Statistical properties of QSEBs detected in the 24 min time series on 16 August 2020. The total number of Hβ QSEBs is 961, and the number of Hε QSEBs is 1674. The filled black histograms in panels (a)–(c) and (g)–(i) represent the maximum area, lifetime, and maximum brightness distributions, respectively. The vertical red line marks the lower limit set by the sampling: 0.0008 mm² (one pixel) in area (panels (a) and (g)) and 18 s in lifetime (panels (b) and (h)). In panels (d)–(f) and (j)–(l), multivariate JPDFs and scatter plots between the maximum area, lifetime, and maximum brightness are shown. The dark blue shade of the JPDFs indicates where the highest density occurs, and the lighter orange shaded regions represent the low-density distribution.