Numerical results for the simplest case: face-on observation of a binary with zero inclination. Shown are the signal and the Fourier transform (left and right, respectively) for s₁ ∕s₂ = 2 with axes as in Fig. 3. The signal has the lunar periodicity only. In contrast to the edge-on signal, the peak magnitudes for the planet and lunar eclipse differ if s₁ ≠ s₂, meaning that the peaks at odd m are not smallas compared to even m.