ACS on HST broken?

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

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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"Phineas T Puddleduck" wrote in
message news:250620061842157719%phineaspuddleduck@googlema il.com_NOSPAM...
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..

--
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?
"Bull**** repeated to the limit of infinity asymptotically approaches
the odour of roses."

In article , Starlord
wrote:

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 ;-)

--
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?
"Bull**** repeated to the limit of infinity asymptotically approaches
the odour of roses."

Phineas T Puddleduck wrote in
news:250620061944582896%phineaspuddleduck@googlema il.com_NOSPAM:

In article , Starlord
wrote:

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.

Phineas T Puddleduck wrote:
In article , Starlord
wrote:

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

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.


--
The Lone Sidewalk Astronomer of Rosamond

Telescope Buyers FAQ
http://home.inreach.com/starlord
Sidewalk Astronomy
www.sidewalkastronomy.info
Astronomy Net Online Gift Shop
http://www.cafepress.com/astronomy_net
In Garden Online Gift Shop
http://www.cafepress.com/ingarden
Blast Off Online Gift Shop
http://www.cafepress.com/starlords
Astro Blog
http://starlord.bloggerteam.com/




"Randy Poe" wrote in message
ups.com...

Phineas T Puddleduck wrote:
In article , Starlord
wrote:

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

Randy Poe wrote:
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?

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/d...ry/001388.html

-- Ben

Ben Rudiak-Gould wrote:
Randy Poe wrote:
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?

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/d...ry/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

Phineas T Puddleduck wrote in
news:250620061842157719%phineaspuddleduck@googlema il.com_NOSPAM:

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..


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.

lanzlan Klazmon wrote:

Phineas T Puddleduck wrote in
news:250620061842157719%phineaspuddleduck@googlem ail.com_NOSPAM:

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..


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.

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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