About PDS

Overview

The Planetary Data System (PDS) is an archive of data products from NASA planetary missions, which is sponsored by the NASA Office of Space Science. We actively manage the archive to maximize its usefulness, and it has become a basic resource for scientists around the world.

All PDS-produced products are peer-reviewed, well-documented, and easily accessible via a system of online catalogs that are organized by planetary disciplines.

PDS technology has lowered both the cost and risk for large archives through the use of CD media and tools. We use standards for describing and storing data that are designed to enable future scientists who are unfamiliar with the original experiments to analyze the data, using a variety of computer platforms, with no additional support. These standards ( PDS Standards Reference and Planetary Science Data Dictionary) address the data structure, description contents, media design, and a set of terms.

Though PDS does not fund the production of archive data from active missions, we work closely with project teams to help them design well-engineered products that can be released quickly.

While most of our products can be ordered automatically, PDS provides teams of scientists to help users select and understand the data. We also offer special processing for products tailored to the needs of individual users.


Structure

PDS Project Management is assigned to the Solar System Exploration Data Services Office at the Goddard Space Flight Center.

PDS is comprised of a federation of eight teams--called nodes--geographically distributed around the U.S. Five are science discipline nodes, focusing on Atmospheres, Geosciences, Planetary Plasma Interactions, Rings and Small Bodies. Three nodes are considered support nodes; these are the engineering node, the imaging node and the navigation and ancillary data node. Additionally, there is special support for the Geosciences and Atmospheres nodes provided by a Radio Science specialist.

Several of the nodes have "sub-nodes" to help with a specific aspect of the node's discipline. Several of the nodes oversee one or more data nodes, established for a short period of time to deliver a specific data collection to the PDS.

Each node is led by an expert in the subject discipline, and each has an advisory group made up of other practitioners of that discipline. Node selections are made every five years under a NASA Research Announcement.

One of the science node leaders is also assigned as the PDS project scientist; this position rotates every few years.

For more information about each node see About the Nodes.