The Planetary Data System's Rings Node is devoted to the archiving and
distributing of scientific data sets relevant to planetary ring syste
ms. The two major classes of ring data are images and occultation prof
iles, although a variety of additional data types (e.g. spectra, parti
cle absorption signatures, etc.) are also of interest. A large fractio
n of the data sets are from the Voyager missions to the outer planets,
but Earth-based and Hubble Space Telescope data sets are also represe
nted. Archiving work often includes reformatting the data into standar
dized formats and reconstructing some of the data processing steps. Th
e Rings Node also performs a variety of services to support research i
nto these data sets. These services include developing on-line catalog
s and information systems, filling orders for data, developing softwar
e tools, and coordinating special observing campaigns.