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ACS on HST broken?

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Phineas T Puddleduck - 25 Jun 2006 18:42 GMT
http://abcnews.go.com/Technology/wireStory?id=2115075

"BALTIMORE Jun 24, 2006 (AP)‹ The main camera on the Hubble Space
Telescope, which has revolutionized astronomy with its stunning
pictures of the universe, has stopped working, an instrument specialist
who works with the camera said Saturday.

The Advanced Camera for Surveys, a third-generation instrument
installed by a space shuttle crew in 2002, went off line Monday, and
engineers are still trying to figure out what happened and how to
repair it.

"It's still off line today," Max Mutchler, an instruments specialist at
the Space Telescope Science Institute in Baltimore, said Saturday. "

Going to be a nasty blow to the HST with that offline - some of its
pictures have been pretty useful..

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Starlord - 25 Jun 2006 19:32 GMT
It's in Safe Mode, they might find a way to work around whatever caused it
to go into Safe Mode.

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> http://abcnews.go.com/Technology/wireStory?id=2115075
>
[quoted text clipped - 13 lines]
> Going to be a nasty blow to the HST with that offline - some of its
> pictures have been pretty useful..
Phineas T Puddleduck - 25 Jun 2006 19:44 GMT
> It's in Safe Mode, they might find a way to work around whatever caused it
> to go into Safe Mode.

Its a worry for certain. It may not be quite so easy from earth to
ctrl-alt-del ;-)

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The greatest enemy of science is pseudoscience.

Jaffa cakes. Sweet delicious orangey jaffa goodness, and an abject lesson why
parroting information from the web will not teach you cosmology.

Official emperor of sci.physics, head mumbler of the "Cult of INSANE SCIENCE".
Please pay no attention to my butt poking forward, it is expanding.

Relf's Law?
"Bullshit repeated to the limit of infinity asymptotically approaches
the odour of roses."

Llanzlan Klazmon - 26 Jun 2006 02:45 GMT
>> It's in Safe Mode, they might find a way to work around whatever caused
>> it to go into Safe Mode.
>
> Its a worry for certain. It may not be quite so easy from earth to
> ctrl-alt-del ;-)

They talk about cutting over to the backup circuitry but I gather they want
to do some tests to determine the actual cause before attempting that.

Klazmon.
Randy Poe - 26 Jun 2006 23:03 GMT
> > It's in Safe Mode, they might find a way to work around whatever caused it
> > to go into Safe Mode.
>
> Its a worry for certain. It may not be quite so easy from earth to
> ctrl-alt-del ;-)

Speaking of which, someday I'd love to find out what heroic
feats of engineering got the Mars Rover rebooted when it
crashed early in its mission. When I heard about the failure,
and then about the recovery, I thought "there's a heckuva
story there somewhere".

Anybody ever heard details?

                   - Randy
Starlord - 27 Jun 2006 01:22 GMT
They turned off the flash memory and uploaded a patch to the rover that
allowed it to send the flash memory without haveing to reboot, once
installed they flushed the flash and had it reboot.

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>> > It's in Safe Mode, they might find a way to work around whatever caused
>> > it
[quoted text clipped - 12 lines]
>
>                    - Randy
Ben Rudiak-Gould - 27 Jun 2006 22:04 GMT
> Speaking of which, someday I'd love to find out what heroic
> feats of engineering got the Mars Rover rebooted when it
[quoted text clipped - 3 lines]
>
> Anybody ever heard details?

Here are some technical details about the Pathfinder bug:

  http://catless.ncl.ac.uk/Risks/19.49.html#subj1

and the Spirit bug:

  http://mailman.dtnrg.org/pipermail/dtn-interest/2004-February/001388.html

-- Ben
Randy Poe - 29 Jun 2006 17:31 GMT
> > Speaking of which, someday I'd love to find out what heroic
> > feats of engineering got the Mars Rover rebooted when it
[quoted text clipped - 11 lines]
>
>    http://mailman.dtnrg.org/pipermail/dtn-interest/2004-February/001388.html

EXACTLY what I meant when I said "heroic feats of engineering"
and the story I hoped to hear someday. Thank you for this.

I love the epilogue of the first one:

"David also said that some of the real heroes of the situation were
some
people from CMU who had published a paper he'd heard presented many
years
ago who first identified the priority inversion problem and proposed
the
solution.  He apologized for not remembering the precise details of the
paper or who wrote it.  Bringing things full circle, it turns out that
the
three authors of this result were all in the room, and at the end of
the
talk were encouraged by the program chair to stand and be acknowledged.
They were Lui Sha, John Lehoczky, and Raj Rajkumar.  When was the last
time
you saw a room of people cheer a group of computer science theorists
for
their significant practical contribution to advancing human knowledge?
:-)
It was quite a moment."

                  - Randy
Llanzlan Klazmon - 26 Jun 2006 00:24 GMT
> http://abcnews.go.com/Technology/wireStory?id=2115075
>
[quoted text clipped - 13 lines]
> Going to be a nasty blow to the HST with that offline - some of its
> pictures have been pretty useful..

http://www.stsci.edu/hst/ACSSuspends

Looks to be some sort of power supply problem. Hopefully they will be able
to sort it out.

Klazmon.
Art Deco - 26 Jun 2006 01:35 GMT
lanzlan Klazmon <Klazmon@llurdiaxorb.govt> wrote:

>> http://abcnews.go.com/Technology/wireStory?id=2115075
>>
[quoted text clipped - 20 lines]
>
>Klazmon.

How long will it be until the first kook starts claiming it is a NASA
conspiracy to hide some profound truth?

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Phineas T Puddleduck - 26 Jun 2006 02:15 GMT
> How long will it be until the first kook starts claiming it is a NASA
> conspiracy to hide some profound truth?

Less then a day ;)

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The greatest enemy of science is pseudoscience.

Jaffa cakes. Sweet delicious orangey jaffa goodness, and an abject lesson why
parroting information from the web will not teach you cosmology.

Official emperor of sci.physics, head mumbler of the "Cult of INSANE SCIENCE".
Please pay no attention to my butt poking forward, it is expanding.

Relf's Law?
"Bullshit repeated to the limit of infinity asymptotically approaches
the odour of roses."

Skywise - 26 Jun 2006 22:57 GMT
> Less then a day

Give that man a cigar! Over on a web forum I peruse I found the
following:

  "they" do not want us to see (what's coming or what it
   is).....for "overjoyed" or "freaked out" may occur???......
   causing imbalance within the public venue.

Brian
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Phineas T Puddleduck - 26 Jun 2006 23:40 GMT
> > Less then a day
>
[quoted text clipped - 6 lines]
>
> Brian

But its one award I wish I didn't win ;-)

Signature

The greatest enemy of science is pseudoscience.

Jaffa cakes. Sweet delicious orangey jaffa goodness, and an abject lesson why
parroting information from the web will not teach you cosmology.

Official emperor of sci.physics, head mumbler of the "Cult of INSANE SCIENCE".
Please pay no attention to my butt poking forward, it is expanding.

Relf's Law?
"Bullshit repeated to the limit of infinity asymptotically approaches
the odour of roses."

Skywise - 27 Jun 2006 03:25 GMT
>> > Less then a day
>>
[quoted text clipped - 8 lines]
>
> But its one award I wish I didn't win ;-)

I hear ya. Some of these folks are "true believers".

Brian
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Seismic FAQ: http://www.skywise711.com/SeismicFAQ/SeismicFAQ.html
Quake "predictions": http://www.skywise711.com/quakes/EQDB/index.html
Sed quis custodiet ipsos Custodes?

Art Deco - 27 Jun 2006 03:57 GMT
>> > Less then a day
>>
[quoted text clipped - 8 lines]
>
>But its one award I wish I didn't win ;-)

Congratulations, I think.

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COOSN-266-06-39716
Official Associate AFA-B Vote Rustler
Official Overseer of Kooks and Saucerheads in alt.astronomy
Co-Winner, alt.(f)lame Worst Flame War, December 2005
Official "Usenet psychopath and born-again LLPOF minion",
 as designated by Brad Guth

"And without accurate measuring techniques, how can they even
*call* quantum theory a "scientific" one? How can it possibly
be referred to as a "fundamental branch of physics"?"
 -- Painsnuh the Lamer

"Well, orientals moved to the U.S. and did amazingly well on
their own, and the races are related (brown)."
 -- "Honest" John pontificates on racial purity

"Significant new ideas have rarely come from the ranks of
the establishment."
 -- Double-A on technology development

Saul Levy - 28 Jun 2006 06:15 GMT
The aliens are already here according to nightbat (aka frootie) in
alt.astronomy.

Saul Levy

>> Less then a day
>
[quoted text clipped - 6 lines]
>
>Brian
 
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