(*TEST* flat inverted) --- filter SG, bin 2, night 210818, compared to previous night 210803, sigma = 0.0054 --- (flat / previous inverted)(*TEST* flat inverted) --- filter SR, bin 2, night 210818, compared to previous night 210803, sigma = 0.0054 --- (flat / previous inverted)(flat inverted) --- filter B, bin 2, night 210809(flat inverted) --- filter SG, bin 2, night 210818(flat inverted) --- filter SI, bin 2, night 210809(flat inverted) --- filter SR, bin 2, night 210803(flat inverted) --- filter V, bin 2, night 210814