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Spirit is Fixed!



 
 
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  #1  
Old January 30th 04, 08:16 PM
John Schutkeker
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Default Spirit is Fixed!


Today on NPR's Science Friday, NASA's representative said that Spirit is
nearly back to 100%, and that it will resume doing science and transmitting
pictures this weekend. No word yet on the specifics of the problem that
took her down for so long.
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  #2  
Old January 31st 04, 12:52 AM
Marilee J. Layman
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Default Spirit is Fixed!

On Fri, 30 Jan 2004 19:16:37 GMT, John Schutkeker
wrote:


Today on NPR's Science Friday, NASA's representative said that Spirit is
nearly back to 100%, and that it will resume doing science and transmitting
pictures this weekend. No word yet on the specifics of the problem that
took her down for so long.


Well, of course. Spirit has been "fixed" since she was six months
old. She would *really* like to know why the TV keeps saying her
name.

--
Marilee J. Layman
  #3  
Old February 3rd 04, 06:04 AM
Eric Chomko
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Default Spirit is Fixed!

John Schutkeker ) wrote:

: Today on NPR's Science Friday, NASA's representative said that Spirit is
: nearly back to 100%, and that it will resume doing science and transmitting
: pictures this weekend. No word yet on the specifics of the problem that
: took her down for so long.


Yaaaaaaa ------ hoooooooooooo!!!!!!!!!!!!!!

Damn software people!

Eric
  #8  
Old February 4th 04, 08:37 AM
Gary W. Swearingen
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Default Spirit is Fixed!

Brett O'Callaghan writes:

As a "software person" (;-), I will say I'm "surprised" this issue
didn't come up in testing.


As in faster-than-real-time simulation of the whole mission --
many months in space and many months on Mars, presumably.

But from what little they've said of their problem, I will say I'm
surprised this issue didn't come up in analysis and/or that they
didn't keep track of the RAM usage as they caused flash files to be
created. I'd think they'd know how much RAM each flash file needs
(maybe depending upon file size), etc... They probably trusted the
sorta-off-the-shelf software too much without understanding it enough.

But maybe they did all that and it still went bad. I infer from the
brief briefings that they still don't understand why the flash files
needed as much RAM as it seemed to need. The problem might have only
been seen or tested for in some very special and poorly-understood and
hard-to-simulate conditions. Complex software is like that and it's
practically impossible to know how much money and time to spend on
understanding and testing the software, even if one has any choice.
  #9  
Old February 4th 04, 08:37 AM
Gary W. Swearingen
external usenet poster
 
Posts: n/a
Default Spirit is Fixed!

Brett O'Callaghan writes:

As a "software person" (;-), I will say I'm "surprised" this issue
didn't come up in testing.


As in faster-than-real-time simulation of the whole mission --
many months in space and many months on Mars, presumably.

But from what little they've said of their problem, I will say I'm
surprised this issue didn't come up in analysis and/or that they
didn't keep track of the RAM usage as they caused flash files to be
created. I'd think they'd know how much RAM each flash file needs
(maybe depending upon file size), etc... They probably trusted the
sorta-off-the-shelf software too much without understanding it enough.

But maybe they did all that and it still went bad. I infer from the
brief briefings that they still don't understand why the flash files
needed as much RAM as it seemed to need. The problem might have only
been seen or tested for in some very special and poorly-understood and
hard-to-simulate conditions. Complex software is like that and it's
practically impossible to know how much money and time to spend on
understanding and testing the software, even if one has any choice.
 




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