Top panel: Clear-filter light curves from Fresno SRO on 27, 28 June, and 10, 20 July 2012. Middle panels: Zoomed-in view of the four light curves. The red dashed curve represents the best-fit sine wave with a period corresponding to the highest peak in the periodogram shown below. Bottom left panel: GLS periodogram of the four clear-filter light curves shown in the middle panels after subtraction of nightly averages. The highest peak corresponds to a period of 0.0948 d (2.275 h). Bottom middle and right panels: The four light curves folded on this period and twice that value. The pale blue points represent the unbinned data, while the purple points are binned data across 40 phase intervals. Zero phase is the HJD of the first data point.