EKF uncertainty of measurements per ISO GUM

Before I deep dive into writing something that calculates the uncertainty of some of the vehicle states (attitude, airspeed, wind estimate in particular), are these values currently available from the dataflash logs? I can tell from the EKF2 logging documentation that the variance and covariance for some of the states are logged and I could start from there to get uncertainty that meets the ISO GUM standard, but why recreate a wheel that already works well?

@TunaLobster Did you ever get a reply or any answer to this? I am doing the same thing so would love to chat
@priseborough may know more about this