egg changed the topic of #principia to: READ THE FAQ: http://goo.gl/gMZF9H; The current version is Гельфонд. We currently target 1.8.1, 1.9.1, and 1.10.1. <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
<_whitenotifier-8975> [Principia] eggrobin reviewed pull request #2857 commit - https://git.io/JtvtP
<_whitenotifier-8975> [Principia] eggrobin reviewed pull request #2857 commit - https://git.io/JLjo4
<_whitenotifier-8975> [Principia] eggrobin reviewed pull request #2857 commit - https://git.io/JLjo4
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<discord-> A​shnoom. —
<discord-> A​shnoom. — Would it be possible for some smart person who has done this before to add a few images, just like is done for 'going to the mun' tutorial?
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<discord-> D​elta II. — I'm struggling to plot a flight plan maneuver to the moon, any tips?
<discord-> D​amien (it/that). — that's for Mun not moon but it gives an idea of reference frames
<discord-> D​elta II. — ok
<discord-> D​amien (it/that). — then you just need to work out issues relating to the moon and its inclination etc
<discord-> D​elta II. — im already in a matching inclination orbit with the m
<discord-> D​elta II. — im already in a matching inclination orbit with the moon (edited)
<discord-> D​amien (it/that). — brilliant. just follow the mun tutorial then
<discord-> D​elta II. — for some reason i cannot see an orbit prediction ro any indication that i will get to the moon
<discord-> D​elta II. — for some reason i cannot see an orbit prediction or any indication that i will get to the moon (edited)
<discord-> D​elta II. — for some reason i cannot see an orbit prediction or any indication that i'm on ap moon trajectorie (edited)
<discord-> D​amien (it/that). — I imagine your maneuver isn't set long enough in time
<discord-> A​shnoom. — increase the planning length
<discord-> D​amien (it/that). — ^
<discord-> D​elta II. — ok
<discord-> D​elta II. — so is this a moon bound trajectorie?
<discord-> D​elta II. — how woudl i see my expected moon trajectorie?
<discord-> D​elta II. — ima go for it
<discord-> l​pg. — learn about reference frames <https://github.com/mockingbirdnest/Principia/wiki/Concepts>
<discord-> D​elta II. — ok
<discord-> D​elta II. — i did it
<discord-> D​amien (it/that). — it looks like it, yeah. view that in moon centred inertial or moon centered earth fixed
<discord-> D​elta II. — i got it
<discord-> D​elta II. — i have a moon trajectorie
<discord-> D​amien (it/that). — you generally pick the frame based on the part of the trajectory you're playing with. to see your moon flyby you use MCI, to see the bit between earth and moon you used MCEF, etc
<discord-> D​amien (it/that). — you generally pick the frame based on the part of the trajectory you're playing with. to see your moon flyby you use MCI, to see the bit between earth and moon you use MCEF, etc (edited)
<discord-> D​amien (it/that). — using the 'wrong' frame can make things look really weird
<discord-> D​amien (it/that). — looking at the solar system in SCI looks normal. looking at it in ECI looks messed up
<discord-> D​elta II. — im burning now
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<discord-> D​elta II. — welp, i messed up somewhere
<discord-> D​amien (it/that). — you used full yeet, you were only meant to use little yeet
<discord-> D​elta II. — whats the best way to execute a flight plan?
<discord-> D​elta II. — this is rough
<discord-> D​amien (it/that). — don't use that. use the countdown in the principia flight planner window
<discord-> D​elta II. — should i still use the stock thing for orientation?
<discord-> D​amien (it/that). — what stock thing?
<discord-> D​elta II. — like the stock maneuver node
<discord-> D​elta II. — for orientating
<discord-> D​amien (it/that). — you mean on the navball?
<discord-> D​elta II. — yes
<discord-> D​amien (it/that). — yes
<discord-> D​elta II. — ok
<discord-> D​elta II. — but use principia burn time?
<discord-> D​amien (it/that). — yes because principia models changing mass during burn, and also the duration of the burn. stock assume 100% of DV is applied at the exact instant of the node. that's why in stock you generally split it (start 30s before node for a 1m burn)
<discord-> D​amien (it/that). — yes because principia models changing mass during burn, and also the duration of the burn. stock assumes 100% of DV is applied at the exact instant of the node. that's why in stock you generally split it (start 30s before node for a 1m burn) (edited)
<discord-> D​elta II. — yeah
<discord-> D​elta II. — how will i know whne to shutdown?
<discord-> D​elta II. — how will i know when to shutdown? (edited)
<discord-> D​amien (it/that). — countdown is zero, or to be more precise, watch your trajectory line vs your flight plan line
<discord-> D​elta II. — ok
<discord-> D​amien (it/that). — it will never be 100% perfect because of spool up time, human inaccuracy etc
<discord-> D​elta II. — 30 seconds till ignition
<discord-> D​elta II. — yeah
<discord-> D​amien (it/that). — correction burns are common, and realistic
<discord-> D​elta II. — ignition
<discord-> D​elta II. — i will let you know how it goes
<discord-> D​amien (it/that). — cool but to avoid the wrath of the mods, do it in one go rather than in several comments
<discord-> D​elta II. — yeah i will
<discord-> D​amien (it/that). — techncially mission reports go in #missionreports and #missionreports-chat but rules are lax in this channel
<discord-> D​elta II. — will 4x timewarp mess it up?
<discord-> D​amien (it/that). — I'd avoid it personally but it shouldn 't
<discord-> D​amien (it/that). — I'd avoid it personally but it shouldn't (edited)
<discord-> M​arsh. — Depends on how fast your computer is. Generally I don’t warp any burns
<discord-> D​elta II. — **my soul has left the chat since this is a 10 minute TLI burn**
<discord-> M​arsh. — Oh wow. You’re going to incur a lot of losses
<discord-> D​elta II. — this stage is only for TLI so idc
<discord-> D​elta II. — the spacecraf thas its own propellant and engine
<discord-> B​utcher. — I normally do 2x for burns.
<discord-> B​utcher. — Or just leave them running at 1x if I'm not in a hurry.
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<_whitenotifier-8975> [Principia] pleroy opened pull request #2858: Add Integrate to Polynomial, which uses Gauss-Legendre - https://git.io/JtvFc
<_whitenotifier-8975> [Principia] eggrobin labeled pull request #2858: Add Integrate to Polynomial, which uses Gauss-Legendre - https://git.io/JtvFc
<_whitenotifier-8975> [Principia] eggrobin reviewed pull request #2858 commit - https://git.io/JtvFE
<_whitenotifier-8975> [Principia] eggrobin reviewed pull request #2858 commit - https://git.io/JtvFz
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<_whitenotifier-8975> [Principia] pleroy synchronize pull request #2858: Add Integrate to Polynomial, which uses Gauss-Legendre - https://git.io/JtvFc
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<discord-> D​arthPointer. — Doesn't a 10min burn cause massive dV losses? I'd rather split the manœuvre.
<_whitenotifier-8975> [Principia] Failure. Build finished. - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4757/
<_whitenotifier-8975> [Principia] pleroy commented on pull request #2858: Add Integrate to Polynomial, which uses Gauss-Legendre - https://git.io/Jtvbf
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<discord-> s​iimav. — In stock - yes; in RSS - no
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<_whitenotifier-8975> [Principia] Failure. Build finished. - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4758/
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<_whitenotifier-8975> [Principia] pleroy synchronize pull request #2858: Add Integrate to Polynomial, which uses Gauss-Legendre - https://git.io/JtvFc
<_whitenotifier-8975> [Principia] Pending. Build queued… - 
<_whitenotifier-8975> [Principia] Pending. Building… - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4759/
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<discord-> P​aculino (ŝi/ri/she/they). — Delta-V losses are not directly proportional to burn length, but rather directly proportional to proportion of the orbit which is traveled during the burn
<discord-> l​amont. — path integral of the gravitational curvature or something-something along those lines.
<discord-> l​amont. — kerbin being like 1,000x higher density than the earth warps space more
<discord-> l​amont. — earth is easy-mode for guidance algorithms compared to kerbin
<_whitenotifier-8975> [Principia] Success. Build finished. - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4759/
<_whitenotifier-8975> [Principia] pleroy closed pull request #2858: Add Integrate to Polynomial, which uses Gauss-Legendre - https://git.io/JtvFc
<_whitenotifier-8975> [Principia] pleroy pushed 6 commits to master [+0/-0/±14] https://git.io/JtvAE
<_whitenotifier-8975> [Principia] pleroy 1bd4cc1 - Another test for inner product.
<_whitenotifier-8975> [Principia] pleroy 9ef17d0 - Integrate for polynomials.
<_whitenotifier-8975> [Principia] pleroy 7e3ea66 - Comments.
<_whitenotifier-8975> [Principia] ... and 3 more commits.