Abstract
In this study, three geomagnetic field models, T89, CHAOS-6 and IGRF-12 models are compared at LEO orbit altitudes with the satellite observations. Comparisons between the models and with the observations are made using the total magnetic field and the components during the geomagnetically disturbed and quiet times. Main interest is to see how the angle between the modelled and observed magnetic field vectors changes. The differences are important since satellite's attitude determination system strongly depends on the angle. Effects of geomagnetic activity on the angle is investigated using geomagnetic activity index and the position of the satellite which are inputs to the models. Comparisons are made between the models using root mean square error analysis. Differences between the model magnetic fields and those of observed are seen to increase when the geomagnetic activity occurs. We discuss the implications of these differences on the satellite attitude determination system.
Original language | English |
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Title of host publication | Proceedings of 8th International Conference on Recent Advances in Space Technologies, RAST 2017 |
Editors | M.F. Unal, A. Hacioglu, M.S. Yildiz, O. Altan, M. Yorukoglu |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 301-305 |
Number of pages | 5 |
ISBN (Electronic) | 9781538616031 |
DOIs | |
Publication status | Published - 4 Aug 2017 |
Event | 8th International Conference on Recent Advances in Space Technologies, RAST 2017 - Istanbul, Turkey Duration: 19 Jun 2017 → 22 Jun 2017 |
Publication series
Name | Proceedings of 8th International Conference on Recent Advances in Space Technologies, RAST 2017 |
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Conference
Conference | 8th International Conference on Recent Advances in Space Technologies, RAST 2017 |
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Country/Territory | Turkey |
City | Istanbul |
Period | 19/06/17 → 22/06/17 |
Bibliographical note
Publisher Copyright:© 2017 IEEE.
Keywords
- CHAOS
- Earth's magnetic field
- IGRF
- T89
- magnetospheric substorms
- satellite attitude determination