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 part of the interior deposits and floor of Firsoff Crater. Orbit Number: 50908 Latitude: 2.67775 Longitude: 350.784 Instrument: VIS Captured: 2013-06-05 19:31 http://photojournal.jpl.nasa.gov/catalog/PIA21282
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 part of the interior deposit of Firsoff Crater. The dark blue material is most likely basaltic sand. Orbit Number: 43854 Latitude: 2.72924 Longitude: 350.449 Instrument: VIS Captured: 2011-11-03 05:57 http://photojournal.jpl.nasa.gov/catalog/PIA21018
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 part of the interior deposit in Firsoff Crater. The dark blue material is most likely basaltic sand. Orbit Number: 43467 Latitude: 2.73971 Longitude: 350.606 Instrument: VIS Captured: 2011-10-02 09:29 http://photojournal.jpl.nasa.gov/catalog/PIA21011
Today's VIS image shows part of the floor of Firsoff Crater. Located in Arabia Terra, Firsoff Crater, and the neighboring Crommelin Crater, contain large layered deposits on the crater floor. The north side of the smaller crater at the bottom of the image shows the layering. Wind action has modified the deposit. Firsoff Crater is 90 km in diameter (56 miles). Orbit Number: 94812 Latitude: 2.77617 Longitude: 350.268 Instrument: VIS Captured: 2023-04-30 02:58 https://photojournal.jpl.nasa.gov/catalog/PIA26175
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 part of the floor of Firsoff Crater. Located in southern Arabia Terra, Firsoff Crater, and the neighboring Crommelin Crater, have large layered deposits on the crater floor. The circular feature at the bottom of the image is a smaller crater within Firsoff Crater. The layering of the interior deposit can be seen in the northern side of this smaller crater. Wind action has modified the large deposit. In this color combination dark blue typically indicates basaltic sand. Firsoff Crater is 90 km (56 miles) in diameter. The THEMIS VIS camera is capable of capturing color images of the Martian surface using five different color filters. In this mode of operation, the spatial resolution and coverage of the image must be reduced to accommodate the additional data volume produced from using multiple filters. To make a color image, three of the five filter images (each in grayscale) are selected. Each is contrast enhanced and then converted to a red, green, or blue intensity image. These three images are then combined to produce a full color, single image. Because the THEMIS color filters don't span the full range of colors seen by the human eye, a color THEMIS image does not represent true color. Also, because each single-filter image is contrast enhanced before inclusion in the three-color image, the apparent color variation of the scene is exaggerated. Nevertheless, the color variation that does appear is representative of some change in color, however subtle, in the actual scene. Note that the long edges of THEMIS color images typically contain color artifacts that do not represent surface variation. Orbit Number: 94812 Latitude: 2.77617 Longitude: 350.268 Instrument: VIS Captured: 2023-04-30 02:58 https://photojournal.jpl.nasa.gov/catalog/PIA26134
Today's false color image shows part of Firsoff Crater, located north of Meridiani Planum. Dark blue tones in the false color filter combination are basaltic sands. 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. Orbit Number: 63185 Latitude: 2.88676 Longitude: 351.048 Instrument: VIS Captured: 2016-03-12 10:38 https://photojournal.jpl.nasa.gov/catalog/PIA23222
Dark dunes are located on the floor of an unnamed crater inside Firsoff Crater in this image captured by NASA 2001 Mars Odyssey spacecraft.
In the area between Crommelin and Firsoff craters, NASA Mars Reconnaissance Orbiter saw heavily cratered terrain with deposits that record Martian geologic history and stratigraphy.
This VIS image shows parts of Crommelin and Firsoff Craters. Both craters contain large mounds of layered materials on the crater floor. This material was deposited after the craters formed and may have been created by the same processes. These craters are located near Meridiani Planum. 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. Orbit Number: 61064 Latitude: 3.88172 Longitude: 350.316 Instrument: VIS Captured: 2015-09-19 18:22 https://photojournal.jpl.nasa.gov/catalog/PIA22776