9, channel 9 SRF extracted from GHMI_Preliminary_Relative_Spectral_Response.xlsx (release June 2026) Number of data points: 351 Wavenumber (cm-1) Filter response 1877.934272 0.000099 1878.287002 0.000104 1878.639865 0.000109 1878.992860 0.000114 1879.345988 0.000120 1879.699248 0.000126 1880.052641 0.000132 1880.406168 0.000139 1880.759827 0.000146 1881.113619 0.000154 1881.467545 0.000163 1881.821603 0.000172 1882.175795 0.000181 1882.530120 0.000192 1882.884579 0.000203 1883.239171 0.000215 1883.593897 0.000228 1883.948757 0.000242 1884.303750 0.000257 1884.658877 0.000274 1885.014138 0.000291 1885.369532 0.000310 1885.725061 0.000331 1886.080724 0.000353 1886.436521 0.000377 1886.792453 0.000403 1887.148519 0.000432 1887.504719 0.000462 1887.861053 0.000496 1888.217523 0.000532 1888.574127 0.000572 1888.930865 0.000615 1889.287739 0.000662 1889.644747 0.000714 1890.001890 0.000770 1890.359168 0.000832 1890.716582 0.000899 1891.074130 0.000973 1891.431814 0.001055 1891.789633 0.001145 1892.147588 0.001243 1892.505678 0.001352 1892.863903 0.001473 1893.222264 0.001606 1893.580761 0.001754 1893.939394 0.001918 1894.298163 0.002100 1894.657067 0.002303 1895.016108 0.002529 1895.375284 0.002782 1895.734597 0.003064 1896.094046 0.003381 1896.453632 0.003737 1896.813354 0.004137 1897.173212 0.004588 1897.533207 0.005097 1897.893338 0.005673 1898.253607 0.006327 1898.614012 0.007069 1898.974554 0.007914 1899.335233 0.008879 1899.696049 0.009982 1900.057002 0.011246 1900.418092 0.012698 1900.779320 0.014370 1901.140684 0.016300 1901.502187 0.018533 1901.863827 0.021123 1902.225604 0.024135 1902.587519 0.027644 1902.949572 0.031744 1903.311762 0.036544 1903.674091 0.042175 1904.036558 0.048797 1904.399162 0.056597 1904.761905 0.065799 1905.124786 0.076667 1905.487805 0.089511 1905.850962 0.104690 1906.214258 0.122615 1906.577693 0.143740 1906.941266 0.168559 1907.304978 0.197579 1907.668829 0.231282 1908.032818 0.270076 1908.396947 0.314222 1908.761214 0.363732 1909.125620 0.418300 1909.490166 0.477216 1909.854851 0.539322 1910.219675 0.603050 1910.584639 0.666504 1910.949742 0.727636 1911.314985 0.784460 1911.680367 0.835305 1912.045889 0.878955 1912.411551 0.914806 1912.777353 0.942824 1913.143294 0.963535 1913.509376 0.977825 1913.875598 0.986786 1914.241960 0.991568 1914.608463 0.993249 1914.975105 0.992773 1915.341889 0.990932 1915.708812 0.988337 1916.075877 0.985453 1916.443082 0.982603 1916.810427 0.980012 1917.177914 0.977799 1917.545542 0.975992 1917.913310 0.974674 1918.281220 0.973810 1918.649271 0.973356 1919.017463 0.973252 1919.385797 0.973420 1919.754271 0.973812 1920.122888 0.974339 1920.491646 0.974944 1920.860546 0.975586 1921.229587 0.976166 1921.598770 0.976666 1921.968095 0.977053 1922.337562 0.977308 1922.707172 0.977415 1923.076923 0.977376 1923.446817 0.977193 1923.816853 0.976877 1924.187031 0.976447 1924.557352 0.975912 1924.927815 0.975332 1925.298421 0.974727 1925.669170 0.974112 1926.040062 0.973515 1926.411096 0.972965 1926.782274 0.972482 1927.153594 0.972091 1927.525058 0.971782 1927.896665 0.971611 1928.268415 0.971566 1928.640309 0.971627 1929.012346 0.971839 1929.384526 0.972176 1929.756851 0.972631 1930.129319 0.973219 1930.501931 0.973870 1930.874686 0.974606 1931.247586 0.975441 1931.620630 0.976319 1931.993818 0.977244 1932.367150 0.978201 1932.740626 0.979153 1933.114247 0.980134 1933.488012 0.981117 1933.861922 0.982047 1934.235977 0.982957 1934.610176 0.983831 1934.984520 0.984638 1935.359009 0.985367 1935.733643 0.986044 1936.108422 0.986646 1936.483346 0.987178 1936.858416 0.987637 1937.233630 0.988038 1937.608991 0.988357 1937.984496 0.988611 1938.360147 0.988801 1938.735944 0.988918 1939.111887 0.988991 1939.487975 0.989014 1939.864210 0.988987 1940.240590 0.988917 1940.617116 0.988811 1940.993789 0.988698 1941.370608 0.988555 1941.747573 0.988393 1942.124684 0.988202 1942.501943 0.988010 1942.879347 0.987807 1943.256899 0.987596 1943.634597 0.987379 1944.012442 0.987145 1944.390434 0.986920 1944.768573 0.986688 1945.146859 0.986454 1945.525292 0.986207 1945.903872 0.985956 1946.282600 0.985694 1946.661476 0.985423 1947.040498 0.985142 1947.419669 0.984860 1947.798987 0.984562 1948.178453 0.984248 1948.558067 0.983925 1948.937829 0.983595 1949.317739 0.983286 1949.697797 0.982992 1950.078003 0.982723 1950.458358 0.982492 1950.838861 0.982297 1951.219512 0.982171 1951.600312 0.982119 1951.981261 0.982154 1952.362358 0.982289 1952.743605 0.982528 1953.125000 0.982875 1953.506544 0.983358 1953.888238 0.983970 1954.270080 0.984689 1954.652072 0.985556 1955.034213 0.986543 1955.416504 0.987641 1955.798944 0.988825 1956.181534 0.990071 1956.564273 0.991371 1956.947162 0.992694 1957.330202 0.993964 1957.713391 0.995242 1958.096730 0.996467 1958.480219 0.997551 1958.863859 0.998491 1959.247649 0.999230 1959.631589 0.999732 1960.015680 1.000000 1960.399922 0.999986 1960.784314 0.999708 1961.168857 0.999156 1961.553550 0.998343 1961.938395 0.997297 1962.323391 0.996058 1962.708538 0.994682 1963.093836 0.993238 1963.479285 0.991800 1963.864886 0.990428 1964.250638 0.989251 1964.636542 0.988363 1965.022598 0.987841 1965.408805 0.987786 1965.795164 0.988235 1966.181675 0.989203 1966.568338 0.990641 1966.955153 0.992419 1967.342121 0.994256 1967.729240 0.995835 1968.116512 0.996538 1968.503937 0.995566 1968.891514 0.991897 1969.279244 0.984326 1969.667126 0.971552 1970.055162 0.952415 1970.443350 0.926058 1970.831691 0.892304 1971.220185 0.851634 1971.608833 0.805198 1971.997634 0.754430 1972.386588 0.700846 1972.775695 0.645709 1973.164957 0.589995 1973.554371 0.534435 1973.943940 0.479729 1974.333662 0.426558 1974.723539 0.375688 1975.113569 0.327868 1975.503753 0.283744 1975.894092 0.243776 1976.284585 0.208188 1976.675232 0.176977 1977.066034 0.149950 1977.456990 0.126784 1977.848101 0.107091 1978.239367 0.090444 1978.630787 0.076428 1979.022363 0.064662 1979.414093 0.054796 1979.805979 0.046526 1980.198020 0.039590 1980.590216 0.033759 1980.982567 0.028858 1981.375074 0.024731 1981.767737 0.021250 1982.160555 0.018306 1982.553529 0.015811 1982.946659 0.013691 1983.339944 0.011885 1983.733386 0.010343 1984.126984 0.009023 1984.520738 0.007890 1984.914649 0.006915 1985.308716 0.006074 1985.702939 0.005347 1986.097319 0.004717 1986.491855 0.004170 1986.886549 0.003694 1987.281399 0.003278 1987.676406 0.002915 1988.071571 0.002596 1988.466892 0.002317 1988.862371 0.002071 1989.258007 0.001854 1989.653800 0.001663 1990.049751 0.001494 1990.445860 0.001344 1990.842126 0.001211 1991.238550 0.001093 1991.635132 0.000988 1992.031873 0.000894 1992.428771 0.000810 1992.825827 0.000735 1993.223042 0.000668 1993.620415 0.000608 1994.017946 0.000553 1994.415636 0.000505 1994.813485 0.000461 1995.211492 0.000421 1995.609659 0.000386 1996.007984 0.000353 1996.406468 0.000324 1996.805112 0.000298 1997.203915 0.000274 1997.602877 0.000252 1998.001998 0.000232 1998.401279 0.000214 1998.800720 0.000198 1999.200320 0.000183 1999.600080 0.000169 2000.000000 0.000157 2000.400080 0.000145 2000.800320 0.000135 2001.200720 0.000125 2001.601281 0.000117 2002.002002 0.000109 2002.402883 0.000101 2002.803925 0.000094 2003.205128 0.000088 2003.606492 0.000082 2004.008016 0.000077 2004.409701 0.000072 2004.811548 0.000068 2005.213555 0.000063 2005.615724 0.000059 2006.018054 0.000056 2006.420546 0.000053 2006.823199 0.000050 2007.226014 0.000047 2007.628990 0.000044 2008.032129 0.000042 2008.435429 0.000039 2008.838891 0.000037 2009.242516 0.000035 2009.646302 0.000033 2010.050251 0.000031