Left: Fluctuation power spectrum in the central 1 Mpc of El Gordo, where the bullet is masked, as a function of wave number k. The red curve shows the 2D fluctuations in the power spectrum subtracted from the Poisson noise (blue curve). The green curve shows the corresponding deprojected 3D power spectrum. Right: Amplitude of 3D fluctuations $A_{3D}=\frac{\delta \rho }{\rho }$ as a function of wave number.