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http://www.spaceflightnow.com/news/n1110/12rosat/ Less than a month after NASA's falling UARS satellite grabbed the headlines, the German space agency says one of its abandoned satellites (ROSAT) will dive back to Earth later this month, but no one knows where it will land. ROSAT weighs apx 5348 lbs and 1200 lbs of of ceramic parts that will not burn up on re-retry. it is expected to have a velocity of apx 17,000 miles per hour on re-entry. currently its velocity is apx 7.47 km/second 7.47 km/s * 3600 seconds = 26892 km/hour the 1200 lb chunk of ceramic debri 1 pound= 453.59237 grams 1200 * 453.59237 grams =544310.844 grams 5280 feet (1 mile)= 1609.344 meters 17000 mph / 3600 = 4.72 miles/second 4.72 mps * 1609.344 meters = 7599.68 m/s p=mv 544.3 kg * 7599.68 m/s = 4,136,505.824 Ns that is the momentum that the ceramics will apply to our atmosphere. it will gain speed during re-entry on its path to the earth. lets just hope it hits in the middle of one of the oceans it passes over. after all the earths oceans cover 72 % of the earths surface. its too bad we didnt have a way to just go get it or push it into our sun.
3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.
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This could bring us back to questions about who takes responsibility for any damage caused.
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this could have been a usage for one of the U.S. black projects , the below space plane could have retrieved the satellite or if its size and weight would not allow for retrieval it could have corrected the satelights course toward our sun. if it were fitted with a device to tow or push the satellite.  right now ROSAT is crossing south of Victoria Australia and New Zealand if you look to the south you may be able to see it. if it is hitting any of the atmosphere at all it should look like a fast moving star.
3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.
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I would think that if there are any damages the German Government or who ever owns the satellite would pay for any damages.
3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.
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I would think that if there are any damages the German Government or who ever owns the satellite would pay for any damages. Is that "would" or "should"?
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Make that MUST pay for since it is apparently overhead.
Why do these satellites all aim at Oz when falling?
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Why do these satellites all aim at Oz when falling? I think you have the material for a good conspiracy theory here!
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The Roentgensatellit (ROSAT) was a joint German, US and British X-ray astrophysics project. ROSAT so , Im not certain but joint means they were all in it together so maybe any damages would be divided up between those involved. Im certain that joint project also means that all of the 3 involved must agree to not send it into a stable orbit using current technology. and trying to get 3 nations to agree on something within a time period of less that 500 years is a difficult task on its own. it would be like trying to get a republican politician to agree that the U.S. Government needs money to operate. but you dont see them voting on pay reductions for themselves either.
3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.
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Its covered by a treaty ( http://en.wikipedia.org/wiki/Space_Liability_Convention)
States (countries) bear international responsibility for all space objects that are launched within their territory. This means that regardless of who launches the space object, if it was launched from State A’s territory, or from State A’s facility, or if State A caused the launch to happen, then State A is fully liable for damages that result from that space object.
So first the launch state bears responsibility and liability for the space junk reguardless who owns it or operates it. I believe therefore it is USA that bears responsibility for liability since it was launched from Cape Canaveral and that is the view coming out of German Aerospace that at least all 3 parties involved are liable under an agreement they have http://www.dlr.de/dlr/en/Portaldata/1/Resources/documents/ROSAT_sch-tedd_en.pdfhttp://www.dlr.de/dlr/en/desktopdefault.aspx/tabid-10433/622_read-832/Second, only states can litigate against each other the actual civillian victum that is "hit" has no rights which is rather interesting. Another interesting fact is being hit by space debris is defined specifically as "not an act of god" by insurance bodies so they would have to pay out on such an event. So you are insured but your ability to claim damages is dependant upon what "states" are involved.
Last edited by Orac; 10/17/11 04:21 AM.
I believe in "Evil, Bad, Ungodly fantasy science and maths", so I am undoubtedly wrong to you.
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I suppose the n2yo website must be experiencing alot of hits and its server is down , the tracking of the ROSAT is no longer available due to a DNS error. Its probably a 1 in a billion chance or more but the 3 could be in for a monetary disaster. I think its really stupid to not have a vehicle to handle satellites that are abandoned and are expected to just fall uncontrolled to earth. especially when there are vehicles that could prevent this. what if it falls on this building the worlds tallest http://www.burjkhalifa.ae/
3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.
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As discussed above the building would have insurance the dead people well thats a different story!
But I do agree with your recovery idea
Last edited by Orac; 10/17/11 03:47 PM.
I believe in "Evil, Bad, Ungodly fantasy science and maths", so I am undoubtedly wrong to you.
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http://www.huffingtonpost.com/2011/10/25/german-satellite-crashed-bay-of-bengal_n_1030240.html BERLIN -- Heavily populated Asian cities avoided a dangerous collision with space junk last weekend as a defunct German satellite crashed into the sea somewhere between India and Myanmar.
The ROSAT satellite re-entered the atmosphere at 0150 GMT Sunday (9:50 p.m. Saturday EDT) above South Asia's Bay of Bengal, but it remains unclear how much, if any, of its debris actually reached the sea's surface, the German Aerospace Center said Tuesday.
Most of the 21-year-old satellite was expected to burn up as it hit the atmosphere, but up to 30 fragments weighing a total of 1.87 tons (1.7 metric tons) may have splashed into the sea.
Scientists could no longer communicate with the defunct satellite, let alone control it.
Two Chinese cities with millions of residents each, Chongqing and Chengdu, were only minutes further northeast along the satellite's projected path, according to Jonathan McDowell of the Harvard-Smithsonian Center for Astrophysics in Cambridge,
3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.
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1.87 tons (1.7 metric tons) Can that be right? Of course; that must be US tons! US ton = 2,000lb Tonne = 2,204lb real ton = 2,240lb Confusin innit!
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I dont know. I guess its just this way or that. maybe you could ship a U.K. tonne of potatoes to the U.S. and have 240 lbs extra. http://www.youtube.com/watch?v=GSv-lKwOQvE
3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.
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There never was nothing.
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