UmbralRaptop changed the topic of #principia to: READ THE FAQ: http://goo.gl/gMZF9H; The current version is Fuchs. We currently target 1.5.1, 1.6.1, 1.7.x, 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
<UmbralRaptop>
To do: convince 🥚 that we need to use BT Settle models for stellar atmospheres
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<raptop>
er, BT-Settl, rather
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<discord->
RurouniDonut. — oh
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RurouniDonut. — mechjeb can dogleg to the moon now 😮
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<discord->
Gregrox. — woah this conservation of angular momentum stuff is real nifty
<discord->
Gregrox. — that's all i came here to say
<raptop>
But can you demonstrate conservation of angular momentum with a rotating mermaid?
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<discord->
IceWater. — How can i time my launch to the moon so the ascending node is in the correct place when the moon is in the correct spot in its orbit around earth. Launching from the cape. Thanks
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<discord->
RurouniDonut. — @IceWater Well apparently Mechjeb dogleg into the Moons orbit now but that is expensive.
<discord->
RurouniDonut. — What I’ve done, is sorta look at the Moon and simulate different launch angles to see which will get me a good trajectory to the Moon.
<discord->
RurouniDonut. — Mess around with different launch incs that allow you to just burn prograde to the Moon or something that is workable
<discord->
RurouniDonut. — It’ll be different for each launch, so just sim them beforehand
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lpg. — more interestingly, mechjev-dev has a _launch into target LAN_ mode now
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<discord->
RurouniDonut. — Is there two different modes now? Like launch into plane and launch into lan?
<discord->
RurouniDonut. — I imagine launch into lan is way cheaper delta/v wise
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RurouniDonut. — oh god
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RurouniDonut. — i just tried launching into lan
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RurouniDonut. — that did NOT work well
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RurouniDonut. — the rocket pitched over 🙂
<discord->
siimav. — It's called gravity turn
<discord->
RurouniDonut. — it pitched over SUPER hard
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RurouniDonut. — At around 25km it pitched below the horizen
<discord->
RurouniDonut. — and it wanted to use more stages then it should have
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Damien. — it was probably set to launch into wifi
<discord->
RurouniDonut. — wifi?
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Damien. — lan, wifi
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Damien. — terrible joke is terrible
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RurouniDonut. — OH
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RurouniDonut. — lmao
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RurouniDonut. — ECI, MCMF, and MCI are beautiful for planning landing targets for probes
<discord->
Damien. — yup
<discord->
RurouniDonut. — Same would apply to Interplanetary I imagine if I want to plan out landing sites?
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<discord->
Damien. — yeah, plan the transfer, then switch to body centered surface fixed to fine tune the landing site
<discord->
Damien. — love having all the different frames
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RurouniDonut. — for some reason, I find it harder to plan out if I i'll have connection when I get to another planet compared to the Moon
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RurouniDonut. — Sometimes I think I'll be going infront of the planet when I'll actually be going behind 😉
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Damien. — yeah that gets me sometimes too
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RurouniDonut. — Doesn't really matter for flybys though
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Damien. — but you can align using smartass and use throttle with no comms
<discord->
RurouniDonut. — True, but I havnt attempted orbitors in this game for other planets
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Damien. — I've not done it in RP-1 yet either
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RurouniDonut. — Some probes are a bitch to fly interplanetary though
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RurouniDonut. — Mariner, is super annoying to course correct with
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Damien. — when I used to do out of comms stuff it was using the RT flight computer
<discord->
Damien. — delayed burns etc
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RurouniDonut. — Ooof
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RurouniDonut. — RCS on Mariner is hell to deal with at times
<discord->
IceWater. — @lpg I've used the launch into LAN of 0deg with moon as target. It worked decently well, I got a relative inclination around 9.5 deg from the cape. What I'm a little bit more confused about is how to make sure the ascending/descending nodes end up in the right location relative to the moons orbit around earth. Any tips?
<discord->
lpg. — none, I haven't even tried the feature myself
<discord->
IceWater. — Lol no worries, I'll keep messing around with it to see what I can get!
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<discord->
RurouniDonut. — really happy with how less bloated saves are now
<discord->
egg. — huh? did we change something there?
<discord->
egg. — ah there is zfp so they should be four times smaller, right
<discord->
RurouniDonut. — Yepp
<discord->
RurouniDonut. — before i would have to clear history constantly, now almost 15 years into my save I'm gonna clear history of vessals
<discord->
egg. — hopefully once we properly deal with 2400 you can keep your histories forever
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RurouniDonut. — welp, its already a lot better but now my game is starting to lag a lil more then i'd like
<discord->
RurouniDonut. — so time to clear histories
<discord->
egg. — @RurouniDonut wait
<discord->
egg. — before you do that, can you send us your save?
<discord->
egg. — 15 years of uncut play sounds interesting to look at to test our fancy new trajectory representations once we get to 2400
<discord->
RurouniDonut. — Sure
<discord->
RurouniDonut. — I already cleared one vessal but I have backups
<discord->
RurouniDonut. — Some vessals I deleted like first sats and stuff
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RurouniDonut. — but I have some old vessals lying around
<discord->
egg. — yeah that sounds like a good test case
<discord->
RurouniDonut. — the longer ones are earth sats or interplanetary ones
<discord->
RurouniDonut. — the file is too big for discord so im gonna upload on mediafire
<discord->
egg. — you can zip it and attach it to the issue
<discord->
egg. — that way we can find it
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egg. — btw, when you actually get to cutting histories, you can try only deleting that of the earth sats
<discord->
egg. — the interplanetary stuff should be much smaller
<discord->
egg. — (even if it is over the same duration, the representation is more compact)
<discord->
RurouniDonut. — Gotcha
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RurouniDonut. — Do you want me to just attach the files by itself or do you want a descrip like Pleroy asks?
<discord->
RurouniDonut. — I'm not sure how many secs it takes to read or write 🙂
<discord->
egg. — attaching the file should be enough, maybe provide a bit of context on what is in there (e.g. the fact that there is 15 years of it, a mix of interplanetary and earth orbit, etc.) but no need to go into those details
<discord->
egg. — that comment was mostly « please don’t come to complain or tell us how to fix the problem », the issue was getting a bit silly
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RurouniDonut. — Gotcha
<discord->
RurouniDonut. — Git doesn't like how big the file is apparently
<discord->
RurouniDonut. — I'll just paste a drive link instead
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<_whitenotifier-d13c>
[Principia] RurouniDonut commented on issue #2400: History persistence lets .sfs files get very large - https://git.io/JfrDM
<discord->
RurouniDonut. — Done
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<discord->
RurouniDonut. — Actually, while on the topic. Is there a way to clear history without switching to the crafts? It takes forever to load 😦
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<discord->
egg. — no
<discord->
RurouniDonut. — darn
<discord->
RurouniDonut. — welp, after I did it. My save went down to 8 mbs
<discord->
RurouniDonut. — welp, after I did it. My save went down to 8 mb (edited)
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<_whitenotifier-d13c>
[Principia] pleroy commented on pull request #2592: Fix linker error when compiling with clang 9+ - https://git.io/Jfr5V
<_whitenotifier-d13c>
[Principia] pleroy commented on pull request #2592: Fix linker error when compiling with clang 9+ - https://git.io/Jfr51
<discord->
Myshiko. — @lpg actually launch into LAN is super useful. I was historically very sceptical about PVG work, but launch to LAN has changed my mind in a positive way.