White Balance data

I’ve run into some data where the white balance is expressed in a manner befuddling to me: 1.46399. 1 1.52999 Is 6500K ?! There is a tint (4.2 for what that’s worth) applied to the white balance as well, which may confound this data. Anyone have an idea of what these numbers might be? XYZ and xyY both seem wrong…? Thanks! Jeff