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Post-Launch Application of EP MAPS Thermal Models for Improved On-Orbit Performance
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Abstract
The importance of developing test correlated analytical models, of critical or unique spacecraft hardware, is not limited to pre-flight design verification. Such thermal models can also be extremely useful tools in assessing on-orbit operational and temperature anomalies. This paper discusses the application of test correlated thermal models, developed for a complex electro-mechanical system, in support of on-orbit operational replanning in response to unexpected mechanism movement and electronics temperature levels. The modeling effort utilized a recently developed routine for chaining coordinate systems in TRASYS (Thermal Radiation Analysis System). Results from the modeling provided detailed data, which complemented the limited telemetry and supported the operational replanning to ensure acceptable performance would be maintained throughout the mission.
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Citation
Wasson, D., Ducas, W., and Ousley, W., "Post-Launch Application of EP MAPS Thermal Models for Improved On-Orbit Performance," SAE Technical Paper 941436, 1994, https://doi.org/10.4271/941436.Also In
References
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- Penafiel, C. Wasson, D. Ducas W. Ousley, W. “On-Orbit Thermal Performance Testing of the Explorer Platform” 24th ICES Conference, SAE Paper no. 941548 Friedrichshafen, Germany June 20-23 1994
- Thermal Radiation Analysis System (TRASYS II) NASA Lyndon B. Johnson Spacecraft Center under Contract NAS 9-15832 October 1986
- Systems Improved Numerical Differencing Analyzer (SINDA)
- Harvatine, F. J. “Advanced Capability for Modeling Multi-Link Mechanisms with TRASYS” 23rd ICES Conference, SAE Paper No. 932138 Colorado Springs, CO July 12-15 1993
- Satellite Thermal Control Handbook Gilmore, David G. The Aerospace Corporation Press 1994