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…
UmbralRaptor has joined #principia
Raptop has quit [Ping timeout: 189 seconds]
UmbralRaptor has quit [Ping timeout: 189 seconds]
queqiao- has quit [Remote host closed the connection]
UmbralRaptor has joined #principia
queqiao- has joined #principia
<queqiao->
⟨nvv⟩ is there a way to see a body's orbit information using principia?
_whitelogger has joined #principia
<queqiao->
⟨Butcher⟩ I don't think so, what information do you need?
_whitelogger has joined #principia
_whitelogger has joined #principia
_whitelogger has joined #principia
<queqiao->
⟨Featherless Biped⟩ ⟪nvv⟫ is there a way to see a body's orbit […] ⮪ I've always just looked up the IRL values, I don't know of any way to see it in game
<queqiao->
⟨test_account⟩ And what are the IRL values for the Moon, where can I look up them 🤔
<queqiao->
⟨Butcher⟩ ⟪test_account⟫ And what are the IRL values for the […] ⮪ Have you tried the Internet?
<queqiao->
⟨test_account⟩ Yes, but it's unhelpful, because inclination fluctuates...
<queqiao->
⟨Butcher⟩ You can get the mean inclination and the variance online.
<queqiao->
⟨Butcher⟩ What more do you need?
<queqiao->
⟨test_account⟩ Well, of course, most information about the orbit is available
<queqiao->
⟨Butcher⟩ So what's the issue?
<queqiao->
⟨Standecco⟩ are you in EE?
<queqiao->
⟨Vlood⟩ 3K3 is a bit of a dead giveaway
<queqiao->
⟨Vlood⟩ That, or they've seen a resistor before
<queqiao->
⟨Standecco⟩ yeah it's a gigantic flasiharrow
<queqiao->
⟨Standecco⟩ * flashing arrow sign
<queqiao->
⟨Vlood⟩ That and using j
<queqiao->
⟨Butcher⟩ ⟪Vlood⟫ That and using j ⮪ Filth. _i_ is the only way.
<queqiao->
⟨Vlood⟩ J is superior and i _will_ die on this hill
<queqiao->
⟨Standecco⟩ the EE quaternions must be j k l
<queqiao->
⟨Vlood⟩ One imaginary part is quite enough, thank you very mucj
<queqiao->
⟨Vlood⟩ * much
<queqiao->
⟨Vlood⟩ (it's complicated enough as it is)
<queqiao->
⟨Soviet Onion⟩ inb4 octonions and sedenions 😏
<queqiao->
⟨Standecco⟩ phasors and complex exponentials are the best
<queqiao->
⟨Soviet Onion⟩ 16 dimensions
<queqiao->
⟨Vlood⟩ ⟪Soviet Onion⟫ inb4 octonions and sedenions 😏 ⮪ Exorcise the theoretical mathematician
<queqiao->
⟨Standecco⟩ it gets slightly complicated only when there's vector fields involved
<queqiao->
⟨Standecco⟩ but it's the antenna guys' job to deal with that
<queqiao->
⟨Vlood⟩ Telcomms is blackest of magics
<queqiao->
⟨Vlood⟩ But yeah, phasors make RLC stuff quite nice to visualise and understand
<queqiao->
⟨Standecco⟩ very personal opinion but transforms are the best mathematical tool
<queqiao->
⟨Vlood⟩ I would agree only with the caveat of not ever having to compute them by hand ever again
<queqiao->
⟨Standecco⟩ it is weird enough that in education we were more focused on manually calculating transform of things rather than studying their properties and really understanding them, when the former is a skill that I've _never_ had to use
<queqiao->
⟨Standecco⟩ otoh knowing how fourier transforms are related to waves (especially with sound) helped a lot in quantum mechanics
<queqiao->
⟨Standecco⟩ * the practical mental image of sounds)
<queqiao->
⟨Vlood⟩ ⟪Standecco⟫ it is weird enough that in education we […] ⮪ Well, that works relatively well for lower mathematical concepts, but it just doesn't transfer well to opaque stuff like transforms
<queqiao->
⟨Vlood⟩ Probably because computing them by hand is so much pain
<queqiao->
⟨Standecco⟩ many of our exercises were based on exploiting mathematical properties of the FT to compute them, but they were useless nonetheless
<queqiao->
⟨Standecco⟩ handling integrals and derivatives is common enough that learning it mechanically makes sense, but just as we mostly skipped learning the algorithmic methods of circuit theory because if you _really_ had to use them, you'd get a computer to do it for you, practically learning to calculate transforms isn't terribly useful
<queqiao->
⟨Vlood⟩ You guys skipped manual circuit analysis? Lucky you
<queqiao->
⟨Standecco⟩ well we briefly talked about nodal analysis and mostly used the "just wing it" method
<queqiao->
⟨Vlood⟩ I have to perform that on 10s of transistors small op-amp schematics :P
<queqiao->
⟨Vlood⟩ ⟪Standecco⟫ well we briefly talked about nodal […] ⮪ Lol, i've yet to actually properly use nodal analysis or the cyclic current method, kirchhoff II > all
<queqiao->
⟨Vlood⟩ * loop
<queqiao->
⟨Standecco⟩ I discovered halfway through the course that you could use the Millman theorem on 99.9% of the circuits that we encountered, so I just used that
<queqiao->
⟨Standecco⟩ unfortunately the skill _didn't_ transfer to when we started using transistors everywhere
<queqiao->
⟨Standecco⟩ I discovered halfway through the course that you could brute force the Millman theorem on 99.9% of the circuits that we encountered, so I just used that
<queqiao->
⟨Vlood⟩ I've seen millman, i've never found a use for it in actial circuits
<queqiao->
⟨Vlood⟩ * actual circuits either
<queqiao->
⟨Standecco⟩ it's the best if you never look at real circuits, where it's useless
<queqiao->
⟨Stonesmile⟩ Ooh, nearest neighbour! Which algorithm? 🤔
<queqiao->
⟨sichelgaita⟩ PCP tree.
<queqiao->
⟨bajtec⟩ ⟪Standecco⟫ are you in EE? ⮪ EE ? 🙂
<queqiao->
⟨bajtec⟩ Ah ok , Elelctronics something ? - I had that at the universioty long time ago, and well i design some circuit boards from time to time if that is what you meant 🙂
<queqiao->
⟨Al₂Me₆⟩ Electrical engineering, yes
<queqiao->
⟨bajtec⟩ for whatever reason 9mybe common classes) this is heavily used in IT 😉
<queqiao->
⟨bajtec⟩ i'm currently fighting with crazy guidance computer, for whatever reason it turns my lunar lifter almost orizontaly after inital 100m ish climb
<queqiao->
⟨nvv⟩ ⟪Butcher⟫ I don't think so, what information do […] ⮪ Things such as inclination. Is there some universal website for this?
<queqiao->
⟨pEdro⟩ ⟪nvv⟫ Things such as inclination. Is there […] ⮪ wikipedia has most orbital elements needed
<queqiao->
⟨pEdro⟩ that JPL website where the RSS devs got data from should also work and is better, but i forgot the name of it
<queqiao->
⟨Al₂Me₆⟩ Uncheck this. It's bad for performance and generates huge log files.
<queqiao->
⟨Al₂Me₆⟩ (It might be advisable to look at the size of your glog folder)
<queqiao->
⟨bajtec⟩ ok 🙂 - last time log was around 25GB
<queqiao->
⟨bajtec⟩ hmm while doing TLI i'm not able to make high velocity impact... principia says it will be at 8xx ish
<queqiao->
⟨bajtec⟩ hmm and i need only 30xx dv- maybe because my initial orbit is higher
<queqiao->
⟨egg⟩ (why do you even have the logging settings open? Are you trying to report a bug?)
<queqiao->
⟨bajtec⟩ i have no idea 🙂
<queqiao->
⟨bajtec⟩ unchecked it - in diffeernt modsets it was not unncommon to reach such log sizes full of exceptions
<queqiao->
⟨bajtec⟩ i tried to report but no one cared 😄
<queqiao->
⟨bajtec⟩ I'm not sure i can do both impactor and flyby AND orbital in one mission using TLI vehicle as impactor - it needs different trajectory
<queqiao->
⟨Zavian⟩ Normally to do that either the flyby/orbiter or the TLI stage needs to make a course correction after stage sep.
<queqiao->
⟨bajtec⟩ orbiter has that capability though i have around 1k3 dv on it only
<queqiao->
⟨bajtec⟩ ok i found possible configuration 🙂
<queqiao->
⟨bajtec⟩ btw- where is execute principia manevuer ?