node in navball" also the mechjeb manuever planner
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hudson. — the upgrade of the mission control costs $200k and it enabled flight planning, but i got flight planning already it seems
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EstrelaGaliza. — so you probably need it to use MJ to principia burns
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EstrelaGaliza. — planning? for patched conics?
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EstrelaGaliza. — maybe only for principia, not patched conics so not MJ
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EstrelaGaliza. — so you probably need it to use MJ for principia burns (edited)
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hudson. — idk, is there any reason to do anything with patched conics when using principia? this is my first time with prinicipia so not sure what i'm doing
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EstrelaGaliza. — yep
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EstrelaGaliza. — at LEO i always ignore principia (unless i need milimetrical precision, for example GPS net)
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EstrelaGaliza. — MJ data is good enought and you will realiza that patched conics expected trajectory match with principia expected trajectory
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EstrelaGaliza. — MJ data is good enough and you will realiza that patched conics expected trajectory match with principia expected trajectory (edited)
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EstrelaGaliza. — MJ data is good enough and you will realize that patched conics expected trajectory match with principia expected trajectory (edited)
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hudson. — ok so flight planning would probably be useful then
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EstrelaGaliza. — yep
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hudson. — i've been trying for days to even get a moon fly-by
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EstrelaGaliza. — you can tell MJ to circularize and these kind of maneuvers even using principia, it will work fine
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hudson. — i can get a flight plan but i can't ever burn accurately enough to make it happen
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hudson. — ok i see
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EstrelaGaliza. — read carefully principia wiki, will help you a lot
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EstrelaGaliza. — it used to happen to me time ago
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hudson. — oh i have believe me lol... i still can't grasp what a barycentric plotting frame is
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EstrelaGaliza. — it has a description below xD
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hudson. — lol i know i don't understand
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neph. — To get to the moon, hop into a 150 km circularish orbit, any inclination, such that you've got a node in the Earth-centered Luna-aligned reference frame that is about 30-50° counterclockwise of the moon. Then burn around 3130-3150 directly prograde near the opposite node and you'll get to the moon
<discord->
neph. — To get to the moon, hop into a 150 km circularish orbit, any inclination, such that you've got a node that is about 30-50° counterclockwise of the moon in the Earth-centered Luna-aligned reference frame. Then burn around 3130-3150 directly prograde near the opposite node and you'll get to the moon (edited)
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hudson. — thanks for the tips there
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<discord->
PataSolar. — is KSP TOT useless with Principia installed?
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EstrelaGaliza. — @PataSolar no
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EstrelaGaliza. — right now im using KSPTOT for almost all my sat contracts
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PataSolar. — re: @hudson @EstrelaGaliza there must have been a change with recent updates of Principia re: track station and Principia's functions. I'm in 1.3.1 RP and have not upgraded the tracking station at all and do not seem to be missing anything. So I'm guessing it's different for you folk? @hudson ?
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EstrelaGaliza. — the only problem to care about is the ''planet on rails'' thing
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PataSolar. — @EstrelaGaliza oh cool! is there anything I should know?
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PataSolar. — okay
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PataSolar. — I gotta learn TOT anyway, haven't even used it. just wondered if it was worth it. looks fun and complicated
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EstrelaGaliza. — @PataSolar im using 1.6.1 right now
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PataSolar. — I can put the node on navball, target other vessels and bodies, all that stuff
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PataSolar. — yeah must be a recent hting
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PataSolar. — thing
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EstrelaGaliza. — @PataSolar and yes, lots of things,
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EstrelaGaliza. — It is better to go slowly and take it easy. You can see the examples of the tutorials, they are very didactic. With practice it becomes intuitive
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hudson. — yeah i'm on 1.6.1
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EstrelaGaliza. — but if you are using principia u will need to generate a new ''bodyes file'' cause KSPTOT planets position become inacurate with time repect to principia
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EstrelaGaliza. — but if you are using principia u will need to generate a new ''bodyes file'' for every mission cause KSPTOT planets position become inacurate with time repect to principia (edited)
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EstrelaGaliza. — also interplanetary missions are a headache duo to axial rotation, but is good to plan launches anyway
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EstrelaGaliza. — but if you are using principia u will need to generate a new ''bodies file'' for every mission cause KSPTOT planets position become inacurate with time repect to principia (edited)
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Acer_Saccharum. — you can't properly use the KSP TOT if you're using principia, since the TOT uses a patched conics approximation
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Acer_Saccharum. — at best the TOT will give you 'close' solutions
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Acer_Saccharum. — also using patched conics in LEO isn't the best idea either, since earth's oblateness makes your orbit precess rather quickly
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EstrelaGaliza. — @Acer_Saccharum there are a new kind of coast at ksptot (N-BODY COAST) which is perfectly accurate. again, the problem are just the planets positions (cause you can use nbody coast on them). But you can change planet for vessel position, and then you can aply n-body coast to the planet-vessel position, and everything will be fine
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Acer_Saccharum. — well TIL I guess, I had no idea the TOT could do n-body coasts
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Acer_Saccharum. — can the KSP TOT take n-body planet trajectories into account?
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EstrelaGaliza. — But you can change planet for vessel position, and then you can aply n-body coast to the planet-vessel position, and everything will be fine
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Acer_Saccharum. — about the nodal precession statement I made, expect your orbit's ascending/descending nodes to precess by a couple degrees per day for orbits of inclinations between ~20 and ~70 degrees
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EstrelaGaliza. — This is an example of my most common satellite contract using Altair solid rockets.
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EstrelaGaliza. — Aiming for a 900x900 orbit:
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EstrelaGaliza. — -not using n-body coast
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EstrelaGaliza. — -not using finite duration burns
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EstrelaGaliza. — -and using spinning upper stage solid rocket, which isnt the most accurate thing to make a maneuver
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EstrelaGaliza. —
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EstrelaGaliza. — Even with those inaccuracies, not due to any problem between ksptot and principia and all easily solvable i have just get an accurate 893x890 orbit
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EstrelaGaliza. — I only used importet ksptot maneuver nodes at this mission
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EstrelaGaliza. — I only used imported ksptot maneuver nodes at this mission (edited)
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<discord->
EstrelaGaliza. — This is an example of my most common satellite contract using Altair solid rockets.
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EstrelaGaliza. — Aiming for a 900x900 orbit:
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EstrelaGaliza. — -not using n-body coast
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EstrelaGaliza. — -not using finite duration burns
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EstrelaGaliza. — -and using spinning upper stage solid rocket, which isnt the most accurate thing to make a maneuver
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EstrelaGaliza. —
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EstrelaGaliza. — Even with those inaccuracies, not due to any problem between ksptot and principia and all easily solvable i have just get an accurate 893x880 orbit (edited)
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<Guest91535>
Hi can I ask for help if I've read the FAQ?
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<UmbralRaptop>
… yes, some of us might be slow to respond as it's still night in the US
<Guest91535>
it's night for me too, I'm still getting an error that principia wont start
<Guest91535>
I installed C++ redist twice because I never know if I need the x86 or x64 and now I have both presumably
<Guest91535>
Oh well I can't get the message to pop up now, and I do sleep like a normal person, so I'll chat with you guys later
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<discord->
Kenira. — man stable comsat networks are haarrrrddd. trying to put up a 4 sat constellation in MEO and i'd love some automated features for satellite stationkeeping / syncing up satellites to not have any drift between each other
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<BenB123>
Hi can I ask for help this afternoon? I was on late last night
<BenB123>
Not trying to spam, but I get the following error message:
<BenB123>
The Principia DLL failed to load.
<BenB123>
An unknown error occurred; detected OS Microsoft Windows NT 10.0.18362.0 64-bit; tried loading dll at 'GameData\Principia\x64\principia.dll'. Note that the Microsoft Visual C++ 2015-2019 Redistributable (x86) - 14.22.27821 are required.
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<UmbralRaptop>
The error suggests that the redistributable was not properly installed
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[Principia] pleroy synchronize pull request #2333: Document what we learned so far regarding Celledoni's paper - https://git.io/Jesvy