Phase angle	Brightness	Error
(degree)    (arbitrary units)	(arbitrary units)
10		-1.1		1.1
15		2.3		1.1
20		2.4		0.9
25		1.3		0.8
30		-0.2		0.9
40		2.5		0.8
50		0.4		0.8
60		0.4		0.8
70		2.6		0.8
80		4.7		0.8
90		3.5		0.8
100		5.6		0.9
110		4.4		0.8
120		0.7		0.8
130		1.8		0.6
140		0.3		0.6
150		-1.8		0.5
160		1.8		0.5
165		1.6		0.6