Example light curves (blue dots) of (10115) 1992 SK shown with the synthetic light curves produced by the best YORP model (red curves) and the best constant-period model (black dashed curves). We also show synthetic light curves generated by the shape and spin model of Busch et al. (2006) (dotted black curves). The latter were manually shifted in phase to give the best fit with observed data, but still, their amplitude is not consistent with 2017 observations. The geometry of the observation is described by the aspect angle θ, the solar aspect angle θ₀, and the solarphase angle α.