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(Scientific American)   Sticky flywheel delays search for hot green chicks   (blogs.scientificamerican.com) divider line 29
    More: Interesting, Science Mission Directorate, Ames Research Center, safe mode, telescopes, Milky Way, spacecrafts, NASA, planets  
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2109 clicks; posted to Geek » on 15 May 2013 at 9:09 PM (1 year ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



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2013-05-15 09:14:55 PM
www.fitnessblackbook.com
 
2013-05-15 09:30:01 PM
I really wonder what the engineers can do to unstick this flywheel from 40 million miles away.  Apparently something because the statement seems pretty upbeat.
 
2013-05-15 09:40:24 PM
Now that was a sticky situation!
 
2013-05-15 09:44:54 PM
Reaction-wheel assemblies suck.
 
2013-05-15 10:05:04 PM

wax_on: I really wonder what the engineers can do to unstick this flywheel from 40 million miles away.  Apparently something because the statement seems pretty upbeat.


The power of prayer?
 
2013-05-15 11:04:39 PM
people.csail.mit.edu

Mr. Sobeck just told me to come in here and say that there was trouble at the mill, that's all.
 
2013-05-15 11:11:29 PM
cps-static.rovicorp.com

/unavailable for comment
 
2013-05-15 11:23:54 PM
News like this makes me worried about JWST.
 
2013-05-15 11:35:33 PM

wax_on: I really wonder what the engineers can do to unstick this flywheel from 40 million miles away.  Apparently something because the statement seems pretty upbeat.


The statement I heard was  "Less then 50-50"

/He's dead Jim.
 
2013-05-15 11:36:11 PM
Also, All they can probably do is turn it off and back on again.
 
2013-05-15 11:47:12 PM
We should send the 42nd 3D Printer Space Patrol up there and fix 'er up !!
 
2013-05-16 12:14:54 AM
A dead reaction wheel is not necessarily a deal-breaker.  There may be certain maneuvers they can do with the thrusters in conjuctions with the remaining reaction wheels to minimize the error on the bad axis.

wax_on: I really wonder what the engineers can do to unstick this flywheel from 40 million miles away.  Apparently something because the statement seems pretty upbeat.


They can do things like pulse the motors at different frequencies to try to excite harmonics which can shake the thing up.
 
2013-05-16 12:17:08 AM

aerojockey: A dead reaction wheel is not necessarily a deal-breaker.  There may be certain maneuvers they can do with the thrusters in conjuctions with the remaining reaction wheels to minimize the error on the bad axis.


Nope. It was sent up with 4. One died, and that was the only one they could afford to lose.

Now that they are losing a second, it's game over.

/They tried to unstick the first one that failed by stopping it and letting the lubricant "spread out"
//didn't work.
 
2013-05-16 12:18:22 AM

Quantum Apostrophe: We should send the 42nd 3D Printer Space Patrol up there and fix 'er up !!


F*ck you and your constant thread shiatting on any space topic. I despise every thing about you and what you represent. It would make my day a bright one indeed if heard I you were on your way to a life extension fantasy seminar and got run over by a tanker truck full of Tang.

/and 3d printed dice hanging from the mirror.
 
2013-05-16 12:19:37 AM

fluffy2097: Also, All they can probably do is turn it off and back on again.


When in doubt, reboot.
 
2013-05-16 12:20:00 AM
Is it just me or does the "artist's conception" of kepler look like somebody cut out some stock photos of foil and plastic wrap, arranged it into a satellite shape, then drew a few boxes on top for good measure?
 
2013-05-16 12:23:14 AM
Argh. Good luck ya boffins
 
2013-05-16 12:25:34 AM
Question for Correction: How far is it from Earth to the Kepler telescope?

I thought Kepler was in a heliocentric orbit (approx 150M kilometers from Sun), following Earth in its orbit, and trailing Earth by roughly 4,000 kilometers. Despite searching, I cannot confirm whether this information is correct or not. Most sites seem to report that Kepler is 150M kilometers from  Earth, not the Sun. The Kepler website seems to be down, or at least I can't get into it.

Anybody have accurate information as to accurate Kepler distance from Sun and from Earth?

/confused
 
2013-05-16 12:36:26 AM

fluffy2097: aerojockey: A dead reaction wheel is not necessarily a deal-breaker.  There may be certain maneuvers they can do with the thrusters in conjuctions with the remaining reaction wheels to minimize the error on the bad axis.

Nope. It was sent up with 4. One died, and that was the only one they could afford to lose.

Now that they are losing a second, it's game over.

/They tried to unstick the first one that failed by stopping it and letting the lubricant "spread out"
//didn't work.


It still has three-axis thrusters.  It can control its attitude in any direction still, just not very precisely outside the plane of the two remaining reaction wheels.  However, certain ways of maneuvering tend to minimize the effects of errors in some directions, and that might be enough to let it still squeeze out a little more useful science.
 
2013-05-16 12:42:38 AM

pappy1398: Quantum Apostrophe: We should send the 42nd 3D Printer Space Patrol up there and fix 'er up !!

F*ck you and your constant thread shiatting on any space topic. I despise every thing about you and what you represent. It would make my day a bright one indeed if heard I you were on your way to a life extension fantasy seminar and got run over by a tanker truck full of Tang.

/and 3d printed dice hanging from the mirror.


It never ceases to amaze me the emotional reactions some people have over pictures and hype. Get help.

You probably think NASA invented computers or some such version of the religion.
 
2013-05-16 12:49:48 AM
THANKS; OBAMA!
 
2013-05-16 01:00:11 AM

Quantum Apostrophe: pappy1398: Quantum Apostrophe: We should send the 42nd 3D Printer Space Patrol up there and fix 'er up !!

F*ck you and your constant thread shiatting on any space topic. I despise every thing about you and what you represent. It would make my day a bright one indeed if heard I you were on your way to a life extension fantasy seminar and got run over by a tanker truck full of Tang.

/and 3d printed dice hanging from the mirror.

It never ceases to amaze me the emotional reactions some people have over pictures and hype. Get help.

You probably think NASA invented computers or some such version of the religion.


Your missing my point. I'm not pro-space. I'm anti-you.
 
2013-05-16 01:06:12 AM

pappy1398: Your missing my point. I'm not pro-space. I'm anti-you.


It's a lost cause, man. Either put him on ignore or troll him back so he ignores you.
 
2013-05-16 01:55:18 AM
I've been wondering what else they might be able to do with the hardware if they lose the reaction wheel for sure. There must be *something* else they can do with an orbital optics package like that, even if it can't hold the image as steady as before.
 
2013-05-16 02:49:18 PM

aerojockey: It still has three-axis thrusters. It can control its attitude in any direction still, just not very precisely outside the plane of the two remaining reaction wheels. However, certain ways of maneuvering tend to minimize the effects of errors in some directions, and that might be enough to let it still squeeze out a little more useful science.


Yeah dude. I'm sure the people that built the thing that say it will be useless without 3 reaction wheels totally don't know what they're talking about, and it probably doesn't need ANY reaction wheels to do it's job. It's just a way of stealing money from fartbongo.

Jesus Christ you're stupid for being smart.
 
2013-05-16 02:49:54 PM

amindofiron: I've been wondering what else they might be able to do with the hardware if they lose the reaction wheel for sure. There must be *something* else they can do with an orbital optics package like that, even if it can't hold the image as steady as before.


It makes a very good piece of orbital debris.
 
2013-05-16 05:59:43 PM

fluffy2097: aerojockey: It still has three-axis thrusters. It can control its attitude in any direction still, just not very precisely outside the plane of the two remaining reaction wheels. However, certain ways of maneuvering tend to minimize the effects of errors in some directions, and that might be enough to let it still squeeze out a little more useful science.

Yeah dude. I'm sure the people that built the thing that say it will be useless without 3 reaction wheels totally don't know what they're talking about, and it probably doesn't need ANY reaction wheels to do it's job. It's just a way of stealing money from fartbongo.

Jesus Christ you're stupid for being smart.


Wow are you a prick.
 
2013-05-16 08:22:31 PM
aerojockey:Wow are you a prick.

I know right? It's a good thing I'm right or I'd feel real foolish at some point.
 
2013-05-17 04:29:44 AM

AliceBToklasLives: [www.fitnessblackbook.com image 426x282]


Crappy small picture.

t2.gstatic.com
And...
3.bp.blogspot.com
 
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