(*TEST* flat inverted) --- filter B, bin 2, night 220227, compared to previous night 220221, sigma = 0.0338 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter SI, bin 2, night 220227, compared to previous night 220221, sigma = 0.0229 --- (flat / previous inverted)
(flat inverted) --- filter B, bin 2, night 220227
(flat inverted) --- filter SG, bin 2, night 220217
(flat inverted) --- filter SI, bin 2, night 220221
(flat inverted) --- filter SR, bin 2, night 220217
(flat inverted) --- filter V, bin 2, night 220221