Two Satellites Collide

[spacetrack]

Russians aren't to blame.

the pieces are so spread out now that they overlap with other iridium's in the same orbit.

and at the moment it looks like a lot of it won't decay until the second half of the year.

 

[Yoda]

One of my patient's whom I've been discussing this with is retired Air-Force and was involved with these type's of sattelites.
According to him these birds do a lot more then "just" transfer phone calls........

 

[spacetrack]

One of my patient's whom I've been discussing this with is retired Air-Force and was involved with these type's of sattelites.
According to him these birds do a lot more then "just" transfer phone calls........

well yeah.... who's and what type of phone call...

 

[simonpro]

One of my patient's whom I've been discussing this with is retired Air-Force and was involved with these type's of sattelites.
According to him these birds do a lot more then "just" transfer phone calls........

Good for him.
He's lying.

 

[T.Neo]

I wonder if this Iridium flared when it impacted .

 

[SiberianTiger]

One of my patient's whom I've been discussing this with is retired Air-Force and was involved with these type's of sattelites.
According to him these birds do a lot more then "just" transfer phone calls........

Anyway, it's simple as ABC to prove that the Russian satellite was not moving all along by the existing archive TLE's and graphs published by http://space-track.org/ for instance (object 22675).

Also, destroying this Iriduim is not making sense from any military/intelligence standpoint that can be thought of. Or maybe rather to put fear of God into some people by making them believe in mystic powers of Russians who own a swarm of dead satellites which they can turn to zombies at will? But that seems to be a needless effort, as I can see.

 

[spacetrack]

can never be sure why the Americans didn't move it. either they simply didn't know or they thought they'd risk it.

there's still such a lot of the fengyun debris up there, it's going to be such a pain in the ass.

 

[T.Neo]

Would be cool if someone could invent a huge kevlar sheet, or something, that would trap small debris and pull them down to Earth.

 

[spacetrack]

Would be cool if someone could invent a huge kevlar sheet, or something, that would trap small debris and pull them down to Earth.

it'll all burn up anyway, but yeah its a bit of a hazard been up there.

 

[Urwumpe]

One of my patient's whom I've been discussing this with is retired Air-Force and was involved with these type's of sattelites.

What, he was responsible for the US Airforce first becoming customer of the services of Iridium and quickly becoming so dependent on it, that the US Airforce has to artificially keep the company alive?

The air force did neither build the spacecraft, nor the ground systems, nor does the Airforce operate it - they just pay Iridium LLC lot's of money for existing (A 36 million USD p.a. contract for unlimited access of 20,000 users). The Airforce operates GPS and WAAS.

According to him these birds do a lot more then "just" transfer phone calls........

According to Motorola, who built the satellites and own the patents for the construction processes, they can really do more. They allow the same kind of digital data communication like a GSM network (In fact, the whole technology behind is identical except the air segment) and a part of the frequency spectrum is now used for measuring hydroxyl emissions in the atmosphere.

Oh, terrible. A reason for Russia to launch a satellite in 1993, operate it for 5 years, and turn it into an inert ice block for over 10 years, right one year after the second group of six Iridium satellites launched on a Russian Proton rocket.

http://www.astronautix.com/craft/lm700.htm

Your fact-free hate talk is disgusting.

 

[djidji]

in soviet russia satellite tracks YOU

 

[Yoda]

What, he was responsible for the US Airforce first becoming customer of the services of Iridium and quickly becoming so dependent on it, that the US Airforce has to artificially keep the company alive?

The air force did neither build the spacecraft, nor the ground systems, nor does the Airforce operate it - they just pay Iridium LLC lot's of money for existing (A 36 million USD p.a. contract for unlimited access of 20,000 users). The Airforce operates GPS and WAAS.



According to Motorola, who built the satellites and own the patents for the construction processes, they can really do more. They allow the same kind of digital data communication like a GSM network (In fact, the whole technology behind is identical except the air segment) and a part of the frequency spectrum is now used for measuring hydroxyl emissions in the atmosphere.

Oh, terrible. A reason for Russia to launch a satellite in 1993, operate it for 5 years, and turn it into an inert ice block for over 10 years, right one year after the second group of six Iridium satellites launched on a Russian Proton rocket.

http://www.astronautix.com/craft/lm700.htm

Your fact-free hate talk is disgusting.

How is this 'Hate talk"; did I call anybody names ?
I'm just expressing my view.

Stop pointing fingers Urwumpe; no hate talk here !

 

[Urwumpe]

How is this 'Hate talk"; did I call anybody names ?
I'm just expressing my view.

Accusing a country of a hostile act without any facts or logic on your side is hate talk.

And like I have shown by the stone-cold facts: You are talking against the observed reality.

 

[Yoda]

"Observed Reality" depends on from which standpoint you observe !
Not everything you see is truly like it is.

End of discussion

 

[Artlav]

Hm. Am i the only one who interpreted:

Sounds more like a deliberate act to me to take out a sattelite that might have been snooping around in the wrong spot............

Makes you wonder what the Russians are up to !

As Iridium satellite being used to take out a supposedly-defunct Russian satellite that was actually snooping around in the wrong spot?


-----Post Added-----


And a more on-topic question - was that collision an observable event?
If they collided at near 8km/s velocity, shouldn't there be a flash or something visible from the ground?

What are the dynamics of such an impact - which plane the pieces are in for example?
Or did the satellites just clipped each other producing a debris field and a couple of noseless derelicts?

 

[Urwumpe]

Not everything you see is truly like it is.

Yeah, but still, I do see at least something.

 

[T.Neo]

And a more on-topic question - was that collision an observable event?
If they collided at near 8km/s velocity, shouldn't there be a flash or something visible from the ground?

What are the dynamics of such an impact - which plane the pieces are in for example?
Or did the satellites just clipped each other producing a debris field and a couple of noseless derelicts?

I asked the same thing.

I wonder if this Iridium flared when it impacted .

 

[Urwumpe]

And a more on-topic question - was that collision an observable event?
If they collided at near 8km/s velocity, shouldn't there be a flash or something visible from the ground?

Should produce a flash, but I doubt it is visible from the ground. Not all energy is converted into thermal radiation.

What are the dynamics of such an impact - which plane the pieces are in for example?

In many planes. The collision produces supersonic shock waves inside both spacecraft, which make them explode in all directions. In general, you can expect most debris following three paths: The two initial orbits and the path, the satellites would have taken after an elastic collision. The rest is diffusely scattered.

Or did the satellites just clipped each other producing a debris field and a couple of noseless derelicts?

Both. Some part of the impact ends as thermal energy, another part as small shrapnel and you also have large fragments, which did break away early in the collision without absorbing much energy.

 

[spacetrack]

Hm. Am i the only one who interpreted:

As Iridium satellite being used to take out a supposedly-defunct Russian satellite that was actually snooping around in the wrong spot?


-----Post Added-----


And a more on-topic question - was that collision an observable event?
If they collided at near 8km/s velocity, shouldn't there be a flash or something visible from the ground?

What are the dynamics of such an impact - which plane the pieces are in for example?
Or did the satellites just clipped each other producing a debris field and a couple of noseless derelicts?

theres not a lot left of them, it was a pretty big hit.

i'd really like to see what the impact looked like, but i'm not sure they'd be so noticeable, certainly not with the human eye.

also some people in here need to keep it cool. i don't believe there's any hate talk or rash/serious accusations going on.


-----Post Added-----

In many planes. The collision produces supersonic shock waves inside both spacecraft, which make them explode in all directions. In general, you can expect most debris following three paths: The two initial orbits and the path, the satellites would have taken after an elastic collision. The rest is diffusely scattered.

true. the vast majority of pieces are following the path of the original satellites. obviously some with an increased or decreased period. as well though, there are some that have moved away slightly from the original orbitals path. soon likely to create a belt of debris round the earth.

 

[SiberianTiger]

A reason for Russia to launch a satellite in 1993, operate it for 5 years, and turn it into an inert ice block for over 10 years

It has been reported that this one snapped off after just about 6 months of service.