The values of the resulting sum Σ of the weighted square deviations for different modes are listed in Table 3. As shown in the table, solutions converging at mode 4 can give the best fit to the observations. The adjustable parameters were: the mean temperature of star 2, T2; the dimensionless potential of star 2 Ω2, the orbital inclination i; and the monochromatic luminosities of star 1, L1B, L1V, L1R, and L1I.