Gain biases for the four bolometers averaged over the Monte Carlo simulations, considering each dataset (from left to right: pure white noise without destriping, pure white noise after iterations, and low frequency noise with (α = 2,f_knee = 0.01), (α = 2,f_knee = 0.1), and (α = 1,f_knee = 0.1)). Error bars are derived from Monte Carlo simulations. dash line: systematics estimated in Sect. 7.1.