The effect of the motion of the Sun on the light-time in interplanetary relativistic experiments

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dc.creatorBertotti, B.
dc.creatorAshby, N.
dc.creatorIess, L.
dc.date2007-09-11
dc.date2008-01-12
dc.date.accessioned2026-07-07T12:35:48Z
dc.date.available2026-07-07T12:35:48Z
dc.descriptionIn 2002 a measurement of the effect of solar gravity upon the phase of coherent microwave beams passing near the Sun has been carried out with the Cassini mission, allowing a very accurate measurement of the PPN parameter $γ$. The data have been analyzed with NASA's Orbit Determination Program (ODP) in the Barycentric Celestial Reference System, in which the Sun moves around the centre of mass of the solar system with a velocity $v_\odot$ of about 10 m/sec; the question arises, what correction this implies for the predicted phase shift. After a review of the way the ODP works, we set the problem in the framework of Lorentz (and Galilean) transformations and evaluate the correction; it is several orders of magnitude below our experimental accuracy. We also discuss a recent paper \cite{kopeikin07}, which claims wrong and much larger corrections, and clarify the reasons for the discrepancy.
dc.descriptionFinal version accepted by Classical and Quantum Gravity (8 Jan. 2008)
dc.identifierhttps://arxiv.org/abs/0709.1512
dc.identifierhttp://arxiv.org/abs/0709.1512
dc.identifierClass. Quantum Grav. 25 045013
dc.identifierdoi:10.1088/0264-9381/25/4/045013
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/217884
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectGeneral Physics
dc.titleThe effect of the motion of the Sun on the light-time in interplanetary relativistic experiments
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