I made a craft to orbit luna at a low altitude and the apoapsis and periapsis seem to slowly drift out of place and sometimes they change altitude. Warping time fixes this but its annoying when im trying to see the craft in real time

Bug Planned Found in 0.7.1.4
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14 Comments

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    Plz no

    one month ago
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    I mean it's no problem for me it's like real physics right there.
    Sometimes orbits do not stay still it's changing but hard to notice

    2 months ago
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    It happened to Skylab.

    4 months ago
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    Isn't orbital decay a real thing?

    4 months ago
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    @AndrewGarrison I've been thinking about your first comment
    "I do think it is possible for orbits to change slightly at very low altitudes due to reference frame rotation at those low altitudes."
    And it started to make more and more sense.
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    Based on this bug report the obvious reason for this drift shows up at low altitudes and based on this comment planet rotation seems to be directly related.
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    I've run into this bug again but this time it was extremely obvious when it started to happen because it was a moon with a high radius and a very thick atmosphere and I think you were right, it looks like it's the frame reference change causing it because it happened where the game changes from surface speed to orbit speed and vice-versa.
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    It looks like the denser the atmosphere and the faster the planet spin the more error shows up in the transition and by only having a thick atmosphere or a small enough body you can spot it too (as in Ilithos).

    9 months ago
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    It would make the orbit bigger and bigger in SR1 at Fast Forward. In 1.5 hours in real time could let a 70km orbit become an 100km orbit in SR1.

    9 months ago
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    这在SR1里面叫做扩轨bug。

    9 months ago
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    This bug is also exists in simplerockets 1.

    9 months ago
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    That's normal dude

    one year ago
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    @AndrewGarrison it looks like this is showing up in Droo too now as you can see here. I've been trying to see if it was orbital decay but drag goes to 0 at 58.3km as you can see here (I've tested it with more precission displays and it cuts at 58.3km suddenly)

    1.2 years ago
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    This post has been merged with this post.

    1.2 years ago
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    This post has been merged with this post.

    1.4 years ago
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    Dev Notes: Although I was not able to reproduce the issue with this sandbox, I do think it is possible for orbits to change slightly at very low altitudes due to reference frame rotation at those low altitudes.

    +3 1.7 years ago

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