Pioneer 10 and 11 orbit determination analysis shows no discrepancy with Newton-Einstein laws of gravity

  title={Pioneer 10 and 11 orbit determination analysis shows no discrepancy with Newton-Einstein laws of gravity},
  author={Dario Modenini and Paolo Tortora},
  journal={Physical Review D},
The present work describes the investigation of the navigation anomaly of Pioneer 10 and 11 probes which became known as the Pioneer Anomaly. It appeared as a linear drift in the Doppler data received by the spacecraft, which has been ascribed to an approximately constant sunward acceleration of about $8.5 \times 10^{-13} km/s^2$. Since then, the existence of the anomaly has been confirmed independently by several groups and a large effort was devoted to find its origin. The present study… 
Pioneer 10 and 11 Spacecraft Anomalous Acceleration in the light of the Nonsymmetric Kaluza–Klein (Jordan–Thiry) Theory
The Nonsymmetric Kaluza–Klein (Jordan–Thiry) Theory leads to a model of a modified acceleration that can fit an anomalous acceleration experienced by the Pioneer 10 and 11 spacecraft. The future
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  • 2019
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A significant amount of information is provided 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.
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Support for temporally varying behavior of the Pioneer anomaly from the extended Pioneer 10 and 11 Doppler data sets.
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Support for the thermal origin of the pioneer anomaly.
A comprehensive finite-element thermal model of the Pioneer 10 and 11 spacecraft is constructed and it is found that the magnitude, temporal behavior, and direction of the resulting thermal acceleration are all similar to the properties of the observed anomaly.
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