the PDS (Planetary Data System) site, for Jupiter flyby datasets
the CDAWeb (Coordinated Data Analysis Web) site, for cruise dataset
Available coordinates :
RTN : R (radial component, Sun to the spacecraft), T (tangential component, parallel to the Solar Equatorial plane and perpendicular to R), and N (normal component, completes right handed set)
System III : R is along the Jupiter to spacecraft line, positive away from Jupiter. Phi is parallel to the Jovigraphic equator (Omega x R). Theta completes the right-handed set