The Product Operations Status Summary Metrics (POSSUM) computer program provides a readable view into the state of the Phoenix Operations Product Generation Subsystem (OPGS) data pipeline. POSSUM provides a user interface that can search the data store, collect product metadata, and display the results in an easily-readable layout. It was designed with flexibility in mind for support in future missions. Flexibility over various data store hierarchies is provided through the disk-searching facilities of Marsviewer. This is a proven program that has been in operational use since the first day of the Phoenix mission.

POSSUM presents a graphical representation for tracking and accountability of the existence and version of expected Reduced Data Records (RDRs) for a given Experiment Data Record (EDR) for the Phoenix lander mission. By using POSSUM, operations personnel can easily determine if any RDRs are missing for a given EDR during and after OPGS processing pipeline. A variety of sort options exists, including product file creation time and instrument.

This work was done by Atsuya Takagi and Nicholas Toole of Caltech for NASA’s Jet Propulsion Laboratory.

The software used in this innovation is available for commercial licensing. Please contact Daniel Broderick of the California Institute of Technology at This email address is being protected from spambots. You need JavaScript enabled to view it.. Refer to NPO-46664.

NASA Tech Briefs Magazine

This article first appeared in the December, 2010 issue of NASA Tech Briefs Magazine.

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