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Proceedings Paper

EDOS system life-cycle modeling
Author(s): Gerald Thrasher; Frederick McCaleb; Russell Nishino; David Rossmeisl; Phillip Message
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Paper Abstract

The complex nature of satellite communication and remote sensing computer system requires the NASA to predict the cost and performance of its computer systems during all system life cycle phases. The EOS data and operations systems (EDOS) simultaneously captures multiple science and telemetry data stream downlinked from EOS satellites in CCSDS format, and demultiplexes the raw data streams into time ordered, annotated CCSDS packet files which are distributed to the EOS data active archive centers, and to other agencies for further processing. The EDOS also provides real-time forward link services for command and telemetry data. This paper reports summary level results of EDOS modeling analyses and discusses the assumptions, algorithms, data sources and applications of the models from both Government and contractor perspectives. For example, the EDOS Acceptance Tests for Reliability, Maintainability, and Availability (RMS) requirements rely on the detailed results of the RMS models.

Paper Details

Date Published: 3 October 1998
PDF: 10 pages
Proc. SPIE 3439, Earth Observing Systems III, (3 October 1998); doi: 10.1117/12.325662
Show Author Affiliations
Gerald Thrasher, Computer Sciences Corp. (United States)
Frederick McCaleb, NASA Goddard Space Flight Ctr. (United States)
Russell Nishino, TRW, Inc. (United States)
David Rossmeisl, TRW, Inc. (United States)
Phillip Message, Stanford Telecom, Inc. (United States)

Published in SPIE Proceedings Vol. 3439:
Earth Observing Systems III
William L. Barnes, Editor(s)

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