<div class="csl-bib-body">
<div class="csl-entry">Wolf, H., Böhm, J., Hugentobler, U., & Duan, B. (2026, August 5). <i>Evaluating the use of VLBI for satellite orbit determination with simulated observations</i> [Conference Presentation]. 46th COSPAR Scientific Assembly 2026, Florence, Italy. http://hdl.handle.net/20.500.12708/232052</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/232052
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dc.description.abstract
In the near future, VLBI observations are expected to expand, opening up a range of promising scientific opportunities. Satellite missions equipped with VLBI (Very Long Baseline Interferometry) transmitters, such as Genesis, will enable direct VLBI tracking of satellites. This represents a major advancement, offering new possibilities for satellite orbit modelling based on VLBI data and the potential to improve both the accuracy and consistency of orbit determination across space-geodetic techniques.
In this study, the capability of VLBI to estimate the six Keplerian orbital elements together with nine solar radiation pressure (SRP)–related dynamical parameters is investigated using simulated VLBI observations of Galileo satellites. Partial derivatives of the satellite position with respect to orbital and dynamical parameters are computed using the ORBGEN module of the Bernese GNSS Software and subsequently employed in VieVS-VLBI to determine the partial derivatives of the group delays with respect to the same parameters. The SRP accelerations are resolved into three orthogonal components: the satellite–Sun direction, the solar panel axis, and the third direction completing a right-handed coordinate system. For each component, both constant and periodic empirical parameters are estimated. The results offer valuable insight into the sensitivity of VLBI measurements to orbital and SRP parameters and highlight the potential of VLBI as a technique for precise satellite orbit determination.
en
dc.description.sponsorship
FWF - Österr. Wissenschaftsfonds
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dc.language.iso
en
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dc.subject
Genesis
en
dc.subject
VieVS
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dc.subject
Bernese GNSS Software
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dc.subject
Solar Radiation Pressure Parameter
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dc.subject
Orbital Elements
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dc.title
Evaluating the use of VLBI for satellite orbit determination with simulated observations
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.contributor.affiliation
Technical University of Munich, Germany
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dc.contributor.affiliation
Technical University of Munich, Germany
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dc.relation.grantno
PAT7916524
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dc.type.category
Conference Presentation
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tuw.project.title
VLBI Beobachtungen zu Genesis für verbesserte Referenzrahmen
