Top panel: BLS spectrum of the filtered light curve LRa01_E1_2996, containing simulated transits by a super-Earth with orbital period P = 2.1 days. The 12 h instrumental effect overcomes the planetary signal, which impedes its detection. Bottom panel: phase-folded light curve at the period and epoch found by the BLS, displaying the quasi-sinusoidal variation caused by the Earth’s perturbation (see text for more details).