PDS_VERSION_ID                     = PDS3                                     
RECORD_TYPE                        = "STREAM"                                 
LABEL_REVISION_NOTE                = "2010-12-08 A.C.Raugh    Extracted from  
        the catalog.lbl file of the                                           
        PDS1 volume PHB_1001 and converted to PDS3                            
        standards for safing"                                                 
                                                                              
OBJECT                             = INSTRUMENT_HOST                          
  INSTRUMENT_HOST_ID               = "PHB2"                                   
  OBJECT                           = INSTRUMENT_HOST_INFORMATION              
    INSTRUMENT_HOST_NAME           = "PHOBOS 2"                               
    INSTRUMENT_HOST_TYPE           = "SPACECRAFT"                             
    INSTRUMENT_HOST_DESC           = "                                        
                                                                              
                                                                              
  Instrument Host Overview                                                    
  ========================                                                    
                                                                              
  Phobos was a next generation spacecraft after those of the Venera-          
  type, last used in the Vega mission (1984-86).  The total weight            
  of the spacecraft was 6,200 kg, of which 3,600 kg was the weight            
  of the propulsion system, which was to be separated from the                
  spacecraft after the most power-consuming maneuvers of the                  
  spacecraft were performed in setting up the reference orbit. In             
  accordance with the scientific aims of the mission, the                     
  instrumentation may be classified as planetary, plasma and solar.           
  The planetary data of the mission was to result from the                    
  exploration of Phobos, the martian surface and atmosphere.                  
  Instruments involved to this end (spectrometers, cameras,                   
  radiometers, and a neutron detector) were mounted within the                
  spacecraft so that their sensitive elements were oriented in an             
  anti-sunward direction (with the exception of the optical                   
  radiation spectrometer (ISO)).  The spacecraft was to change its            
  orientation to point the instruments towards Phobos or Mars while           
  in martian orbit.  One of the Phobos landers was capable of                 
  remaining at the surface for a long time and contained instruments          
  for celestial mechanics experiments, analysis of regolith and for           
  television imaging of landing places.  The other lander, called a           
  'hopper', could jump over the surface to study the composition of           
  the Phobos soil in several places.  The plasma part of the                  
  programme concentrated on the exploration of the magnetic field             
  and plasma environment of Mars, measurements of the parameters of           
  the interplanetary medium, the Sun and cosmic rays.                         
                                                                              
  Platform                                                                    
  ========                                                                    
                                                                              
  The Phobos spacecraft instruments were mounted directly to the              
  spacecraft structure; there was no scan platform."                          
                                                                              
  END_OBJECT                       = INSTRUMENT_HOST_INFORMATION              
                                                                              
  OBJECT                           = INSTRUMENT_HOST_REFERENCE_INFO           
    REFERENCE_KEY_ID               = "PSS1991-01-02"                          
  END_OBJECT                       = INSTRUMENT_HOST_REFERENCE_INFO           
                                                                              
  OBJECT                           = INSTRUMENT_HOST_REFERENCE_INFO           
    REFERENCE_KEY_ID               = "SAGDEEV&ZAKHARO1989"                    
  END_OBJECT                       = INSTRUMENT_HOST_REFERENCE_INFO           
                                                                              
END_OBJECT                         = INSTRUMENT_HOST                          
END