Spy satellite to make uncontrolled re-entry.

everlasting · Feb 21, 2008

I heard today that the satellite was successfully destroyed by a missile. That reminds me so much of a science fiction book that was published last year called Moon over Key Biscayne. - A light novel that gets into satellites and objects on a collision course with Earth.

3488 · Feb 21, 2008

I'm pretty sure that RADAR will be tracking the debris of USA 193. Hopefully because of its 'low altitude', the debris will enter the atmosphere in a short while, unlike the Chinese defunct weather satelitte destroyed, that was very much higher. The debris is currently passing over a point south of Tasmania, Australia. Andrew Brown. <div class="Discussion_UserSignature"> "I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before". Linda Morabito on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.http://www.launchphotography.com/ http://anthmartian.googlepages.com/thisislandearthhttp://web.me.com/meridianijournal </div>

3488 · Feb 21, 2008

US Navy video of the destruction of USA 193. Andrew Brown. <div class="Discussion_UserSignature"> "I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before". Linda Morabito on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.http://www.launchphotography.com/ http://anthmartian.googlepages.com/thisislandearthhttp://web.me.com/meridianijournal </div>

slidelock · Feb 21, 2008

I am betting that Kwajalein, Ballistic Missile Defense Test Site was involved in both the imaging and radar surveillance of the shoot and ongoing monitoring of the debris field. Unfortunately, its been so long since I was there, I have no remaining contacts to ask.

job1207 · Mar 7, 2008

Hi Folks While the board was DOWN, I ran across an article that noted that some of the debris was pretty far up there, at about 1400 miles or so. I will do a search and find it again, but it seems to me that the explosion of the Hydrazine was NOT what they wanted to do, or perhaps you have a better explanation.  Comments please. Thanks

job1207 · Mar 7, 2008

A check of the Gabbard plot for this event shows debris ranging from 147 km altitude at perigee all the way up to 2,689 km at apogee. Of particular concern, however, is that the relatively small number of conjunctions (close approaches within 5 km of a satellite on orbit) reported for this debris so far has included satellites such as LANDSAT 5, SPOT 5, SAR-LUPE 3, QUICKBIRD 2, OFEQ 7, several Iridium satellites, and even the International Space Station. For the latest conjunction report, please check SOCRATES. <img src="http://celestrak.com/events/USA-193/orbits-small.gif" border="0" alt="Click for larger image" />

MeteorWayne · Mar 7, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>A check of the Gabbard plot for this event shows debris ranging from 147 km altitude at perigee all the way up to 2,689 km at apogee. Of particular concern, however, is that the relatively small number of conjunctions (close approaches within 5 km of a satellite on orbit) reported for this debris so far has included satellites such as LANDSAT 5, SPOT 5, SAR-LUPE 3, QUICKBIRD 2, OFEQ 7, several Iridium satellites, and even the International Space Station. For the latest conjunction report, please check SOCRATES. Posted by job1207</DIV> That's very interesting.It appears that the shootdown greatly increased the risk to other satellites, protestations to the contrary notwithstanding. So we did indeed pollute the LEO environment with shrapnel that could cause damage, wheras leaving it alone would have produced none.Hmmm, a black eye for us, methinks. <div class="Discussion_UserSignature"> But the Krell forgot one thing John. Monsters. Monsters from the Id. I really, really, really, really miss the "first unread post" function </div>

bobble_bob · Mar 7, 2008

By shooting it down the US Military secret hardware is safe tho 

Which im sure was their primary objective <div class="Discussion_UserSignature"> </div>

Zipi · Mar 7, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>By shooting it down the US Military secret hardware is safe tho

Which im sure was their primary objective Posted by bobble_bob</DIV> Amazing... I believed that the Navy (or whatever USA agency) have studied this issue carefully enough to avoid these kind of thing. And they ensured at the press conferences that this kind of thing won't happen. So it actually could be a satellite kill to ensure their secret technologies instead of the hydrazine. Or is this really so unknown area of technology that they cannot predict such things? Even Wayne Hale was ensuring us this thing...How long it will actually take until this mess has been cleaned? To at least almost to that situation what it were before the "shootdown"... <div class="Discussion_UserSignature"> </div>

job1207 · Mar 7, 2008

So, to the engineers, how long will something at 2689KM take to come down?

MeteorWayne · Mar 7, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>So, to the engineers, how long will something at 2689KM take to come down? Posted by job1207</DIV>It depends not on where the apogee is, but where the perigee is. All of the debris should have perigees around the shootdown point. <div class="Discussion_UserSignature"> But the Krell forgot one thing John. Monsters. Monsters from the Id. I really, really, really, really miss the "first unread post" function </div>

job1207 · Mar 7, 2008

I see.

job1207 · Mar 11, 2008

So, when are these higher objects going to de orbit themselves?

job1207 · Mar 12, 2008

<img src="file:///C:/DOCUME%7E1/Owner/LOCALS%7E1/Temp/moz-screenshot.jpg" alt="" /><img src="file:///C:/DOCUME%7E1/Owner/LOCALS%7E1/Temp/moz-screenshot-1.jpg" alt="" /><img src="http://celestrak.com/events/USA-193-Lifetime.gif" border="1" alt="Click for PDF image" /> Plot of Orbital Decay Rate of USA 193 Debris (black = 10 cm diameter, blue = 20 cm diameter)

MeteorWayne · Mar 12, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'> Plot of Orbital Decay Rate of USA 193 Debris(black = 10 cm diameter, blue = 20 cm diameter) Posted by job1207</DIV>It's really sad. The shootdown was done at a height where the path would be well known before impact; that meant that the shootdown altitude was high enough that other satellites would be endangered. If they had waited another 3 days, other satellites would not have been under as much risk, but the chances of success would have been lower. But of course, that could not have been permitted; a miss was unacceptable. So they went ahead and did it when the entire LEO enviroment was permanently endangered. I was shocked to see that Iridiums were at risk at ~ 600 km. To me, that's a major screw up, and in fact a repudiation of the alleged reason for the shootdown. To risk endangering hundreds of satellites for the hydrozine cannot be justified. If, as I suspect, the true purpose was to prevent technology from falling into the wrong hands, it was still a bad choice. If one of these pieces hits a satellite in LEO, the cascading results could ruin the LEO environment forever. To me, that's not a fair price to pay. <div class="Discussion_UserSignature"> But the Krell forgot one thing John. Monsters. Monsters from the Id. I really, really, really, really miss the "first unread post" function </div>

Zipi · Mar 12, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'> Plot of Orbital Decay Rate of USA 193 Debris(black = 10 cm diameter, blue = 20 cm diameter) Posted by job1207</DIV> Good to see that 50% of the debris is gone in 20 days... Still over 3 months to take almost all completely out, if I red correctly.Afterall this was very risky move from the USA, the world police. Let's hope that their gambling with the shoot out won't cause any long term problems. I really believed that they could do it a sensible way after all those press conferences about the shootdown. <div class="Discussion_UserSignature"> </div>

scottb50 · Mar 12, 2008

.After all this was very risky move from the USA, the world police. Let's hope that their gambling with the shoot out won't cause any long term problems....Maybe the Satellite wasn't what it was portrayed to be, maybe it was a violation of a treaty. As I said earlier the reported size and weight of the satellite discussed in the press did not match up with the capabilities of the launch vehicle used.This administration has shown on numerous occasions they could care less about International commitments when they stand in their way.  <div class="Discussion_UserSignature"> </div>

PistolPete · Mar 12, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>.After all this was very risky move from the USA, the world police. Let's hope that their gambling with the shoot out won't cause any long term problems....Maybe the Satellite wasn't what it was portrayed to be, maybe it was a violation of a treaty. As I said earlier the reported size and weight of the satellite discussed in the press did not match up with the capabilities of the launch vehicle used.This administration has shown on numerous occasions they could care less about International commitments when they stand in their way.  Posted by scottb50</DIV>Ah, and thus the conspiracy theories begin.<img src="http://sitelife.space.com/ver1.0/Content/images/store/6/14/e6c2e4e7-e3cd-4e35-9e00-cc048bb3c0ea.Medium.gif" alt="" />This is going to spark some good ones because we will never know for certain what was on the satellite.  Hell, I'll bet you ten quatloos that within a week there will be someone here claiming that it wasn't even a satellite, but a flying saucer from Zeta Reticuli. <div class="Discussion_UserSignature"> So, again we are defeated. This victory belongs to the farmers, not us.-Kambei Shimada from the movie Seven Samurai </div>

scottb50 · Mar 13, 2008

Hell, I'll bet you ten quatloos that within a week there will be someone here claiming that it wasn't even a satellite, but a flying saucer from Zeta Reticuli. Or Dick Cheneys Death Star.  <div class="Discussion_UserSignature"> </div>

job1207 · Mar 16, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>It's really sad. The shootdown was done at a height where the path would be well known before impact; that meant that the shootdown altitude was high enough that other satellites would be endangered. If they had waited another 3 days, other satellites would not have been under as much risk, but the chances of success would have been lower. But of course, that could not have been permitted; a miss was unacceptable. So they went ahead and did it when the entire LEO enviroment was permanently endangered. I was shocked to see that Iridiums were at risk at ~ 600 km. To me, that's a major screw up, and in fact a repudiation of the alleged reason for the shootdown. To risk endangering hundreds of satellites for the hydrozine cannot be justified. If, as I suspect, the true purpose was to prevent technology from falling into the wrong hands, it was still a bad choice. If one of these pieces hits a satellite in LEO, the cascading results could ruin the LEO environment forever. To me, that's not a fair price to pay. Posted by meteorwayne</DIV> At what height would you have shot it down?

MeteorWayne · Mar 16, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'> At what height would you have shot it down?   Posted by job1207</DIV>I wouldn't have shot it down. <div class="Discussion_UserSignature"> But the Krell forgot one thing John. Monsters. Monsters from the Id. I really, really, really, really miss the "first unread post" function </div>

centsworth_II · Mar 16, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>...they went ahead and did it when the entire LEO enviroment was permanently endangered.... Posted by meteorwayne</DIV> Why do you say this? Do you not believe that almost all debris will be gone by four months after the shootdown? <div class="Discussion_UserSignature"> </div>

billslugg · Mar 16, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>This administration has shown on numerous occasions they could care less about International commitments when they stand in their way.  Posted by scottb50</DIV>OK - give me the top ten. Right off the top of your head. Bill SluggAlbany, GA  <div class="Discussion_UserSignature"> </div>

job1207 · Mar 16, 2008

I believe that means if ONE satellite in the Iridium family is hit, ALL of them will evenutally be destroyed by the domino effect.

Cygnus_X_1 · Mar 16, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>I believe that means if ONE satellite in the Iridium family is hit, ALL of them will evenutally be destroyed by the domino effect. Posted by job1207</DIV> That is not viable.  Domino effect is not applicable.  too much area/volume to affect other spacecraft <div class="Discussion_UserSignature"> </div>

Spy satellite to make uncontrolled re-entry.

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