The Ring-Moon Systems Node of NASA's Planetary Data System is devoted to archiving, cataloging, and distributing scientific data sets relevant to planetary rings and moons, and the ways they interact.

Planetary Data and Support

Search for data using OPUS (Outer Planets Unified Search)

  • Systems: Jupiter, Saturn, Uranus, Neptune, and Pluto.

  • Missions: Cassini, New Horizons, Voyager, Galileo, HST, and others.

  • Search Options: Surface geometry for moons, planets and rings, lighting geometry, resolution, and much more!


Browse our Data holdings using Viewmaster

  • See and preview every data set in our archive.
  • Drill down to individual products, complete with preview images, diagrams, indices, and documentation.
  • Links to download tar.gz archives of entire collections are never more than one click away.

Learn about how to use our data sets by following one of the “Missions and Data” links at left.


Expand Your Search if you are not finding what you need. Try the PDS-Wide Search Engine.


If you have a question, Ask Us.

Image Galleries

Explore the solar system by visiting our Image Galleries.

Help Us to Serve You Better
Cassini Ring Stellar Occultations

Updated May 3, 2019 The UVIS and VIMS occultation datasets are now version 2.

  • Combined with the RSS dataset updated in January 2019, we now have more than 1400 ring radial profiles spanning the entire Cassini mission.

  • See our Occultations page for more information and links to the data.

ROSES 2019 Proposal Support

Our Research Proposal Support pages provide information and links to data for ROSES 2019 programs relevant to the Planetary Ring-Moon Systems Node. They also provide links to support pages for ROSES calls for previous years.