Best values for age, A_V, and M_ini and their histogram distributions using Padova isochrones with a fixed metallicity Z = 0.02, an age range of 1 − 10 Myr, and a varying intrinsic extinction A_V ∈ [0.0, 1.0] based on the extinction coefficients from Gordon et al. (2016) for R_V = 3.1 and f_A = 1.0 (Sect. 3.1). The targets are divided in three groups based on the degrees of freedom, which depend on the number of available filters as explained in Sect. 2.1 (d.o.f. = 4 for a complete wavelength coverage, d.o.f. = 3 for one GULP flux alone, and d.o.f. = 2 for detection only in between the NUV and the I bands). The histograms are normalized to the total number of sources. The dashed black histogram shows the total frequency.