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ROSAT RE-ENTRY-Another falling satellite!

 
Annie Matter
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User ID: 788508
Spain
10/15/2011 05:14 AM
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ROSAT RE-ENTRY-Another falling satellite!
(rosat or roast as I like to call it):

Here we go again folks! ohyeah


Space Weather News for Oct. 14, 2011
[link to spaceweather.com]

ROSAT RE-ENTRY: The ROSAT X-ray observatory, launched in 1990 by NASA and managed for years by the German Aerospace Center (DLR), will return to Earth within the next two weeks. Current best estimates place the re-entry between Oct. 22nd and 24th over an unknown part of Earth. ROSAT will produce a spectacular fireball when it re-enters, but not all of the satellite will disintegrate. According to the DLR, heat-resistant fragments as massive as 1.7 tons could reach Earth's surface.
Annie Matter  (OP)

User ID: 788508
Spain
10/15/2011 05:22 AM
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Re: ROSAT RE-ENTRY-Another falling satellite!
"Increased solar radiation activity has enlarged the atmosphere, increasing the friction on the satellite. So it will come down earlier than expected," he says. But he can't say where in that date range the satellite is most likely to deorbit - it depends on fast-fluctuating atmospheric conditions. Heatproof optics mean much more of ROSAT's mass is expected to survive re-entry compared to the NASA UARS satellite that fell into the Pacific Ocean last month.

[link to www.newscientist.com]
Annie Matter  (OP)

User ID: 788508
Spain
10/15/2011 05:36 AM
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Re: ROSAT RE-ENTRY-Another falling satellite!
...."However, the German-made satellite was described as containing ceramic and glass particles and scientific experts are worried that it is too heavy to burn up completely upon entering earth's atmosphere.



Speigel Online International reported that Germany is trying to find out how to deal with this concern.

Since the final target is not possible to forecast, no one can tell if the decommissioned x-ray research satellite will crash into a densely populated place. The German satellite was described as containing ceramic and glass particles and scientific experts are worried that it is too heavy to burn up completely upon entering earth's atmosphere.

Rosat is said to be 370 kilometers in the sky and carries a speed of 400 kilometers per hour and may cause a substantial amount of damage.

The German Aerospace Center (DLR) has issued a warning against any mass panic, according to the Speigel.



Until now, nobody knows the exact place where it will land although the German Space Agency announced that the Rontgensatellit or ROSAT is lighter than the NASA's UARS and weighs only approximately two and a half tons.

Rosat was launched in 1990 and decommissioned after 8 years. It has no more fuel left so there is no way that its path can be controlled.

German officials are looking into the possibility of shooting the satellite down to prevent any danger to human beings.
..."

[link to au.ibtimes.com]

ahhh
Anonymous Coward
User ID: 3328095
France
10/15/2011 06:56 PM
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Re: ROSAT RE-ENTRY-Another falling satellite!
Since yesterday, Rosat continues to fall
He lost 10 km in 24 hours
[link to www.infosatellites.com]

PU or ...?
RosatWatching
User ID: 999878
Canada
10/15/2011 11:01 PM
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Re: ROSAT RE-ENTRY-Another falling satellite!
Above post from France - - merci beaucoup! Thanks for the link. I have bookmarket it.





GLP