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Out Of Mind » GALACTIC AWARENESS » UFO DISCLOSURE, ISS, MUFON, SETI, SPACE X & NASA » Tiangong-1’s fiery death and ocean plunge

Tiangong-1’s fiery death and ocean plunge

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1 Tiangong-1’s fiery death and ocean plunge on Sat Apr 07, 2018 8:23 am

PurpleSkyz

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Tiangong-1’s fiery death and ocean plunge

By Deborah Byrd in Space

Tiangong-1’s reentry was confirmed as April 2 at 00:16 UTC (April 1 at 8:16 p.m. EDT). Reentry occurred in the Pacific Ocean, northwest of Tahiti.



Reentry position plotted by Tony Dunn (@Tony873004 on Twitter)
China’s first space station, Tiangong-1, reentered Earth’s atmosphere on April 2 at 00:16 UTC (April 1 at 8:16 p.m. EDT; translate UTC to your time). The reentry was over the Pacific Ocean. Did any pieces of the space station survive reentry, and did any strike land? Some pieces almost certainly survived the fall, and, at this time, we’ve heard no reports of pieces striking land.
What were the chances a piece of Tiangong-1 would strike someone or something? Vanishingly small, according to experts, but not zero. Read Guy Ottewell’s blog for his thoughts on the statistical chances a piece of Tiangong-1 would strike you.
So, at present, it’s unknown if any pieces will be found on land, although it seems unlikely. Space experts warn that if you think you have found a chunk of Tiangong-1, you should not pick it up or breathe in any fumes emanating from it. The space junk may be contaminated with hydrazine, a toxic rocket fuel.
Several organizations tracked predicted reentry times, including the U.S.-based analysis group Aerospace Corporation, the U.S. Strategic Command’s Joint Force Space Component Command (JFSCC), the European Space Agency and scientists around the world with the Inter-Agency Space Debris Coordination Committee. These experts tracked it carefully, quite accurately, until the end.
Tiangong-1 was school-bus-sized. Its main body was approximately 34 feet (10.4 meters) long.
China launched its space station in 2011, and, originally, it planned a controlled reentry. But, in March 2016, the Tiangong-1 space station ceased functioning. Ground teams lost control of the craft, and it could no longer be commanded to fire its engines. It was, therefore, expected to make an uncontrolled reentry.
Tiangong-1 was not designed to withstand reentry, as some spacecraft are. The extreme heat and friction generated by its high-speed passage through Earth’s atmosphere would have caused the spacecraft to burn up, at least mostly, over the Pacific.
Experienced amateur sky observers also caught video of Tiangong-1 last week as it sped across our sky on its way to a fiery demise this weekend. We know of at least two who succeeded in this demanding observation. See their videos below. Brian Ottum posted his view of the space station – from early in the day on Wednesday – on Instagram:

The Virtual Telescope Project in Rome and Tenagra Observatories in Arizona provided an exciting livestream of their successful attempt to view Tiangong-1, also earlier in the day on Wednesday. Check this out! It’s really fun to hear Gianluca Masi‘s commentary as he searches for – and finds – the space station.
Tiangong-1’s major goal was to test and master technologies related to orbital rendezvous and docking. One uncrewed and two crewed missions – executed by the Shenzhou (Divine Craft) spacecraft – took place during its operational lifetime. ESA explained:
Following launch in 2011, the Tiangong-1 orbit began steadily decaying due to the faint, yet not-zero, atmospheric drag present even at 300 or 400 km altitude [about 200 to 250 miles altitude]. This affects all satellites and spacecraft in low-Earth orbit, like the International Space Station, for example.

Tiangong-1 potential reentry area. Map showing the area between 42.8 degrees north and 42.8 degrees south latitude (in green), over which Tiangong-1 was predicted to reenter. Image via ESA CC BY-SA IGO 3.0.
Bottom line: China’s first space station has reentered over the Pacific Ocean.

MORE HERE: http://earthsky.org/space/china-tiangong-1-uncontrolled-re-entry-mar-apr-2018?utm_source=EarthSky+News&utm_campaign=ff6812ae51-EMAIL_CAMPAIGN_2018_02_02&utm_medium=email&utm_term=0_c643945d79-ff6812ae51-393775709

Thanks to: http://earthsky.org



  

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