# extracted from http://www.astrium-geo.com/files/pmedia/public/r453_9_spectralsensivity.xls
# second column HRG1, third column HRG2
450 0.007464  0.002404
455 0.004067  0.001301
460 0.005395  0.003968
465 0.017444  0.015064
470 0.071550  0.080628
475 0.192873  0.238629
480 0.324311  0.428733
485 0.463166  0.603774
490 0.593012  0.698239
495 0.709886  0.756366
500 0.780102  0.795095
505 0.805984  0.832146
510 0.825111  0.876519
515 0.856381  0.919000
520 0.899473  0.949018
525 0.942841  0.963709
530 0.964566  0.964562
535 0.979570  0.968528
540 0.987196  0.981781
545 0.985272  0.989666
550 0.979347  0.993503
555 0.964185  0.989559
560 0.959336  0.990449
565 0.953113  0.988699
570 0.956378  0.989839
575 0.962695  0.995851
580 0.967378  0.995239
585 0.967674  0.988079
590 0.964506  0.984012
595 0.962269  0.978564
600 0.968248  0.981161
605 0.981829  0.991161
610 0.992025  0.996522
615 0.996530  0.999518
620 1.000000  1.000000
625 0.995827  0.990880
630 0.987102  0.976885
635 0.975932  0.961092
640 0.961462  0.944090
645 0.942947  0.927362
650 0.931916  0.919170
655 0.910068  0.896919
660 0.894833  0.863604
665 0.868687  0.789872
670 0.806388  0.656682
675 0.677602  0.475950
680 0.502260  0.308311
685 0.327185  0.186021
690 0.194901  0.109215
695 0.114245  0.066108
700 0.066509  0.040697
705 0.039346  0.025710
710 0.024274  0.016947
715 0.015702  0.011426
720 0.010869  0.008189
