Closest approach on orbit

[Jarin]

Something wrong here.

(for the record, I passed within 0.1km of the asteroid not 15 minutes past this point)

[Benjamin Kerman]

Not exactly sure what you are asking. Do you need advice, or are you trying to report a bug?

[Jarin]

22 minutes ago, Benjamin Kerman said:

Not exactly sure what you are asking. Do you need advice, or are you trying to report a bug?

I'm not sure if I'm looking at a bug or not. Mostly it's just weird and I was hoping someone could tell me how to handle approaches to avoid this, or just say "it's borked" so I don't have to worry about it.

[Benjamin Kerman]

Basically I don't know what's going on. Are the intersect lines flashing, or is it something else? Can you describe what is happening more thoroughly?

[Rhomphaia]

Those are intersect markers, not closest approach, and looks like they are for your future orbit after the mun encounter.

[Jarin]

Okay, the craft in the center mark (lander icon) is on approach to the nearby asteroid, with an actual closest-approach at less than 1km. The orbital predictions aren't registering that, though, it's picking almost-random locations on the next orbit as first and second intercept. No flickering or bouncing of the orbit lines, they're solidly where they shouldn't be. The SOI change in the lower right is just clipping into Mun's influence for a bit. I adjusted out of that SOI though, and it still didn't have an up-close intercept on the map.

Edited January 12, 2017 by Jarin

[Zhetaan]

I can think of two possibilities, but keep in mind that I'm not so well-versed in the 1.2 changes to the orbit code as to be confident that they are correct.

First, the game may have a problem resolving the intercept because of SoI interference--you said that you cleared the Mun intercept, but the asteroid itself is still primarily in orbit of the Sun and is only passing through that of Kerbin.  Your intercepts may be marked with respect to the asteroid's permanent orbit after it leaves Kerbin space.  As to why it would be doing this, I have no idea.

Second, because the asteroid's orbit is on an interplanetary scale but your ship's orbit is within the sphere of one planet, you may be encountering an issue with the game's ability to accurately resolve the orbital detail because of the weaknesses and general lack of precision in floating-point numbers.

[Benjamin Kerman]

Sorry for the stupidity... I am at school right now and imugur is blocked... I couldn't see the pic. Sorry!