(*TEST* flat inverted) --- filter B, bin 2, night 211116, compared to previous night 211114, sigma = 0.0054 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter SG, bin 2, night 211116, compared to previous night 211103, sigma = 0.0146 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter V, bin 2, night 211116, compared to previous night 211114, sigma = 0.0120 --- (flat / previous inverted)