Recent updates to OPUS (Instrument Names, Units, and Versions!)

• Several fields (e.g. Spacecraft Clock Count, Filter) have similar names across instruments, making it difficult to tell which instrument or mission a particular search field or metadata column refers to. We now include the instrument or mission name in the search field title as well as in the metadata columns in the same way that we show the name of the body for surface geometry.

• Many users have been requesting information on the measurement units supported by OPUS, and we are pleased to announce that these units are now shown. A future release will allow the user to select their own units.

• The PDS archive supports multiple versions for data (like any good archive, nothing is ever thrown away). These versions are now visible in OPUS on the Details page. For now, when downloading a zip file for selected images, only the current version is returned. In a future release we will allow you to select which version you wish to download. 

• Previously, Cassini ISS filter names lumped all polarizing filters of a particular type (e.g. IRP0, IRP90) into a single filter (IRPOL). We have now separated these out, making it easier to determine the polarization angle when looking at the metadata.
• We now ignore spaces, commas, and underscores in numeric fields, allowing input such as "100,000" or "100_000" to indicate thousands.
• Displayed numeric values (either the min/max hints on the search page or metadata values) are now rounded to an appropriate number of significant digits, with trailing zeros included to show the available precision.