(*TEST* flat inverted) --- filter SG, bin 2, night 220908, compared to previous night 220703, sigma = 0.0045 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter V, bin 2, night 220908, compared to previous night 220906, sigma = 0.0116 --- (flat / previous inverted)
(flat inverted) --- filter B, bin 2, night 220811
(flat inverted) --- filter SG, bin 2, night 220703
(flat inverted) --- filter SI, bin 2, night 220811
(flat inverted) --- filter SR, bin 2, night 220908
(flat inverted) --- filter V, bin 2, night 220908