This tool was designed to read ATOVS data files from NOAA\'s Comprehensive Large Array-data Stewardship System (CLASS) or the EUMETSAT EARS service and to display them as false-colour brightness temperature plots. The program can also be automated to provide a quick check on the received data. Data from both the HIRS/3 20-channel thermal sounder, and the 20 channels of the AMSU-A and AMSU-B microwave radiometers may be displayed.