H|$\gamma$| radial velocity curve of primary star at quiescence. The value of |$K_1$| obtained is |$82.2 \pm 3.0$| km s|$^{-1}$|⁠, with a goodness of fit |$\chi ^2 = 457.6$| with 52 deg of freedom and standard deviation |$\sigma =2.86$|⁠. The results for this line does not comply our formal criteria (see the text).