(*TEST* flat inverted) --- filter I, bin 2, night 220114, compared to previous night 220112, sigma = 0.0034 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter R, bin 2, night 220114, compared to previous night 220112, sigma = 0.0065 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter SI, bin 2, night 220114, compared to previous night 220112, sigma = 0.0033 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter V, bin 2, night 220114, compared to previous night 220112, sigma = 0.0033 --- (flat / previous inverted)