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Test of the Gravitational Redshift with Galileo Satellites in an Eccentric Orbit

Herrmann, Sven and Finke, Felix and Lülf, Martin and Kichakova, Olga and Puetzfeld, Dirk and Knickmann, Daniela and List, Meike and Rievers, Benny and Giorgi, Gabriele and Günther, Christoph and Dittus, Hansjörg and Prieto-Cerdeira, Roberto and Dilssner, Florian and Gonzalez, Francisco and Schönemann, Erik and Ventura-Traveset, Javier and Lämmerzahl, Claus (2018) Test of the Gravitational Redshift with Galileo Satellites in an Eccentric Orbit. Physical Review Letters, 121 (231101). American Physical Society. DOI: 10.1103/PhysRevLett.121.231102 ISSN 0031-9007

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Official URL: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.121.231102

Abstract

On August 22, 2014, the satellites GSAT-0201 and GSAT-0202 of the European GNSS Galileo were unintentionally launched into eccentric orbits. Unexpectedly, this has become a fortunate scientific opportunity since the onboard hydrogen masers allow for a sensitive test of the redshift predicted by the theory of general relativity. In the present Letter, we describe an analysis of approximately three years of data from these satellites including three different clocks. For one of these, we determine the test parameter quantifying a potential violation of the combined effects of the gravitational redshift and the relativistic Doppler shift. The uncertainty of our result is reduced by more than a factor 4 as compared to the values of Gravity Probe A obtained in 1976.

Item URL in elib:https://elib.dlr.de/126879/
Document Type:Article
Title:Test of the Gravitational Redshift with Galileo Satellites in an Eccentric Orbit
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Herrmann, SvenZARM, University of Bremen, GermanyUNSPECIFIED
Finke, FelixZARM, University of Bremen, GermanyUNSPECIFIED
Lülf, MartinTechnische Universität MünchenUNSPECIFIED
Kichakova, OlgaZARM, University of Bremen, GermanyUNSPECIFIED
Puetzfeld, DirkUNSPECIFIEDUNSPECIFIED
Knickmann, DanielaUNSPECIFIEDUNSPECIFIED
List, MeikeUNSPECIFIEDUNSPECIFIED
Rievers, BennyZARM, Univ. BremenUNSPECIFIED
Giorgi, GabrieleGabriele.Giorgi (at) dlr.dehttps://orcid.org/0000-0003-0552-9790
Günther, Christophchristoph.guenther (at) dlr.deUNSPECIFIED
Dittus, HansjörgHansjoerg.Dittus (at) dlr.deUNSPECIFIED
Prieto-Cerdeira, RobertoESA ESTECUNSPECIFIED
Dilssner, FlorianESA ESOCUNSPECIFIED
Gonzalez, FranciscoESA ESTECUNSPECIFIED
Schönemann, ErikESA ESOCUNSPECIFIED
Ventura-Traveset, JavierESA ESTECUNSPECIFIED
Lämmerzahl, ClausZARM, University of Bremen, GermanyUNSPECIFIED
Date:4 December 2018
Journal or Publication Title:Physical Review Letters
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:121
DOI :10.1103/PhysRevLett.121.231102
Publisher:American Physical Society
ISSN:0031-9007
Status:Published
Keywords:General relativity, RELAGAL, GREAT, Galileo, eccentric, redshift, grgavitational
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication and Navigation
DLR - Research area:Raumfahrt
DLR - Program:R KN - Kommunikation und Navigation
DLR - Research theme (Project):R - Vorhaben GNSS2/Neue Dienste und Produkte
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Navigation
Deposited By: Giorgi, Dr. Gabriele
Deposited On:26 Mar 2019 09:55
Last Modified:31 Jul 2019 20:24

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