The Pioneer Anomaly |
The Pioneer Anomaly |
Aug 16 2005, 04:27 PM
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Rover Driver Group: Members Posts: 1015 Joined: 4-March 04 Member No.: 47 |
http://www.planetary.org/news/2005/pioneer_anomaly_faq.html
The planetary society may be checking it out... QUOTE The Planetary Society has committed to raise the funds to preserve the priceless Pioneer data from destruction.
After years of analysis, but without a final conclusion, NASA, astonishingly, gave up trying to solve the "Pioneer Anomaly" and provided no funds to analyze the data. The Pioneer data exists on a few hundred ancient 7- and 9-track magnetic tapes, which can only be read on "antique" outdated computers. The agency is going to scrap, literally demolish, the only computers able to access and process that data in the next few months! |
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Jun 27 2007, 03:20 PM
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Member Group: Members Posts: 153 Joined: 14-August 06 Member No.: 1041 |
Interesting comment within the article:
http://space.newscientist.com/article/dn12...y-in-doubt.html QUOTE Myles Standish, who calculates solar system motions at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California, says most scientists suspect the asymmetrical radiation of heat from the spacecraft is to blame. But he also acknowledges that the orbits of Uranus, Neptune and Pluto have not been measured as precisely as those of the inner planets, suggesting the new study by Tangen cannot rule out modified gravity as a cause. "The measurements are not able to support any definite conclusions," he told New Scientist. Tangen did not consider the cases which would involve violation of the equivalence principle, so Tangen has only addressed a small subset of possible scenarios, establishing modest constraints. If the anomaly is a function of the radial velocity relative to the sun as Mongo supposed; if I remember right, Pioneer 11's last gravitational assist swung it initially on a vector that passed closer to sun than the Saturn orbit. The extended data set retrieved by the Planetary Society includes this period, so any radial dependance may be apparent in this extended data set. |
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