RADAR: A Fast, Scalable, and Distributable Archive Inventory Service

The NASA/IPAC Infrared Science Archive (IRSA) has recently deployed the Recursive Archive Digest and Reference (RADAR) service, which returns an inventory of IRSA's holdings in response to a spatial query, and offers one-click download of data and links to IRSA's data access services. RADAR also supports inventories and data access from remote archives; the current implementation supports access to the Multi-mission Archive at STScI (MAST) Spectral and Image Scrapbook and NEDBasic Data. When complete, RADAR will maintain the results of multiple queries in "data collections" and will provide tools that will allow users to augment collections, remove data from them, modify search criteria, resubmit jobs, and check job status. RADAR is supported by an evolution of IRSA's component based architecture. It utilizes a fast estimation service and runs under the Request Management Environment (ROME) funded by NVO.