So it appears to be a platter wobble.
the way to check that is to lift the patter and turn the spindle a third of a rotation or half a rotation and then drop the platter back down onto it again, with the platter having done no rotations at all.
and check the wobble again to see if it changes it's character.
Wait... there IS a way to have two wobbles per rotation, now that I think about it.
Where the spindle is bent and the spindle hole on the platter is stretched and/or the platter body itself is bent. That would be two separate wobbles if not aligned or one big one, if they are lined up. A single sharp hard impact would create the single big one that could be moved about to be two smaller wobbles.