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GPS-derived orbits for the GOCE satellite

Bock, Heike ; Jäggi, Adrian ; Meyer, Ulrich ; Visser, Pieter ; van den IJssel, Jose ; van Helleputte, Tom ; Heinze, Markus ; Hugentobler, Urs

In: Journal of Geodesy, 2011, vol. 85, no. 11, p. 807-818

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    Titel
    • GPS-derived orbits for the GOCE satellite
    Autor
    • Bock, Heike. Astronomical Institute of the University of Bern, Sidlerstrasse 5, 3012, Bern, Switzerland
    • Jäggi, Adrian. Astronomical Institute of the University of Bern, Sidlerstrasse 5, 3012, Bern, Switzerland
    • Meyer, Ulrich. Astronomical Institute of the University of Bern, Sidlerstrasse 5, 3012, Bern, Switzerland
    • Visser, Pieter. Department of Earth Observation and Space Systems, Delft University of Technology, Kluyverweg 1, 2629 HS, Delft, The Netherlands
    • van den IJssel, Jose. Department of Earth Observation and Space Systems, Delft University of Technology, Kluyverweg 1, 2629 HS, Delft, The Netherlands
    • van Helleputte, Tom. Department of Earth Observation and Space Systems, Delft University of Technology, Kluyverweg 1, 2629 HS, Delft, The Netherlands
    • Heinze, Markus. Institut für Astronomische und Physikalische Geodäsie, Technische Universität München, Arcisstraße 21, 80333, Munich, Germany
    • Hugentobler, Urs. Institut für Astronomische und Physikalische Geodäsie, Technische Universität München, Arcisstraße 21, 80333, Munich, Germany
    Dokumententyp
    • Postprint
    Sprache
    • Englisch
    Veröffentlicht in
    • Journal of Geodesy, 2011, vol. 85, no. 11, p. 807-818. Springer-Verlag
    Andere elektronische Ausgabe
    OAI-PMH-ID
    • oai:doc.rero.ch:309674
    Summary
    The first ESA (European Space Agency) Earth explorer core mission GOCE (Gravity field and steady-state Ocean Circulation Explorer) was launched on 17 March 2009 into a sun-synchronous dusk-dawn orbit with an exceptionally low initial altitude of about 280km. The onboard 12-channel dual-frequency GPS (Global Positioning System) receiver delivers 1Hz data, which provides the basis for precise orbit determination (POD) for such a very low orbiting satellite. As part of the European GOCE Gravity Consortium the Astronomical Institute of the University of Bern and the Department of Earth Observation and Space Systems are responsible for the orbit determination of the GOCE satellite within the GOCE High-level Processing Facility. Both quick-look (rapid) and very precise orbit solutions are produced with typical latencies of 1day and 2 weeks, respectively. This article summarizes the special characteristics of the GOCE GPS data, presents POD results for about 2months of data, and shows that both latency and accuracy requirements are met. Satellite Laser Ranging validation shows that an accuracy of 4 and 7cm is achieved for the reduced-dynamic and kinematic Rapid Science Orbit solutions, respectively. The validation of the reduced-dynamic and kinematic Precise Science Orbit solutions is at a level of about 2cm