(*TEST* flat inverted) --- filter SG, bin 2, night 210205, compared to previous night 210115, sigma = 0.0121 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter SR, bin 2, night 210205, compared to previous night 210115, sigma = 0.0125 --- (flat / previous inverted)
(flat inverted) --- filter B, bin 2, night 210202
(flat inverted) --- filter SG, bin 2, night 210205
(flat inverted) --- filter SI, bin 2, night 210129
(flat inverted) --- filter SR, bin 2, night 210205
(flat inverted) --- filter V, bin 2, night 210130