(*TEST* flat inverted) --- filter B, bin 2, night 210720, compared to previous night 210719, sigma = 0.0043 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter I, bin 2, night 210720, compared to previous night 210719, sigma = 0.0047 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter R, bin 2, night 210720, compared to previous night 210719, sigma = 0.0099 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter SG, bin 2, night 210720, compared to previous night 210719, sigma = 0.0060 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter SR, bin 2, night 210720, compared to previous night 210719, sigma = 0.0084 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter V, bin 2, night 210720, compared to previous night 210719, sigma = 0.0039 --- (flat / previous inverted)