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Satellite falls on Canada?



 
 
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  #1  
Old September 24th 11, 03:08 PM posted to sci.space.policy
Pat Flannery
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Posts: 18,465
Default Satellite falls on Canada?

Poor Canada, first the Soviet satellite with the reactor on it, now this:
http://www.indianexpress.com/news/na...-earth/851157/

Pat
  #2  
Old September 24th 11, 03:46 PM posted to sci.space.policy
Bob Haller
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Default Satellite falls on Canada?

On Sep 24, 10:08*am, Pat Flannery wrote:
Poor Canada, first the Soviet satellite with the reactor on it, now this:http://www.indianexpress.com/news/na...-up-plunges-ba...

Pat


looks like no one was hurt...... it went down in a sparsley setteled
area.

probably the worst would of been debris hitting a major metropoltian
area anywhere in the world.......

as a single hit item a debris hit to a nuke power plant or waste core
storage pool could of created another fukashima
  #3  
Old September 24th 11, 04:00 PM posted to sci.space.policy
Brian Thorn[_2_]
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Default Satellite falls on Canada?

On Sat, 24 Sep 2011 07:46:07 -0700 (PDT), bob haller
wrote:

Poor Canada, first the Soviet satellite with the reactor on it, now this:http://www.indianexpress.com/news/na...-up-plunges-ba...


looks like no one was hurt...... it went down in a sparsley setteled
area.


I think the breakup may have been a more drawn out process than NASA
expected. I saw a meteor moving in the correct direction and in the
general part of the sky I was searching for UARS from San Angelo,
Texas around 8:20 Central, but no sign of the satellite. At first I
thought it was just a natural meteor, but the more I think about it,
that's a pretty damned big coincidence.

But that's at least one orbit, maybe two, before NASA says UARS came
down.

probably the worst would of been debris hitting a major metropoltian
area anywhere in the world.......


Even then the odds are great it would have just landed on someone's
roof or in a street. Lots of amazed gawkers standing around taking
pictures of it with the cellphones.

as a single hit item a debris hit to a nuke power plant or waste core
storage pool could of created another fukashima


Not really. Remember, it isn't going 17,000mph when it hits the
ground, it's at terminal velocity. Hitting a building isn't any worse
than hitting the ground, and there is lots of space junk (Delta II
parts, Columbia wreckage, tanks from SkyLab) that is still more or
less recognizable after slamming into the ground. A space debris hit
is not going to cause a power plant to go China Syndrome.

Brian

  #4  
Old September 24th 11, 07:26 PM posted to sci.space.policy
Val Kraut
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Posts: 329
Default Satellite falls on Canada?


"Pat Flannery" wrote in message
...
Poor Canada, first the Soviet satellite with the reactor on it, now this:
http://www.indianexpress.com/news/na...-earth/851157/

Pat


Under-populated countries like Australia and Canada seem to have this as
their burden.


  #5  
Old September 25th 11, 02:06 AM posted to sci.space.policy
Brad Guth[_3_]
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Default Satellite falls on Canada?

On Sep 24, 7:08*am, Pat Flannery wrote:
Poor Canada, first the Soviet satellite with the reactor on it, now this:http://www.indianexpress.com/news/na...-up-plunges-ba...

Pat


Space Junk/Debris (mostly of the lethal kind if encountered and any
closing velocity)

The danger of space debris / by Micah Zenko
http://globalpublicsquare.blogs.cnn....-space-debris/
  #6  
Old September 25th 11, 01:03 PM posted to sci.space.policy
Brad Guth[_3_]
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Posts: 15,175
Default Satellite falls on Canada?

On Sep 24, 7:08*am, Pat Flannery wrote:
Poor Canada, first the Soviet satellite with the reactor on it, now this:http://www.indianexpress.com/news/na...-up-plunges-ba...

Pat


Space Junk/Debris (mostly of the lethal kind if encountered at any
closing velocity)

There’s supposedly 1100+ working satellites (plus x-number of secret
ones) and perhaps twice that many dysfunctional or dead, not to
mention those already in bits because of collisions and/or being
intentionally shot at. Actually the official number of dead
satellites can’t be told, nor the true all-inclusive cost of our
having to track everything of 10+ cm (22,000 items and growing).

The danger of space debris / by Micah Zenko
http://globalpublicsquare.blogs.cnn....-space-debris/
“Presently, there are some 22,000 items over ten centimeters across,
or roughly the size of a softball, which can be regularly tracked with
existing resources and technology. These include the upper stages of
launch vehicles, disabled spacecraft, dead batteries, solid rocket
motor waste, and refuse from human missions. In addition, there are
approximately 300,000 other fragments of space junk measuring between
one and ten centimeters, and over 135,000,000 less than one
centimeter, which could potentially damage operational spacecraft.”

http://translate.google.com/#
Brad Guth, Brad_Guth, Brad.Guth, BradGuth, BG / “Guth Usenet”
  #7  
Old September 25th 11, 01:42 PM posted to sci.space.policy
Bob Haller
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Posts: 3,197
Default Satellite falls on Canada?

On Sep 25, 8:03*am, Brad Guth wrote:
On Sep 24, 7:08*am, Pat Flannery wrote:

Poor Canada, first the Soviet satellite with the reactor on it, now this:http://www.indianexpress.com/news/na...-up-plunges-ba...


Pat


Space Junk/Debris (mostly of the lethal kind if encountered at any
closing velocity)

There’s supposedly 1100+ working satellites (plus x-number of secret
ones) and perhaps twice that many dysfunctional or dead, not to
mention those already in bits because of collisions and/or being
intentionally shot at. *Actually the official number of dead
satellites can’t be told, nor the true all-inclusive cost of our
having to track everything of 10+ cm (22,000 items and growing).

The danger of space debris / by Micah Zenko
*http://globalpublicsquare.blogs.cnn....danger-of-spac....
*“Presently, there are some 22,000 items over ten centimeters across,
or roughly the size of a softball, which can be regularly tracked with
existing resources and technology. These include the upper stages of
launch vehicles, disabled spacecraft, dead batteries, solid rocket
motor waste, and refuse from human missions. In addition, there are
approximately 300,000 other fragments of space junk measuring between
one and ten centimeters, and over 135,000,000 less than one
centimeter, which could potentially damage operational spacecraft.”

*http://translate.google.com/#
*Brad Guth, Brad_Guth, Brad.Guth, BradGuth, BG / “Guth Usenet”


Sooner or later a space trash recovery system will have to be put in
operation. hopefully before LEO becomes unusable.....

  #8  
Old September 25th 11, 03:48 PM posted to sci.space.policy
Quadibloc
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Posts: 7,018
Default Satellite falls on Canada?

It turns out the Okotoks report was an error or a hoax, and the debris
came down in the South Pacific, from later news reports (not to be
confused with where it hit the atmosphere, which was also over the
South Pacific).

John Savard
  #9  
Old September 25th 11, 04:44 PM posted to sci.space.policy
Quadibloc
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Posts: 7,018
Default Satellite falls on Canada?

On Sep 25, 8:48*am, Quadibloc wrote:
It turns out the Okotoks report was an error or a hoax, and the debris
came down in the South Pacific, from later news reports (not to be
confused with where it hit the atmosphere, which was also over the
South Pacific).


Here we a

http://www.vancouversun.com/news/the...553/story.html

John Savard
  #10  
Old September 25th 11, 05:54 PM posted to sci.space.policy
Bob Haller
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Posts: 3,197
Default Satellite falls on Canada?

On Sep 25, 10:41*am, Fred J. McCall wrote:
bob haller wrote:

Sooner or later a space trash recovery system will have to be put in
operation. hopefully before LEO becomes unusable.....


Don't be silly. *LEO is mostly 'self-clearing'. *Orbits decay and the
stuff comes down.

Once again, Bobbert will explain to us how the sky is falling....

--
"Ordinarily he is insane. But he has lucid moments when he is
*only stupid."
* * * * * * * * * * * * * * -- Heinrich Heine


self cleaning it is BUT at theres a tipping point where debris can be
generated faster than orbital decay creating a cloud of junk that will
endanger not only satellites but things like ISS, and more importandly
endanger new launches all of which must pass thru LEO....

one LEO earth orbit test or a satellite explosion for any reason is a
real hazard. since according to a shuttle FDO the debris will spread
somewhat evenly.

years ago a paint speck off a russian vehicle nearly put a hole in a
shuttle windshield.

imagine a soyuz capsule being taken out by a piece of debris too small
to track..........

 




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