1, channel 1 SRF extracted from http://www.star.nesdis.noaa.gov/smcd/spb/fwu/homepage/AVHRR/spec_resp_func/webdata/AVHRR1_SRF_only.xls sheet A103C001; August 2014 Number of data points: 23 Wavenumber (cm-1) Filter response 10416.666667 0.002000 10526.315790 0.006000 10638.297872 0.018000 10752.688172 0.038000 10869.565217 0.048000 10989.010989 0.035000 11111.111111 0.017000 11363.636364 0.005000 13513.513514 0.007000 13698.630137 0.013000 13888.888889 0.027000 14084.507042 0.055000 14285.714286 0.132000 14492.753623 0.325000 14705.882353 0.698000 15151.515151 0.997000 15625.000000 1.000000 16129.032258 0.919000 16666.666667 0.806000 16949.152542 0.813000 17241.379310 0.739000 17543.859649 0.449000 17857.142857 0.071000