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ROSAT satellite to come crashing down
William Atkins
Monday, 17 October 2011 22:44
It's time to put on your anti-satellite helmets again, as the German-built ROSAT satellite readies itself for a crash back to Earth somewhere between October 21 and 25, 2011.
Its fuel ran out late in that decade and its mission was finalized on February 12, 1999. Since then, it has been slowly descending toward the Earth as its orbit continues to decay.
The German Aerospace Center (DLR) estimates that it should come crashing back to Earth anywhere between October 21 and October 25, 2011, although even those ranges could be widened by uncertainties in its orbit.
The German aerospace agency states that parts of the telescope will survive its re-entry into Earth's atmosphere. It predicts that pieces as heavy as 880 pounds (400 kilograms) are likely to crash to Earth intact.
The German agency states what will probably be the largest piece to survive its fall from orbit: 'The largest single fragment will probably be the telescope's mirror'¦.'
And, as of September 2011, the satellite is in an orbit of about 270 kilometers above the Earth.
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