(*TEST* flat inverted) --- filter SI, bin 2, night 221022, compared to previous night 221002, sigma = 0.0748 --- (flat / previous inverted)(flat inverted) --- filter B, bin 2, night 221002(flat inverted) --- filter SG, bin 2, night 220910(flat inverted) --- filter SI, bin 2, night 221022(flat inverted) --- filter SR, bin 2, night 220908(flat inverted) --- filter V, bin 2, night 220908
