(*TEST* flat inverted) --- filter Lum, bin 1, night 220106, compared to previous night 220105, sigma = 0.0032 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter V, bin 1, night 220106, compared to previous night 220105, sigma = 0.0031 --- (flat / previous inverted)
(flat inverted) --- filter B, bin 1, night 220105
(flat inverted) --- filter i', bin 1, night 211211
(flat inverted) --- filter Lum, bin 1, night 220105
(flat inverted) --- filter r', bin 1, night 211211
(flat inverted) --- filter R, bin 1, night 220105
(flat inverted) --- filter V, bin 1, night 220105