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…
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<queqiao-> ⟨experimentalshells⟩ hmm is the bridge up
<queqiao-> ⟨(ᴇxᴘᴇʀɪᴍᴇɴᴛᴀʟshells)⟩ bridge is up
<queqiao-> ⟨Soviet Onion⟩ 🌉
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<queqiao-> ⟨egg⟩ yeah it went down earlier, but it is back up
<queqiao-> ⟨Infernal⟩ which reference frame is best to use to try to get into geostationary orbit?
<queqiao-> ⟨Soviet Onion⟩ geocentric one
<queqiao-> ⟨Soviet Onion⟩ I think
<queqiao-> ⟨egg⟩ ECEF is useful to look at the geostationariness
<queqiao-> ⟨egg⟩ (because this is the reference frame wherein the surface, the thing with respect to which you are stationary, does not move)
<queqiao-> ⟨Soviet Onion⟩ mmm, for most orbits around Earth, earth centred is the most helpful, I suppose ?
<queqiao-> ⟨egg⟩ (in general, if you care about a thing, you want a reference frame where that thing does not move)
<queqiao-> ⟨egg⟩ ⟪Soviet Onion⟫ mmm, for most orbits around Earth, […] ⮪ there are three different earth-centred reference frames.
<queqiao-> ⟨Soviet Onion⟩ ⟪egg⟫ there are three different earth-centred […] ⮪ 😳
<queqiao-> of course there are
<queqiao-> ⟨Soviet Onion⟩ I should learn about all frames then
<queqiao-> ⟨Stonesmile⟩ They are all centred on Earth; one doesn't rotate, one rotates once a day and one rotates once a year
<_whitenotifier-653e> [Principia] eggrobin commented on issue #3310: Modularization - https://github.com/mockingbirdnest/Principia/issues/3310#issuecomment-1025830003
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<queqiao-> ⟨egg⟩ Al2Me6 how are the Analects of Sarbian coming along?
<queqiao-> ⟨Al2Me6⟩ Ah, that.
<queqiao-> Haven't had must free time recently, and likely won't for the rest of this semester...
<queqiao-> Not much more progress has been made since I last showed it, unfortunately.
<queqiao-> ⟨Al2Me6⟩ Anything in particular that you want to see?
<queqiao-> ⟨egg⟩ also, wait, why am I in this channel and not devtalk 🙃
<queqiao-> ⟨egg⟩ +🌑
<raptop> . o O (No, the *other* Chandra)
<queqiao-> ⟨egg⟩ whose name shows up as हरीशचंद्‌र rather than हरीशचंद्र in the UI; blame Unity.
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<raptop> It's all sanskrit derivatives to me =/
<queqiao-> ⟨Soviet Onion⟩ Hmm, the name is Harisha-Chandra 👀
<queqiao-> ⟨Soviet Onion⟩ Nice
<queqiao-> ⟨Soviet Onion⟩ ⟪egg⟫ whose name shows up as हरीशचंद्‌र […] ⮪ Is there any particular reason for this, btw ?
<queqiao-> ⟨sichelgaita⟩ 🇦🇷 gets the first download
<queqiao-> ⟨egg⟩ ⟪Soviet Onion⟫ Is there any particular reason for […] ⮪ Unity is terrible at text?
<queqiao-> ⟨egg⟩ See also بوژگانی being rendered left-to-right
<queqiao-> ⟨Soviet Onion⟩ Understandable 👍
<raptop> egg: the Forbidden Daddy problem?
<queqiao-> ⟨Paculino (ŝi/ri/she/they)⟩ .shpylg ykcaw naht elbigel erom si txet noitcerid-esrever tsael ta ,lleW
* raptop pokes Paculino in the Byte Order Mark
<queqiao-> ⟨Infernal⟩ how do I make sure to launch in plane with the moon on principia? since apparently using PVG doesn't seem to work
<queqiao-> ⟨Al2Me6⟩ Are you at the Cape?
<queqiao-> ⟨von Kerman⟩ By starting at Kourou. At the Cape you don't
<queqiao-> ⟨von Kerman⟩ Or maybe you are not trying to match the inclination, just the LAN?
<raptop> 🥖🥖🥖
<queqiao-> ⟨Infernal⟩ im at cape
<raptop> The Moon is almost never at a high enough inclination for an in-plane transfer from KSC, hence why Kourou is recommended for beginners
<queqiao-> ⟨Infernal⟩ I dont even have a launch pad there
<queqiao-> ⟨von Kerman⟩ So what's the problem? Don't launch in the plane of the Moon
<queqiao-> ⟨von Kerman⟩ You will need some way to determine the correct launch window though
<queqiao-> ⟨Infernal⟩ how am I supposed to get to the moon from cape then?
<queqiao-> ⟨von Kerman⟩ from the cape, or from baikonur, or from the north/south pole, the easiest and most understandable way imho is as follows
<queqiao-> ⟨von Kerman⟩ launch into polar orbit
<queqiao-> ⟨Al2Me6⟩ ⟪Infernal⟫ how am I supposed to get to the moon […] ⮪ Read the pins?
<queqiao-> ⟨von Kerman⟩ try to catch the Moon when it's at the node
<queqiao-> ⟨von Kerman⟩ now it would be about the correct time to launch to polar orbit, if the KSC is right on top (time of day)
<queqiao-> ⟨von Kerman⟩ or right in front of you, how to say it? you need the polar orbit of your probe to intersect the Moon's at its node
<queqiao-> ⟨von Kerman⟩ so when the Moon comes to the node, the probe also will, and they meet
<queqiao-> ⟨von Kerman⟩ and to make sure you don't launch too late, I find it best to launch some days in advance and wait in parking orbit, whis is obviously not optimal (need deep space avionics) but easy
<queqiao-> ⟨von Kerman⟩ * And to make sure you don't launch too late, I find it best to launch some days in advance and wait in parking orbit, whis is obviously not optimal (need deep space avionics) but easy.
<queqiao-> ⟨von Kerman⟩ So when the Moon comes to the node, the probe also will, and they meet.
<queqiao-> ⟨von Kerman⟩ Or right in front of you, how to say it? you need the polar orbit of your probe to intersect the Moon's at its node.
<queqiao-> ⟨von Kerman⟩ Now it would be about the correct time to launch to polar orbit, if the KSC is right on top (time of day).
<queqiao-> ⟨von Kerman⟩ Try to catch the Moon when it's at the node:
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<queqiao-> ⟨expanders are superior⟩ try one of the kos scripts floating around
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<queqiao-> ⟨Infernal⟩ i dont have kos installed
<queqiao-> ⟨Infernal⟩ is there a way to check what inclination your flight plan is going to be?
<queqiao-> ⟨von Kerman⟩ you always launch into a specific inclination...
<queqiao-> ⟨von Kerman⟩ or do you mean principia flight plan? there is the button to "analyze final orbit"
<queqiao-> ⟨von Kerman⟩ +in flight plan
<queqiao-> ⟨Infernal⟩ i meant in principia flight plan, and thanks
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<queqiao-> ⟨RurouniDonut⟩ Oh my god Principia devs are amazing
<queqiao-> ⟨RurouniDonut⟩ That new update looks sick
<queqiao-> ⟨RurouniDonut⟩ Time to get back into KSP
<queqiao-> ⟨siimav⟩ Why isn't there a link to the Principia repo in the channel description or pinned messages?
<raptop> It might be worth putting on the IRC side
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