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…
<discord-> N​athanKell (he/him). — Oooh, definitely coming along!!
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<_whitenotifier-edb> [Principia] eggrobin synchronize pull request #2973: Documentation for a correctly-rounded cube root - https://git.io/J3BRj
<_whitenotifier-edb> [Principia] eggrobin synchronize pull request #2973: Documentation for a correctly-rounded cube root - https://git.io/J3BRj
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<raptop> silly question for egg: are gravity missions on the roadmap in some way? (inspired by seeing https://arxiv.org/abs/2105.02790)
<raptop> I assume that this is something where any craft in any orbit can do a bit, though a dedicated one would be best (hi, GRAIL)
<discord-_> J​ustMozzie. — i just tried to quicksave and quickload, because my screen blacked out while planning a node, and the game is frozen now.
<discord-_> J​ustMozzie. — anyone else having this issue?
<discord-_> J​ustMozzie. — is it normal for my lunar impact missions that i am going over the apogee of the moon because i am not doing a mid course correction or is there a more effecient way to get an encounter with the moon?
<discord-_> J​ustMozzie. — here are some screenshots of my flight plan
<discord-_> Z​eusbeer. — It works, only do it if your probe has enough electricity for the longer journey though
<discord-_> Z​eusbeer. — Does the orbit analyzer feature orbit duration for solar orbits too? I want to try a EVM mission using multiple flybys of Mercury
<discord-_> Z​eusbeer. — To eventually get an efficient capture of Mercury
<discord-_> J​ustMozzie. — i believe so
<discord-_> Z​eusbeer. — I want to spare my pc doing some basic orbital resonance calculations 😅
<_whitenotifier-edb> [Principia] rnlahaye opened pull request #2981: Optimizations for DiscreteTrajectory - https://git.io/J3xZQ
<discord-_> A​shnoom. — So, what is it @egg is working on exactly?
<discord-_> S​tonesmile. — @Ashnoom Kerbalism Contracts, https://github.com/Kerbalism/KerbalismContracts/wiki/Design
<discord-_> A​shnoom. — OOooo fancy
<discord-_> D​amien. — Nice. I'll check it out later tonight
<_whitenotifier-edb> [Principia] schtonn starred Principia - https://git.io/J3x5f
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<_whitenotifier-edb> [Principia] eggrobin synchronize pull request #2973: Documentation for a correctly-rounded cube root - https://git.io/J3BRj
<_whitenotifier-edb> [Principia] eggrobin deleted tag 2021051119-Green
<_whitenotifier-edb> [Principia] eggrobin deleted tag 2021051119-Green - https://git.io/fpDwq
<_whitenotifier-edb> [Principia] pleroy tagged 7765178 as 2021051119-Green https://git.io/J3pNH
<_whitenotifier-edb> [Principia] pleroy created tag 2021051119-Green - https://git.io/fpDwq
<discord-_> Z​eusbeer. — NICE
<discord-_> Z​eusbeer. — I still had a quicksave
<discord-_> Z​eusbeer. — I'm gonna see if I can get a cheap mercury orbit
<discord-_> Z​eusbeer. — this is a planner for after the third flyby
<discord-_> Z​eusbeer. — slowly but surely
<discord-_> Z​eusbeer. — at the third flyby I might have enough to capture actually
<discord-_> Z​eusbeer. — the tricky part about mercury is getting the initial E-V-M transfer
<discord-_> d​enebw. — how do you plan the transfer?
<discord-_> Z​eusbeer. — Flyby finder for the first gravity assist
<_whitenotifier-edb> [Principia] pleroy pushed 5 commits to Grassmannian [+0/-0/±16] https://git.io/J3hTp
<_whitenotifier-edb> [Principia] pleroy df98de8 - Merge remote-tracking branch 'mockingbirdnest/master' into Grassmannian # Conflicts: # physics/ephemeris_body.hpp
<discord-_> Z​eusbeer. — After getting to mercury I just burn retrograde at mercury till I get an encounter in the next 500 days
<discord-_> Z​eusbeer. — Takes max 200 ms of deltaV
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<discord-_> Z​eusbeer. — Takes max 300 ms of deltaV (edited)
<_whitenotifier-edb> [Principia] pleroy synchronize pull request #2978: Do not flow a flight plan segment that is before the Ephemeris t_min - https://git.io/J3QWc
<discord-_> Z​eusbeer. — Takes max 300 ms of deltaV per pass (edited)
<_whitenotifier-edb> [Principia] pleroy commented on pull request #2981: Optimizations for DiscreteTrajectory - https://git.io/J3ht9
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<discord-_> Z​eusbeer. — This is the window I used
<discord-_> Z​eusbeer. — at 6010
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<_whitenotifier-edb> [Principia] rnlahaye commented on pull request #2981: Optimizations for DiscreteTrajectory - https://git.io/J3hsO
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<discord-_> e​gg. — I should probably merge Visible and Near-Infrared, I don’t see them being meaningfully different for mission design
<raptop> It's starting to feel like NIR is Visible Delux(tm)
<_whitenotifier-edb> [Principia] pleroy commented on pull request #2981: Optimizations for DiscreteTrajectory - https://git.io/J3hc9
<discord-_> Z​eusbeer. — I got it basically matching at this point
<discord-_> Z​eusbeer. — But the inclination still makes it expensive
<discord-_> e​gg. — Well, contrary to UV where the cutoff is the atmosphere, NIR vs. Visible is just the sun being a bit too warm to give us much there, so it’s fuzzy and not very physically meaningful
<discord-_> e​gg. — so yes, Visible Deluxe
<_whitenotifier-edb> [Principia] pleroy synchronize pull request #2978: Do not flow a flight plan segment that is before the Ephemeris t_min - https://git.io/J3QWc
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<_whitenotifier-edb> [Principia] pleroy closed pull request #2978: Do not flow a flight plan segment that is before the Ephemeris t_min - https://git.io/J3QWc
<_whitenotifier-edb> [Principia] pleroy pushed 9 commits to Grassmannian [+0/-0/±24] https://git.io/J3hgc
<_whitenotifier-edb> [Principia] pleroy 207dfbc - Do not flow a flight plan segment that is before the Ephemeris t_min; request reanimation instead.
<_whitenotifier-edb> [Principia] pleroy 0584845 - Merge remote-tracking branch 'mockingbirdnest/Grassmannian' into 2975
<_whitenotifier-edb> [Principia] pleroy 6c78908 - Add support for waiting for reanimation.
<_whitenotifier-edb> [Principia] ... and 6 more commits.
<discord-_> B​utcher. — My normal mercury plan is to pack a lot of fuel. 🤔
<raptop> consider: a solar-thermal rocket for the mercury insertion burn
<discord-_> B​utcher. — I don't think we have those. 😐
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<_whitenotifier-edb> [Principia] Growflavor commented on issue #2922: [Info] FARc 0_16_0_1_Mader can lead to a Principia Fatal error in KSP 1.11.1 - https://git.io/J3hMM
<discord-_> P​aculino (ŝi/ri/she/they). — Bug CH4 people until we get it?
<discord-_> P​aculino (ŝi/ri/she/they). — Are you suggesting we bug CH4 people until we get it, raptop? (edited)
* raptop >_>;;
<discord-_> Z​eusbeer. — I just need a way to match inclination, I think you can use Venus for that too
<discord-_> Z​eusbeer. — To an extent
<discord-_> P​aculino (ŝi/ri/she/they). — A lot of fuel is easier for planning at least
<discord-_> l​eudaimon. — Yeah, iirc real missions use the first Venus flyby to match inclination
<discord-_> Z​eusbeer. — I just have to figure out how to do it and I think I can get a decent mercury mission going
<discord-_> B​utcher. — Yeah they don't want to push a huge rocket into orbit to get there direct.
<discord-_> B​utcher. — My mercury rockets were the largest by far in my long term career.
<_whitenotifier-edb> [Principia] pleroy labeled issue #2896: Crash to desktop when switching vessels in Tracking Station - https://git.io/JtDai
<_whitenotifier-edb> [Principia] pleroy closed issue #2896: Crash to desktop when switching vessels in Tracking Station - https://git.io/JtDai
<_whitenotifier-edb> [Principia] rnlahaye synchronize pull request #2981: Optimizations for DiscreteTrajectory - https://git.io/J3xZQ
<_whitenotifier-edb> [Principia] rnlahaye commented on pull request #2981: Optimizations for DiscreteTrajectory - https://git.io/J3jUu
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<_whitenotifier-edb> [Principia] pleroy commented on issue #2922: [Info] FARc 0_16_0_1_Mader can lead to a Principia Fatal error in KSP 1.11.1 - https://git.io/J3jTy
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<_whitenotifier-edb> [Principia] eggrobin synchronize pull request #2973: Documentation for a correctly-rounded cube root - https://git.io/J3BRj
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<discord-_> e​gg. — Now with pushbroom imaging (the satellite images a strip perpendicular to the orbital plane, instead of a spot below the satellite (most of which would be highly redundant with earlier and later images). This means that sunglint creates actual holes in your data (which wasn’t the case in the earlier image ; unglinted data was gathered up or down the track on the same pass)
<discord-_> e​gg. — Conversely it means that in the rare cases where you do want glint, it is harder to come by
<discord-_> s​cimas. — Brain compile error on that message: missing `)` somewhere
<discord-_> e​gg. — Now with pushbroom imaging (the satellite images a strip perpendicular to the orbital plane, instead of a spot below the satellite (most of which would be highly redundant with earlier and later images)). This means that sunglint creates actual holes in your data (which wasn’t the case in the earlier image ; unglinted data was gathered up or down the track on the same pass) (edited)
<discord-_> e​gg. — Fixed :D
<raptop> . o O (Laser pushbroom)
<discord-_> e​gg. — aren’t lasers usually dots with essentially zero swath, as opposed to pushbrooms ?
<raptop> I was reminded of laser brooms despite those going in the other direction
<raptop> I want to say that some laser altimeters use an array
<discord-_> e​gg. — oooh right, along-track brooms are a thing
<discord-_> e​gg. — (in fact it is often an option to turn the broom, albeit situational; I guess this could make for some fun scenarii)
<raptop> Ice Sat 2, maybe?
<discord-_> e​gg. — classic pushbroom bowties
<discord-_> e​gg. — (also, broken geometry)
<discord-_> e​gg. — fixing the geometry yields a more reasonable glint distribution >_>
<discord-_> e​gg. — (and correctly-aligned bowties)
<raptop> Do the geometry errors imply alternate earth topographies?
<raptop> flat? donut? kleine bottle?
<_whitenotifier-edb> [Principia] eggrobin synchronize pull request #2973: Documentation for a correctly-rounded cube root - https://git.io/J3BRj
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