The experimental measurements were taken from
(1) H. Gupta, S. Brünken, F. Tamassia, C. A. Gottlieb, M. C. McCarthy, and P. Thaddeus, 2007, Astrophys. J., 655, L57.
The ab initio dipole moment was taken from
(2) S. J. Blanksby, A. M. McAnoy, S. Dua, and J. H. Bowie, 2001, Mon. Not. R. Astron. Soc. 328, 89.