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Estimation of satellite antenna phase center offsets for Galileo

Steigenberger, Peter and Fritsche, Mathias and Dach, Rolf and Schmid, Ralf and Montenbruck, Oliver and Uhlemann, Mike and Prange, Lars (2016) Estimation of satellite antenna phase center offsets for Galileo. Journal of Geodesy, 90 (8), pp. 773-785. Springer. DOI: 10.1007/s00190-016-0909-6 ISSN 0949-7714

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Official URL: http://dx.doi.org/10.1007/s00190-016-0909-6

Abstract

Satellite antenna phase center offsets for the Galileo In-Orbit Validation (IOV) and Full Operational Capability (FOC) satellites are estimated by two different analysis centers based on tracking data of a global GNSS network. The mean x- and y-offsets could be determined with a precision of a few centimeters. However, daily estimates of the x-offsets of the IOV satellites show pronounced systematic effects with a peak-to-peak amplitude of up to 70 cm that depend on the orbit model and the elevation of the Sun above the orbital plane. For the IOV y-offsets, no dependence on the orbit model exists but the scatter strongly depends on the elevation of the Sun above the orbital plane. In general, these systematic effects are significantly smaller for the FOC satellites. The z-offsets of the two analysis centers agree within the 10--15 cm level, and the time series do not show systematic effects. The application of an averaged Galileo satellite antenna model obtained from the two solutions results in a reduction of orbit day boundary discontinuities by up to one third---even if an independent software package is used.

Item URL in elib:https://elib.dlr.de/104275/
Document Type:Article
Title:Estimation of satellite antenna phase center offsets for Galileo
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Steigenberger, PeterDLR/GSOChttps://orcid.org/0000-0003-1905-6699
Fritsche, MathiasGFZUNSPECIFIED
Dach, RolfAIUBUNSPECIFIED
Schmid, RalfTUM/DGFIUNSPECIFIED
Montenbruck, OliverDLR/GSOCUNSPECIFIED
Uhlemann, MikeGFZUNSPECIFIED
Prange, LarsAIUBUNSPECIFIED
Date:11 May 2016
Journal or Publication Title:Journal of Geodesy
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:90
DOI :10.1007/s00190-016-0909-6
Page Range:pp. 773-785
Publisher:Springer
ISSN:0949-7714
Status:Published
Keywords:GNSS; Galileo; Antenna model; Satellite antenna phase center; Orbit modeling
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):R - Vorhaben Infrastruktur und Unterstützung für Raumflugbetrieb
Location: Oberpfaffenhofen
Institutes and Institutions:Space Operations and Astronaut Training
Deposited By: Steigenberger, Peter
Deposited On:17 May 2016 10:12
Last Modified:20 Dec 2016 15:17

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