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Bug #19572

Patched Conics no longer reflect actual destination.

Added by MechBFP over 2 years ago. Updated almost 2 years ago.

Status:
Moot
Severity:
Unworthy
Assignee:
Category:
Gameplay
Target version:
Start date:
08/24/2018
% Done:

0%

Version:
Platform:
Windows
Expansion:
Core Game, Making History
Language:
English (US)
Mod Related:
No
Votes:
Arrow u r green
Arrow d r red

Description

As of 1.4.5, patched conics no longer accurately reflect the reality of where your ship will actually end up in the game. For example, while orbiting Kerbin you can place a maneuver node so that your peripasis in relation to the Mun is ~10,000m, but after auto-warping to the maneuver node you might suddenly be out by 100,000m, or possibly not even intercept the Mun at all. Happens very often, and did not happen at all in previous versions of KSP.
No RCS, no exiting the craft in EVA, nothing that could throw off the trajectory.

To reproduce, simply make a maneuver node, make a note of the periapsis, and then auto-warp and notice the difference.
Does not happen all the time, so will need to be repeated, but happens in about 1 in 3 attempts for me.

Does NOT appear occur if you manually warp to the node!

before auto warp.jpg (180 KB) before auto warp.jpg [email protected] MechBFP, 08/24/2018 01:58 AM
after auto warp.jpg (166 KB) after auto warp.jpg [email protected] MechBFP, 08/24/2018 01:58 AM
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History

#1 Updated by MechBFP over 2 years ago

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MechBFP wrote:

As of 1.4.5, patched conics no longer accurately reflect the reality of where your ship will actually end up in the game. For example, while orbiting Kerbin you can place a maneuver node so that your peripasis in relation to the Mun is ~10,000m, but after auto-warping to the maneuver node you might suddenly be out by 100,000m, or possibly not even intercept the Mun at all. Happens very often, and did not happen at all in previous versions of KSP.
No RCS, no exiting the craft in EVA, nothing that could throw off the trajectory.

To reproduce, simply make a maneuver node, make a note of the periapsis, and then auto-warp and notice the difference.
Does not happen all the time, so will need to be repeated, but happens in about 1 in 3 attempts for me.

Does NOT appear occur if you manually warp to the node!

See the attached screenshots for before the warp, and the result after the warp.

#2 Updated by MechBFP over 2 years ago

Please disregard.

Appears to be caused by a mod, as I could not reproduce in a pure stock install.

EDIT: I was able to narrow down this problem to Kopernicus, and I have filed a bug report with that mod developer.
https://github.com/Kopernicus/Kopernicus/issues/308

#3 Updated by MechBFP almost 2 years ago

  • Status changed from New to Moot
  • Assignee set to MechBFP
  • Severity changed from Low to Unworthy
  • Target version set to Not Applicable

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