Examples of light curves with measured rotation periods. The stars are also marked in the CPD of Fig. 6. Left column: light curves classified as first class and right column: noisier algorithmic ones. Bottom row: features the phase-folded light curves of the fast rotators in the row immediately above. Each light curve is over-plotted with a sine of the same periodicity as our final rotation period. The ID numbers in each panel are from Clem et al. (2011) and F19.