Spatially- and time-dependent terms of the model function used in Eq. (2). Model terms are described as follows: tr is the transit model, p is the pixel phase correction (a₂, a₃, a₄, a₅ and a₆ in Eq. (2)), s is the sinusoidal (a₈, a₉ and a₁₀) and j is the jump model (a₁₁ and a₁₂). The linear trend a₇ is not represented.