Vessel.acceleration x & z

[USAGuerrilla]

Sorry couldn't find anything related to this. When my vessel is going vertically up I read this:

acceleration.x=-59.1462815188811
acceleration.y=-0.12396669962001
acceleration.z=42.3680960662918

Even gravity acceleration is funny:

graviticAcceleration.x=7.95984658295845
graviticAcceleration.y=0.01663098942984
graviticAcceleration.z=-5.6336520486762

Is there some trick on why X and Z both have such accelerations?

Here is how lift off looks until engine burn out.

Edited May 1, 2018 by USAGuerrilla

[HebaruSan]

What do you get for up and upAxis? Maybe those values are in a solar coordinate system.

[USAGuerrilla]

Will check that.

There seems to be correlation between X and Z. I added graph of acceleration readings over time. Even without thrust they are basically negative of each other with some scaling (one is ~5.1 one is ~4.6 during free fall).

Y is correct as ship rotated seconds before flame out.

Edited May 1, 2018 by USAGuerrilla

[USAGuerrilla]

Yep. Phew. Up is -0.823560798177155, -0.00169657470056815, 0.56722546957986.

Thank you!

Assumed for some reason that coordinates are in vessel frame. Need to go and sleep before I do something stupid.

Edited May 1, 2018 by USAGuerrilla