The PDS Ring-Moon Systems Node has a limited collection of Cassini CIRS observations available as separate, searchable data products. Due to the incomplete coverage, we removed CIRS from OPUS during our recent major upgrade. However, by popular demand, we are once again including CIRS in our search results. Please note that we only have CIRS data from June 1, 2004 through June 30, 2010. Complete coverage of CIRS will be available sometime in 2019.
See also how to interpret COCIRS preview images.