Greetings I am trying to run an aircraft hyperspectral dataset through FLAASH. I set the file type to unknown-hsi, then select the input radiance file, and also provide the ASCII center wavelength and fwhm file, defining the columns with the dialog. After doing this, the unknown-hsi switches to unknown-msi sensor type. After filling the remaining model input parameters, then selecting "apply", I get an error opening filter function file message. I have done the same type procedure with an aviris and a hyperion dataset which worked fine. I am guessing that my ascii file is not providing the information in the way that the program expects,although it looks very similar to the aviris wavelength / fwhm file I have used. thanks very much