Galileo Trajectory Pre-Jupiter Bundle                                     
    Galileo Trajectory Pre-Jupiter Venus Data Description                     
                                                                              
    PDS3 DATA_SET_ID               = GO-V-POS-6-VENUS-TRAJECTORY-V1.0         
    PDS3 DATA_SET_NAME             =                                          
    GALILEO ORBITER V POS VENUS TRAJECTORY V1.0                               
    START_TIME                     = 1990-02-09T00:00:00.000                  
    STOP_TIME                      = 1990-02-11T00:00:00.000                  
    PDS3 DATA_SET_RELEASE_DATE     = 1994-01-01                               
    PRODUCER_FULL_NAME             = STEVEN P. JOY                            
                                                                              
    References:                                                               
    GALILEO ORBITER V POS VENUS TRAJECTORY V1.0, Joy, Steven P.; Mafi, J. N.  
    GO-V-POS-6-VENUS-TRAJECTORY-V1.0, NASA Planetary Data System, 1994        
                                                                              
    These data were originally archived in the following PDS3 data set:       
    GO-V-POS-6-VENUS-TRAJECTORY-V1.0 (https://doi.org/10.17189/1519701).      
                                                                              
  Collection Overview                                                         
  =================                                                           
    This collection contains the Galileo spacecraft trajectory during the     
    Venus flyby. The data have been derived from SPICE kernels at a 1         
    minute sample rate. The data are provided in Venus Solar Orbital          
    (VSO) coordinates and are given in units of Venus radii where 1 Rv =      
    6052 km. These data cover the interval 1990-02-09 00:00 to                
    1990-02-11 00:00.                                                         
                                                                              
                                                                              
    Data                                                                      
    ====                                                                      
                                                                              
    ------------------------------------------------------------------        
    Table 1. Data record structure                                            
    ------------------------------------------------------------------        
    Column   Description                                                      
    ------------------------------------------------------------------        
    year     Year = 1990                                                      
    day      Day of year (40 or 41)                                           
    sec      Second of day                                                    
    X        S/C position X component in VSO coordinates <Rv>                 
    Y        S/C position Y component in VSO coordinates <Rv>                 
    Z        S/C position Z component in VSO coordinates <Rv>                 
                                                                              
                                                                              
  Coordinate Systems                                                          
  ==================                                                          
    The Galileo trajectory data are being archived in the Venus Solar         
    Orbital (VSO) coordinate system. The VSO coordinate system is             
    basically the Geocentric Solar Ecliptic (GSE) coordinate system           
    defined appropriately for Venus.  The VSO X direction is taken along      
    the Venus - Sun line, positive towards the Sun. The VSO Z direction       
    is parallel to the normal to the Venus orbital plane about the Sun,       
    positive northward, and Y completes the right-handed set (towards         
    dusk).                                                                    
                                                                              
                                                                              
    Data Processing                                                           
    ===============                                                           
    The trajectory has been derived from a Galileo SPK kernel.                
    This kernel was obtained by the PDS-PPI node from the PDS-NAIF            
    node. The code which produced the trajectory data was developed and       
    executed at PDS-PPI. This code utilized SPICE routines which were         
    developed at and distributed by PDS-NAIF. Both SPICE kernels and          
    code may be available through PDS-NAIF.                                   
                                                                              
                                                                              
  Confidence Level Overview                                                   
  =========================                                                   
    The data have been derived from the Galileo SPICE kernels using well      
    tested software from the SPICELIB and GLLSPICE subroutine libraries.      
    Each data point is computed using S/C and planetary ephemerides           
    computed at the time of the dataset sample (not interpolated).