Corner plot showing the constraints on the rotation period of the WD assuming that the measured ẋ is due to spin-orbit interactions from the WD. ϕ_C is the precession phase of the WD spin, and δ_C denotes its misalignment with respect to the orbital angular momentum. The solid blue, dashed olive, and dot-dashed red lines indicate Markov chain Monte Carlo runs assuming a WD radius of 20000, 30000, and 40000 km, respectively. We correspondingly infer a mean rotation rate of 3090, 8472, and 17218 seconds for the WD rotation. The bottom rightmost panel indicates the ratio between the contributions to ẋ from classical quadrupole moment (QM) and the relativistic Lense-Thirring precession (LT) of the orbit. For the radius of 20,000 km, we find the LT contribution to be a few percent at most, and for higher radii it is completely negligible. Note that for clarity we have assumed the sense of the inclination here to be < 90 deg. For inclination > 90 deg, which is also equally likely, the constraints on the period and the component contributions remain the same, but the constraints on (δ_C, Φ_C) change as δ_C = δ_C − 90° and Φ_C = Φ_C + 180°.