(*TEST* flat inverted) --- filter SG, bin 2, night 210320, compared to previous night 210316, sigma = 0.0085 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter SR, bin 2, night 210320, compared to previous night 210316, sigma = 0.0086 --- (flat / previous inverted)
(flat inverted) --- filter B, bin 2, night 210317
(flat inverted) --- filter SG, bin 2, night 210320
(flat inverted) --- filter SI, bin 2, night 210317
(flat inverted) --- filter SR, bin 2, night 210320
(flat inverted) --- filter V, bin 2, night 210316