Phase angle Brightness Error (degree) (arbitrary units) (arbit. units) 8.0 1.38 0.01 10.0 2.09 0.01 13.0 4.15 0.02 15.0 3.88 0.01 18.0 5.28 0.01 20.0 4.99 0.01 23.0 2.40 0.01 25.0 2.37 0.02 30.0 1.11 0.01 35.0 1.18 0.01 50.0 0.41 0.00 60.0 0.35 0.01 70.0 0.36 0.01 80.0 0.54 0.01 85.0 1.05 0.01 90.0 0.39 0.01 100.0 0.65 0.01 105.0 1.41 0.01 110.0 0.86 0.01 115.0 2.86 0.01 120.0 2.03 0.01 125.0 1.75 0.01 130.0 2.33 0.01 135.0 2.28 0.01 140.0 4.66 0.01 150.0 9.87 0.03 155.0 6.93 0.02 165.0 5.55 0.04