Ulysses Spacecraft Not Dead Yet

iminplaya sends in the good news that reports of the death of the Ulysses mission are premature. (We've discussed the impending shutdown of the 17-year-old mission a couple of times this year.) Ulysses is a joint NASA / ESA mission to study the sun from an orbit inclined almost 90 degrees from the ecliptic. From the Planetary Society blog post: "Ulysses is not dead yet. ESA issued a statement in February saying that, as Ulysses' radioisotope thermoelectric generators were running out of power, the spacecraft would likely die some time this year. The actual death blow to the spacecraft was likely to be the freezing of hydrazine fuel in a cold spot in a fuel line. Mission controllers found creative ways to prevent the freezing, but the solution was not a long-term one, and ESA had a ceremonial send-off and wrap-up of the mission in mid-June, announcing that the spacecraft would be shut down on July 1. However, it now appears that announcement was premature. ESA issued a statement on July 3 titled 'Ulysses hanging on valiantly.' And on Wednesday, the [Ulysses mission operations manager indicated] that Ulysses' voyage could actually continue for some time."

Comments

Of Course Ulysses' Not Dead!

[morari]

It'll probably return after twenty years or so, Poseidon be damned!

Re:Of Course Ulysses' Not Dead!

[Anonymous Coward]

An appropriate poem for a dieing spacecraft.

Come, my friends,
'T is not too late to seek a newer world.
Push off, and sitting well in order smite
The sounding furrows; for my purpose holds
To sail beyond the sunset, and the baths
Of all the western stars, until I die.
It may be that the gulfs will wash us down:
It may be we shall touch the Happy Isles,
And see the great Achilles, whom we knew.
Tho' much is taken, much abides; and tho'
We are not now that strength which in old days
Moved earth and heaven, that which we are, we are;
One equal temper of heroic hearts,
Made weak by time and fate, but strong in will
To strive, to seek, to find, and not to yield.

today's NASA kids could learn from this.

[timmarhy]

You don't need billion dollar budget programs to achieve amazing science, low cost well thought out missions can do great things. maybe it's the thinking part that has them stumped.

Re:today's NASA kids could learn from this.

[Anonymous Coward]

Well there's a tagline: "Lack of funding, kills stuff faster then outer space". I reckon the military might even pay to turn that into a weapon.

Re:today's NASA kids could learn from this.

[timmarhy]

that's 1.5 billion OVER 17 YEARS.

that's bargin basement space exploration. it's the perfect example, thank you very much.

Re:today's NASA kids could learn from this.

[JoeRobe]

a) Ulysses has cost over a billion.

b) NASA has had spacecraft which have lasted longer than anyone thought they would. The current Mars rovers for example, and Mars Pathfinder, as well as the Galileo spacecraft, which had at least 4 extended missions. Not to mention the Voyagers. The correlation between cost and the lifetime of the craft is not coincidental.

c) Having a mission that lasts a long time is not indicative of a well thought out mission. I think if any agency is going to blow 1 billion on a mission, they're going to think it out pretty damn well. Imagine the public backlash if it weren't thought out (i.e. Mars Polar Lander)...

Re:End idea

[sjames]

If it had enough left for that sort of maneuver, it wouldn't be in trouble. Of course, it never had enough fuel to do that. It had just enough to reach a Juipiter fly-by in order to get into a near polar orbit of the Sun.

Re:Of course it's not dead ...

[$RANDOMLUSER]

I'll tell you what's wrong with it, my lad. 'E's dead, that's what's wrong with it!
No, no, 'e's uh,...he's resting.
Look, matey, I know a dead spacecraft when I see one, and I'm looking at one right now.
No no he's not dead, he's, he's restin'! Remarkable ship, the Ulysses, idn'it, ay? Beautiful solar collectors!
The solar collectors don't enter into it. It's stone dead.
Nononono, no, no! 'E's resting!
All right then, if he's restin', I'll wake him up! (shouting at the cage) 'Ello, Mister Ulysses! I've got a lovely fresh battery for you if you show...(owner hits the retros)
There, he moved!
No, he didn't, that was you hitting the retros!
I never!!
Yes, you did!
I never, never did anything...
(yelling) 'ELLO ULYSSES!!!!! Testing! Testing! Testing! Testing! This is your nine o'clock alarm call!

Thank you

[gerf]

Thank you for telling people their idea is stupid. Sometimes they need it, the uneducated louts.

Now, I think NASA is overlooking a completely obvious and fooldproof solution. Problem: they have frozen pipes. They're also near the Sun. A quick flyby of the sun for some warmth, and they're good to go! However, if I remember my science classes correctly, they have to keep the pass under a certain speed, or they run into problems with humpback whales.

Ejection from the solar system?

[Phil Karn]

The blog article at the Planetary Society website says that Ulysses will encounter Jupiter and be ejected from the solar system. Is this a theoretical possibility, or has a date for this been determined? Ulysses originally encountered Jupiter to fling it out of the ecliptic plane so it could study the sun at high latitudes. Its aphelion is still at Jupiter's orbit. If it encounters Jupiter again, any number of things could happen to it. The statement about it being ejected seems to imply that a specific encounter trajectory is already predicted.