Phase angle    Brightness      Error
(degree)  (arbitrary units) (arbit.units)
   10.0           0.05         0.04
   15.0           0.09         0.07
   20.0           0.10         0.08
   25.0           0.05         0.04
   30.0           0.15         0.11
   40.0           0.04         0.03
   50.0           0.02         0.02
   60.0           0.02         0.02
   70.0           0.02         0.02
   80.0           0.02         0.01
   90.0           0.01         0.01
  100.0           0.01         0.01
  110.0           0.02         0.01
  120.0           0.02         0.01
  130.0           0.04         0.03
  140.0           0.05         0.04
  150.0           0.44         0.30
  160.0           3.18         1.99
  165.0          19.96        12.03