(*TEST* flat inverted) --- filter SG, bin 2, night 240208, compared to previous night 240127, sigma = 0.0043 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter SI, bin 2, night 240208, compared to previous night 240126, sigma = 0.0114 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter SR, bin 2, night 240208, compared to previous night 240127, sigma = 0.0080 --- (flat / previous inverted)