/* MODIFICATIONS:
/*	920929  RMONARREZ
/*		Generated from database

/* Template: Mission Template                                   Rev: 19890121 */
/* Note:       The following templates form part of a standard set            */
/*             for the submission of a mission to the PDS.                    */
/* Hierarchy:   MISSION                                                       */
/*                 MSNINFO                                                    */
/*                    MSNPHSINFO                                              */
/*                 MSNREFINFO                                                 */
/*                    REFERENCE                                               */
/*                       REFAUTHORS                                           */

OBJECT                       = MISSION                           
  MISSION_NAME                 = "VOYAGER"             

  OBJECT                       = MSNINFO                            
    MISSION_START_DATE           = 1972-07-01               
    MISSION_STOP_DATE            = UNK               
    MISSION_ALIAS_NAME           = "MJS77"               
    MISSION_DESC                 = "
The Voyager mission was the product of a redesign of the     
Outer Planets grand tour conceived in the late 1960s.        
Direct measurement instruments on Voyager measured cosmic    
ray particles, low energy charged particles, magnetic        
fields, plasma particles and plasma waves. The remote        
sensing investigations were essentially astronomical in      
nature, measuring the lighter radio waves reflected or       
emitted by the planets and their satellites. A final         
Voyager investigation used the radio telemetry link between  
the spacecraft and controllers on Earth to probe the         
atmospheres of the planets and satellites and to determine   
the masses of planets and satellites as the spacecraft       
passed near them. The Voyager mission used two identical     
spacecraft. Each Voyager spacecraft followed a               
billion-kilometer path to Jupiter, where the gravitational   
pull of the giant planet was used to redirect the            
trajectory toward Saturn. Voyager 1 received a larger kick   
from the gravitational slingshot than Voyager 2, increasing  
its lead so that it arrived at Saturn in November 1980,      
about nine months before Voyager 2. During the Saturn        
flyby, Voyager 1s trajectory was deflected northward of the  
ecliptic plane, in which the solar system planets orbit.     
Voyager 2 used the Saturn flyby to redirect its path toward a
Uranus encounter in 1986. (Refer to Morrison, 1982)" 
               
    MISSION_OBJECTIVES_SUMMARY   = "
Voyager's objective was the exploration of the two giant     
planets, Jupiter and Saturn, and their magnetospheres and    
satellites. Major emphasis was placed on studying the        
satellites, many of which are planet-sized worlds, in as     
much detail as possible. The study of Titan, the only        
satellite in the solar system known to have an extensive     
atmosphere, was nearly as high a priority as studies of      
Saturn itself.(Refer to Morrison, 1982)"

    OBJECT                       = MSNPHSINFO                       
      SPACECRAFT_ID                = VG2               
      TARGET_NAME                  = NEPTUNE        
      MISSION_PHASE_TYPE           = ENCOUNTER
      SPACECRAFT_OPERATIONS_TYPE   = FLYBY               
      MISSION_PHASE_START_TIME     = 1989-06-05               
      MISSION_PHASE_STOP_TIME      = 1989-10-02               
      MISSION_PHASE_DESC           = "
This mission phase covers all Neptune encounter science      
activities and includes both the observatory and close       
encounter periods."

    END_OBJECT                   = MSNPHSINFO                     

    OBJECT                         = MSNPHSINFO                         
      SPACECRAFT_ID                  = VG2               
      TARGET_NAME                    = URANUS
      MISSION_PHASE_TYPE             = ENCOUNTER
      SPACECRAFT_OPERATIONS_TYPE     = FLYBY               
      MISSION_PHASE_START_TIME       = 1985-11-04               
      MISSION_PHASE_STOP_TIME        = 1986-02-25               
      MISSION_PHASE_DESC             = "
This mission phase covers all Uranus encounter science       
activities and includes both the observatory and close       
encounter periods."

    END_OBJECT                     = MSNPHSINFO                     
  END_OBJECT                     = MSNINFO                        

  OBJECT                         = MSNREFINFO                         
    REFERENCE_KEY_ID               = "MORRISON1982"               

    OBJECT                         = REFERENCE                          
      DOCUMENT_TOPIC_TYPE            = "MISSION DESCRIPTION" 
      JOURNAL_NAME                   = "NASA PUBLICATION"
      PUBLICATION_DATE               = 1982
      REFERENCE_DESC                 = "
Morrison, D., Voyages to Saturn, NASA SP-451, Washington, 1982."  

      OBJECT                         = REFAUTHORS                         
        AUTHOR_FULL_NAME               = "DAVID MORRISON"            
      END_OBJECT                     = REFAUTHORS                     
    END_OBJECT                     = REFERENCE                      
  END_OBJECT                     = MSNREFINFO                     
END_OBJECT                     = MISSION