(*TEST* flat inverted) --- filter SI, bin 2, night 220427, compared to previous night 220325, sigma = 0.0066 --- (flat / previous inverted)(flat inverted) --- filter B, bin 2, night 220313(flat inverted) --- filter SG, bin 2, night 220330(flat inverted) --- filter SI, bin 2, night 220325(flat inverted) --- filter SR, bin 2, night 220305(flat inverted) --- filter V, bin 2, night 220327
