# extracted from http://www.astrium-geo.com/files/pmedia/public/r453_9_spectralsensivity.xls
# second column HRG1, third column HRG2
480 0.004554  0.007167
485 0.038874  0.053999
490 0.137335  0.178805
495 0.299142  0.371860
500 0.461414  0.557052
505 0.595227  0.696042
510 0.703512  0.795898
515 0.787082  0.865422
520 0.862898  0.920771
525 0.920034  0.962673
530 0.965061  0.983839
535 0.990296  1.000000
540 1.000000  0.996189
545 0.992250  0.978262
550 0.968557  0.949654
555 0.925762  0.904501
560 0.877334  0.846818
565 0.820091  0.789524
570 0.752829  0.722947
575 0.684687  0.661094
580 0.611673  0.593721
585 0.535098  0.525630
590 0.448032  0.456512
595 0.346618  0.377635
600 0.247879  0.294302
605 0.155939  0.205271
610 0.092127  0.132341
615 0.049715  0.076655
620 0.026250  0.041941
625 0.013384  0.021967
630 0.006922  0.011728
635 0.003925  0.006732
640 0.002766  0.003863
