                          THEMIS: Image Detail

                                                                        
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     Crater Deformation                                                 
   (Released 20 May 2003)                                               
                                                                        
  [9] Image Context:                                                    
                                                                        
  Context image credit:                                                 
  NASA/Mars Orbiter Laser                                               
  Altimeter (MOLA) Team                                                 
  [ Find on map:                                                        
  Javascript [10]  version                                              
  ]                                                                     
  [ Find on map: CGI [11]                                               
  version ]                                                             
                                                                        
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  This crater is located                                                
  at 37 N, a latitude far                                               
  enough north that ground                                              
  ice is present, and it                                                
  sculpts the terrain when                                              
  it moves. In this image,                                              
  the western rim of the                                                
  crater has been deformed                                              
  from its original,                                                    
  presumably circular,                                                  
  shape. Note, however,                                                 
  that lobes of material                                                
  and grooves (seen best                                                
  at full resolution) in                                                
  the crater's ejecta                                                   
  blanket are still                                                     
  pristine: perhaps ground                                              
  ice moves the most on                                                 
  steep topography, such                                                
  as on a crater rim.                                                   
                                                                        
  [Questions? Email                                                     
  images@themis.asu.edu                                                 
  [12] ]                                                                
                                                                        
  [Source: ASU THEMIS                                                   
  Science Team]                                                         
                                                                        
  Note: this THEMIS visual                                              
  image has not been                                                    
  radiometrically nor                                                   
  geometrically calibrated                                              
  for this preliminary                                                  
  release. An empirical                                                 
  correction has been                                                   
  performed to remove                                                   
  instrumental effects. A                                               
  linear shift has been                                                 
  applied in the                                                        
  cross-track and                                                       
  down-track direction to                                               
  approximate spacecraft                                                
  and planetary motion.                                                 
  Fully calibrated and                                                  
  geometrically projected                                               
  images will be released                                               
  through the Planetary                                                 
  Data System in                                                        
  accordance with Project                                               
  policies at a later                                                   
  time.                                                                 
                                                                        
  NASA's Jet Propulsion                                                 
  Laboratory manages the                                                
  2001 Mars Odyssey                                                     
  mission for NASA's                                                    
  Office of Space Science,                                              
  Washington, D.C. The                                                  
  Thermal Emission Imaging                                              
  System (THEMIS) was                                                   
  developed by Arizona                                                  
  State University, Tempe,                                              
  in collaboration with                                                 
  Raytheon Santa Barbara                                                
  Remote Sensing. The                                                   
  THEMIS investigation is                                               
  led by Dr. Philip                                                     
  Christensen at Arizona                                                
  State University.                                                     
  Lockheed Martin                                                       
  Astronautics, Denver, is                                              
  the prime contractor for                                              
  the Odyssey project, and                                              
  developed and built the                                               
  orbiter. Mission                                                      
  operations are conducted                                              
  jointly from Lockheed                                                 
  Martin and from JPL, a                                                
  division of the                                                       
  California Institute of                                               
  Technology in Pasadena.                                               
                                                                        
  Image Credit:                                                         
  NASA/JPL/Arizona State                                                
  University                                                            
                                                                        
   [ Show Full-Size Image                                               
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   [ Show Full-Size Image                                               
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    Full-Size Image (TIF)                                               
           [16]  ]                                                      
                                                                        
     [ Printer-friendly                                                 
       version [17]  ]                                                  
                                                                        
                  Parameter   Value              Parameter   Value      
                                                                        
                   Latitude   37.6              Instrument   VIS        
                                                                        
                  Longitude   159.1E            Resolution   19         
                              (200.9W)                 (m)              
                                                                        
        Image Size (pixels)   3077x1409         Image Size   58.5x26.8  
                                                      (km)              
                                                                        
                                [18]  [19]                              
                                                                        
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