Comparison of mass functions of GCs and satellites. The red solid line shows the total number of GCs in the area corresponding to the Dragon arc from the GC mass function, after normalizing it to a density of 1 GCs per kpc². The black dashed line shows the mass function from N-body simulations of a population of satellites in a cluster with M_vir = 10¹⁵ M_⊙ and computed in a similar area at distances between 50 and 70 kpc from the center of the halo (same distance of the Dragon arc). The dotted lines shows the dispersion in the number of satellites from 16 different realizations. In most realizations, no halos more massive than ∼10⁸ M_⊙ are found within the region considered. The total mass from the GC mass function is 4.01 × 10⁸ M_⊙ and the total mass from the satellite mass function is 3.07 × 10⁸ M_⊙. Finally, the sum of mass from the GC mass function up to 10⁶ M_⊙ and the mass from the satellite mass function above 10⁶ M_⊙ is 5.01 × 10⁸ M_⊙.