Top: light curve of EPIC 201142043, detrended using the method of VJ14. Middle: autocorrelation function of the detrended light curve. The autocorrelation function method measures a rotation period of 3 days for this star. Bottom: the LS periodogram of the detrended light curve. The highest peak in the periodogram is located at 59 days and is likely to be a systematic trend produced by spacecraft pointing variations.