Phase angle	Brightness		
(degree)	(arbitrary units)	
5		0.0485714
10		0.0157143
15		0.0342857
20		0.0428571
25		0.0371429
30		0.0314286
40		0.0271429
50		0.04
60		0.0357143
70		0.0442857
80		0.0342857
90		0.0471429
100		0.04
110		0.0442857
120		0.06
130		0.0457143
140		0.0785714
150		0.461429
160		0.971429
165		0.5