4,   channel 4 SRF extracted from GHMI_Preliminary_Relative_Spectral_Response.xlsx (release June 2026)
Number of data points:
91
Wavenumber (cm-1)   Filter response
    10989.010989       0.000658
    11001.100110       0.000540
    11013.215859       0.001732
    11025.358324       0.000894
    11037.527594       0.000988
    11049.723757       0.000278
    11061.946903       0.001266
    11074.197121       0.000794
    11086.474501       0.001715
    11098.779134       0.002248
    11111.111111       0.002321
    11123.470523       0.003051
    11135.857461       0.004287
    11148.272018       0.006670
    11160.714286       0.008318
    11173.184358       0.011610
    11185.682327       0.015251
    11198.208287       0.021420
    11210.762332       0.028497
    11223.344557       0.043980
    11235.955056       0.066219
    11248.593926       0.098362
    11261.261261       0.133601
    11273.957159       0.175406
    11286.681716       0.228657
    11299.435028       0.296357
    11312.217195       0.374174
    11325.028313       0.454819
    11337.868481       0.533453
    11350.737798       0.602797
    11363.636364       0.667772
    11376.564278       0.728612
    11389.521640       0.792578
    11402.508552       0.881307
    11415.525114       0.954247
    11428.571429       0.990293
    11441.647597       1.000000
    11454.753723       0.998371
    11467.889908       0.995305
    11481.056257       0.991075
    11494.252874       0.985812
    11507.479862       0.982729
    11520.737327       0.984079
    11534.025375       0.985286
    11547.344111       0.985238
    11560.693642       0.983388
    11574.074074       0.982777
    11587.485516       0.983088
    11600.928074       0.982480
    11614.401858       0.983420
    11627.906977       0.983733
    11641.443539       0.986360
    11655.011655       0.988697
    11668.611435       0.993100
    11682.242991       0.998027
    11695.906433       0.998992
    11709.601874       0.988612
    11723.329426       0.957476
    11737.089202       0.895729
    11750.881316       0.810411
    11764.705882       0.744712
    11778.563015       0.680153
    11792.452830       0.609665
    11806.375443       0.536192
    11820.330969       0.456629
    11834.319527       0.378950
    11848.341232       0.306543
    11862.396204       0.243184
    11876.484561       0.190377
    11890.606421       0.146333
    11904.761905       0.109170
    11918.951132       0.075795
    11933.174224       0.048159
    11947.431302       0.031142
    11961.722488       0.020259
    11976.047904       0.013308
    11990.407674       0.008870
    12004.801921       0.005971
    12019.230769       0.004102
    12033.694344       0.002909
    12048.192771       0.002103
    12062.726176       0.001534
    12077.294686       0.001164
    12091.898428       0.000877
    12106.537530       0.000670
    12121.212121       0.000517
    12135.922330       0.000403
    12150.668287       0.000323
    12165.450122       0.000260
    12180.267966       0.000199
    12195.121951       0.000141