The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations of the surface not easily identified in a single band image. Today's false color image shows sand dunes on the floor of an unnamed crater in Terra Cimmeria. Dark blue in this filter combination indicates basaltic sand. Orbit Number: 69566 Latitude: -9.20212 Longitude: 129.12 Instrument: VIS Captured: 2017-08-20 03:02 https://photojournal.jpl.nasa.gov/catalog/PIA24453