This table behaves in a way similar to all tables throughout the SYRTHES user graphical interface.
Most of the time, only one band is considered (grey calculation). If several bands are defined, one underlines that all material properties have to be defined on all bands. One reminds that the different spectral bands are defined in the window "spectral parameters".
If all material have the same emissivity, the option "-1" can be used in the reference column.