(*TEST* flat inverted) --- filter B, bin 2, night 210918, compared to previous night 210809, sigma = 0.0055 --- (flat / previous inverted)(*TEST* flat inverted) --- filter SI, bin 2, night 210918, compared to previous night 210914, sigma = 0.0045 --- (flat / previous inverted)(flat inverted) --- filter B, bin 2, night 210918(flat inverted) --- filter SG, bin 2, night 210916(flat inverted) --- filter SI, bin 2, night 210918(flat inverted) --- filter SR, bin 2, night 210916(flat inverted) --- filter V, bin 2, night 210915