(*TEST* flat inverted) --- filter I, bin 1, night 221121, compared to previous night 221117, sigma = 0.0052 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter R, bin 1, night 221121, compared to previous night 221117, sigma = 0.0418 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter V, bin 1, night 221121, compared to previous night 221117, sigma = 0.0387 --- (flat / previous inverted)
(flat inverted) --- filter B, bin 1, night 221117
(flat inverted) --- filter GR, bin 1, night 220219
(flat inverted) --- filter I, bin 1, night 221121
(flat inverted) --- filter R, bin 1, night 221121
(flat inverted) --- filter SU, bin 1, night 221028
(flat inverted) --- filter V, bin 1, night 221117