# extracted from http://www.astrium-geo.com/files/pmedia/public/r453_9_spectralsensivity.xls
# second column HRG1, third column HRG2
600 0.001535  0.001745
605 0.019305  0.022038
610 0.103781  0.116501
615 0.297811  0.315257
620 0.526345  0.533561
625 0.714440  0.704904
630 0.847421  0.826364
635 0.926403  0.902145
640 0.975478  0.951531
645 0.995459  0.979576
650 1.000000  0.994215
655 0.987495  1.000000
660 0.962458  0.997277
665 0.923905  0.981831
670 0.874583  0.944978
675 0.814715  0.863249
680 0.722553  0.717093
685 0.594786  0.533961
690 0.439075  0.356009
695 0.293341  0.222939
700 0.178245  0.132724
705 0.104555  0.079241
710 0.059717  0.047563
715 0.034760  0.029092
720 0.019725  0.017980
725 0.011370  0.011095
730 0.006668  0.006826
735 0.003528  0.004189
740 0.002135  0.002499
