(*TEST* flat inverted) --- filter B, bin 1, night 221118, compared to previous night 221117, sigma = 0.0323 --- (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 221117(flat inverted) --- filter R, bin 1, night 221117(flat inverted) --- filter SU, bin 1, night 221028(flat inverted) --- filter V, bin 1, night 221117
