raptop changed the topic of #principia to: READ THE FAQ: http://goo.gl/gMZF9H; The current version is Fréchet. We currently target 1.5.1, 1.6.1, and 1.7.x. <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
egg|laptop|egg has joined #principia
Wetmelon has joined #principia
sdrodge has quit [Ping timeout: 190 seconds]
<discord-_> m​orzenmebs. — Do the models used with rss and principia come from rss or principia and are the exact source models used for gravitation and such available
<discord-_> m​orzenmebs. — ty
<discord-_> e​gg. — (and the sources referenced therein for the actual unerlying models; we truncate most of the gravity models to manageable degree and order)
<discord-_> e​gg. — note that even though that file has the selenopotential to degree and order 50 (https://github.com/mockingbirdnest/Principia/blob/755f3ec5b30afc5d3c48a9ae3157ab20461a8e75/astronomy/sol_gravity_model.proto.txt#L622-L2044) as we used that to test how high we needed to go, the selenopotential in the config files shipped with Principia only goes to degree and order 30 (https://github.com/mockingbirdnest/Pr
sdrodge has joined #principia
<discord-_> m​orzenmebs. — Will that behave close enough to real life or should i import those specific models into gmat
<discord-_> e​gg. — I suppose the answer to your question depends what your goal is
<discord-_> m​orzenmebs. — I would like to be able to use gmat to simulate missions to the level that i can predict required station keeping
<discord-_> m​orzenmebs. — for instance im working on a sun observation sat at sun earth l1
<discord-_> e​gg. — Principia+RSS should work close enough to real life
<discord-_> m​orzenmebs. — cool
<discord-_> P​teropodidae. — What are the last two plots showing?
Mike` has quit [Ping timeout: 190 seconds]
<discord-_> T​ransparent_Elemental. — is it not possible to ullage the engine with principia or do i need some insanely powerful RCS/plain SRMs for that now? i used one rocket previously that coasted and ullaged second stage with RCS, but now the ullage percentage just doesn't want to grow at all, i installed a bit more powerful RCS and still no effect
<discord-_> l​pg. — haven't noticed any recent change
<discord-_> l​pg. — would that be in krash by any chance?
<discord-_> T​ransparent_Elemental. — yes, it's in krash
<discord-_> T​ransparent_Elemental. — though i haven't test in real flight
<discord-_> l​pg. — Haven't noticed it recently, but in the past I'd seen really odd behavior where the _orientation_ of the craft could cause ullage not to happen or to happen spontaneously
<discord-_> l​pg. — something like 'point towards surface, ullage stays at 0% no matter what; point away from surface, ullage goes up to 100% on its own'
Mike` has joined #principia
<discord-_> l​pg. — (but maybe not specifically that. I never really pinned it down and it's been a while)
<discord-_> l​pg. — but only in krash
<discord-_> T​ransparent_Elemental. — hmmm, using side-mounted SRMs helped, it's weird
egg|laptop|egg has quit [Remote host closed the connection]
<discord-_> l​pg. — krash and principia have a bunch of peculiar interactions. I've found that Switching to a different vessel out of physics range tended to make things work better
<discord-_> P​teropodidae. — TIL "ct" and "st" ligatures exist
<discord-_> P​teropodidae. — And Discord's font apparently doesn't support them
<discord-_> P​teropodidae. — Didn't see those latter two plots in the documentation folder in the Principia repo
Jesin has quit [Ping timeout: 190 seconds]
Jesin has joined #principia
<discord-_> D​amien. — @morzenmebs if you do manage to get proficient enough in GMAT to do ksp/principia mission planning please consider making a guide for the rest of us
<discord-_> D​amien. — especially if you manage to pull off transfer window planning
egg|cell|egg has quit [Ping timeout: 378 seconds]
egg|cell|egg has joined #principia
egg|cell|egg has quit [Ping timeout: 190 seconds]
<discord-_> J​aSmAn. — I am using KSP 1.8.1 RSS/RO. What version of Principia should I be running please?
<discord-_> D​amien. — <https://github.com/mockingbirdnest/Principia> at the bottom
Wetmelon has quit [Ping timeout: 190 seconds]
<discord-_> m​orzenmebs. — @Damien will do
<_whitenotifier-d13c> [Principia] rsparkyc opened issue #2556: Disable timewarp rotation if under a certain threshold - https://git.io/JfGqj
<discord-_> K​obymaru. — Is principia preventing me from selecting flags and launch sites as a target?
Wetmelon has joined #principia
egg|cell|egg has joined #principia
egg|cell|egg has quit [Ping timeout: 190 seconds]
egg|cell|egg has joined #principia
egg|cell|egg has quit [Read error: Connection reset by peer]
egg|cell|egg has joined #principia
egg|laptop|egg has joined #principia
<discord-_> I​upiter1007. — I sometimes have the issue of when I hit the spacebar to stage a rocket, the game crashes. So far, it has always been the last stage. I can attach the log later.
<discord-_> l​pg. — there was a bug related to that, fixed in fubini
<discord-_> I​upiter1007. — I have fubini
<discord-_> I​upiter1007. — I will reinstall it and let you know if the problem persists.
egg|laptop|egg has quit [Remote host closed the connection]
egg|laptop|egg has joined #principia
Wetmelon has quit [Ping timeout: 190 seconds]
egg|laptop|egg has quit [Remote host closed the connection]
egg|laptop|egg has joined #principia
<discord-_> e​gg. — @Pteropodidae the last two plots are the same as the first, but over a longer duration (10 years instead of one month). The last plot has one point every revolution, the penultimate one has one point every 328-revolution (one-month) cycle, to show the long-term trend separately from the cycle pattern.
UmbralRaptop has quit [Remote host closed the connection]
<discord-_> e​gg. — and the point of those plots are to show that degree and order 30 are close enough to degree and order 50 on that low lunar orbit (I think the altitude is about a hundred kilometres?)
<discord-_> e​gg. — @Iupiter1007 If you want to attach logs or report bugs, I would suggest attaching the correct logs. Please read the FAQ: https://github.com/mockingbirdnest/Principia/wiki/Installing,-reporting-bugs,-and-frequently-asked-questions#windows-dialog-box-or-sigabrt
<discord-_> I​upiter1007. — Is the log I attached not the right log?
<discord-_> e​gg. — No, please read the FAQ.
<discord-_> I​upiter1007. — Thanks @egg I will get on that in the future.
<discord-_> e​gg. — @Iupiter1007 @lpg Also, @DRVeyl pointed out that the issue in question may have been caused by a PP bug, https://discord.com/channels/319857228905447436/480397772248580098/705761759864029284, and that Principia was simply the first to find it and crash on it
<discord-_> e​gg. — so it may be that now that we fixed the bug, the game itself crashes instead of us; try updating PP.
<discord-_> P​teropodidae. — @egg Oh, so *d*x*o* in the legend is degree x order?
<discord-_> e​gg. — yup
<discord-_> P​teropodidae. — I thought those were orbital parameters at first but then the 50x0 didn't make sense
<discord-_> e​gg. — so that is degrees all the way to 50, but order 0 only
<discord-_> e​gg. — that means zonal only
<discord-_> e​gg. — that means a gravitational field that is rotationally symmetric around the axis
egg|laptop|egg has quit [Remote host closed the connection]
<discord-_> P​teropodidae. — Like one from either a point mass or a spherically symmetrical mass?
<discord-_> P​teropodidae. — So degree is degree of the approximating polynomial, and order describes how non-spherical the described field is?
egg|laptop|egg has joined #principia
<discord-_> e​gg. — no, rotational symmetry about an axis, not spherical symmetry
<discord-_> e​gg. — and no
<discord-_> P​teropodidae. — :/
<discord-_> P​teropodidae. — Figures my uneducated guesses would be off