It is very relevant to the discussion we are having now about the behavior of an unbalanced top.

I agree with the astronaut: I would have expected the unbalance top to wobble much more that it does!

If you model the top as a thin disk of radius r and mass of m and put a point mass of mp at the rim. The center of mass is then at distance of r*mp/(m + mp) from the center of the disk along a line from the center of the disk to the point mass on the rim. Letting this line be the body x axis and the line perpendicular to it in the plane of the disk be the body y axis. The body z axis is then perpendicular to the plane of the disk. The moments of inertia about this center of mass are:

Ix = 0.25*m*r^2

Iy = (.25*m + m*mp/(m + mp))*r^2

Iz = (.5*m + m*mp/(m + mp))*r^2

It's important to note that these are the principal moments of inertia and the x,y and z axes are the principal axes of inertia. It's seen that:

Ix < Iy < Iz

The intermediate axis theorem states that rotation about the minimum or the maximum principal axes is stable. While rotation about the intermediate axis is unstable. In the video she spins the top about the z axis which is the maximum moment of inertia and so is stable.

I made a animation of the intermediate axis theorem here:

https://www.youtube.com/watch?v=-2cMmwIKTJM