The Pioneer Anomaly: Data Analysis and Mission Proposal

Details The Pioneer Anomaly: Data Analysis and Mission Proposal The Pioneer Anomaly: Data Analysis and Mission Proposal

Jul 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007sf2a.conf..100l&link_type=abstract

SF2A-2007: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics held in Grenoble, France, July

Astronomy and Astrophysics

Astrophysics

Scientific paper

The Pioneer 10 and 11 spacecrafts show an anomalous Sun-ward acceleration with a nearly constant value. This paper reports the work of the french teams which have formed the Groupe Anomalie Pioneer (GAP) to study this anomaly. A new orbit determination software has been developped which has already led to an independant confirmation of the existence of an anomaly. Missions have been proposed in the framework of the ESA Cosmic Vision process. The mission named Odyssey aims at testing General Relativity at heliocentric distances up to 50 AU. The principle of the test is to compare the range using DSN techniques to the prediction of General Relativity. A crucial instrument is the accelerometer embarked on board to measure the non geodesic acceleration and account for it in the navigation software.

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