Thermal band of Landsat8

[rese_support]

I have a question about using MODO with the thermal band of Landsat8 (please, let me know if I have to address the question to a different person or forum). I can't find a proper flt file for the spectral response of this instrument. Using  landsat5_thermal.flt as template I've created a new file with L8 thermal data, but it is not working. Do you know where I can find a flt file that works for MODO? 

I'm usually not using the Modtran *flt files but rather the *rsp files as provided with the MODO software. Using the function:
Modtran4:At Sensor signal, you may use the thermal band response file:

modo_v4/sensor_resp/l5_tm/l5_tm6.rsp

To get the correct signal in the thermal band (i.e. bands 6 to 6 in the GUI).

For more complex tasks, you'd need to run modtran through the full GUI first, extract the spectra, and convolve them to the response file.