(*TEST* flat inverted) --- filter V, bin 2, night 210218, compared to previous night 210211, sigma = 0.1495 --- (flat / previous inverted)(flat inverted) --- filter B, bin 2, night 210202(flat inverted) --- filter SG, bin 2, night 210216(flat inverted) --- filter SI, bin 2, night 210217(flat inverted) --- filter SR, bin 2, night 210205(flat inverted) --- filter V, bin 2, night 210218
