| Description: The wavelenth_file_name attribute identifies the name of the file that describes wavelength sampling in a CRISM EDR, RDR, or CDR. There are two aspects to the wavelength sampling. One is the wavelength of light falling on each attribute of the 480-row detector. The second is the selection of which rows are included in downlink. For each detector there is a menu of four options; which option is selected is given in wavelength_filter, which has a value of 0, 1, 2, or 3. For an EDR, the wavelength file is a 5-column, 480-row text file. The five attributes in each row are the row number and a 0 or 1 for wavelength_filter 0, 1, 2 and 3, indicating if the row is included in the EDR when that option is selected in wavelength_filter. For an RDR or CDR, the wavelength file is an image whose value at the location of a detector attribute is the center wavelength of that attribute, in nanometers. |