(flat inverted) --- filter B, bin 1, night 201020, compared to previous night 201018, sigma = 0.0024 --- (flat / previous inverted)(flat inverted) --- filter C, bin 1, night 201004(flat inverted) --- filter CV, bin 1, night 201016(flat inverted) --- filter I, bin 1, night 201020, compared to previous night 201018, sigma = 0.0027 --- (flat / previous inverted)(flat inverted) --- filter R, bin 1, night 201020, compared to previous night 201018, sigma = 0.0023 --- (flat / previous inverted)(flat inverted) --- filter V, bin 1, night 201020, compared to previous night 201018, sigma = 0.0026 --- (flat / previous inverted)