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Voyager-1 at 100 AU!, A space milestone this month
which milestone is more important?
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dilo
post Aug 2 2006, 12:51 PM
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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.


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djellison
post Aug 15 2006, 03:44 PM
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It's only a couple of Kg - it may well be that the trajectory for the initial launches were such that additional payload capacity was available for V2 and thus it was tanked up a little heavier. (Identical LV's on slightly different traj's would suggest slightly different mass budgets perhaps)

Perhaps because V1 was the first one out the gate, the lessons learnt on how to minimise fuel useage were learnt on V1 and carried over to V2.

And it's not hard to imagine one extreme safing event causing a big chunk of fuel useage at some point during a 20+ year mission.

Lots of reasons that could cause the difference.

Doug
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Posts in this topic
- dilo   Voyager-1 at 100 AU!   Aug 2 2006, 12:51 PM
- - David   QUOTE (dilo @ Aug 2 2006, 12:51 PM) This ...   Aug 2 2006, 01:29 PM
|- - dilo   QUOTE (David @ Aug 2 2006, 01:29 PM) Obvi...   Aug 2 2006, 02:34 PM
- - RNeuhaus   I would rather prefer AU as the reference from Sun...   Aug 2 2006, 02:32 PM
|- - MizarKey   QUOTE (RNeuhaus @ Aug 2 2006, 07:32 AM) I...   Aug 2 2006, 03:35 PM
||- - Jeff7   QUOTE (MizarKey @ Aug 2 2006, 11:35 AM) W...   Aug 3 2006, 06:46 PM
||- - mars loon   without a doubt, celebrate 100 AU from the sun   Aug 3 2006, 06:48 PM
||- - paxdan   QUOTE (mars loon @ Aug 3 2006, 07:48 PM) ...   Aug 3 2006, 09:50 PM
|||- - JRehling   QUOTE (paxdan @ Aug 3 2006, 02:50 PM) Thi...   Aug 6 2006, 05:47 AM
||- - Holder of the Two Leashes   QUOTE (mars loon @ Aug 3 2006, 01:48 PM) ...   Aug 10 2006, 04:06 AM
||- - dilo   While Space simulator tell us today as the 100AU-f...   Aug 11 2006, 06:29 AM
|- - ljk4-1   QUOTE (RNeuhaus @ Aug 2 2006, 10:32 AM) I...   Aug 4 2006, 07:08 PM
- - climber   Dilo, I understand you use Nasa space calculator ...   Aug 2 2006, 07:20 PM
|- - dilo   Climber, using Nasa space SIMulator is pretty easy...   Aug 2 2006, 10:01 PM
|- - climber   QUOTE (dilo @ Aug 3 2006, 12:01 AM) this ...   Aug 3 2006, 11:02 AM
|- - ups   QUOTE (climber @ Aug 3 2006, 11:02 AM) D...   Aug 3 2006, 11:58 AM
|- - climber   QUOTE (ups @ Aug 3 2006, 01:58 PM) I beli...   Aug 3 2006, 01:19 PM
|- - dilo   http://voyager.jpl.nasa.gov/science/index.html In ...   Aug 3 2006, 02:28 PM
- - ljk4-1   When the Pioneers and Voyagers are 100 light years...   Aug 4 2006, 04:28 PM
- - ilbasso   QUOTE (Jeff7 @ Aug 3 2006, 02:46 PM) Cele...   Aug 4 2006, 04:48 PM
|- - dilo   QUOTE (ilbasso @ Aug 4 2006, 04:48 PM) We...   Aug 4 2006, 05:01 PM
- - Planet X   QUOTE (climber @ Aug 2 2006, 02:20 PM) By...   Aug 4 2006, 05:00 PM
- - Analyst   The two Voyager spacecraft have always been specia...   Aug 5 2006, 06:40 PM
|- - dilo   Well said, analist! Voyager mission is a mirac...   Aug 5 2006, 08:28 PM
- - Analyst   Voyager, the grand tour, started as the Thermoelec...   Aug 6 2006, 08:37 AM
|- - dilo   Thank you for the infos, Analyst!   Aug 6 2006, 10:11 PM
- - edstrick   The AIAA journal "Astronautics and Aeronautic...   Aug 6 2006, 08:43 AM
|- - ljk4-1   QUOTE (edstrick @ Aug 6 2006, 04:43 AM) T...   Aug 7 2006, 01:53 PM
|- - paxdan   QUOTE (ljk4-1 @ Aug 7 2006, 02:53 PM...   Aug 7 2006, 01:57 PM
|- - mchan   No, the Klingons blew P'neer to bits in one of...   Aug 8 2006, 01:09 AM
|- - ljk4-1   QUOTE (mchan @ Aug 7 2006, 09:09 PM) No, ...   Aug 8 2006, 01:27 AM
- - Phil Stooke   Party Poopers! Celebrate both occasions... P...   Aug 11 2006, 01:46 PM
- - SigurRosFan   Here's my 100 AU prediction: August 12, 2006, ...   Aug 11 2006, 08:53 PM
- - SigurRosFan   11:25 UT ... - http://www.heavens-above.com/sola...   Aug 12 2006, 11:27 AM
- - Planet X   Why is there such a lack of coverage on this impor...   Aug 12 2006, 07:05 PM
- - djellison   Planetary Radio covered it this week with Ed Stone...   Aug 15 2006, 12:58 PM
|- - dilo   Thanks for the highlight, Doug! Ed had the inc...   Aug 15 2006, 03:21 PM
- - ljk4-1   Very nice charts, Dilo, thanks. Considering that ...   Aug 15 2006, 03:32 PM
- - remcook   QUOTE (dilo)I made these plots based on weekly rep...   Aug 15 2006, 03:42 PM
- - djellison   It's only a couple of Kg - it may well be that...   Aug 15 2006, 03:44 PM
- - Analyst   The Voyager 2 launch window has been more demandin...   Aug 15 2006, 04:49 PM
- - ljk4-1   The Guardian had an editorial on the Voyager 1 100...   Aug 15 2006, 08:32 PM
|- - dilo   Finally, JPL news reported it! The date is 3/4...   Aug 16 2006, 09:14 PM
|- - dilo   ...and NASA too!   Aug 17 2006, 05:35 PM
- - RNeuhaus   New Horizonts salutes Voyager. Though New Horizon...   Aug 19 2006, 01:10 AM
|- - dilo   Thanks, Rodolfo. Let's hope NH will be operati...   Aug 19 2006, 05:14 AM
- - mimile   That is a very late answer for V1 (and quite early...   Dec 25 2006, 10:17 AM
- - centsworth_II   QUOTE (mimile @ Dec 25 2006, 05:17 AM) .....   Dec 25 2006, 07:25 PM

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