(*TEST* flat inverted) --- filter B, bin 2, night 210224, compared to previous night 210223, sigma = 0.0090 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter R, bin 2, night 210224, compared to previous night 210223, sigma = 0.0118 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter V, bin 2, night 210224, compared to previous night 210223, sigma = 0.0095 --- (flat / previous inverted)
(flat inverted) --- filter B, bin 2, night 210223
(flat inverted) --- filter Ic, bin 2, night 201011
(flat inverted) --- filter R, bin 2, night 210223
(flat inverted) --- filter V, bin 2, night 210223