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Proceedings Paper

Systems Engineering For The Gravity Probe-8 Program
Author(s): Lou S. Young
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Paper Abstract

Current sensors and experiment systems take full advantage of the space environment to obtain extreme precision for scientific measurements. The systems therefore perform to design levels only in space, and can only be tested in the space environment. The sensors and support systems use specially developed technologies and also apply existing technologies in ways that push performance to the natural limits. These requirements place high emphasis on the task of the Systems Engineer to meet the challenges of integrating a broad range of technologies and verifying performance so that residual risk is tolerable at each stage of development and at launch. Gravity Probe-B (GP-B) is typical of this modern system challenge, as it represents the state of the art in sensors (gyroscopes and readout) and magnetic shielding, and incorporates state-of-the-art requirements for cryogenics, optics, satellite control, atmosphere-drag makeup, electronics, and supporting disciplines. Systems Engineering for GP-B will be called upon for innovative use of simulation and analytical techniques in conjunction with carefully selected development testing. For example, an existing error analysis is being used to develop the technology interactions and to support decisions (tradeoffs) on the configuration of the experiment system. This paper discusses the requirements that the GP-B system must meet, and describes our approach to integrating the technologies developed by Stanford University over the past 22 years with cryogenics and other disciplines developed for spaceflight by the aerospace community.

Paper Details

Date Published: 18 July 1986
PDF: 13 pages
Proc. SPIE 0619, Cryogenic Optical Systems and Instruments II, (18 July 1986); doi: 10.1117/12.966638
Show Author Affiliations
Lou S. Young, Lockheed Missiles & Space Company, Inc. (United States)

Published in SPIE Proceedings Vol. 0619:
Cryogenic Optical Systems and Instruments II
Ramsey K. Melugin, Editor(s)

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