منابع مشابه
The Pioneer Anomaly
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 ± ...
متن کاملFinding the Origin of the Pioneer Anomaly
Analysis of the radio tracking data from the Pioneer 10/11 spacecraft at distances between 20 70 AU from the Sun has consistently indicated the presence of an anomalous, small Doppler frequency drift. The drift can be interpreted as being due to a constant acceleration of aP = (8.74 ± 1.33) × 10 −8 cm/s directed towards the Sun. (A factor of 0.90 × 10 cm/s came from bias estimation). Although i...
متن کاملPioneer anomaly and the helicity-rotation coupling
The modification of the Doppler effect due to the coupling of the helicity of the radiation with the rotation of the source/receiver is considered in the case of the Pioneer 10/11 spacecraft. We explain why the Pioneer anomaly is not influenced by the helicity-rotation coupling. PACS: 03.30.+p ; 04.20.Cv
متن کاملParametric invariance and the Pioneer anomaly
It is usually assumed that the t parameter in the equations of dynamics can be identified with the indication of the pointer of a clock. Things are not so simple, however. In fact, since the equations of motion can be written in terms of t but also of t′ = f(t), f being any well behaved function, any one of those infinite parametric times t′ is as good as the Newtonian one to study classical dy...
متن کاملA Mission to Test the Pioneer Anomaly
Analysis of the radio tracking data from the Pioneer 10/11 spacecraft has consistently indicated the presence of an anomalous small Doppler frequency drift. The drift can be interpreted as being due to a constant acceleration of aP = (8.74 ± 1.33) × 10 −8 cm/s directed towards the Sun. Although it is suspected that there is a systematic origin to the effect, none has been found. The nature of t...
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ژورنال
عنوان ژورنال: Living Reviews in Relativity
سال: 2010
ISSN: 2367-3613,1433-8351
DOI: 10.12942/lrr-2010-4