(flat inverted) --- filter B, bin 1, night 201111, compared to previous night 201109, sigma = 0.0031 --- (flat / previous inverted)(flat inverted) --- filter C, bin 1, night 201004(flat inverted) --- filter CV, bin 1, night 201107(flat inverted) --- filter I, bin 1, night 201111, compared to previous night 201109, sigma = 0.0031 --- (flat / previous inverted)(flat inverted) --- filter R, bin 1, night 201111, compared to previous night 201109, sigma = 0.0030 --- (flat / previous inverted)(flat inverted) --- filter V, bin 1, night 201111, compared to previous night 201109, sigma = 0.0031 --- (flat / previous inverted)