Figure 7
From: Spatial uniformity and temporal stability of pixel-to-pixel variation in mini-SiTian CMOS detector
Top panel: the standard deviation of the N-stacked flat fields in November, 2023. Pink dots and the yellow hollow circles are the standard deviations of the mean and median of the stacked flat fields, respectively. Gray dots represent the per-day standard deviation of the pixel-to-pixel variations. Bottom panel: the standard deviation of N-stacked flat fields divided by the mean flat fields of this month.
