wavel.	cross sect.	standard deviation 
------------------------------------------
380	4.45e-19	3.7e-22
390	4.45e-19	1.2e-20
400	4.56e-19	1.7e-20
410	4.68e-19	7.03e-20
420	4.40e-19	8.11e-20
430	3.92e-19	6.81e-20
440	3.79e-19	4.17e-20
450	3.73e-19	6.58e-20
460	3.63e-19	3.7e-20
470	2.94e-19	2.8e-20
480	2.79e-19	2.5e-20
490	2.30e-19	2.4e-20
500	1.76e-19	1.7e-20
510	1.89e-19	2.1e-20
520	1.54e-19	2.4e-20
530	1.37e-19	1.9e-20
540	1.12e-19	1.9e-20
550	1.08e-19	1.8e-20
560	8.04e-20	8.6e-21
570	9.11e-20	6.3e-21
580	7.55e-20	3.7e-21
590	7.33e-20	3.7e-21
600	6.14e-20	3.0e-21
610	4.76e-20	2.2e-21
620	4.84e-20	2.6e-21
630	3.72e-20	1.5e-21
640	3.39e-20	2.4e-21
650	3.29e-20	1.8e-21
660	2.38e-20	1.1e-21
670	2.47e-20	1.5e-21
680	2.47e-20	1.4e-21
690	1.72e-20	1.0e-21
700	1.49e-20	6.0e-22
710	1.47e-20	6.7e-22
720	1.07e-20	4.5e-22
730	9.60e-21	2.6e-22
740	9.23e-21	3.0e-22
750	8.26e-21	3.0e-22
760	6.14e-21	3.0e-22