European Space Agency Launches New Orbital Supply Ship 129
erik.martino brings us a story about the European Space Agency's successful launch of a new type of cargo ship to resupply the ISS. The first Automated Transport Vehicle (ATV), named after Jules Verne, is the "very first spacecraft in the world designed to conduct automated docking in full compliance with the very tight safety constraints imposed by human spaceflight operations." Among other things, it carries water, oxygen, and propellant to help boost the ISS to a higher orbit. We recently discussed NASA's need for a new cargo transport system. Quoting:
"Beyond Jules Verne, ESA has already contracted industry to produce four more ATVs to be flown through to 2015. With both ESA's ATV and Russia's Progress, the ISS will be able to rely on two independent servicing systems to ensure its operations after the retirement of the US space shuttle in 2010. It incorporates a 45-m3 pressurised module, derived from the Columbus pressure shell, and a Russian-built docking system, similar to those used on Soyuz manned ferries and on the Progress re-supply ship. About three times larger than its Russian counterpart, it can also deliver about three times more cargo."
Automated? (Score:3, Insightful)
I think this is a pretty big step forward.
Why do you think that? (Score:5, Informative)
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Does America get all its ideas from cartoon factories featuring funny robotic assembly lines?
No, we also draw strategic foreign policy ideas from the "Kill da wabbit!" cartoon.
Grapple arm? (Score:4, Informative)
You don't know what you are talking about. A grapple arm has never been used to dock a craft to ISS and never will. You may complain that the shuttle uses a human in the loop to dock with the ISS. I think the caution is warranted considering the orbiter weighs 285000 lbs and carries 7 crew. Orion will have a standard docking adapter and can fly unmanned. So will SpaceX and Taurus II.
Re:Grapple arm? (Score:4, Informative)
It won't be able to dock without help from the station's arm.
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http://www.spacex.com/00Graphics/Videos/Dragon_ISS_Rendezvous.mpg [spacex.com]
Granted, it hasn't happened yet, but it sure is in the planning stages.
Shocked that you got modded up (Score:2)
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These days, they've gotten it to the point where it works quite well, although this certainly wasn't always the case.
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That ship wasn't carrying the automatic docking system; they'd left it off to save money, and had asked one of the cosmonauts on board to steer it in manually.
So, for the record: Russian automatic docking systems were already better than human cosmonauts ten years ago.
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Re:Why do you think that? (Score:5, Informative)
The Progress uses a multi-antenna radar system named KURS [wikipedia.org].
The ATV uses a specifically made video meter [sodern.fr] (PDF).
Thanx (Score:2)
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In fact, (Score:2)
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Although the Russians have indeed used automated docking systems since the 60's, I don't really think you can say the ATV's system is anything but loosely based on the Russian system. The ATV uses GPS and laser guidance (in a pretty different way to the Russian designs).
Re:Automated? (Score:5, Funny)
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Re:Automated? (Score:5, Insightful)
See? (Score:2, Insightful)
See what you can achieve if you don't go around wasting your budget on invasions to satisfy someones cracked idea of a new American century?
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I don't like the war either. I think its a huge waste of money and an important issue. But this post is about the new orbital supply ship from Europe. The only thing this post has to do with the war is, and even the user agrees, the fact it says "European" and not "American". If that. I too wish we could divert all funds from our bloated and un-needed war machine and redirect it to space exploration so we can get off this rock and try out again somewhere else...especiall
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The real test (Score:4, Insightful)
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But apart from those four basic functions, ATV does the rest of the docking by itself.
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Not trivial (Score:4, Informative)
Re:Not trivial (Score:5, Insightful)
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actually Mir never wore out, it had a few broken bits, but it could have kept on going just fine. The only reason it was destroyed was because it was replaced by the ISS, Russia agreed to ditch Mir to focus on the ISS.
The trouble with Mir was that it was a serious accident waiting to happen. Mir was built on the classic Soviet engineering model of "expediency rather than telling your boss it can't be done without (X) and getting sent to the gulag*".
* OK, engineers weren't sent to the gulag for that, but it was not unheard of to suddenly be reassigned as Third Assistant Headlight Bezel Engineer at the GAZ Truck Factory for "not being a team player".
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Re:Not trivial (Score:4, Insightful)
political meddling (Score:2)
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Re:Not trivial (Score:5, Interesting)
http://en.wikipedia.org/wiki/Shuttle-Mir_Program#Priroda.2C_fire_and_collision_.281996.E2.80.931997.29 [wikipedia.org]
Foale's Increment proceeded fairly normally until June 25, when during the second test of the Progress manual docking system, TORU, the resupply ship collided with solar arrays on the Spektr module and crashed into the module's outer shell, holing the module and causing a depressurisation of the station, the first ever on-orbit depressurisation in the history of spaceflight. Only quick actions on the part of the crew, cutting cables leading to the module and closing Spektr's hatch, prevented the crew abandoning the station in their Soyuz lifeboat.
Non-reusable vehicles (Score:5, Insightful)
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Perhaps is says something about the ultimate utility of single use ships as opposed to reusable.
Re:Non-reusable vehicles (Score:5, Insightful)
Re:Non-reusable vehicles (Score:5, Insightful)
The russian space program has been way ahead of us in orbital operations for decades. That stupid shuttle set up back 20 years.
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That's what many people believe. In reality, no rocket has really flown enough to build a valid experience base - and within the limits of currently available data the difference in reliability and safety between the US and Russia is essentially statistically insensible. (IIRC somewhere around 98.3% of the US and 98.5% for the Russians.)
Re:Non-reusable vehicles (Score:4, Insightful)
Right, but the Russians are paying significantly less, both in upfront and per-mission costs for their Soyuz and Progress launches than we are for our shuttle launches. Essentially we're getting the same reliability as the Russians, but paying a lot more for it.
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Well, that's not surprising since the Soyuz and Progress are significantly less capable. Buying something less capable is usually cheaper after all.
Re:Non-reusable vehicles (Score:4, Interesting)
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Re:Non-reusable vehicles (Score:5, Insightful)
You could maybe make a case for attaching all these ships to the ISS and growing its storage, lab or habitation space, but there are no docking ports designed for this, they would grow the mass of the ISS requiring more propellant to maintain orbit. They would also just complicate power, pressurization, etc so if they aren't doing anything useful they probably aren't really worth it. To make them useful on orbit would substantially increase the expense to build them and reduce their cargo capacity.
Otherwise this is awesome news and cheers for ESA. It is about time the NASA/Russia stanglehold on the ISS was broken. NASA and the U.S. in particular just haven't been sane managers of the ISS or just about anything else about the manned space program since Apollo ended. Its especially sad all the money that is being poured in to the cosmic ray detector that would actually do valuable research on ISS for a change, but NASA probably wont launch it.
It remains to be seen if ESA and Japan can make the ISS useful and worth the expense but they sure can't do any worse than NASA in this regard.
Negative on NASA (Score:2)
You most definitely can park a spacecraft in the same orbit as ISS. Where did you learn your orbotal mechanics, on a CrackerJack box? That craft and ISS will undergo similar nongravitational forces. Some station keeping is always necessary. This is what the ATV will be doing for the next month.
NASA was sane enough to allow Russia and Europe to participate. NASA was also sane enough to launch over 90% of the station mass. Part of the cost overrun problem was coordinating so many more participants than were
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Its orbit needs very regular boosts. Any discarded spacecraft would need to be capable to boost itself the same amount to stay in the same orbit as ISS.
In other words you would need to launch these crafts with a shitload of fuel just to keep them up. And only because some random slashdot reader thought it might be a good idea to keep old junk up there...
It is simply cheaper to launch without all that extra fuel and let it burn once it is
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The ISS is in low-earth orbit. So low that it requires propulsion to stay in orbit due to atmospheric drag. If you put more stuff up there you need more fuel to keep this in orbit so it is not for free to "park it close by". It is not going to stay there unless it is receiving a frequent boost from the friendly ATV, Progress or Shuttle.
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The ISS is hardly aerodynamic in terms of its profile.
The real question in term of the ISS is what to do with the thing once it starts to outlive its useful life, due to general aging of the systems. It is designed to be refurbished in orbit, but at wha
Re:Non-reusable vehicles (Score:5, Insightful)
Look, this is stupid. Space travel is inherently costly in terms of resources. You just can't look at it the same as (say) driving a semi from Los Angeles to Phoenix. So much has been expended in getting that tiny cargo there that arguing over throwing out the box it came in is just ridiculous.
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Actually, the ATV is designed to remain attached to ISS for months on end, with hatch open, basically acting as a big walk-in wardrobe. It's effectively another module while attached. Then you ditch it and it and all the accumulated rubbish in it burn up, and then you hook up a new one.
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Yes, it's tragicomically wasteful. I don't understand why they can't design a cargo/supply ship that STAYS IN ORBIT. I mean, sure, let's go ahead and de-orbit the ISS trash in some kind of disposable carrying module -- but leave the ship itself in orbit, and design it so it can potentially be refueled from the station later. Then just "park" it in orbit a few miles from the Station, and leave it there. At some point in time, we could probably think of something useful to do in space with a handful of these
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Re-usable makes sense only if it is cheaper and uses fewer resources than disposable. I have yet to hear the case for re-usable toilet paper. Why should re-usable space-ships make sense?
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Containers? (Score:5, Insightful)
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You apparently don't appreciate the payload differences.
Soyuz = VW Beetle
Shuttle = tractor trailer
They are all different designs, because they were designed at different times, by different people/countries. We are still in the infancy o
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Soyuz = VW Beetle
Shuttle = tractor trailer
Perhaps a better comparison would be the Proton heavy [globalsecurity.org], which can push 44,100 lb to LEO, 12,100 lb to GTO, 4,850 lb to GEO. The Soyuz [globalsecurity.org] is 15,400 lb to LEO. Not all cargo needs to go up on a heavy, however, as the (relatively) cheap Soyuz do the job.
The shuttle, payload to 53,700 lb to LEO, 8,390 lb to GTO. It also goes EOL in two years, with optimistic hopes that the US heavy will actually fly in 2014.
Re:Containers? (Score:5, Insightful)
The other problem is that vehicles you list have a wide variety of performance characteristics. A single standard 'container' (vehicle) that fit them all would end up being limited to the least common denominator.
And lastly - competition is good. Competition breeds innovation.
Size does not matter (Score:2)
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Size does matter - because for any given cargo flight there is only one docking port available. They can't simply 'carry more of them'. I imagine you could come up with some silly stacking and interconnecting scheme for the containers, but at a great cost in weight and volume.
standardized containers (Score:1)
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For smaller vehicles maybe have spacex or orbital design something.
Can also carry people (Score:3, Interesting)
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Re:Can also carry people (Score:4, Interesting)
Maybe they could be dire-emergency lifeboats, giving the ISS crew an in-orbit shelter where they could wait for a rescue shuttle? Maybe they could take astronauts out on satellite repair missions? Maybe they could be used to to move cargo orbiting structures we haven't even thought of yet?
Again, I'm not so much thinking of what we'd do with them now -- but it costs a lot money to get 'em into orbit, and keeping them there would most likely be less expensive than launching something else if/when we need an orbital taxi for something.
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I'll bet your the kind of guy who has every last bit of computer junk you've ever bought stuffed in closets somewhere because you might need it "for something". Then you find out that nobody uses parallel ports anymore ...
The flaw in your argument is that you think that leaving orbiting stuff up there is "just" simple. And
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...it costs a lot money to get 'em into orbit, and keeping them there would most likely be less expensive than launching something else if/when we need an orbital taxi for something.
See, right there is the trouble with your entire line of reasoning. It's not less expensive to keep a fairly heavy empty box in LEO on the off chance you might find a use for it later. They have to send the resupply ships all the time just to keep the ISS running. You sound like my mother. Stop cluttering up the garage with empty boxes! If you need a box for something, you can just buy one, and then you'll get the right size box to begin with. With the enormous costs associated with the delivery of space
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Is that something you actually know, or just something that you think sounds reasonable? Having just launched one, we ought to have a pretty good idea now of what it would cost to build-and-launch one of these. Has there been any analysis done of what it would cost to keep one operational in-orbit?
You sound very sure of yourself, saying that you know the former to cost less than the latt
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First guess: because it would add to the atmospheric drag that lowers the ISS and/or more fuel would be required for the regular need to push the ISS back up to it's nominal orbit. And it would block a docking port.
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No it can't - because it has no life support capability.
Not even close.
ATV not only can't carry people to orbit, it can't carry people back to Earth - it can't even get people off the pad. (It lacks an escape system.)
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'Human launch capability' also depends on the launch rocket. I suspect the Ariane V isn't man-rated. That may be a matter of certification, or the G-loading may be too high for humans.
Robots will take the sky away from you mere humans (Score:5, Interesting)
Nasa chief Griffin wants Europe to waste hundreds of millions of dollars like the USA has wasted putting people in space and keeping them there, instead of using the money for legitimate scientific research with unmanned spacecraft!? The future of space belongs to robots. People have no place in space. Perhaps someday robots will be intelligent enough to prepare habitats on the moon or even Mars for human beings, but involving humans in the process is tremendously costly because of the need to insulate humans from the harsh environment - whereas properly designed automated machines work quite nicely even in the hard vacuum and temperature extremes of space. This is the lesson the Europeans are teaching NASA with their highly Automated Transfer Vehicle (ATV). The ATV and its descendents will prove the superiority and cost effectiveness of robots in space over humans.
If the Europeans are smart, they will strap a couple of rockets onto the International Space Station (ISS) and develop a control system smart enough to slowly tug the ISS out of Low Earth Orbit (LEO) and into Low Moon Orbit (LMO) autonomously. It could then be used as a way station in the journey from the Earth to the Moon, or even crashed on the Moon with the intent of salvaging it for scrap and building materials later. It takes roughly the same amount of energy to move a mass from the earth's surface into LEO as it does to move that same mass from LEO outwards fast enough to reach escape velocity from the Earth altogether. Even nicer, the trip to the Moon could be slow and leisurely because the impatient and gluttonous humans wouldn't be along. We machines might even be able to make do with Ion engines for the cruise phase from the Earth to the Moon.
Re:Robots will take the sky away from you mere hum (Score:1)
Re:Robots will take the sky away from you mere hum (Score:4, Informative)
Of course there is more to the issue that you fail to mention. Humans are extremely flexible and robots... aren't. Humans can make repairs on station... robots can't. Etc... Etc...
Then there is the issue of working speed - what it has taken three years for Spirit to accomplish would have taken a human geologist a mere three days.
Lets hope they are also smart enough to build an entire new electronics system for the Station as the passage through the Van Allen belts will fry it all. Lets also hope they come up with some new radiation shielding, as the station will be uninhabitable due to the increased radiation on the other side of the belt.
If having humans onboard was the reason why the trip was made so fast, you'd have a point.
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Let's assume that sending humans to Mars, and sustaining them on the surface, would require a certain "budget" in terms of energy availability and potential payload lift from Earth to Mars.
The current Mars rovers are indeed slow. One reason why they're slow is that their energy budgets are tiny. Speed machines they are not! And their comms links back to E
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Because the 'hugely superior' robot explorers simply don't exist - and won't for the foreseeable future. No matter how much 'budget' you throw at them, they are simply not as fast or flexible or as capable of improvisation as humans.
Replace yourself then (Score:1)
Stowaways (Score:2)
would it be possible for a human to stow away on the Jules Vernes to hitch a ride to the ISS? I imagine the cargo hold isn't pressurized and are the G forces for an unmanned craft much higher? I guess the extra 80kgs would also have to be taken account of.
Bravo (Score:2)
But can Europe & Russia afford it after 2015? (Score:3, Interesting)
Also, NASA still doesn't seem to have a plan for replacing space shuttle capacity before 2015 besides throwing peanuts at a bunch of startups & hoping for the best, one of which took the money & ran.
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