egg changed the topic of #principia to: READ THE FAQ: http://goo.gl/gMZF9H; The current version is Cesàro. We currently target both 1.2.2 and 1.3. <scott_manley> anyone that doubts the wisdom of retrograde bop needs to get the hell out | https://xkcd.com/323/
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<UmbralRaptor>
Also the names of a bunch of mathematicians.
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<awang>
egg|work|egg: Why are ballistic transfers so hard :(
<awang>
Also, what frame in Principia does "Sun-Earth Synodic Frame" correspond to?
<awang>
Is it earth-sun barycentric?
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<awang>
Also, "Max steps per segment" vs "tolerance" in the flight plan window
<awang>
Which one has more of an effect on accuracy?
<awang>
And what's with the limit on how far in the future you can start a maneuver?
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<egg|cell|egg>
Tolerance is the only one that affects accuracy
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<awang>
What is max steps per segment supposed to do?
<GH>
[Principia] DaMichel opened issue #1591: incorrect ground speed on minmus https://git.io/vdKix
<awang>
egg|work|egg: I have an interesting bug for you
<awang>
Looking in the tracking station, see a sounding rocket core some absurd distance from the Earth
<awang>
242.189Tm, moving at 596.5Mm/s
<awang>
Click "fly", go to map view, Sun isn't visible
<awang>
Hit tab, camera goes to sun
<awang>
Hit backquote to reset camera, crash in Principia
<awang>
Don't know if this is something to worry about, since the circumstances are probably somewhat uncommon
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<egg|work|egg>
awang: open an issue, IRC is a poor bugtracker
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<awang>
egg|work|egg: I'll get to it in a bit
<GH>
[Principia] pleroy opened pull request #1592: Do not use the prediction prior to its fork point (rotating-world...Prediction) https://git.io/vdimp
<GH>
[Principia] eggrobin opened pull request #1593: Do not reuse map nodes for another type (rotating-world...reunification-point-8) https://git.io/vdiYK
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<GH>
[Principia] pleroy commented on issue #1591: I am going to assume that this is the same issue as #1413, which hopefully will be fixed in the upcoming Chasles version.... https://git.io/vdis2
<GH>
[Principia] eggrobin commented on issue #1592: Seems to work in-game.... https://git.io/vdisw
<GH>
[Principia] eggrobin commented on issue #1591: Indeed, this is Minmus at 3126 m, above the 3km limit, so #1413 should occur.... https://git.io/vdisQ
<GH>
[Principia] eggrobin commented on issue #1591: Indeed, this is Minmus at 3126 m, above the 3 km limit, so #1413 should occur.... https://git.io/vdisQ
<GH>
[Principia] pleroy opened issue #1594: Only render a view of the trajectories https://git.io/vdiGu
<GH>
[Principia] aw1621107 opened issue #1595: Crash on camera switching from Sun to vessel with extremely large velocity/altitude https://git.io/vdiZz
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<GH>
[Principia] eggrobin opened pull request #1596: Handle collisions with scenery as collisions (rotating-world...collisions-as-collisions) https://git.io/vdiRD
<egg|nomz|egg>
awang: max steps per segment is a timeout
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<egg|zzz|egg>
awang: the flight plan is not allowed to work more than that on a segment (i.e. a coasting phase between manoeuvres, or a burn)
<egg|zzz|egg>
awang: it's mostly there so you don't accidentally hang the game by yanking a slider
<egg|zzz|egg>
awang: plan length controls the length for which it integrates, but since it's a slider, yanking it too hard can lead to asking for a long integration, so then the time out kicks in
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<awang>
Ah, that makes sense
<awang>
I guess the missing piece was the definition for "segment"
<awang>
egg|zzz|egg: What about the limit on "t initial"?
<awang>
I'd like to be able to try some burns several orbits in the future, but apparently I can only have t initial up to t-~11 hours
<egg|zzz|egg>
awang: awang increase plan length
<egg|zzz|egg>
awang: or if that times out, increase the max segment steps
<egg|zzz|egg>
(the coasting until that first burn is a segment, so if it gets long it might take a lot of steps and trip the timeout)
<awang>
Ohhhh
<awang>
That makes a lot of sense
<GH>
[Principia] eggrobin commented on issue #1596: Example logs:... https://git.io/vdiuN
<awang>
egg|zzz|egg: Ballistic transfers are hard...
<egg|zzz|egg>
:D
<egg|zzz|egg>
but fun!
<egg|zzz|egg>
awang: also feel free to post screenshots (also in kspacademia, this might amuse the audience there :-p)
<awang>
Does stealing from someone's PhD thesis count?
<awang>
It at least gives me hope that I can eventually pull this off
<awang>
Especially since I'm more or less flying by the seat of my pants
<awang>
"Launch windows? What are those?"
<egg|zzz|egg>
sure, it's even better if you get your flight plan off a paper
<egg|zzz|egg>
(attribution is a good academic practice though, so cite! cite all the things!)
<awang>
Eh, "flight plan" is being a bit generous
<awang>
More like "Does my predicted orbit look like one of the drawings? Yes? That's probably a good sign"
<awang>
But cite I will
<GH>
[Principia] eggrobin pushed 2 new commits to rotating-world: https://git.io/vdigh
<GH>
Principia/rotating-world 47421be Robin Leroy: Do not reuse map nodes for another type
<GH>
Principia/rotating-world 4996c6b Robin Leroy: Merge pull request #1593 from eggrobin/reunification-point-8...
<GH>
[Principia] eggrobin pushed 2 new commits to rotating-world: https://git.io/vdi2e
<GH>
Principia/rotating-world bbb20ce pleroy: Do not use the prediction prior to its fork point.
<GH>
Principia/rotating-world 17ae9e4 Robin Leroy: Merge pull request #1592 from pleroy/Prediction...
<GH>
[Principia] eggrobin opened pull request #1597: Support for 1.3.1 (rotating-world...1.3.1) https://git.io/vdiaF
<GH>
[Principia] eggrobin opened pull request #1598: Remove some traces (rotating-world...stop-tracing-that-kraken) https://git.io/vdiVC