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Projects: Pioneer Anomaly

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Media contact:
Susan Lendroth
susan.lendroth@planetary.org
(626) 793-5100

Latest Press Release

June 5, 2006 - 30 Years of Pioneer Spacecraft Data Rescued:The Planetary Society Enables Study of the Mysterious Pioneer Anomaly

Project Updates
Reports on the status of the analysis of the Pioneer anomaly

Technical Information
Information on the Pioneer spacecraft, the data recovery, and the Pioneer anomaly.

Images

Pioneer Anomaly Data Tapes
Pioneer Anomaly Data Tapes
Before The Planetary Society stepped in to help, only about 11 years of Pioneer Doppler data had been analyzed, and the Pioneer anomaly remained a mystery. A lot of the remaining data (more than 19 years of it) were stored on old 7- and 9-track magnetic tapes needed to be saved and converted to modern media. By June 2006, scientists and engineers led by Slava Turyshev at the Jet Propulsion Laboratory were able to recover much of the more than 30-year navigational histories of both spacecraft. Color: True color. Credit: JPL
Paths of the Pioneer 10 and 11, Voyager 1 and 2, and Ulysses spacecraft
Paths of the Pioneer 10 and 11, Voyager 1 and 2, and Ulysses spacecraft
Pioneer 10 launch
Pioneer 10 launch
Pioneer 10 began its journey to Jupiter and Saturn on March 2, 1972 at 8:49 p.m. EST. Credit: NASA
Pioneer 10 or 11
Pioneer 10 or 11
Credit: NASA