PDS_VERSION_ID                = PDS3                                          
                                                                              
DATA_SET_ID                   = "MEX-M-MARSIS-5-DDR-SS-TEC-EXT1-V1.0"         
PRODUCT_ID                    = "IONOPROCESS_REPORT3"                         
PRODUCT_CREATION_TIME         = 2009-04-22T14:00                              
                                                                              
RECORD_TYPE                   = FIXED_LENGTH                                  
RECORD_BYTES                  = 80                                            
RELEASE_ID                    = 0001                                          
REVISION_ID                   = 0000                                          
                                                                              
^PDF_DOCUMENT                 = "IONOPROCESS_REPORT3.PDF"                     
^ASCII_DOCUMENT               = "IONOPROCESS_REPORT3.ASC"                     
^PNG1_DOCUMENT                = "IONOPROCESS_REPORT3_EQU1.PNG"                
^PNG2_DOCUMENT                = "IONOPROCESS_REPORT3_EQU2.PNG"                
^PNG3_DOCUMENT                = "IONOPROCESS_REPORT3_FIG1.PNG"                
^PNG4_DOCUMENT                = "IONOPROCESS_REPORT3_FIG2.PNG"                
^PNG5_DOCUMENT                = "IONOPROCESS_REPORT3_FIG3.PNG"                
                                                                              
OBJECT                        = PDF_DOCUMENT                                  
  DOCUMENT_NAME               = "MARSIS DERIVED ENHANCED IONOSPHERIC          
                                 CALIBRATION DATA"                            
  DOCUMENT_FORMAT             = "ADOBE PDF"                                   
  DESCRIPTION                 = "A planetary ionosphere is a perturbing       
                                 environment for radar waves.                 
                                 Unfortunately, it is an unavoidable          
                                 obstacle along the propagation path of       
                                 signals emitting by orbiting radar           
                                 sounders. The Mars Advanced Radar for        
                                 Subsurface and Ionospheric Sounding          
                                 (MARSIS) isan instrument onboard the         
                                 European Space Agency's Mars Express         
                                 spacecraft. In order to deeply penetrate     
                                 the surface, MARSIS operates at MHz          
                                 frequencies for which the perturbations      
                                 due the Martian ionosphere can be            
                                 significant. Therefore, prior to any         
                                 analyze, MARSIS data need to be corrected    
                                 from the ionospheric effects.                
                                                                              
                                 The MARSIS derived enhanced ionospheric      
                                 calibration dataset enables to correct       
                                 the MARSIS signal from the ionospheric       
                                 distortio. The aim of this document is to    
                                 provide information on the generation and    
                                 the description of the parameters forming    
                                 this derive dataset, and to explain their    
                                 use when needed."                            
  DOCUMENT_TOPIC_TYPE         = "DERIVATION AND ANALYSIS TECHNIQUES"          
  INTERCHANGE_FORMAT          = "BINARY"                                      
  PUBLICATION_DATE            = 2009-04-22                                    
END_OBJECT                    = PDF_DOCUMENT                                  
                                                                              
OBJECT                        = ASCII_DOCUMENT                                
   DOCUMENT_NAME              = "MARSIS DERIVED ENHANCED IONOSPHERIC          
                                 CALIBRATION DATA"                            
   PUBLICATION_DATE           = 2009-04-22                                    
   DOCUMENT_TOPIC_TYPE        = "DERIVATION AND ANALYSIS TECHNIQUES"          
   INTERCHANGE_FORMAT         = ASCII                                         
   DOCUMENT_FORMAT            = TEXT                                          
   DESCRIPTION                = "A planetary ionosphere is a perturbing       
                                 environment for radar waves.                 
                                 Unfortunately, it is an unavoidable          
                                 obstacle along the propagation path of       
                                 signals emitting by orbiting radar           
                                 sounders. The Mars Advanced Radar for        
                                 Subsurface and Ionospheric Sounding          
                                 (MARSIS) isan instrument onboard the         
                                 European Space Agency's Mars Express         
                                 spacecraft. In order to deeply penetrate     
                                 the surface, MARSIS operates at MHz          
                                 frequencies for which the perturbations      
                                 due the Martian ionosphere can be            
                                 significant. Therefore, prior to any         
                                 analyze, MARSIS data need to be corrected    
                                 from the ionospheric effects.                
                                                                              
                                 The MARSIS derived enhanced ionospheric      
                                 calibration dataset enables to correct       
                                 the MARSIS signal from the ionospheric       
                                 distortio. The aim of this document is to    
                                 provide information on the generation and    
                                 the description of the parameters forming    
                                 this derive dataset, and to explain their    
                                 use when needed."                            
END_OBJECT                    = ASCII_DOCUMENT                                
                                                                              
OBJECT                        = PNG1_DOCUMENT                                 
   DOCUMENT_NAME              = "IONOPROCESS_REPORT3_EQU1.PNG"                
   PUBLICATION_DATE           = 2009-04-22                                    
   DOCUMENT_TOPIC_TYPE        = "DERIVATION AND ANALYSIS TECHNIQUES"          
   FILES                      = 1                                             
   ENCODING_TYPE              = PNG                                           
   INTERCHANGE_FORMAT         = BINARY                                        
   DOCUMENT_FORMAT            = PNG                                           
   DESCRIPTION                = "Equation (1) from the document               
                                 IONOPROCESS_REPORT3"                         
END_OBJECT                    = PNG1_DOCUMENT                                 
                                                                              
OBJECT                        = PNG2_DOCUMENT                                 
   DOCUMENT_NAME              = "IONOPROCESS_REPORT3_EQU2.PNG"                
   PUBLICATION_DATE           = 2009-04-22                                    
   DOCUMENT_TOPIC_TYPE        = "DERIVATION AND ANALYSIS TECHNIQUES"          
   FILES                      = 1                                             
   ENCODING_TYPE              = PNG                                           
   INTERCHANGE_FORMAT         = BINARY                                        
   DOCUMENT_FORMAT            = PNG                                           
   DESCRIPTION                = "Equation (2) from the document               
                                 IONOPROCESS_REPORT3"                         
END_OBJECT                    = PNG2_DOCUMENT                                 
                                                                              
OBJECT                        = PNG3_DOCUMENT                                 
   DOCUMENT_NAME              = "IONOPROCESS_REPORT3_FIG1.PNG"                
   PUBLICATION_DATE           = 2009-04-22                                    
   DOCUMENT_TOPIC_TYPE        = "DERIVATION AND ANALYSIS TECHNIQUES"          
   FILES                      = 1                                             
   ENCODING_TYPE              = PNG                                           
   INTERCHANGE_FORMAT         = BINARY                                        
   DOCUMENT_FORMAT            = PNG                                           
   DESCRIPTION                = "Fig. 1. Data processing executed for each    
                                 frame.  The results are the parameters       
                                 [a1 ; a2 ; a3] and TEC."                     
END_OBJECT                    = PNG3_DOCUMENT                                 
                                                                              
OBJECT                        = PNG4_DOCUMENT                                 
   DOCUMENT_NAME              = "IONOPROCESS_REPORT3_FIG2.PNG"                
   PUBLICATION_DATE           = 2009-04-22                                    
   DOCUMENT_TOPIC_TYPE        = "DERIVATION AND ANALYSIS TECHNIQUES"          
   FILES                      = 1                                             
   ENCODING_TYPE              = PNG                                           
   INTERCHANGE_FORMAT         = BINARY                                        
   DOCUMENT_FORMAT            = PNG                                           
   DESCRIPTION                = "Fig. 2. The signal to noise ratio (down)     
                                 for the MARSIS orbit 2503 (up).  The         
                                 red-dashed line indicates the defined        
                                 SNR-threshold of 15 dB.  All the frames      
                                 lower than this value have a 'flag'          
                                 equals to zero."                             
END_OBJECT                    = PNG4_DOCUMENT                                 
                                                                              
OBJECT                        = PNG5_DOCUMENT                                 
   DOCUMENT_NAME              = "IONOPROCESS_REPORT3_FIG3.PNG"                
   PUBLICATION_DATE           = 2009-04-22                                    
   DOCUMENT_TOPIC_TYPE        = "DERIVATION AND ANALYSIS TECHNIQUES"          
   FILES                      = 1                                             
   ENCODING_TYPE              = PNG                                           
   INTERCHANGE_FORMAT         = BINARY                                        
   DOCUMENT_FORMAT            = PNG                                           
   DESCRIPTION                = "Fig. 3. Example of the plot provided for     
                                 the orbit 2503 (see text for details)."      
END_OBJECT                    = PNG5_DOCUMENT                                 
                                                                              
END