CRTM_ICESURFACE_ISVALID  1
CRTM_LANDSURFACE_ISVALID  1
CRTM_SENSORDATA_ISVALID  1
CRTM_SNOWSURFACE_ISVALID  1
CRTM_SURFACE_ISCOVERAGEVALID  1
CRTM_WATERSURFACE_ISVALID  1
DISPLAY_MESSAGE  1