The Galileo Science Data System

Computer Science – Databases

Scientific paper

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Observation And Data Reduction Techniques, Computer Modeling And Simulation, Astronomical Catalogs, Atlases, Sky Surveys, Databases, Retrieval Systems, Archives, Etc., Jupiter, Interplanetary Physics

Scientific paper

The Galileo Science Data System (SDS) is designed to meet the data processing, data management, and data distribution requirements of the Galileo mission to Jupiter. The principal computing power of the Galileo SDS is provided by two VAX cluster systems, the Image Processing System (IPS) of the Multimission Image Processing Laboratory (MIPL), and the Science VAX Cluster (SVC). The SDS design provides support for a user base of approximately 300 scientists, centralized access to disk storage, interactive data visualization, high speed wide area network access, and support of both local and remote, standalone and clustered, computer systems with both Unix and VMS based operating systems. At the core of the SVC hybrid system is a dual host MicroVAX 4000. Peripheral to this central CPU system is a distributed network of VMS and Unix based workstations on a multi-protocol local area network (LAN). The local and remote computer systems are connected to the NASA Science Internet (NSI) via a group of programmable routers which filter access on the basis of TCP/IP and DECnet addresses. In this paper we discuss details of the configuration and operational plans for the SDS at Jupiter.

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