Same as Figure 6 but from the weighted mean of the W1 and W2 magnitudes (W_wm), presenting the P_rot = 8.8536 ± 0.3860 hr with an amplitude ~ 1.6 mag in the left panel and the maxima P_rot = 0.3689 days (=8.8536 hr) with a significance level of 30.5% in the right panel. Another candidate P_rot ~ 15.6 hr (~0.65 days) has a significance level of 30.4%.