Testing general relativity using Galileo satellite signals

The two Galileo satellites launched in 2014 (E14 and E18) were injected in orbits with a significant eccentricity. Both the gravitational potential at the location of the satellites and their velocity thus change as a function of time. Since the Galileo satellites carry very stable clocks, these can...

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Published in2016 24th European Signal Processing Conference (EUSIPCO) pp. 1058 - 1062
Main Authors Giorgi, Gabriele, Lulf, Martin, Gunther, Christoph, Herrmann, Sven, Kunst, Daniela, Finke, Felix, Lammerzahl, Claus
Format Conference Proceeding
LanguageEnglish
Published EURASIP 01.08.2016
Subjects
Clocks
Delays
Earth
Extraterrestrial measurements
Orbits
Phase measurement
Satellites
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Summary:The two Galileo satellites launched in 2014 (E14 and E18) were injected in orbits with a significant eccentricity. Both the gravitational potential at the location of the satellites and their velocity thus change as a function of time. Since the Galileo satellites carry very stable clocks, these can potentially be used to set new bounds to the level of agreement between measurements of the clocks' frequency shifts and their prediction by the theory of relativity. This paper presents some initial results obtained by processing available data from Galileo satellite E18.
ISSN:2076-1465
DOI:10.1109/EUSIPCO.2016.7760410