Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Philip Christensen at Arizona State University. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Science Mission Directorate, Washington, D.C. Please see the THEMIS Data Citation Note for details on crediting THEMIS images. The Hubble images show ejecta from the impact that appear as rays stretching out from the. Note that the long edges of THEMIS color images typically contain color artifacts that do not represent surface variation. These images from NASA’s Hubble Space Telescope, taken (left to right) 22 minutes, 5 hours, and 8.2 hours after NASA’s Double Asteroid Redirection Test (DART) intentionally impacted Dimorphos, show expanding plumes of ejecta from the asteroid’s body. Nevertheless, the color variation that does appear is representative of some change in color, however subtle, in the actual scene. 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. 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. These three images are then combined to produce a full color, single image. Each is contrast enhanced and then converted to a red, green, or blue intensity image. To make a color image, three of the five filter images (each in grayscale) are selected. 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. The THEMIS VIS camera is capable of capturing color images of the Martian surface using five different color filters. Located in Arabia Terra near Mawrth Vallis, Oyama Crater is 101km (63 miles) in diameter. Today's false color image shows part of Oyama Crater. These false color images may reveal subtle variations of the surface not easily identified in a single band image. The data from different filters can be combined in multiple ways to create a false color image. The THEMIS VIS camera contains 5 filters.
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