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 The Pioneer data exists on a few hundred ancient 7- and 9-track magnetic tapes, which can only be read on "antique" outdated computers.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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Jan 5 2006, 02:58 PM
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Founder Group: Chairman Posts: 14448 Joined: 8-February 04 Member No.: 1 |
Damn good point actually UG - hadnt thought of that.
Then again, they're planning a yearly checkout iirc though - and that may involved pitching/rolling/yawing the spacecraft to look at astronomical calibration targets, which would trash the effect wouldnt it? QUOTE (pluto.jhuapl.edu) activities during the approximately 8-year cruise to Pluto include annual spacecraft and instrument checkouts, trajectory corrections, instrument calibrations and Pluto encounter rehearsals. Doug |
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Jan 5 2006, 03:05 PM
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Senior Member Group: Members Posts: 3652 Joined: 1-October 05 From: Croatia Member No.: 523 |
QUOTE (djellison @ Jan 5 2006, 03:58 PM) Then again, they're planning a yearly checkout iirc though - and that may involved pitching/rolling/yawing the spacecraft to look at astronomical calibration targets, which would trash the effect wouldnt it? I don't think it would trash the effect. At least much. They'll still have periods of inertial coast in between and still see if the modelled-out Doppler plots fit with the observed segments. A residual should still be detectable, though it won't take time do reach a big, nice and well-detectable magnitude before another "trashing" period. Then again, the s/c will probably have more stable RF oscillators so the balance could still hold. On the other side, I vaguely *seem* to remember reading somewhere that NH actually won't be a good tool to measure the acceleration, I forget why. Might have been something with the ultrastable oscillators thing. Might have been a pigment of my imagination... -------------------- |
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