OPUS Updates to Product Downloading

We have recently added two new features to make downloading of data products easier. First, a reminder about how to use our download system:

1. After refining your search criteria, browse the thumbnail gallery by clicking on the "Browse Results" tab.
2. When you find an observation you want to save, click on the checkmark in the little toolbar at the bottom of the thumbnail.
3. Once you've selected all of the observations you care about, click on the "Selections" tab.
4. You will see the total size of the data products that will go into the zip file you can download. You will also see a list of product types that you can select or deselect to control what goes in your zip file.
5. There are now three options for how to download data:
1. Download CSV of Chosen Columns - This will create a single CSV file that has one row for each observation and one column for each metadata field you have selected using "Choose Columns". No actual data will be downloaded, only a list of metadata.
2. Download Zipped Data Archive - This will create a ZIP file that you can download separately. The ZIP file contains all of the data products for the observations you chose. It also includes a file containing product checksums, a manifest, and the same CSV file discussed above. Finally, it includes a new file, urls.txt, discussed below.
3. Download Zipped URL Archive - This will create a ZIP file that is the same as the one above, but with no actual data products. It will only include the checksums, manifest, CSV, and URLs files.

The new urls.txt file solves the problem of downloading huge amounts of data when it is impractical to put all the data into a single ZIP file. urls.txt simply contains a list of URLs for all data products for all observations you selected, using the PDS Ring-Moon Systems Node ViewMaster site as the source for the data. You can easily use this file to automatically retrieve the actual data using the wget command as follows:

wget -i urls.txt

We have also made it easier to download ZIP archives for a single observation directly from the Details tab:

As always, you can continue to download individual data products from this tab as well.

We value your feedback, questions, comments, and suggestions. Please let us know what you think!