Pioneer 5 color picture |
Pioneer 5 color picture |
Jan 5 2007, 09:37 AM
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#1
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Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
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Jan 5 2007, 09:57 AM
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#2
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Founder Group: Chairman Posts: 14432 Joined: 8-February 04 Member No.: 1 |
I don't have a CLUE what they are - but I'll have a few guesses...
Attachments for cables to test array deployment in 1G environment. Launch restraint bolts. An instrument of some king for Mag etc? They look a little like the sort of motors we see all over the MER's - but I don't think they would be that. Doug |
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Jan 5 2007, 10:09 AM
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#3
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Senior Member Group: Members Posts: 1870 Joined: 20-February 05 Member No.: 174 |
Without knowing the answer, I strongly suspect magnetometer coils, though I have a very very vague recollection that they only got mag field parallel and perpendicular to the spin axis.
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Jan 5 2007, 10:48 AM
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#4
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Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
Without knowing the answer, I strongly suspect magnetometer coils, though I have a very very vague recollection that they only got mag field parallel and perpendicular to the spin axis. The Pioneer 5 magnetometer is usually said to be mounted on the instrument deck on the inside of the sphere (which caused data to be quite garbled). I think that they are some kind of solar panel extension dampers, but I am not sure |
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Jan 5 2007, 12:15 PM
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#5
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Senior Member Group: Members Posts: 1870 Joined: 20-February 05 Member No.: 174 |
I'm inclined to agree. The first spacecraft to get REALLY good interplanetary field data were the Interplanetary Pioneers (6-9) and Mariner 10. Previous missions like Mariners 2, 4 and 5 had headaches separating spacecraft magnetic fields from the weak solar field. Building a "Magnetically Clean" spacecraft is a pain, and is expensive. Mariner 10 cheated. They installed two magnetometers, one halfway out the magnetometer boom, the other at the end of the boom. Comparing the two sets of readings reduced the spacecraft field interference to a small fraction of the solar wind's field.
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Jan 5 2007, 01:06 PM
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#6
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Senior Member Group: Members Posts: 2488 Joined: 17-April 05 From: Glasgow, Scotland, UK Member No.: 239 |
The Pioneer 5 magnetometer is usually said to be mounted on the instrument deck on the inside of the sphere (which caused data to be quite garbled). I think that they are some kind of solar panel extension dampers, but I am not sure Paolo: They certainly look like pistons, whether used as dampers or during deployment. Bob Shaw -------------------- Remember: Time Flies like the wind - but Fruit Flies like bananas!
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Jan 5 2007, 01:22 PM
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#7
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Founder Group: Chairman Posts: 14432 Joined: 8-February 04 Member No.: 1 |
this image
http://upload.wikimedia.org/wikipedia/en/d/db/Pioneer_5.jpg Of P5 atop its LV without those features would suggest they're in the 'remove before flight' catagory. This may only be a coin, but it doesn't have them either http://www.farthestreaches.com/images/pioneer5f.jpg Not sure if this is a model - but they're not here either http://astro.zeto.czest.pl/sondy/pioneer5.jpg Doug |
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Jan 5 2007, 02:51 PM
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#8
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Director of Galilean Photography Group: Members Posts: 896 Joined: 15-July 04 From: Austin, TX Member No.: 93 |
Maybe they are some kind of handle for moving the solar panels?
-------------------- Space Enthusiast Richard Hendricks
-- "The engineers, as usual, made a tremendous fuss. Again as usual, they did the job in half the time they had dismissed as being absolutely impossible." --Rescue Party, Arthur C Clarke Mother Nature is the final inspector of all quality. |
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Jan 5 2007, 05:55 PM
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#9
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Member Group: Members Posts: 408 Joined: 3-August 05 Member No.: 453 |
Look like those silicone caulk dispensers to me.
Airbag |
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Jan 6 2007, 03:09 AM
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#10
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
I looked at Explorer 6, which closely resembles Pioneer 5, but it does not have
those blue cylinders, either. http://nssdc.gsfc.nasa.gov/planetary/image/explorer_6.jpg http://www1.cira.colostate.edu/ramm/hillge...rer-6_image.jpg http://www1.cira.colostate.edu/ramm/hillge...er-6_cover3.jpg Two more Pioneer 5 images: http://www1.cira.colostate.edu/ramm/hillge...eer-5_image.jpg http://www1.cira.colostate.edu/ramm/hillge...er-5_image2.jpg -------------------- "After having some business dealings with men, I am occasionally chagrined,
and feel as if I had done some wrong, and it is hard to forget the ugly circumstance. I see that such intercourse long continued would make one thoroughly prosaic, hard, and coarse. But the longest intercourse with Nature, though in her rudest moods, does not thus harden and make coarse. A hard, sensible man whom we liken to a rock is indeed much harder than a rock. From hard, coarse, insensible men with whom I have no sympathy, I go to commune with the rocks, whose hearts are comparatively soft." - Henry David Thoreau, November 15, 1853 |
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Mar 12 2010, 10:12 PM
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#11
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Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
We all forgot that yesterday was the 50th anniversary of the launch of Pioneer 5, the first true interplanetary probe
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