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TerraSAR-X Precise Trajectory Estimation and Quality Assessment

Yoon, Yoke and Eineder, Michael and Yague-Martinez, Nestor and Montenbruck, Oliver (2009) TerraSAR-X Precise Trajectory Estimation and Quality Assessment. IEEE Transactions on Geoscience and Remote Sensing, 47 (6), pp. 1859-1868. DOI: 10.1109/TGRS.2008.2006983.

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Since the launch of TerraSAR-X on June 15, 2007, the required precise orbit products have been provided by the German Space Operations Center (DLR/GSOC) to support operational space-borne Synthetic Aperture Radar (SAR) and interferometric SAR (InSAR) image processing. The TerraSARX precise trajectory is reconstructed solely based on the Global Positioning Systems (GPS) measurements from a geodetic grade dual-frequency Integrated Geodetic and Occultation Receiver (IGOR) onboard the spacecraft. The GPS-based precise orbit determination (POD) strategy used in the estimation of the precise TerraSAR-X orbit and its performance will be fully described in this paper. A 5-month statistics from the internal and external orbit assessment indicate a root-mean-squared (RMS) 3D orbit accuracy of better than 10 cm and 20 cm for the precise science orbit (PSO) and precise rapid orbit (PRO) products respectively. The POD performance of the backup single frequency MosaicGNSS receiver to support operational PRO product generation in case of IGOR tracking failure or interruptions is described as well.

Document Type:Article
Title:TerraSAR-X Precise Trajectory Estimation and Quality Assessment
AuthorsInstitution or Email of Authors
Eineder, MichaelUNSPECIFIED
Yague-Martinez, NestorUNSPECIFIED
Montenbruck, OliverUNSPECIFIED
Date:23 January 2009
Journal or Publication Title:IEEE Transactions on Geoscience and Remote Sensing
Refereed publication:Yes
In Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 1859-1868
Keywords:Interferometry, Global Positioning Systems, Precise Orbit Determination, Remote Sensing
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W - no assignement
DLR - Research area:Space
DLR - Program:W - no assignement
DLR - Research theme (Project):W -- no assignement (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute
Remote Sensing Technology Institute > SAR Signal Processing
Space Operations and Astronaut Training
Deposited By: Dr.rer.nat.hab. Oliver Montenbruck
Deposited On:02 Oct 2008
Last Modified:07 Feb 2013 20:21

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