PDS_VERSION_ID          = PDS3                                                
RECORD_TYPE             = STREAM                                              
                                                                              
OBJECT                  = TEXT                                                
  PUBLICATION_DATE        = 2009-04-01                                        
  NOTE                    = "                                                 
    DOCINFO.TXT describes the contents of the DOCUMENT directory."            
END_OBJECT              = TEXT                                                
END                                                                           
                                                                              
This directory contains documents relevant to the Mars Express MARSIS         
Active Ionospheric Sounder instruments and data.  Files ending in             
.PDF are in Adobe PDF format.  Files ending in .DOC are in                    
Microsoft Word Document format.                                               
                                                                              
The following illustrates the directory structure, key files, and their       
purpose.                                                                      
                                                                              
[DOCUMENT]              This directory                                        
   |                                                                          
   |- DOCINFO.TXT                                                             
   |                    Describes directory contents (this file)              
   |                                                                          
   |- DOCUMENTS.LBL                                                           
   |                    Label files describing the documents                  
   |                                                                          
   |- GEO_INDEX_DESC.ASC                                                      
   |                    Describes the way geometry indexes are produced and   
   |                    and how they map to the data sets.                    
   |                                                                          
   |- AIS_FREQ_TABLE.TXT                                                      
   |                    Post-Commissioning MARSIS AIS Frequency Tables        
   |                    (30-06-05); values are in kHz                         
   |                                                                          
   |- AIS_SIGNAL_PROCESSING_REQ.PDF                                           
   |                    This document describes the signal processing         
   |                    requirements required to carry out ionospheric        
   |                    sounding with the MARSIS instrument and to provide    
   |                    an initial description of the in-flight modes of      
   |                    operation.                                            
   |                                                                          
   |- DENSITY_PROFILE_METHOD.PDF                                              
   |                    Conversion of Mar Express MARSIS Active sounder       
   |                    ionosphere traces to electron density profiles        
   |                                                                          
   |- DURU_MSTHESIS_JULY2006.PDF                                              
   |                    MAGNETICALLY CONTROLLED STRUCTURES IN THE IONOSPHERE  
   |                    OF MARS                                               
   |                                                                          
   |- MARSIS1-0.PDF                                                           
   |                    The Electron Plasma Frequency in the                  
   |                    Martian Ionosphere                                    
   |                                                                          
   |- MARSIS2-0.PDF                                                           
   |                    The Effect of the Ionosphere on Low-                  
   |                    Frequency Subsurface Radio Soundings                  
   |                    of Mars                                               
   |                                                                          
   |- MARSIS3-0.PDF                                                           
   |                    Ionospheric Electron Densities and                    
   |                    Temperature Measurements wit the                      
   |                    Mars Express MARSIS Instrument                        
   |                                                                          
   |- MARSIS_EAICD_AIS_L2.DOC                                                 
   |                    Experimenter to Planetary Science Archive             
   |                    Interface Control Document (EAICD)                    
   |                    For The MEX-MARSIS Active Ionosphric                  
   |                    Sounder (AIS) Level 2 Data                            
   |                                                                          
   |- MARSIS_EAICD_AIS_L2.PDF                                                 
   |                    Experimenter to Planetary Science Archive             
   |                    Interface Control Document (EAICD)                    
   |                    For The MEX-MARSIS Active Ionosphric                  
   |                    Sounder (AIS) Level 2 Data                            
   |                                                                          
   |- MARSIS_EAICD_AIS_L2.TXT                                                 
   |                    Experimenter to Planetary Science Archive             
   |                    Interface Control Document (EAICD)                    
   |                    For The MEX-MARSIS Active Ionosphric                  
   |                    Sounder (AIS) Level 2 Data