Radio Science
A technique that uses the spacecraft's own radio signal as an instrument — tracking tiny frequency shifts to weigh a planet, map its gravity field, and probe its atmosphere and rings by how they bend the signal.
Instruments of this class
- Cassini Radio Science Subsystem (RSS)Instrument
Cassini's radio-science experiment, which used the spacecraft's radio link — tracking tiny frequency shifts and radio occultations — to weigh Saturn, map its gravity field, and probe the structure of its rings and atmosphere.
Knowledge connections
- Group includesCassini Radio Science Subsystem (RSS)
Sources
The primary and reference sources this topic draws on.
- NASANational Aeronautics and Space Administration
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.
- NASA JPLJet Propulsion Laboratory / Solar System Dynamics
Orbital data, ephemerides, and small-body parameters for planets, asteroids, and comets.