Voyager-1 at 100 AU!, A space milestone this month |
Voyager-1 at 100 AU!, A space milestone this month |
Aug 2 2006, 12:51 PM
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#1
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Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
Nobody highlighted this and I didn't find any comment from Nasa/Voyager sites.
On August,11 the intrepid Voyager-1 probe will reach 14.960 billion Km from the Sun, one hundred times the average Earth-Sun distance! This event will be followed, after 16 days, by the 100AU from Earth reach. From astrophysical standpoint, first event is the most important but, I think, most people will be emotionally hit from the second one. So I would like to start a poll on this. -------------------- I always think before posting! - Marco -
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Aug 2 2006, 01:29 PM
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#2
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Member Group: Members Posts: 809 Joined: 11-March 04 Member No.: 56 |
This event will be followed, after 16 days, by the 100AU from Earth reach. From astrophysical standpoint, first event is the most important but, I think, most people will be emotionally hit from the second one. Obviously, we need to celebrate continuously from August 11 to August 27. |
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Aug 2 2006, 02:32 PM
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#3
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Senior Member Group: Members Posts: 1636 Joined: 9-May 05 From: Lima, Peru Member No.: 385 |
I would rather prefer AU as the reference from Sun. The Earth is no longer as the center of the world which were tought in the older times....
Rodolfo |
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Aug 2 2006, 02:34 PM
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#4
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Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
Obviously, we need to celebrate continuously from August 11 to August 27. Not a bad idea! I must apologize on a little error in my first post. The 100AU from Earth event will occour on Aug,26 - not 27. I'm using NASA space simulator (what about other sources?) -------------------- I always think before posting! - Marco -
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Aug 2 2006, 03:35 PM
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#5
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Member Group: Members Posts: 295 Joined: 2-March 04 From: Central California Member No.: 45 |
I would rather prefer AU as the reference from Sun. The Earth is no longer as the center of the world which were tought in the older times.... Rodolfo While that may be true, it is still the 'point of origin' for the craft...didn't leave the sun to go on a journey... -------------------- Eric P / MizarKey
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Aug 2 2006, 07:20 PM
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#6
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Senior Member Group: Members Posts: 2917 Joined: 14-February 06 From: Very close to the Pyrénées Mountains (France) Member No.: 682 |
Dilo,
I understand you use Nasa space calculator but, does the difference goes as 100-1 for Earth distance or do you consider the EXACT position of Earth on August 25th? You know, the difference could be + or - 1 UA depending where's the Earth on its orbit. By the way, August 25th is prety close to celebrate the 17th anniversary of Voyager II fly-by of Neptune. By the way, if you open up a pool like arrival of Oppy at VC or Eagle, my bets are 100 UA from SUN first Can you tell us when the round trip signal will need 24 hours? -------------------- |
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Aug 2 2006, 10:01 PM
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#7
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Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
Climber, using Nasa space SIMulator is pretty easy to know the exact moment of both events, withut additional calculation... moreover, as you can see from following snapshot, Earth will be going farther from Voyager at this epoch, so no risk of "multiple" 100AU events!
We passed the time for 24hrs signal round trip (go and forth) in Nov 2002; if you are asking about the time when round trip signal will need 24 hours to reach Voyager (173 AU), this should happens at the beginning of 2027 but, unfortunately, at this epoch Voyager will be dead. -------------------- I always think before posting! - Marco -
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Aug 3 2006, 11:02 AM
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#8
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Senior Member Group: Members Posts: 2917 Joined: 14-February 06 From: Very close to the Pyrénées Mountains (France) Member No.: 682 |
this should happens at the beginning of 2027 but, unfortunately, at this epoch Voyager will be dead. Dilo, by then Voyager will already be 50. I thougth they'll expect them to last up to 2025 or may be it was 2015. -------------------- |
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Aug 3 2006, 11:58 AM
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#9
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Member Group: Members Posts: 115 Joined: 8-January 05 From: Austin | Texas Member No.: 138 |
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Aug 3 2006, 01:19 PM
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#10
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Senior Member Group: Members Posts: 2917 Joined: 14-February 06 From: Very close to the Pyrénées Mountains (France) Member No.: 682 |
I believe it's 2025-30 but there is no telling -- they may continue to work many years past that point. -------------------- |
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Aug 3 2006, 02:28 PM
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#11
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Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
http://voyager.jpl.nasa.gov/science/index.html
In about 10 years from now they will start to share power between instruments (now we are around 290W output, like Spirit at Gusev!). Let's hope ups is right (name seems appropriate!) -------------------- I always think before posting! - Marco -
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Aug 3 2006, 06:46 PM
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#12
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Member Group: Members Posts: 477 Joined: 2-March 05 Member No.: 180 |
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Aug 3 2006, 06:48 PM
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#13
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Member Group: Members Posts: 548 Joined: 19-March 05 From: Princeton, NJ, USA Member No.: 212 |
without a doubt, celebrate 100 AU from the sun
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Aug 3 2006, 09:50 PM
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#14
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Member Group: Members Posts: 562 Joined: 29-March 05 Member No.: 221 |
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Aug 4 2006, 04:28 PM
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#15
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
When the Pioneers and Voyagers are 100 light years from Sol, then we'll talk celebration.
If they can just track the Voyagers' radio signal after the probes are no longer able to power any of their science instruments, how many more years will that last and what science could we gain from it? -------------------- "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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