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NASA warns of falling a large satellite to Earth - Re-entry is expected between 11:45 p.m. Friday, Sept. 23, and 12:45 a.m., Sept. 24, Eastern Dayligh

NASA warns of falling a large satellite to Earth - Re-entry is expected between 11:45 p.m. Friday, Sept. 23, and 12:45 a.m., Sept. 24, Eastern Daylight Time (3:45 a.m. to 4:45 a.m. GMT)

Update #12

Fri, 23 Sep 2011 09:50:07 PM CDT


As of 10:30 p.m. EDT on Sept. 23, 2011, the orbit of UARS was 85 miles by 90 miles (135 km by 140 km). Re-entry is expected between 11:45 p.m. Friday, Sept. 23, and 12:45 a.m., Sept. 24, Eastern Daylight Time (3:45 a.m. to 4:45 a.m. GMT). During that time period, the satellite will be passing over Canada and Africa, as well as vast areas of the Pacific, Atlantic and Indian oceans. The risk to public safety is very remote.

http://www.nasa.gov/mission_pages/uars/index.html
 
Re: NASA warns of falling a large satellite to Earth - Re-entry is expected between 11:45 p.m. Friday, Sept. 23, and 12:45 a.m., Sept. 24, Eastern Daylight Time (3:45 a.m. to 4:45 a.m. GMT)

sate.jpg

realtime satellite tracker http://mada.la.coocan.jp/sat/index.htm english or japanese

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UARS NASA SATELLITE 3D Tracking http://www.ustream.tv/channel/theweatherspace-news

snap20110924142431.jpg
http://twitter.com/#!/IamUARS
http://twitter.com/#!/IamUARS/status/117466360531005441
 
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Re: NASA warns of falling a large satellite to Earth - Re-entry is expected between 11:45 p.m. Friday, Sept. 23, and 12:45 a.m., Sept. 24, Eastern Daylight Time (3:45 a.m. to 4:45 a.m. GMT)

Update #13

Fri, 23 Sep 2011 11:55:17 PM CDT


As of 10:30 p.m. EDT on Sept. 23, 2011, the orbit of UARS was 85 miles by 90 miles (135 km by 140 km). Re-entry was expected between 11:45 p.m. Friday, Sept. 23, and 12:45 a.m., Sept. 24, Eastern Daylight Time (3:45 a.m. to 4:45 a.m. GMT). During that time period, the satellite was passing over Canada and Africa, as well as vast areas of the Pacific, Atlantic and Indian oceans. The risk to public safety was very remote. NASA is working to confirm the re-entry location and time and will provide an update shortly.

http://www.nasa.gov/mission_pages/uars/index.html
 
Re: NASA warns of falling a large satellite to Earth - Re-entry is expected between 11:45 p.m. Friday, Sept. 23, and 12:45 a.m., Sept. 24, Eastern Daylight Time (3:45 a.m. to 4:45 a.m. GMT)

http://www.cbsnews.com/stories/2011/09/23/scitech/main20110732.shtml
September 23, 2011 11:48 AM

NASA gives 1-hour window for falling satellite
[snip]
The United States isn't entirely out of the woods; the possible strike zone skirted Washington state."

Earlier, it was reported that the satellite clung to space Friday, apparently flipping position in its ever-lower orbit and stalling its death plunge.

"It just doesn't want to come down," said Jonathan McDowell of the Harvard-Smithsonian Center for Astrophysics.

McDowell said the satellite's delayed demise demonstrates how unreliable predictions can be. That said, "the best guess is that it will still splash in the ocean, just because there's more ocean out there."....
Click to expand...
 
Re: NASA warns of falling a large satellite to Earth - Re-entry is expected between 11:45 p.m. Friday, Sept. 23, and 12:45 a.m., Sept. 24, Eastern Daylight Time (3:45 a.m. to 4:45 a.m. GMT)

Sat, 24 Sep 2011 04:55:17 PM GMT+1200 "We expect that the debris has landed by now. We're just waiting to get confirmation of where from the U.S. Strategic Command that keeps an eye on space debris."
 
Re: NASA warns of falling a large satellite to Earth - Re-entry is expected between 11:45 p.m. Friday, Sept. 23, and 12:45 a.m., Sept. 24, Eastern Daylight Time (3:45 a.m. to 4:45 a.m. GMT)

Update #16

Sat, 24 Sep 2011 10:37:25 AM CDT

NASA?s decommissioned Upper Atmosphere Research Satellite fell back to Earth between 11:23 p.m. EDT Friday, Sept. 23 and 1:09 a.m. EDT Sept. 24. The Joint Space Operations Center at Vandenberg Air Force Base in California said the satellite entered the atmosphere over the North Pacific Ocean, off the west coast of the United States. The precise re-entry time and location of any debris impacts are still being determined. NASA is not aware of any reports of injury or property damage.

This is your source for official information on the re-entry of UARS. All information posted here has been verified with a government agency or law enforcement.

NASA will conduct a media telecon at 2 p.m. ET to discuss the re-entry. The telecon will be streamed live at www.nasa.gov/newsaudio.

http://www.nasa.gov/mission_pages/uars/index.html
 
Re: NASA warns of falling a large satellite to Earth - Re-entry is expected between 11:45 p.m. Friday, Sept. 23, and 12:45 a.m., Sept. 24, Eastern Daylight Time (3:45 a.m. to 4:45 a.m. GMT)

UARS Re-Entry Overview

  • NASA's UARS Re-enters Earth's Atmosphere

    NASA?s decommissioned Upper Atmosphere Research Satellite (UARS) fell back to Earth between 11:23 p.m. EDT Friday, Sept. 23 and 1:09 a.m. Sept. 24, 20 years and nine days after its launch on a 14-year mission that produced some of the first long-term records of chemicals in the atmosphere.

    The precise re-entry time and location of debris impacts have not been determined. During the re-entry period, the satellite passed from the east coast of Africa over the Indian Ocean, then the Pacific Ocean, then across northern Canada, then across the northern Atlantic Ocean, to a point over West Africa. The vast majority of the orbital transit was over water, with some flight over northern Canada and West Africa.

    Six years after the end of its productive scientific life, UARS broke into pieces during re-entry, and most of it up burned in the atmosphere. Data indicates the satellite likely broke apart and landed in the Pacific Ocean far off the U.S. coast. Twenty-six satellite components, weighing a total of about 1,200 pounds, could have survived the fiery re-entry and reach the surface of Earth. However, NASA is not aware of any reports of injury or property damage.

    The Operations Center for JFCC-Space, the Joint Functional Component Command at Vandenberg Air Force Base, Calif., which works around the clock detecting, identifying and tracking all man-made objects in Earth orbit, tracked the movements of UARS through the satellite?s final orbits and provided confirmation of re-entry.

    ?We extend our appreciation to the Joint Space Operations Center for monitoring UARS not only this past week but also throughout its entire 20 years on orbit,? said Nick Johnson, NASA?s chief scientist for orbital debris, at NASA?s Johnson Space Center in Houston. ?This was not an easy re-entry to predict because of the natural forces acting on the satellite as its orbit decayed. Space-faring nations around the world also were monitoring the satellite?s descent in the last two hours and all the predictions were well within the range estimated by JSpOC.?

    UARS was launched Sept. 12, 1991, aboard space shuttle mission STS-48 and deployed on Sept. 15, 1991. It was the first multi-instrumented satellite to observe numerous chemical components of the atmosphere for better understanding of photochemistry. UARS data marked the beginning of many long-term records for key chemicals in the atmosphere. The satellite also provided key data on the amount of light that comes from the sun at ultraviolet and visible wavelengths. UARS ceased its scientific life in 2005.

    Because of the satellite's orbit, any surviving components of UARS should have landed within a zone between 57 degrees north latitude and 57 degrees south latitude. It is impossible to pinpoint just where in that zone the debris landed, but NASA estimates the debris footprint to be about 500 miles long.

    Additional resources:

    ? NASA News Release, Sept. 24, 2011
    ? UARS Final Groundtrack (473 KB PDF)
    ? Re-Entry and Risk Assessment (498 KB PDF)
    ? Frequently Asked Questions: Orbital Debris

    If you find something you think may be a piece of UARS, do not touch it. Contact a local law enforcement official for assistance.

    http://www.nasa.gov/mission_pages/uars/index.html

 
Re: NASA warns of falling a large satellite to Earth - Re-entry is expected between 11:45 p.m. Friday, Sept. 23, and 12:45 a.m., Sept. 24, Eastern Daylight Time (3:45 a.m. to 4:45 a.m. GMT)

http://www.nasa.gov/mission_pages/uars/index.html
Final Update: NASA's UARS Re-enters Earth's Atmosphere

NASA?s decommissioned Upper Atmosphere Research Satellite fell back to Earth at 12 a.m. EDT (0400 GMT), as Friday, Sept. 23, turned to Saturday, Sept. 24 on the United States east coast. The Joint Space Operations Center at Vandenberg Air Force Base in California has determined the satellite entered the atmosphere over the Pacific Ocean at 14.1 degrees south latitude and 189.8 degrees east longitude (170.2 west longitude). This location is over a broad, remote ocean area in the Southern Hemisphere, far from any major land mass. The debris field is located between 300 miles and 800 miles downrange, or generally northeast of the re-entry point. NASA is not aware of any possible debris sightings from this geographic area.

This is your source for official information on the re-entry of UARS. All information posted here has been verified with a government or law enforcement agency. This is NASA's final status report on the re-entry of UARS....
Click to expand...
 
Re: NASA warns of falling a large satellite to Earth - Re-entry is expected between 11:45 p.m. Friday, Sept. 23, and 12:45 a.m., Sept. 24, Eastern Daylight Time (3:45 a.m. to 4:45 a.m. GMT)

A six-ton satellite raced along New Zealand's west coast and crossed just north of Auckland in its death dive on Saturday, a Nasa map reveals.

It would have been plunging through New Zealand skies at around 5pm on Saturday.

Bits of it could have showered down on another part of New Zealand ? Tokelau in the South Pacific.

more http://www.stuff.co.nz/auckland/local-news/5698050/Dead-satellite-nearly-hit-Auckland
 
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