Orbit changes after timewarp

[infinite_monkey]

I don't know when this started, but I'm having an annoying problem: For example I want to fly to Minmus. I raise my apoapsis until I have an encounter. I timewarp half way to Minmus. After coming out of timewarp, I have no encounter anymore - I just miss minmus. Yesterday I needed about 250 m/s dV to fix my orbit. Does this have to do with Precise Maneuver Node?

[4x4cheesecake]

I've seen a few reports about similar issue.

1) Mentioned by Gordon Dry in the Kerbal Alarm Clock thread
2) Mentioned by The-Grim-Sleeper in the Better Time Warp thread (especially while using timewarp speed below 1x)
3) Mentioned by someone, again regarding Better Time Warp (I cannot find the thread right now)

The third one got an isse with its vessel flying at lower speed than it was displayed, even while he didn't used the Better Time Warp mod.
Any chance you got one of these mods installed?

[infinite_monkey]

Damn, you're a living forum archive  Yes, I've installed both of them. Kerbal Alarm Clock was the last mod I suspected, but the description there is what I experiencing. The Better Time Warp issue seems a bit different. I'll follow both threads...

Thanks!

[4x4cheesecake]

The sun is burning, I got no AC... so instead of playing the game and heat up my room even more, I use the time to read a lot through the forum

Since these are just two mods, you can try which one is the reason by running the game with just one of them installed. I hope that it is actually just one of them and not both, because these mods are really great and depending on your playstyle, it can be hard to give up on one of them and even harder to give up both.

I'm sorry that I cannot come up with an actual solution but hopefully, if you can isolate the issue to one of these mods and report it to the author, it can be fixed this way

Oh, I just got another idea....there is a settings option called 'orbital drift compensation' (in the general tab)...did you deactivate it?

edit: hey look, I found the third thread Apparently, I was wrong on my memory and the exactly issue description. It happend during a customized physical time warp. It contains a video, you might want to check and compare to your install.

Edited July 31, 2018 by 4x4cheesecake

[infinite_monkey]

It was Better Time Warp indeed. Uninstalling it fixed the issue. It seems similar to the issue in the third thread, but I cannot verify anymore - I'm fine without BTW

[infinite_monkey]

Interesting finding, though: When having time acceleration active while going through the atmosphere, apoapsis and periapsis are changing - which is expected due to a little drag. But if I then exit the atmosphere (time acceleration still being 4x), AP and PE keep changing (at least according to KER). When I stop time acceleration and then time warp again (now much faster since we're in space), AP and PE remain constant.