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Spirit Condition Upgraded as Twin Rover Nears Mars



 
 
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  #1  
Old January 25th 04, 07:58 PM
Dosco Jones
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Default You guys are great engineers.


"Jason Clayton" wrote in message
om...
So the method they used is 3/3, I say we land everything on Mars that way.
Forget those totally rocket controlled descents, this bouncing ball method
is proven. I can't wait until we start bring some samples back and maybe
doing some seismic stuff.

Jason



That'd not a valid line of thought. Air bags appear work very well for
landing zones that are flat and relatively clear of pointy things. If you
want to land in a place with more interesting topography, bags may not be
the best answer.



  #2  
Old January 26th 04, 12:24 AM
Jason Clayton
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Default You guys are great engineers.

I guess it would be a problem in a canyon, although if we are able to bring
the costs down to where we can send numerous rovers, then we could risk
having the rover land in a canyon with a relatively wide valley floor.

Another thing, I have seen some incredibly high resolution sat. images and I
am sure the CIA folks have even better stuff. Why don't we have that kind
of resolution from our orbiting spacecraft there? I know we spend enough
money on them to have the best stuff.

"Dosco Jones" wrote in message
link.net...

"Jason Clayton" wrote in message
om...
So the method they used is 3/3, I say we land everything on Mars that

way.
Forget those totally rocket controlled descents, this bouncing ball

method
is proven. I can't wait until we start bring some samples back and

maybe
doing some seismic stuff.

Jason



That'd not a valid line of thought. Air bags appear work very well for
landing zones that are flat and relatively clear of pointy things. If you
want to land in a place with more interesting topography, bags may not be
the best answer.






  #3  
Old January 26th 04, 01:16 AM
Dosco Jones
external usenet poster
 
Posts: n/a
Default You guys are great engineers.


"Jason Clayton" wrote in message
news
I guess it would be a problem in a canyon, although if we are able to

bring
the costs down to where we can send numerous rovers, then we could risk
having the rover land in a canyon with a relatively wide valley floor.

Another thing, I have seen some incredibly high resolution sat. images and

I
am sure the CIA folks have even better stuff. Why don't we have that kind
of resolution from our orbiting spacecraft there? I know we spend enough
money on them to have the best stuff.

"Dosco Jones" wrote in message
link.net...

"Jason Clayton" wrote in message
om...
So the method they used is 3/3, I say we land everything on Mars that

way.
Forget those totally rocket controlled descents, this bouncing ball

method
is proven. I can't wait until we start bring some samples back and

maybe
doing some seismic stuff.

Jason



That'd not a valid line of thought. Air bags appear work very well for
landing zones that are flat and relatively clear of pointy things. If

you
want to land in a place with more interesting topography, bags may not

be
the best answer.








  #4  
Old January 26th 04, 01:51 AM
Dosco Jones
external usenet poster
 
Posts: n/a
Default You guys are great engineers.


"Jason Clayton" wrote in message
news
Another thing, I have seen some incredibly high resolution sat. images and

I
am sure the CIA folks have even better stuff. Why don't we have that kind
of resolution from our orbiting spacecraft there? I know we spend enough
money on them to have the best stuff.



One significant limitation is size. One of our best orbital intelligence
assets is the Advanced KH-11 "Crystal" type spysat. It's roughly 50 feet
long by 15 feet in diameter, with a dry weight of ten metric tons. Keyhole
has a primary mirror that is at least 7.5 feet in diameter with a best guess
ground target resolution of 10 to 12 centimeters.

Think of it as a Hubble Space Telescope with a maneuvering rocket stuck on
one end. Getting a package the size of Hubble to Mars isn't something we
can easily do right now.


Dosco


  #5  
Old January 26th 04, 02:23 AM
Chosp
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Posts: n/a
Default You guys are great engineers.


"Jason Clayton" wrote in message
news
Another thing, I have seen some incredibly high resolution sat. images and

I
am sure the CIA folks have even better stuff. Why don't we have that kind
of resolution from our orbiting spacecraft there? I know we spend enough
money on them to have the best stuff.


Spysats tend to be about the size of a school bus. Much too heavy and
large to send to Mars with the launch capablilities and budgets we now
have or will have for such things in the forseeable future.



  #6  
Old January 25th 04, 10:21 AM
Carsten
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Default Thanks US, for taking us all there.

Carsten


  #7  
Old January 25th 04, 06:59 PM
George
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Default Thanks US, for taking us all there.


"Carsten" wrote in message
...
Carsten



We aim to please.


  #8  
Old January 25th 04, 11:55 PM
Coalbunny
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Default Thanks US, for taking us all there.

On Sun, 25 Jan 2004 13:59:48 -0500, "George" carved in
granite...


"Carsten" wrote in message
k...
Carsten



We aim to please.

You aim too, please.
Carl

--
"Volunteer emergency personel are like toilet paper- no one realizes how valuable they are until they're needed." -- Coalbunny


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  #10  
Old January 26th 04, 05:46 AM
don findlay
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Default Thanks US, for taking us all there.

"George" wrote in message . ..
"Carsten" wrote in message
...
Carsten



We aim to please.


Ah, George, George, ...George, ... ' Who ?'
 




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