Phase Dispersion Minimization (PDM) plots of the entire ∼1.3 year baseline for each permutation of binary component and photometric technique after running LCF. The arrow marked on each figure indicates the most significant periods after trying 10⁵ Monte-Carlo simulations. Panel A: PDM of all epochs of the I-band data sets of 2M J1314+13A. We discovered sinusoidal photometric variability with a period of ∼2.06 hours. Panel B: PDM of all epochs of the GUFI I-band data of 2M J1314+13B. We detected a period of ∼3.78 hours. Panels C and D: close-ups of the region where theta reaches its minimum, yielding our reported periods.