#
#   http://hyperphysics.phy-astr.gsu.edu/hbase/vision/solirrad.html
#
#   This is a plot of the standard NASA data for the spectral irradiance of the solar disk in watts * m*-2 * nm^-1. 
#   The upper curve is formed by joining the data points for data outside the atmosphere. 
#   The lower curve is attributed to the Earth's surface under the condition described as "air mass 2". 
#   This designation corresponds to an angle of 60° between the zenith and the Sun. 
#   The data for the surface is from 
#   Brandhorst, et al.,
#   Interim solar cell testing procedures for terrestrial applications, 
#   NASA Rep. TM X-71771 (Lewis Research Center) 1975. 
#   The points are actually calculated using the data from outside the atmosphere 
#   assuming a water content of 20 mmHg and ozone 3.4 mm Hg. 
#   The data for outside the atmosphere is from 
#   Thekaekara, M. P., 
#   Solar energy outside the earth's atmosphere, 
#   Solar Energy 14, 109 (1973).

Wavelength  Energy
300	0
310	1
320	50
330	105
340	177
350	217
360	255
370	320
380	344
390	371
400	530
410	693
420	737
430	737
440	867
450	1022
460	1089
470	1107
480	1167
490	1133
500	1165
510	1147
520	1136
530	1159
540	1140
550	1120
560	1111
570	1134
580	1147
590	1148
600	1135
610	1137
620	1137
630	1137
640	1141
650	1140
660	1136
670	1127
680	1119
690	1114
700	1102
710	1089
720	1071
730	1058
740	1040
750	1026
760	660
770	997
780	981
790	965
800	950
810	850
820	900
830	898
