# Study of the anomalous acceleration of Pioneer 10 and 11

@article{Anderson2002StudyOT, title={Study of the anomalous acceleration of Pioneer 10 and 11}, author={John David Anderson and Philip A. Laing and Eunice L. Lau and Anthony S. Liu and Michael Martin Nieto and Slava G. Turyshev}, journal={Physical Review D}, year={2002}, volume={65}, pages={082004} }

Our previous analyses of radio Doppler and ranging data from distant spacecraft in the solar system indicated that an apparent anomalous acceleration is acting on Pioneer 10 and 11, with a magnitude a_P ~ 8 x 10^{-8} cm/s^2, directed towards the Sun (anderson,moriond). Much effort has been expended looking for possible systematic origins of the residuals, but none has been found. A detailed investigation of effects both external to and internal to the spacecraft, as well as those due to…

## 261 Citations

### A STUDY OF THE PIONEER ANOMALY: NEW DATA AND OBJECTIVES FOR NEW INVESTIGATION

- PhysicsInternational Journal of Modern Physics D
- 2006

The Pioneer 10/11 spacecraft yielded the most precise navigation in deep space to date. However, their radiometric tracking data has consistently indicated the presence of a small, anomalous, Doppler…

### Support for temporally varying behavior of the Pioneer anomaly from the extended Pioneer 10 and 11 Doppler data sets.

- PhysicsPhysical review letters
- 2011

The constancy and direction of the Pioneer anomaly is examined and it is concluded that the data favor a temporally decaying anomalous acceleration with an over 10% improvement in the residuals compared to a constant acceleration model.

### Physics Engineering in the Study of the Pioneer Anomaly

- Physics
- 2007

The Pioneer 10/11 spacecraft yielded the most precise navigation in deep space to date. However, their radio-metric tracking data received from the distances between 20--70 astronomical units from…

### The Pioneer Anomaly

- PhysicsLiving reviews in relativity
- 2010

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.

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

- Physics
- 2014

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…

### Thermal Effects in Interplanetary Spacecraft : The Pioneer Anomaly

- Physics, Geology
- 2009

The existence of a Sun-bound anomalous acceleration on the Pioneer 10 and 11 spacecraft with a magnitude of aPio = (8.74± 1.33)× 10−10 m/s has been put forward about a decade ago [1], and…

### Using early data to illuminate the Pioneer anomaly

- Physics
- 2005

Analysis of the radio tracking data from the Pioneer 10/11 spacecraft at distances between about 20–70 AU from the Sun has consistently indicated the presence of an unmodelled, small, constant,…

### The Pioneer Anomaly in the Light of New Data

- PhysicsSpace Science Reviews
- 2009

The radio-metric tracking data received from the Pioneer 10 and 11 spacecraft from the distances between 20–70 astronomical units from the Sun has consistently indicated the presence of a small,…

### A Route to Understanding of the Pioneer Anomaly

- Physics, Geology
- 2004

The Pioneer 10 and 11 spacecraft yielded the most precise navigation in deep space to date. However, while at heliocentric distance of $\sim$ 20--70 AU, the accuracies of their orbit reconstructions…

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