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China's out-of-control space station could hit Earth in 2017

Lotus_stalk

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An obsolete, out-of-control Chinese space station is expected to come crashing back to Earth in a fiery ball of debris next year, sparking concerns that some pieces might survive re-entry and strike the planet's surface, perhaps in one of Canada's southern-most cities.

China's state-run Xinhua News Agency says the Tiangong 1 space station's orbit has been decaying by approximately 100 metres each day, with experts predicting it will "burn up in Earth's atmosphere in the latter half of 2017." China has lost contact with the space station and it's unknown where it will crash.

Science reporter Ivan Semeniuk of the Globe and Mail says the Tiangong 1 is an unusually large piece of space debris, and poses a greater risk of striking the Earth than the old satellites that typically burn up in the atmosphere when they fall. He adds that China has lost control of the space station, so it will be a "gamble" to see where it comes down.

http://www.ctvnews.ca/sci-tech/chin...ce-station-could-hit-earth-in-2017-1.3092267?

 
. .
Has There Been a Loss of Control?

Where will Tiangong-1 reenter?

How Difficult is it to Accurately Predict a Reentry?

Will objects from this reentry hit me or my property?
:rolleyes:

As all these questions can only expose how biased and ill-intentioned the Western propaganda machine is, hell-bent in smearing the ever more outstanding Chinese space achievements (due to desperation and jealousy as always), let us reassure all our Pakistani readers and Israeli hasbara as well, with some clarifications.

China has been working on developing laser weapons since the 1960s, and the People’s Liberation Army in 2015 published the book Light War that gives a central role to fighting a future war using lasers.

As already disclosed by the media, China is known to have operated at least 3 ASAT laser stations, in Anhui, Sichuan and Xinjiang.

In 2005, Chinese researchers have successfully conducted a satellite-blinding experiment using a 50-100 kilowatt capacity mounted laser gun in Xinjiang province. The target was a low orbit satellite with a tilt distance of 600 kilometers. The diameter of the telescope firing the laser beam is 0.6 meters wide. The accuracy of acquisition, tracking and pointing is less than 5 microradians.

Three researchers, Gao Minghui, Zeng Yuquang and Wang Zhihong disclosed plan for even more powerful ASAT lasers in The Chinese Optics journal in December 2013.

All worked for the Changchun Institute for Optics, Fine Mechanics and Physics – the leading center for laser weapons technology.

The plan proposed the building of a 5-ton chemical laser as a combat platform capable of destroying satellites in orbit. Given funding by the Chinese military, which is in charge of China’s space program, the anti-satellite laser could be deployed by 2023.


Although high secrecy is strictly enforced, one could compare the case of Tiangong-1 space laboratory with the ill-fated Phobos-Grunt Mars probe, that reentered over the South Eastern Pacific Ocean on 15 January 2011.

There was no random reentry over highly populated area. This time Tiangong-1 will also reenter over the Pacific Ocean, in a remotely controlled mode.
This suggests that China will secretly use its laser ASAT stations, to produce a thrust generated by heating the outer part of the spacecraft, thus lowering the perigee of Tiangong-1, when it had finally reached the ~140 km altitude threshold. This would eventually allow a safe reentry half an orbit later over the predesignated area over the Pacific Ocean.

This is the least China could do, as even North Korea has already disclosed its own Korean-style Anti-Meteor Laser System, needed to protect its planned future Lunar base, back in a New Year 2018 show!

:enjoy:

aerospace-tiangong-1-reentry-jpg.458630

▲ Map of Tiangong-1 ground track

reentry_map_2012_01_15_cb_1-jpg.458631

▲ An official map of the Phobos-Grunt reentry released by Roskosmos by 20:00 Moscow Time on Jan. 15, 2012.
Notice the similarity with Tiangong-1 regarding the relative location of the impact zone and the ASAT laser stations!


w020130723291509035315-jpg.458632

▲ Space imagery of Tianshan ASAT laser station. 中国天山部署战略反卫星激光武器


vlcsnap-2018-03-10-16h41m53s880-png.458633

▲ At T=40:54 North Korean Lunar base hit by meteor shower; Video published on Jan 1, 2018

38881704724_bc097d03e2_b-jpg.458635

▲ 10 North Korean astronauts combining beams of laser to thwart a meteor shower as depicted in a New Year 2018 show

vlcsnap-2018-03-10-16h46m07s336-png.458634

▲ At T=40:54 North Korean Lunar base hit by meteor shower; At T=41:33 Combined laser beams used to protect the North Korean Lunar base from meteor shower, in a New Year 2018 show. Video published on Jan 1, 2018

cool_thumb.gif





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Latest astrophotographies from China's 2 orbital space laboratories: Tiangong-1 and Tiangong-2


dykeypdvoailcka-jpg.459161

https://defence.pk/pdf/attachments/...1/?temp_hash=e4d24499e00af15d7774fb0ec52e7788
https://pbs.twimg.com/media/DYKeyPDVoAIlcka.jpg
https://twitter.com/makkisse999/status/973515308710313984
#天宮1号 (TIANGONG 1)の通過を撮影。予報1.3等級、北西から東へ。最高通過点高度29°(方位28°)。3/13, 19:06~18:08 頃、太陽高度-10°。明るい&雲多い,と状況悪かったが、ちらっと見えました。。 露出10秒x6枚 比較明合成, 対角魚眼 トリミング
▲ TIANGONG 1 pass captured from Tanegashima on 13 March 2018, 19:06~18:08 JST, 10 seconds x 6, fisheye, APS-C10 mm, PENTAX K-5II s
Estimated Magnitude: 1.3


dyck-4zu0aa1e2p-jpg.459162

https://defence.pk/pdf/attachments/...2/?temp_hash=e4d24499e00af15d7774fb0ec52e7788
https://pbs.twimg.com/media/DYCk-4zU0AA1E2P.jpg
https://twitter.com/makkisse999/status/972959236274601984
#天宮2号 (TIANGONG-2)の通過を撮影。3月12日 5:20~5:21, 予報1.0等級。最高通過点高度67°。影出からMax高度を少し過ぎたあたりまで。アルクトゥルスと北斗七星の間を通過。1、2枚目が空いたのは連写用レリーズのロック忘れ。 追尾(ポータブル赤道儀) 露出20秒×4枚 比較明合成,
▲ TIANGONG 2 pass between Arcturus and Uras Major captured from Tanegashima on 12 March 2018, 5:20~5:21 JST, 20 seconds x 4, f/3.2, ISO 2500, APS-C21 mm, PENTAX K-5II s
Estimated Magnitude: 1.0


Target in range, all PLA Laser Stations ready to fire!:flame:

:enjoy:


______________________________________



More smoking gun, or rather smoking lasers!:flame:
:lol:


Descent of China’s Tiangong-1 will not cause damage to earth: expert

March 14, 2018

According to the latest information issued by China’s manned space engineering office, since Feb. 25 to Mar. 4, 2018, Tiangong-1 was orbiting in stable condition and good shape at an average height of about 251.5 kilometers (perigee height: 238.6 km; apogee height: 264.4 km; orbital inclination: 42.79 degrees).

China has been monitoring Tiangong-1, Zhu said, adding that the space lab will burn up after entering the atmosphere and the remaining wreckage will fall into a designated area of the sea, without endangering the Earth’s surface.

Aerospace expert Pang Zhihao explained that an international tradition to handle retired large spacecrafts operated at near-earth orbits is to let them fall to an abyssal zone in southern Pacific Ocean far away from the continents.

Being called the “graveyard of spacecraft”, the water was the falling location for Mir space station and Progress spacecraft of Russia, and the Compton Gamma Ray Observatory of the US, Pang added.

http://en.people.cn/n3/2018/0314/c90000-9437070.html


Coincidence? I think not!

200w_d-gif.459351


:enjoy:


______________________________________


Has There Been a Loss of Control?

Where will Tiangong-1 reenter?

How Difficult is it to Accurately Predict a Reentry?

Will objects from this reentry hit me or my property?
:rolleyes:

Since the hasbara boy keeps reposting the same litanies again and again all over the forum, let me reveal the following, confirming my previous assessment:
The Chinese PLA ASAT laser stations seem to have already proceeded with their first in a series to come corrective laser surgical pinpoint accuracy strikes, as shown in the sudden increased decay rate of Tiangong-1 witnessed by the official TLE of March 12!


cool_thumb.gif


tia1-2018-03-17_rder-png.460533

▲ It is clearly visible an anomalous burst from the TLE 18070.1268 (March 11) to 18072.1107 (March 13), 6 consecutive TLEs.

tia1-2018-03-18_mc-png.460534

▲ After the big variation in the decay rate on March 12, the totally controlled reentry is predicted at a slightly earlier date: 2-3 April 2018

screenshot-2018-3-20-satellite-tracker-3d-png.460600

▲ Groundtrack of a very good pass of Tiangong-1 over China's laser stations on 12 March 2018, especially a frontal approach over Tianshan ASAT station!

:enjoy:

Coincidence? I think not!

200w_d-gif.459351
 
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