Article (Scientific journals)
On the accuracy of the SGP4 to predict stellar occultation events using ENVISAT/GOMOS data and recommendations for the ALTIUS mission
Thoemel, Jan; Mateshvili, Nina; Demoulin, Philippe et al.
2019In CEAS Space Journal, 11 (2), p. 147--159
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Keywords :
ALTIUS; Accuracy; Astrodynamics; ENVISAT; GOMOS; SGP4
Abstract :
[en] In preparation for the operations of the ALTIUS mission, research is carried out to assess the accuracy of the SGP4 orbital propagator in predicting stellar occultation events. The quantification of the accuracy and its consequent improvement will enable reliable measurement planning and, therefore, maximize the number of measurements. To this end, predictions are made for the timing of occultations for the GOMOS instrument on-board the ENVISAT, which are then compared to actual occultation occurrences. It is found that the error is substantial but follows a trend that can be interpolated. This enables devising a method for highly accurate predictions given a sufficient number of data points. Statistically significant results for the accuracy of the propagator and a calibration method are presented. Recommendations for a measurement planning procedure of ALTIUS are formulated.
Disciplines :
Aerospace & aeronautics engineering
Author, co-author :
Thoemel, Jan  ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > Remote Sensing
Mateshvili, Nina
Demoulin, Philippe
Vanhellemont, Filip
Pieroux, Didier
Bingen, Christine
Dekemper, Emmanuel
Franssens, Ghislain
Robert, Charles
Fussen, Didier
External co-authors :
yes
Language :
English
Title :
On the accuracy of the SGP4 to predict stellar occultation events using ENVISAT/GOMOS data and recommendations for the ALTIUS mission
Publication date :
2019
Journal title :
CEAS Space Journal
ISSN :
1868-2510
Publisher :
Springer, Germany
Volume :
11
Issue :
2
Pages :
147--159
Peer reviewed :
Peer Reviewed verified by ORBi
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since 08 November 2022

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