(*TEST* flat inverted) --- filter SR, bin 2, night 220327, compared to previous night 220305, sigma = 0.0584 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter V, bin 2, night 220327, compared to previous night 220304, sigma = 0.0182 --- (flat / previous inverted)
(flat inverted) --- filter B, bin 2, night 220313
(flat inverted) --- filter SG, bin 2, night 220305
(flat inverted) --- filter SI, bin 2, night 220325
(flat inverted) --- filter SR, bin 2, night 220305
(flat inverted) --- filter V, bin 2, night 220327