This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Thermal Verification and Testing of Earth Observation and Navigation Platforms: Thales Alenia Space Italia Experience
Technical Paper
2009-01-2430
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The market pressure towards compression of costs and schedule time affects all the programs activities. For the campaigns of thermal verification in particular, this trend results in the recurring request for shorter and inexpensive test verification campaigns.
This paper presents the Thales Alenia Space-Italia experience in the field of the thermal balance tests, by comparing the test philosophies and approaches followed on various Navigation and Earth Observation satellites, for which TAS-I was fully responsible of the thermal control and of the relevant verification.
The objectives of the comparison are to highlight the critical choices and the relevant lessons learnt in the test definition process, and to promote the standardization and optimization of the thermal verification campaigns, with particular regard to:
-
Evaluation of the uncertainty confidence level and of its evolution along the program cycle.
-
Choice of the number of test phases and of the phases parameters, as a function of the thermal mathematical model verification.
-
Definition of the stabilization criteria for the steady-state phases.
-
Test-oriented modeling.
The comparison involves the programs Express/MD-3 PLM, Radarsat-2, COSMO-SkyMed, Galileo, Kompsat-5 PLM.
The correlation level achieved for each program is presented.
The lessons learnt from the appraisal of both the correlation status and of the criticalities emerged in the analyzed thermal balance tests are presented together with the corresponding recommended approaches.
Authors
Topic
Citation
Sacchi, E., Ferrero, A., Munì, M., and Massa, E., "Thermal Verification and Testing of Earth Observation and Navigation Platforms: Thales Alenia Space Italia Experience," SAE Technical Paper 2009-01-2430, 2009, https://doi.org/10.4271/2009-01-2430.Also In
References
- European Cooperation for Space Standardization Space Engineering Thermal Control General Requirements 15 November 2008
- Sacchi E., Perotto V., Poidomani G., Evolution of Thermal Analysis and Temperature Correlation Techniques in the experience of Italian Telecom and Scientific satellite programs IAF-98-I.6.04, 49 th IAF Sept. 28 1998 Melbourne, Australia
- Sacchi E., Thermal Design Verification, Test Correlation and Flight Prediction of Satellites; an Overview of Alenia Spazio Experience 1st International Workshop on Test Philosophies, Standards, Methods and Quality for Space Systems Turin March 2003
- Messidoro P. et al., Design Authority In The Test Programme Definition: The Alenia Spazio Experience, 5 th ETS 2004
- Sacchi E., Thermal Test for Spacecrafts: selection criteria 2 nd International Workshop on Verification and Testing of Space Systems Turin March 2006