raptop changed the topic of #principia to: READ THE FAQ: http://goo.gl/gMZF9H; The current version is Galois. We currently target 1.8.1, and 1.9.1. <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… | <egg> also 4e16 m * 2^-52 is uncomfortably large
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<discord->
Kitten Dispenser. — when doing moon shots from KSC, do you guys prefer to launch polar or into the standard 28.6 degree orbit?
<discord->
Kitten Dispenser. — i've never done a direct ascent but you basically have to do it polar when doing direct ascent, right?
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<discord->
lpg. — Direct ascent _from baikonur_ goes polar, because that's what puts the TLI burn at the "right place". pretty sure other latitudes will have different needs
<discord->
lpg. — I used to do polar because it's the first thing I figured out how to eyeball. now that I can eyeball due-east launches, it's clearly better
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<discord->
Sumguy. — Launch into the plane using mechjeb
<discord->
Kitten Dispenser. — doesn't work with principia
<discord->
Sumguy. — Oof
<discord->
Kitten Dispenser. — because the moon's plane isn't actually reachable from KSC IRL
<discord->
Sumguy. — How does it work with patched conics, then?
<raptop>
Generally you need a rolling release for the conics to stay near proper n-body
<discord->
Kitten Dispenser. — > Every 18.6 years, the angle between the Moon's orbit and Earth's equator reaches a maximum of 28°36′, the sum of Earth's equatorial tilt (23°27′) and the Moon's orbital inclination (5°09′) to the ecliptic. This is called major lunar standstill. Around this time, the Moon's declination will vary from −28°36′ to +28°36′. Conversely, 9.3 years later, the angle between the
<discord->
Kitten Dispenser. — Since waiting 18.6 years for a lunar launch window isn't exactly practical, NASA didn't fling Buzz and Neil into the Moon's plane
<discord->
Kitten Dispenser. — And launching into an inclination 10 degrees lower than the "minimum" would require a considerable amount of rocket
<discord->
Kitten Dispenser. — hope this explains it
<discord->
Sumguy. — Nice
<discord->
Butcher. — > when doing moon shots from KSC, do you guys prefer to launch polar or into the standard 28.6 degree orbit?
<discord->
Butcher. — @Kitten Dispenser neither
<discord->
Butcher. — I use a script to launch into a moon intercept orbit that is somewhere between those extremes.