GoPro HERO9 saves the camera orientation as quaternion in its telemetry data. Fine.

I can extract pitch, roll, and yaw from it. Hurray. Primary flight display overlay, here we come!

But yaw is drifting, a lot more than the expected 15°/h * sin(latitude). Measured at rest, camera upside down.

Any suggestions what might be the cause?

A silicon IMU accumulating an error of approx. 271°/h is... weird. 🤔

#GoPro #gpmf #quaternions