(*TEST* flat inverted) --- filter V, bin 2, night 210209, compared to previous night 210201, sigma = 0.0797 --- (flat / previous inverted)(flat inverted) --- filter B, bin 2, night 210202(flat inverted) --- filter SG, bin 2, night 210205(flat inverted) --- filter SI, bin 2, night 210206(flat inverted) --- filter SR, bin 2, night 210205(flat inverted) --- filter V, bin 2, night 210209
