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Huge Defunct Satellite Falling to Earth Faster Than Expected

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ChandlerJr Donating Member (554 posts) Send PM | Profile | Ignore Fri Sep-16-11 05:33 PM
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Huge Defunct Satellite Falling to Earth Faster Than Expected
NASA space junk experts have refined the forecast for the anticipated death plunge of a giant satellite, with the U.S. space agency now predicting the 6 1/2-ton climate probe will plummet to Earth around Sept. 23, a day earlier than previously reported.

"Re-entry is expected Sept. 23, plus or minus a day. The re-entry of UARS is advancing because of a sharp increase in solar activity since the beginning of this week," NASA officials wrote in a status update today (Sept. 16). The projection is a day earlier than a previous forecast released by NASA yesterday.

NASA spokeswoman Beth Dickey confirmed with SPACE.com earlier today that the reason UARS is expected to fall early in its re-entry window is because of the sharp uptick in solar activity. Solar effects from the sun can create an extra drag on satellites in space because they can heat the Earth's atmosphere, causing it to expand, agency officials have said.


Fascinating how quickly solar activity can affect the atmosphere by warming it up and expanding it to that degree.

http://www.space.com/12982-dead-nasa-satellite-falling-earth-sept-24.html


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Davis_X_Machina Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Sep-16-11 05:36 PM
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1. F=MA. Those molecules..
....of gas are widely scattered that high up, but that satellite is really hauling, and the resulting impacts, each one of which taken individually is less than minute, taken collectively.....

DUCK!
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CaliforniaPeggy Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Sep-16-11 05:39 PM
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2. That is fascinating...
Does NASA have any idea where it'll land?

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ChandlerJr Donating Member (554 posts) Send PM | Profile | Ignore Fri Sep-16-11 05:41 PM
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3. According to the article
pretty much Earth!
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nadinbrzezinski Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Sep-16-11 05:42 PM
Response to Reply #2
4. To quote them
Edited on Fri Sep-16-11 05:42 PM by nadinbrzezinski
anywhere north of Antartica and south of the North Pole.

Until it enters atmosphere they can't predict it. And then it will be 15 minute warning.

:hide:
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slackmaster Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Sep-16-11 05:45 PM
Response to Reply #2
5. "...somewhere between the latitudes of northern Canada and southern South America..."
:argh:
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