Plausible detection of the QPO feature corresponding to the LC shown in the bottom panel in Fig. 1. Right panel: LSP with the statistical significance of the LSP peak, along with the average WWZ map. The observed 0.01-day⁻¹ peak is ∼3σ significant. The average WWZ map shows a distinct peak at this frequency as well, strongly suggesting the presence of a QPO feature. Left panel: WWZ map and the time-averaged power. A distinct concentration of power within a narrow frequency band of around 100 days (0.01 days⁻¹) is observed. A 99.0% and a 99.73% significance are estimated for the LSP and WWZ results, respectively, which are shown in red and cyan.