PDS3_DATA_SET_ID               = VG1-SS-PLS-4-SUMM-1HR-AVG-V1.0                
DATA_SET_NAME                  = VOYAGER 1 SOLAR WIND PLS 1 HOUR AVERAGES V1.0 
START_TIME                     = 1977-09-07T09:00:00.000                       
STOP_TIME                      = 1980-12-31T17:00:00.000                       
ORIGINAL_DATA_SET_RELEASE_DATE = 1996-11-12                                    
PRODUCER_FULL_NAME             = JOHN D. RICHARDSON                            
                                                                               
REFERENCE:                                                                     
                                                                               
Bridge, H.S., J.W. Belcher, A.J. Lazarus, J.D. Sullivan, R.L. McNutt,          
F. Bagenal, J.D. Scudder, E.C. Sittler, G.L. Siscoe, V.M. Vasyliunas, C.K.     
Goertz, and C.M. Yeates, Plasma Observations Near Jupiter: Initial Results     
from Voyager 1, Science, Vol. 204, p. 987, 1979.                               
                                                                               
    DATA_SET_DESCRIPTION                                                       
                                                                               
      Voyager 1 plasma data of the solar wind, 1 hour averages.                
The files in this directory contain the Voyager hourly average plasma data.    
The plasma parameters are obtained by finding the best fit of a convected      
isotropic Maxwellian distribution to the data. One sigma errors                
are typically less than 0.5% in the speed and VR, less than 5% for the         
density and thermal speed, and vary greatly for VT and VN.                     
Sampling times range from 12 to 192 sec., with sampling generally more         
frequent early in the mission. The columns are:                                
                                                                               
1) Year                                                                        
2) day of year (day 1 is Jan. 1)                                               
3) hour                                                                        
4) proton speed in km/s, magnitude of the velocity vector                      
5) proton density in cm-3                                                      
6) proton thermal speed in km/s (proton temperature in eV = .0052 times the    
                                 square of the thermal speed)                  
7) Radial Velocity (along the spacecraft/Sun direction) in km/s                
8) Tangential Velocity (parallel to the solar equatorial plane and             
   perpendicular to the radial direction) in km/s                              
9) Normal Velocity (perpendicular to the VR and VT directions) in km/s         
                                                                               
The velocity components are given in the RTN coordinate system,                
where R is radially outward, T is in a plane parallel to the solar             
equatorial plane and positive in the direction of solar rotation,              
and N completes a right-handed system.                                         
                                                                               
If possible, please consult with us, or at least send preprints, when you use  
this data to prevent grievous errors or misconceptions.                        
(John Richardson, jdr@space.mit.edu)