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        Summary 
        
         
          
           | Description | 
           
             English: EATCS diagram 
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           | Date | 
           17 August 2011 | 
          
          
           | Source | 
            http://www.nasa.gov/pdf/167129main_Systems.pdf | 
          
          
           | Author | 
           NASA | 
          
         
         
        Licensing 
        
         
          
           | Public domainPublic domainfalsefalse | 
          
         
         
          
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           This file is in the  public domain because it was solely created by  NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See  Template:PD-USGov,  NASA copyright policy page or  JPL Image Use Policy.) | 
           
            
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