3,   channel 3 SRF from file MRIR_N2_chan3.txt received July 2019 from Thomas Hall
Number of data points:
35
Wavenumber (cm-1)   Filter response
      598.802400       0.000000
      602.409600       0.013000
      606.060600       0.040000
      609.756100       0.070000
      613.496900       0.107000
      617.284000       0.170000
      621.118000       0.300000
      625.000000       0.370000
      628.930800       0.427000
      632.911400       0.480000
      636.942700       0.523000
      641.025600       0.583000
      645.161300       0.690000
      649.350600       0.790000
      653.594800       0.910000
      657.894700       0.980000
      662.251700       0.997000
      666.666700       1.000000
      671.140900       0.990000
      675.675700       0.987000
      680.272100       0.990000
      684.931500       0.987000
      689.655200       0.974000
      694.444400       0.950000
      699.300700       0.887000
      704.225400       0.770000
      709.219900       0.600000
      714.285700       0.423000
      719.424500       0.300000
      724.637700       0.180000
      729.927000       0.100000
      735.294100       0.060000
      740.740700       0.030000
      746.268700       0.010000
      751.879700       0.000000