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Uranus Orbiter, The other proposed ice-giant mission
Rob Pinnegar
post Nov 11 2005, 05:13 PM
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Since the Neptune Orbiter thread has started to veer into talking about a Uranus orbiter as well, it seemed like a good idea to start a topic for Uranus.
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Spirit
post Sep 22 2007, 11:45 AM
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What about building two identical probes and launching one to Uranus and the second to Neptune? It will certainly lower the cost of the missions. And if we launch them at appropriate times, we can have the same team working on both projects - first on Uranus Orbiter and later on Neptune Orbiter.


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infocat13
post Sep 24 2007, 10:45 PM
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QUOTE (Spirit @ Sep 22 2007, 07:45 AM) *
What about building two identical probes and launching one to Uranus and the second to Neptune? It will certainly lower the cost of the missions. And if we launch them at appropriate times, we can have the same team working on both projects - first on Uranus Orbiter and later on Neptune Orbiter.


Spirit,

I remember A while back NASA had idea much like yours , it was called Mariner Mark 2 I believe. You could goggle this.I think it is a great idea perhaps now in our era a massed produced space craft modeled after the Jupiter and Saturn orbiters could be built minus the instruments and electronics and stored(off the shelf)then as opportunities came up do to orbital mechanics science instruments specific to that mission would be added to the off the shelf spacecraft body and launched.
Questions I would have would be assuming we are using the Galileo design and we where building two space craft for Uranus Neptune and a re flight to Saturn and Jupiter IE 8 space craft with one atmospheric probe each. what would a JPL cost engineer cost these out as ?
Issues..................
(1) can a modular mass produce space craft design accept somewhat different scientific instrument suite for each outer planet?
(2) would a mass produced set off atmospheric probes work at each outer planet? each would need a somewhat different reentry cone?
(3) Could the Deep space network handle a outer planet mission launched every year or every two years?

mariner mark 2 according to Wiki
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JRehling
post Sep 25 2007, 05:03 AM
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QUOTE (infocat13 @ Sep 24 2007, 03:45 PM) *
(1) can a modular mass produce space craft design accept somewhat different scientific instrument suite for each outer planet?
(2) would a mass produced set off atmospheric probes work at each outer planet? each would need a somewhat different reentry cone?
(3) Could the Deep space network handle a outer planet mission launched every year or every two years?


Jupiter and Saturn have already been revisted since Voyager, and followups to those systems (eg, a Europa Orbiter, Juno) are going to be more specialized.

Saturn, Uranus, and Neptune coincidentally have about the same cloudtop gravity, so entry probes hitting all three places would accelerate similarly. However, Saturn has a greater escape velocity, so the Saturn probe would arrive at a higher velocity. I guess though that with a very superficial difference in design, one approach could work for all three.

Jupiter presents very different parameters, and has already received an entry probe. Although a design that worked for Jupiter would work in the other places.

The extreme differential in flight times would mitigate any worries about DSN time. Moreover, with probes in elliptical orbits, the encounter-rich time in each orbit could be staggered from one mission to the next.
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Posts in this topic
- Rob Pinnegar   Uranus Orbiter   Nov 11 2005, 05:13 PM
- - tasp   QUOTE (Rob Pinnegar @ Nov 11 2005, 11:13 AM)S...   Nov 11 2005, 05:46 PM
- - tasp   I admit a keen interest in Uranus. The mass ratio...   Nov 11 2005, 06:08 PM
|- - Rob Pinnegar   QUOTE (tasp @ Nov 11 2005, 12:08 PM)Would Hub...   Nov 11 2005, 07:15 PM
|- - AlexBlackwell   QUOTE (Rob Pinnegar @ Nov 11 2005, 07:15 PM)T...   Nov 11 2005, 07:59 PM
|- - tasp   QUOTE (AlexBlackwell @ Nov 11 2005, 01:59 PM)...   Nov 12 2005, 02:21 PM
|- - AlexBlackwell   QUOTE (tasp @ Nov 12 2005, 02:21 PM)I'll ...   Nov 15 2005, 06:15 PM
|- - tasp   {In re the 20 year mission life at Uranus} I real...   Nov 15 2005, 07:29 PM
- - Rob Pinnegar   Yeah, thanks Alex -- that link was a good read. Ve...   Nov 13 2005, 01:49 AM
|- - AlexBlackwell   QUOTE (Rob Pinnegar @ Nov 13 2005, 01:49 AM)Y...   Nov 15 2005, 06:01 PM
|- - hendric   QUOTE (AlexBlackwell @ Nov 15 2005, 12:01 PM)...   Nov 16 2005, 08:54 AM
|- - AlexBlackwell   QUOTE (hendric @ Nov 16 2005, 08:54 AM)For ...   Nov 16 2005, 05:56 PM
|- - tasp   QUOTE (AlexBlackwell @ Nov 16 2005, 11:56 AM)...   Nov 16 2005, 06:19 PM
|- - AlexBlackwell   QUOTE (tasp @ Nov 16 2005, 06:19 PM)I confess...   Nov 23 2005, 01:49 AM
- - tasp   Without incurring copyright snags, of course, coul...   Nov 15 2005, 06:16 PM
|- - AlexBlackwell   QUOTE (tasp @ Nov 15 2005, 06:16 PM)Without i...   Nov 15 2005, 06:34 PM
|- - tasp   QUOTE (AlexBlackwell @ Nov 15 2005, 12:34 PM)...   Nov 26 2005, 02:27 PM
- - BruceMoomaw   Orbiting Ariel would be a remarkable ending to thi...   Nov 15 2005, 07:31 PM
|- - Bob Shaw   A long time ago (the early 1970s!), I suggeste...   Nov 15 2005, 10:13 PM
- - BruceMoomaw   Well, shucks, how can anybody not jump at a bargai...   Nov 16 2005, 09:23 AM
- - BruceMoomaw   The best way to orbit -- or land on -- either Plut...   Nov 26 2005, 09:23 PM
|- - tasp   QUOTE (BruceMoomaw @ Nov 26 2005, 03:23 PM)Th...   Nov 27 2005, 01:15 AM
- - BruceMoomaw   McRonald's best paper on the subject seems to ...   Nov 27 2005, 03:17 AM
|- - tasp   QUOTE (BruceMoomaw @ Nov 26 2005, 09:17 PM)Mc...   Nov 27 2005, 03:58 AM
- - BruceMoomaw   Just keep in mind that -- because Pluto's grav...   Nov 27 2005, 10:00 AM
|- - tasp   QUOTE (BruceMoomaw @ Nov 27 2005, 04:00 AM)Ju...   Nov 28 2005, 04:45 AM
- - dvandorn   The biggest problem with using steerable aerocaptu...   Nov 29 2005, 02:32 PM
|- - tasp   QUOTE (dvandorn @ Nov 29 2005, 08:32 AM)Like ...   Nov 29 2005, 03:38 PM
- - centsworth_II   What about a small,simple atmospheric probe that w...   Nov 29 2005, 05:49 PM
- - BruceMoomaw   You don't need to grasp at straws -- Tasp...   Nov 29 2005, 09:23 PM
- - BruceMoomaw   The document for simulation tests for a Neptune or...   Nov 30 2005, 08:29 AM
|- - tasp   QUOTE (BruceMoomaw @ Nov 30 2005, 02:29 AM)Th...   Nov 30 2005, 04:36 PM
|- - vexgizmo   An excuse to post in the oh-so-obscure Uranus Orbi...   Feb 2 2006, 07:46 AM
|- - JRehling   QUOTE (tasp @ Nov 30 2005, 08:36 AM)Weird it ...   Feb 2 2006, 05:30 PM
- - PhilHorzempa   Time to re-start this thread. Thanks to Cassini, ...   Apr 9 2007, 05:07 PM
|- - JRehling   QUOTE (PhilHorzempa @ Apr 9 2007, 10:07 A...   Apr 10 2007, 03:02 PM
- - Cugel   Let's not forget that at Neptune Triton would ...   Apr 9 2007, 06:33 PM
|- - PhilHorzempa   QUOTE (Cugel @ Apr 9 2007, 02:33 PM) Let...   Apr 9 2007, 08:52 PM
- - Cugel   I stand corrected. I just wasn't following thi...   Apr 10 2007, 12:12 AM
- - Greg Hullender   Apparently the big reason to prefer Neptune to Ura...   Apr 10 2007, 12:53 AM
- - dvandorn   The other attraction of Triton is, of course, that...   Apr 10 2007, 03:22 PM
|- - JRehling   QUOTE (dvandorn @ Apr 10 2007, 08:22 AM) ...   Apr 10 2007, 05:37 PM
|- - hendric   QUOTE (JRehling @ Apr 10 2007, 12:37 PM) ...   Apr 10 2007, 09:10 PM
- - Rob Pinnegar   A couple of random thoughts in favour of Neptune o...   Apr 11 2007, 03:28 PM
|- - David   QUOTE (Rob Pinnegar @ Apr 11 2007, 03:28 ...   Apr 25 2007, 01:28 AM
- - jsheff   Don't forget that both of them have ring syste...   Apr 21 2007, 08:42 PM
- - Jyril   And don't forget Neptune's second largest ...   Apr 22 2007, 05:08 PM
- - Spirit   What about building two identical probes and launc...   Sep 22 2007, 11:45 AM
|- - infocat13   QUOTE (Spirit @ Sep 22 2007, 07:45 AM) Wh...   Sep 24 2007, 10:45 PM
|- - AscendingNode   QUOTE (infocat13 @ Sep 24 2007, 03:45 PM)...   Sep 25 2007, 12:12 AM
|- - JRehling   QUOTE (infocat13 @ Sep 24 2007, 03:45 PM)...   Sep 25 2007, 05:03 AM
- - djellison   Sounds great! You paying? Seriously - that...   Sep 22 2007, 12:12 PM
|- - JRehling   QUOTE (djellison @ Sep 22 2007, 05:12 AM)...   Sep 22 2007, 06:14 PM
|- - AscendingNode   QUOTE (JRehling @ Sep 22 2007, 11:14 AM) ...   Sep 23 2007, 05:18 AM
|- - JRehling   QUOTE (AscendingNode @ Sep 22 2007, 10:18...   Sep 23 2007, 05:56 AM
|- - ugordan   Regarding attitude-control propellant (i.e. monopr...   Sep 23 2007, 10:41 AM
|- - AscendingNode   QUOTE (JRehling @ Sep 22 2007, 10:56 PM) ...   Sep 23 2007, 02:25 PM
|- - ugordan   QUOTE (AscendingNode @ Sep 23 2007, 04:25...   Sep 23 2007, 03:00 PM
|- - JRehling   QUOTE (AscendingNode @ Sep 23 2007, 07:25...   Sep 23 2007, 09:07 PM
- - brellis   A mothership with a bunch of micro-landers would b...   Sep 22 2007, 04:37 PM
- - djellison   Whilst orbital mechanics dictate that sending Cass...   Sep 23 2007, 05:21 PM
- - tasp   I admit a burning desire for a Uranian orbiter (he...   Sep 23 2007, 05:48 PM
- - djellison   I think Neptune and Uranus orbiters are going to r...   Sep 23 2007, 06:11 PM
- - mchan   Will RTG power levels be sufficient to operate all...   Sep 23 2007, 09:09 PM
|- - tedstryk   Well, 42 years, really. That's how long till ...   Sep 24 2007, 10:11 AM
|- - ugordan   QUOTE (tedstryk @ Sep 24 2007, 12:11 PM) ...   Sep 24 2007, 11:05 AM
- - tasp   The Galileo style tour of the Uranian system is qu...   Sep 24 2007, 12:51 PM
|- - djellison   QUOTE (tasp @ Sep 24 2007, 01:51 PM) A Ur...   Sep 24 2007, 01:52 PM
||- - AscendingNode   QUOTE (djellison @ Sep 24 2007, 06:52 AM)...   Sep 24 2007, 05:34 PM
||- - djellison   QUOTE (AscendingNode @ Sep 24 2007, 06:34...   Sep 24 2007, 05:49 PM
|- - JRehling   I think one difficulty owing to the no-big-moon si...   Sep 24 2007, 03:41 PM
|- - dvandorn   QUOTE (JRehling @ Sep 24 2007, 10:41 AM) ...   Sep 24 2007, 04:32 PM
|- - AscendingNode   QUOTE (JRehling @ Sep 24 2007, 08:41 AM) ...   Sep 24 2007, 05:37 PM
|- - JRehling   Another consideration, a happy one, is that for th...   Sep 25 2007, 02:46 PM
- - djellison   The paper cited above actually discusses the plane...   Sep 24 2007, 03:46 PM
- - nprev   Infocat, I and others on the board have had variat...   Sep 25 2007, 01:00 AM
- - brellis   QUOTE requirements for planetary missions tend to ...   Sep 25 2007, 01:30 AM
|- - nprev   QUOTE (brellis @ Sep 24 2007, 06:30 PM) I...   Sep 25 2007, 03:40 AM
|- - dvandorn   QUOTE (nprev @ Sep 24 2007, 10:40 PM) ......   Sep 25 2007, 05:42 AM
|- - brellis   QUOTE (nprev @ Sep 24 2007, 08:40 PM) Can...   Sep 25 2007, 08:42 AM
- - tasp   Yeah, the Longuski paper describes a mission phase...   Sep 25 2007, 02:19 AM
- - dvandorn   Anyone have any charts handy telling us when we ha...   Sep 25 2007, 05:51 AM
- - mchan   To a first order, there can be Jupiter gravity ass...   Sep 25 2007, 07:30 AM
- - Spirit   Maybe we'll have another opportunity to flyby ...   Sep 25 2007, 04:23 PM
|- - JRehling   QUOTE (Spirit @ Sep 25 2007, 09:23 AM) Ma...   Sep 25 2007, 06:06 PM
- - algorimancer   Perhaps slightly off-topic, but there have been se...   Sep 25 2007, 07:45 PM
- - tedstryk   QUOTE (algorimancer @ Sep 25 2007, 07:45 ...   Sep 25 2007, 09:08 PM
- - algorimancer   QUOTE (tedstryk @ Sep 25 2007, 04:08 PM) ...   Sep 26 2007, 12:37 PM


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