UmbralRaptop changed the topic of #principia to: READ THE FAQ: http://goo.gl/gMZF9H; The current version is Fano. We currently target 1.3.1, 1.4.x, 1.5.1, and 1.6.1. <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…
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<discord-> e​gg. — @Standecco http://adsabs.harvard.edu/full/1967MmSAI..38...79S
<discord-> S​ir Mortimer. — o_O
<discord-> S​ir Mortimer. — @egg btw I think it's a mac thing. don't remember seeing a FATAL file, but will check again tonight.
<discord-> e​gg. — @Sir Mortimer that would be in <KSP directory>\glog\Principia
<discord-> e​gg. — or rather same with /
<discord-> e​gg. — since mac
<discord-> S​ir Mortimer. — yeah I saw those. INFO WARNING and ERROR files in there
<discord-> S​ir Mortimer. — but no FATAL as far as I remember
<discord-> S​ir Mortimer. — "a common aspect in orbital theroy of general perturbations(?) of artificial satellites in orbit of a central spherical body is the presence of eccentricity..."
<discord-> S​ir Mortimer. — I never had italian 😃
<discord-> S​ir Mortimer. — I never learned italian 😃 (edited)
<discord-> e​gg. — @Sir Mortimer good thing there's a Zusammenfassung then :-p
<discord-> S​ir Mortimer. — there is?
<discord-> e​gg. — one sentence at the top :-p
<discord-> e​gg. — there's a Sommario then a Zusammenfassung
<discord-> S​ir Mortimer. — aaah i see
<discord-> S​ir Mortimer. — heh, totally missed it
<discord-> S​ir Mortimer. — I'm still amazed by how many languages one is able to ((very) roughly) understand if you know just 2 and have basic knowledge of a 3rd
<discord-> e​gg. — yeah
<discord-> S​ir Mortimer. — (excempting swiss german here, that one is special)
<discord-> e​gg. — then again you have false friends everywhere
<discord-> e​gg. — trempe = quenching, tempering = revenu
<discord-> S​ir Mortimer. — ooh yeah. become is one of those 😉
<discord-> S​ir Mortimer. — become = werden, != bekommen
<discord-> e​gg. — ow yeah they keep telling me I become a letter at my bank
<discord-> S​ir Mortimer. — oh no you turn into paper?!
<discord-> e​gg. — I think I just turn into a letter of the alphabet
<discord-> e​gg. — Ich wandle mich in einem Buchstab um
<discord-> S​ir Mortimer. — btw, do you understand swiss german?
<discord-> e​gg. — lolno
<discord-> e​gg. — I went to ETHZ
<discord-> e​gg. — half the professors are german, and half the lectures are in english
<discord-> e​gg. — and anyway they're supposed to be in high german if in german
<discord-> S​ir Mortimer. — yeah, it is rough. even for native germans.
<discord-> S​ir Mortimer. — I love it how they display subtitles on TV sometimes when someone's talking swiss german.
<discord-> S​ir Mortimer. — well, subtitles are oldschool. nowadays they just do a voice over.
<discord-> e​gg. — fortunately the lectures compensate for the language being understandable in other ways: Sei 𝑊 eine Gruppe—𝑊 wie Gruppe—...
<discord-> e​gg. — (yes that's a real quote from the Coxetergruppen course I took in first year :-p)
<discord-> e​gg. — (yes that's a real quote from the Coxetergruppe course I took in first year :-p) (edited)
<discord-> e​gg. — it's actually 𝑊 wie Weyl, Coxeter groups are Weyl groups :-p
<discord-> S​ir Mortimer. — "let's call it Φ because it sounds intellectual"
<discord-> S​ir Mortimer. — - actual quote of my first course in linear algebra 😃
<discord-> S​ir Mortimer. — that prof was cool. he tried to teach maths as something tangible.
<discord-> S​ir Mortimer. —
<discord-> S​ir Mortimer. — "Imagine you walk in the park, and there you meet an euclidian vector space"
<discord-> S​ir Mortimer. —
<discord-> S​ir Mortimer. — He tried and failed.
<discord-> e​gg. — Completely unrelated, I am suddenly thinking about
<discord-> e​gg. — ```ada
<discord-> e​gg. — pragma Suppress(Numeric_Error, Horizontal_Veloc_Bias);
<discord-> e​gg. — ```
<discord-> e​gg. — again
<discord-> S​ir Mortimer. — overflow at 2^15. yikes.
<discord-> S​ir Mortimer. — and it cost 800 million euros.
<discord-> e​gg. — @Sir Mortimer code that wasn't needed in flight
<discord-> S​ir Mortimer. — yeah, that's the icing on the top.
<discord-> e​gg. — in a block that handled all exceptions, but that explicitly suppressed this one
<discord-> e​gg. — @Sir Mortimer hm, i think that code snippet is a bit of a simplification https://esamultimedia.esa.int/docs/esa-x-1819eng.pdf
<discord-> e​gg. — in particular it has readable identifiers, instead of abbreviated french identifiers
<discord-> e​gg. — @Sir Mortimer yeah reading that report, the code snippet on that page in german is BS
<discord-> e​gg. — they *never* handled exceptions
<discord-> e​gg. — (this message formerly referred to confused things about Ariane 501, see the actual report instead) (edited)
<discord-> e​gg. — they had exceptions and overflow checks on, but they considered any exception to be a hardware failure, dumped the error to the data bus and the context to the EEPROM, and switched to the backup computer
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<discord-> s​anjosharks39. — I'm not at work so I can't provide details immediately, but has anyone had any issues with maneuvers and the flight planner on the recent principia build?
<discord-> s​anjosharks39. — Well now that I think about it I can clip the stream from yesterday to show it. At work though so I'd need to fish through the VOD
<discord-> D​amien. — issues relating to the navball maneuver indicator moving around?
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<discord-> s​anjosharks39. — That sounds exactly like it. I'll try the workaround mentioned by @egg at the end of it when I get home and let someone know if it doesn't work
<discord-> s​anjosharks39. — I'm at work so I can't provide details immediately, but has anyone had any issues with maneuvers and the flight planner on the recent principia build? (edited)
<discord-> e​gg. — OK, this will be fixed in Fatou come the new moon then
<_whitenotifier-5dfc> [Principia] pleroy opened pull request #2183: Fix problems found on Linux - https://git.io/fjRAc
<_whitenotifier-5dfc> [Principia] eggrobin labeled pull request #2183: Fix problems found on Linux - https://git.io/fjRAc
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<discord-> S​tandecco. — @egg want translation?
<egg|z|egg> nah I'm fine
<egg|z|egg> just came across that and thought it might amuse/interess you
<discord-> S​tandecco. — it seems to have been translated into italian, rather than writing it with it
<discord-> e​gg. — ρεαλλψ;
<discord-> S​tandecco. — that's a really badly written sentence
<discord-> e​gg. — really?
* discord- e​gg. — bad at using the right keyboard_
<discord-> e​gg. — might just be academic prose being bad
<discord-> e​gg. — that's a thing
<discord-> S​tandecco. — not sure, but unless the writer is not a native or really bad at writing, phrasing is not how you'd normally write in italian
<discord-> S​tandecco. — the badly written sentence was the one I sent, btw
<discord-> e​gg. — which one
<discord-> e​gg. — the writer has a rather italian name
<discord-> S​tandecco. — `it seems to have been translated into italian, rather than writing it with it`
<discord-> S​tandecco. — Pasquale Sconzo is indeed 100% italian
<discord-> S​tandecco. — but you know, Beckett wrote in French and Svevo wrote in 3 different languages
<discord-> e​gg. — never underestimate the ability of academics to be bad at writing, even in their own language :-p
<discord-> S​tandecco. — you know, you might be right
<discord-> S​tandecco. — there are colloquial expressions and randomly placed commas, which is typical of bad italian writing
<discord-> e​gg. — sembra che sia http://mathematica.sns.it/autori/1229/
<discord-> S​tandecco. — wow, rather old as a study then
<discord-> e​gg. — the note is dated 1967
<discord-> e​gg. — ricevuta 1966
<discord-> S​tandecco. — and now I know why I recognized typical expressions
<discord-> S​tandecco. — he's from my region
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<discord-> S​tandecco. — or rather, I'm from his same region
<discord-> e​gg. — ich weiss nicht, which lingua on parle dans questo channel
<discord-> e​gg. — probably latin
<discord-> S​tandecco. — italian widely varies depending on the geographical location of the speaker
<discord-> e​gg. — yeah
<discord-> e​gg. — and then you have the really divergent dialects
<discord-> e​gg. — something something venexian something sicilianu
<discord-> S​tandecco. — I like the final u
<discord-> S​tandecco. — really accurate
<discord-> S​tandecco. — siciliano varies even between cities
<discord-> S​tandecco. — we could speak esperanto
<discord-> e​gg. — we could speak akkadian
<discord-> e​gg. — anyway, dinner
<discord-> e​gg. — circular orbits are weird
<discord-> e​gg. — I suppose you have already noticed that they have four apsides
<discord-> e​gg. — (typically periapsides at the poles, apoapsides at the equator)
<discord-> S​tandecco. — 𒅎
<discord-> S​tandecco. — perfectly circular or approximately circular?
<discord-> e​gg. — sufficiently circular
<discord-> e​gg. — as you lower your excentricity (around an oblate planet), eventually things get weird and you start having 4 apsides per orbit instead of 2
<discord-> e​gg. — così https://i.imgur.com/8AqBSQU.png
<discord-> S​tandecco. — why is that?
<discord-> e​gg. — the oblateness induces altitude variations, and these start to dominate the eccentricity that you would get from a Kepler orbit
<discord-> S​tandecco. — so it's because of j2?
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<discord-> D​RVeyl. — Jay, too, did that. Jay ruins everything. He's like Adam.
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<egg|cell|egg> Standecco: yes
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<discord-> K​obymaru. — @egg what about 5 apsides 😉
<discord-> e​gg. — 5 is odd
<discord-> e​gg. — that screenshot just has 2 apsides per revolution
<discord-> K​obymaru. — upsi wrong screenshot
<discord-> e​gg. — that's a bit misleading, you have a manoeuvre in the middle
<discord-> e​gg. — I think it's just a 4-apsis orbit in the end
<discord-> K​obymaru. — yeah, probably
<discord-> K​obymaru. — does Mars also have a J-2 potential? I thought only Earth and Moon
<discord-> e​gg. — it does
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<discord-> K​obymaru. — in principia I mean
<discord-> e​gg. — the Earth and Moon are the only one to go beyond that
<discord-> e​gg. — we should do that for Mars too, it's very lumpy
<discord-> K​obymaru. — oh I see
<discord-> K​obymaru. — that's pretty cool
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<_whitenotifier-5dfc> [Principia] Pending. Build queued… - 
<_whitenotifier-5dfc> [Principia] Pending. Building… - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/3631/
<discord-> S​ir Mortimer. — yeah... I think I need to do something about this.
<egg|z|egg> uh
<egg|z|egg> what happened
<_whitenotifier-5dfc> [Principia] michaelorella opened issue #2184: Delete entire flight plan - https://git.io/fjRh5
<discord-> S​ir Mortimer. — data rate of <1 bit per second to Duna.
<egg|z|egg> hm
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<UmbralRaptop> FTR, what sort of data rate did Mariner 2 have at Venus?
<discord-> S​ir Mortimer. — update to DSN Level 3 gives me 1.2kB. But Duna currently is close to kerbin.
<discord-> S​ir Mortimer. — that rate might drop. a lot.
<discord-> D​RVeyl. — Mariner 2 was basically 8.3,33.3bps.
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<_whitenotifier-5dfc> [Principia] Success. Build finished. - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/3631/
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<discord-> h​ooya. — funny how the principia ui is the source of literally all the lag caused by it
<discord-> h​ooya. — i think principia would beat my computer to death before i would beat my spacecraft to death via mars atmosphere
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