Odyssey: a solar system mission

Christophe, Bruno; Andersen, Per H.; Anderson, J. D.; Asmar, S. W.; Berio, P.; Bertolami, Orfeu; Bingham, R.; Bondu, F.; Bouyer, Philippe; Bremer, Stefanie; Courty, J. M.; Dittus, Hansjörg; Foulon, Bernard; Gil, P. J. S.; Johann, Ulrich; Jordan, J. F.; Kent, B. J.; Lämmerzahl, Cláus; Levy, A.; Métris, Gilles; Olsen, Øystein; Páramos, Jorge; Prestage, J. D.; Progrebenko, S.; Rasel, Ernst M.; Rathke, Andreas; Reynaud, Serge; Rievers, Benny; Samain, E.; Sumner, T. J.; Theil, Stephan; Touboul, Pierre; Turyshev, Slava G.; Vrancken, Patrick; Wolf, Peter; Yu, Nan

doi:10.1007/s10686-008-9084-y

Cited by 56 publications

(64 citation statements)

References 48 publications

(65 reference statements)

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“…Super-ASTROD [161], Odyssey [162], SAGAS (Search for Anomalous Gravitation using Atomic Sensors) [163] and OSS (Outer Solar System) [164] are four mission concept to test fundamental physics and to explore outer solar system. Solar System Odyssey [162] is designed to perform a comprehensive set of gravitational tests in the Solar System.…”

Section: Outlook -On Going and Next-generation Testsmentioning

confidence: 99%

“…Solar System Odyssey [162] is designed to perform a comprehensive set of gravitational tests in the Solar System. The mission has four major scientific objectives: (1) significantly improve the accuracy of deep space gravity test; (2) investigate planetary flybys; (3) improve the current accuracy of the measurements of the Eddington parameter; (4) map the gravity field in outer regions of the Solar System.…”

Section: Outlook -On Going and Next-generation Testsmentioning

confidence: 99%

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Solar-system tests of the relativistic gravity

2017

One Hundred Years of General Relativity

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In 1859, Le Verrier discovered the Mercury perihelion advance anomaly. This anomaly turned out to be the first relativistic-gravity effect observed. During the 157 years to 2016, the precisions and accuracies of laboratory and space experiments, and of astrophysical and cosmological observations on relativistic gravity have been improved by 3-4 orders of magnitude. The improvements have been mainly from optical observations at first followed by radio observations. The achievements for the past 50 years are from radio Doppler tracking and radio ranging together with lunar laser ranging. At the present, the radio observations and lunar laser ranging experiments are similar in the accuracy of testing relativistic gravity. We review and summarize the present status of solar-system tests of relativistic gravity. With planetary laser ranging, spacecraft laser ranging and interferometric laser ranging (laser Doppler ranging) together with the development of drag-free technology, the optical observations will improve the accuracies by another 3-4 orders of magnitude in both the equivalence principle tests and solar-system dynamics tests of relativistic gravity. Clock tests and atomic interferometry tests of relativistic gravity will reach an ever-increasing precision. These will give crucial clues in both experimental and theoretical aspects of gravity, and may lead to answers to some profound issues in gravity and cosmology.

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Section: Outlook -On Going and Next-generation Testsmentioning

confidence: 99%

Section: Outlook -On Going and Next-generation Testsmentioning

confidence: 99%

Solar-system tests of the relativistic gravity

2017

One Hundred Years of General Relativity

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“…The Solar System Odyssey mission will use modern-day high-precision experimental techniques to test the laws of fundamental physics, which determine dynamics in the solar system [78]. The mission design is similar to the one proposed for the Deep Space Gravity Probe (DSGP) [106].…”

Section: Efforts To Explain and Study The Anomalymentioning

confidence: 99%

The Pioneer Anomaly

Turyshev

Toth²

2010

Living Rev. Relativ.

136

148

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Radio-metric Doppler tracking data received from the Pioneer 10 and 11 spacecraft from heliocentric distances of 20–70 AU has consistently indicated the presence of a small, anomalous, blue-shifted frequency drift uniformly changing with a rate of ∼ 6 × 10−9 Hz/s. Ultimately, the drift was interpreted as a constant sunward deceleration of each particular spacecraft at the level of aP = (8.74 ± 1.33) × 10−10 m/s2. This apparent violation of the Newton’s gravitational inverse-square law has become known as the Pioneer anomaly; the nature of this anomaly remains unexplained. In this review, we summarize the current knowledge of the physical properties of the anomaly and the conditions that led to its detection and characterization. We review various mechanisms proposed to explain the anomaly and discuss the current state of efforts to determine its nature. A comprehensive new investigation of the anomalous behavior of the two Pioneers has begun recently. The new efforts rely on the much-extended set of radio-metric Doppler data for both spacecraft in conjunction with the newly available complete record of their telemetry files and a large archive of original project documentation. As the new study is yet to report its findings, this review provides the necessary background for the new results to appear in the near future. In particular, we provide a significant amount of information on the design, operations and behavior of the two Pioneers during their entire missions, including descriptions of various data formats and techniques used for their navigation and radio-science data analysis. As most of this information was recovered relatively recently, it was not used in the previous studies of the Pioneer anomaly, but it is critical for the new investigation.

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“…On the other hand the Hubble connection leads to an additional redshift ν ≈ H c −1 v t over time intervals t for space probes of the Pioneer type with nearly radial velocity v. This corresponds to the absolute value of the anomalous Pioneer acceleration, but is of wrong sign, if compared with the interpretation of the Pioneer team. Follow up experiments will be able to clarify the situation [9].…”

Section: First Comparison With Datamentioning

confidence: 98%

“…According to (9), it may be called warp gauge of the Robertson-Walker manifold, because the warp function is scaled to a constant. The other way round, the warp function is nothing but the integrated scale transfer of warp gauge (2)…”

Section: Cosmological Modelingmentioning

confidence: 99%

Cosmological Spacetimes Balanced by a Weyl Geometric Scale Covariant Scalar Field

Scholz

2008

Found Phys

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A Weyl geometric approach to cosmology is explored, with a scalar field φ of (scale) weight −1 as crucial ingredient besides classical matter. Its relation to Jordan-Brans-Dicke theory is analyzed; overlap and differences are discussed. The energy-stress tensor of the basic state of the scalar field consists of a vacuum-like term g μν with depending on the Weylian scale connection and, indirectly, on matter density. For a particularly simple class of Weyl geometric models (called EinsteinWeyl universes) the energy-stress tensor of the φ-field can keep space-time geometries in equilibrium. A short glance at observational data, in particular supernovae Ia (Riess et al. in Astrophys. J. 659:98ff, 2007), shows encouraging empirical properties of these models.

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Odyssey: a solar system mission

Abstract: The Solar System Odyssey mission uses modern-day high-precision experimental techniques to test the laws of fundamental physics which determine dynamics in the solar system. It could lead to major discoveries by B. Christophe (B) · B. Foulon · A.

Cited by 56 publications

References 48 publications

Solar-system tests of the relativistic gravity

Solar-system tests of the relativistic gravity

The Pioneer Anomaly

Cosmological Spacetimes Balanced by a Weyl Geometric Scale Covariant Scalar Field

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