EDOS system life-cycle modeling

Gerald Thrasher; Frederick McCaleb; Russell Nishino; David Rossmeisl; Phillip Message

doi:10.1117/12.325662

3 October 1998 EDOS system life-cycle modeling

Gerald Thrasher, Frederick McCaleb, Russell Nishino, David Rossmeisl, Phillip Message

Proceedings Volume 3439, Earth Observing Systems III; (1998) https://doi.org/10.1117/12.325662
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

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.

Citation Download Citation

Gerald Thrasher, Frederick McCaleb, Russell Nishino, David Rossmeisl, and Phillip Message "EDOS system life-cycle modeling", Proc. SPIE 3439, Earth Observing Systems III, (3 October 1998); https://doi.org/10.1117/12.325662

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