(*TEST* flat inverted) --- filter B, bin 1, night 240528, compared to previous night 240526, sigma = 0.0064 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter I, bin 1, night 240528, compared to previous night 240526, sigma = 0.0061 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter R, bin 1, night 240528, compared to previous night 240526, sigma = 0.0046 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter V, bin 1, night 240528, compared to previous night 240526, sigma = 0.0052 --- (flat / previous inverted)