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Real Time Satellite Clocks in Precise Point Positioning

van Bree, Roel and Verhagen, Sandra and Hauschild, André (2010) Real Time Satellite Clocks in Precise Point Positioning. IAG 2009, Buenos Aires.

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Abstract

Computing a position with Single Frequency Precise Point Positioning (SF-PPP) algorithms compels to the use of satellite clock corrections, and for use with real-time applications, only a limited set of sources for orbit and clock data is available, for example the predicted Ultra Rapid products of the International GNSS Service (IGS). Recently, real-time clock estimates have become available, for example the RETICLE clocks developed by GSOC/DLR. In this research, first a comparison is made in the satellite clock error domain as the real-time RETICLE and predicted Ultra Rapid corrections are compared to the Final IGS clock corrections. The empirical standard deviation of clock differences between Final and RETICLE clocks become less than 0.4 nanosecond. Differences between Final and Ultra Rapid clocks lead to a standard deviation of around 2 nanoseconds. Secondly the single frequency precise point positioning position errors in the North, East and Up directions are investigated. With the use of the RETICLE clocks the empirical standard deviation of the position errors in the North and East directions are between 2 and 3 decimeter and in the Up direction around 5 decimeter. These results are comparable with the accuracies reached when using Final products.

Item URL in elib:https://elib.dlr.de/63477/
Document Type:Conference or Workshop Item (UNSPECIFIED)
Title:Real Time Satellite Clocks in Precise Point Positioning
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
van Bree, RoelMathematical Geodesy and Positioning (MGP), Delft University of TechnologyUNSPECIFIED
Verhagen, SandraMathematical Geodesy and Positioning (MGP), Delft University of TechnologyUNSPECIFIED
Hauschild, AndréDeutsches Zentrum für Luft-und Raumfart (DLR), German Space Operations Center (GSOC)UNSPECIFIED
Date:3 March 2010
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:GPS Real-time Clock Estimation
Event Title:IAG 2009
Event Location:Buenos Aires
Event Type:international Conference
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W - no assignment
DLR - Research area:Space
DLR - Program:W - no assignment
DLR - Research theme (Project):W - no assignment (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Space Operations and Astronaut Training > GSOC-German Space Operations Center
Deposited By: Hauschild, André
Deposited On:08 Mar 2010 10:20
Last Modified:08 Mar 2010 10:20

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