# extracted from http://www.astrium-geo.com/files/pmedia/public/r453_9_spectralsensivity.xls
# second column HRV1, third column HRV2
470	0.002	0.001
480	0.020	0.030
490	0.210	0.199
500	0.381	0.396
510	0.489	0.487
520	0.574	0.541
530	0.637	0.606
540	0.687	0.649
550	0.745	0.679
560	0.771	0.717
570	0.761	0.761
580	0.770	0.798
590	0.824	0.841
600	0.880	0.860
610	0.906	0.875
620	0.940	0.915
630	0.978	0.946
640	1.000	1.000
650	0.978	0.990
660	0.841	0.937
670	0.768	0.866
680	0.757	0.781
690	0.744	0.717
700	0.332	0.682
710	0.138	0.660
720	0.055	0.598
730	0.022	0.210
740	0.011	0.085
750	0.005	0.036
760	0.003	0.017
770	0.002	0.009
780	0.001	0.005
790	0.000	0.002
