Questions tagged [tiangong-1]

For questions specifically about the Chinese Tiangong-1 space laboratory, which was launched in 2011.

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Detailed radar imaging of Tiangong-1; how do they do that?

@JamesPoulose's answer shows an advanced radar image of Tiangong-1, 270 km from the Earth's surface. The images was sourced from Space.com's How Was China's Tiangong-1 Space Station Crash Tracked So ...
uhoh's user avatar
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Why Celestrak has Archived TLEs for most space stations from Russia and the US, but not Tiangong-1, Tiangong-2 or Skylab?

Thinking about this question, I wanted to look at historical data. Then I noticed that while Celestrak does provide Archived TLE data for Salyut 7, Mir, Kvant-1, Kvant-2, Kristallm, Spektr, Priroda, ...
uhoh's user avatar
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Is there real footage of Tiangong 1 reentry?

There are a couple of videos on the net showing some reentries and claiming them to be Tiangong 1. Is any of them authentic? I could not find any footage on the websites of the major space agencies (...
Everyday Astronaut's user avatar
2 votes
1 answer
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Where on Earth can one view the entry of tiangong-1?

I read a news article saying that the entry would be "spectacular" where and when can I view the entry. Will it be visible in the US?
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3 answers
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Why are Tiangong-1's Apogee and Perigee Graphs Wobbly?

The apogee and perigee graph of the Tiangong-1 space station, about to re-enter and break up Real Soon Now, is depicted in this graph (source: Wikipedia): Why are the graphs wobbly? Is it because the ...
Jens's user avatar
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4 votes
3 answers
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What is used to monitor objects burning up in the atmosphere on descent?

Tiangong 1 is expected to fall out of orbit and burn up somewhere this weekend. On March 12, 2018 people all over Western Washington State reported a flash and loud boom which is believed to be a ...
Dan Sorensen's user avatar
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3 votes
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Where to stream online Tiangong 1 descent?

Are there going to be good free live streams of the descent and if so is there much to be seen anyway?
Nikolai Frolov's user avatar
5 votes
2 answers
567 views

Did Tiangong-1 turn the engines on?

The following graph shows the Tiangong-1 radius vector at the perigee, semi-major axis and apogee (scaled to 6371 km just to show an approximate altitude) and its orbit eccentricity: I used the SGP4 ...
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4 votes
2 answers
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PSLV-C39/IRNSS-1H TLE accuracy

The TLEs accuracy for PSLV-C39/IRNSS-1H seems low when compared to that of the other LEO satellites (ISS, HST, Tiangong, Sfera 2, ...). Look, for example, at the following graph that shows the radius ...
Cristiano's user avatar
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Tiangong-1 reentry

I’m trying to understand what could happen when the Tiangong-1 will reenter the atmosphere (probably on march 2018). Starting from an initial state obtained from a TLE, I integrate the position and ...
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Why does N2YO list Tiangong 1 as an ISS satellite? Is it just a mistake? yes/no?

The page http://www.n2yo.com/satellites/?c=2 which lists "ISS SATELLITES" includes Tiangong 1. Since it looks to me like all of the other objects are associated with ISS, and Tiangong 1 is a different ...
uhoh's user avatar
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16 votes
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Do we have any idea when Tiangong-1 will deorbit?

In March 2016 China's Manned Space Engineering Office announced that all Tiangong-1 telemetry had failed leaving no ability to safely control the space station's decent. With what we know about the ...
Lumberjack's user avatar
7 votes
1 answer
236 views

Will Earth, ISS, or Tiangong be the first habitat closest to Juno during Earth Flyby 2013?

Just a fun question (+: Juno is approaching Earth for a gravity assist on her way to Jupiter. Her approach will bring her, at the nearest point, a mere 559KM above Earth's surface. ISS orbits just ...
Everyone's user avatar
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8 votes
1 answer
461 views

Cargo delivery from the ISS to Tiangong

Consider I have a 10 kg object I want to deliver from the ISS to Tiangong-1 station. The object can not go through the land and launch again cycle. Can any of the present day spacecrafts do the ...
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