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Published December 16, 2002 | Published
Book Section - Chapter Open

Architecture for access to a compute-intensive image mosaic service in the NVO


The National Virtual Observatory (NVO) will provide on-demand access to data collections, data fusion services and compute intensive applications. The paper describes the development of a framework that will support two key aspects of these objectives: a compute engine that will deliver custom image mosaics, and a "request management system," based on an e-business applications server, for job processing, including monitoring, failover and status reporting. We will develop this request management system to support a diverse range of astronomical requests, including services scaled to operate on the emerging computational grid infrastructure. Data requests will be made through existing portals to demonstrate the system: the NASA/IPAC Extragalactic Database (NED), the On-Line Archive Science Information Services (OASIS) at the NASA/IPAC Infrared Science Archive (IRSA); the Virtual Sky service at Caltech's Center for Advanced Computing Research (CACR), and the yourSky mosaic server at the Jet Propulsion Laboratory (JPL).

Additional Information

© 2002 Society of Photo-Optical Instrumentation Engineers (SPIE). The request management system is based upon work supported by the National Science Foundation under Cooperative Agreement No. AST-0122449. Montage is supported by the NASA Earth Sciences Technology Office Computing Technologies program, under Cooperative Agreement Notice NCC 5-6261. We wish to thank Dr. Ewa Deelman, Dr. George Kremenek, and Dr. Joseph Mazzarella for constructive discussions.

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