Phase angle    Brightness      Error
(degree)  (arbitrary units) (arbit.units)
8		3.1		1.1
10		3.5		1.2
12		2.9		1.0
15		6.1		2.1
17		10.1		2.7
20		14.4		2.8
23		8.6		1.8
25		3.8		1.1
27		5.5		1.4
30		9.9		2.4
40		5.8		1.5
50		4.1		1.4
60		3.1		1.2
70		2.2		0.9
80		1.5		0.5
90		2.2		0.5
100		4.0		0.8
110		5.9		1.0
120		7.9		2.1
130		9.8		3.2
140		3.6		1.4
150		16.7		6.5
160		4.7		2.2