(*TEST* flat inverted) --- filter B, bin 1, night 210325, compared to previous night 210321, sigma = 0.0097 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter C, bin 1, night 210325, compared to previous night 210321, sigma = 0.0093 --- (flat / previous inverted)
(*TEST* flat inverted) --- filter V, bin 1, night 210325, compared to previous night 210321, sigma = 0.0096 --- (flat / previous inverted)
(flat inverted) --- filter B, bin 1, night 210325
(flat inverted) --- filter C, bin 1, night 210325
(flat inverted) --- filter I, bin 1, night 210322
(flat inverted) --- filter SG, bin 1, night 180127
(flat inverted) --- filter SI, bin 1, night 180127
(flat inverted) --- filter SR, bin 1, night 210222
(flat inverted) --- filter SU, bin 1, night 210322
(flat inverted) --- filter U, bin 1, night 180125
(flat inverted) --- filter V, bin 1, night 210325
(flat inverted) --- filter Y, bin 1, night 210322
(flat inverted) --- filter ZS, bin 1, night 210322