China Space Military：Recon, Satcom, Navi, ASAT/BMD, Orbital Vehicle, SLV, etc.

[JSCh]

Is it the 3rd launch in 10 days?

Yes. Also less than 48 hrs from the last launch from Jiuquan launch center.

 

[onebyone]

November 20 - CZ-3B/G2 - XSLC - TL-1 Tianlian-1 (4)

China Successfully Launches Yunhai-1(01) Satellite for Environment Monitor

 

[JSCh]

Monday, November 14, 2016, 11:24
Astronauts grow lettuce in space lab
By Cheng Yingqi in Beijing

Astronaut Jing Haipeng shows lettuce growing in the Tiangong II space lab on Friday. (Photo / Xinhua)​

One of the most impressive parts of the movie The Martian is when the lead character - an astronaut stranded on Mars after his team assumed him dead - succeeds at growing potatoes to keep himself alive while waiting to be rescued.

Now, Chinese scientists are testing the idea by attempting to grow vegetables in the Tiangong II space lab.

"If people live on Mars someday, they will need to grow grain and vegetables there," said Zheng Huiqiong, a researcher at the Chinese Academy of Sciences' Institute of Plant Physiology and Ecology in Shanghai.

"On Earth, 95 percent of the energy that keeps humans and animals alive is provided by plants, which transfer solar energy to chemically stored energy. So, as long as you can grow plants, you can live wherever you want in space, as plants are the only means to transfer the sun's energy," Zheng said.

The plant chosen for the Tiangong II space lab experiment is lettuce.

Wang Longji, an associate researcher at the Astronaut Center of China, said one main reason for choosing lettuce was its 30-day growth cycle, which suits the duration of the task.

Tiangong II was launched in mid-September to replace the Tiangong I space lab, which retired in March. On Oct 19, Tiangong II docked with the Shenzhou XI manned spaceship carrying two astronauts for a 30-day stay.

The astronauts started the plant-growing experiment on the second day after docking. They first set up a culture system composed of small plastic units. After watering the units and planting seeds, they covered the surface with plastic wrap.

"On entering the space lab on the fifth morning, we found the seeds had germinated. We were happy, so we took a lot of photos and informed ground staff," said Jing Haipeng, commander of the mission.

Red wave lettuce has been cultivated on the International Space Station, and NASA released a video of US and Japanese astronauts eating the space-grown lettuce in August last year.

 

[JSCh]

XiChang Satellite launch center, Long March 3C get ready for launch.

 

[K210]

ISRO own website says 8t LEO, you know more than them? Ok your gslv-3 is much better than ours, your space program is miles ahead, all right? satisfied ?

It is 8 tons to 620km high circular LEO while long march five is 25 tons to 200 km by 400 km eplitical LEO. They are not the same it takes more delta v to place at 620km than it does at 200-400 km. If long march 5 launched into 620km high orbit its capablity would be somewhere between 10 - 15 tons.

Besides MK-3 is in its base config which should have been flown back in 2012 but was delayed due to problems with ISRO's MK-2 rocket. Once the weakass engines in the core are replaced the rocket can do 6.5 ton GTO and around 15 ton LEO so not that much behind long march 5

 

[onebyone]

Landing of Shenzhou 11 is reported for Friday Nov. 18th between 05:33 - 06:13 UTC (00:33 - 01:13 EST / 13:33 - 14:13 Beijing time)

https://twitter.com/x/status/798807009063636992

 

[lonelyman]

It is 8 tons to 620km high circular LEO while long march five is 25 tons to 200 km by 400 km eplitical LEO. They are not the same it takes more delta v to place at 620km than it does at 200-400 km. If long march 5 launched into 620km high orbit its capablity would be somewhere between 10 - 15 tons.

Besides MK-3 is in its base config which should have been flown back in 2012 but was delayed due to problems with ISRO's MK-2 rocket. Once the weakass engines in the core are replaced the rocket can do 6.5 ton GTO and around 15 ton LEO so not that much behind long march 5

Bullshit, u Indians only good at boasting things on PowerPoint. Let's compare GTO then, ours 14t, your non existent gslv3 4t, got it?

 

[K210]

Bullshit, u Indians only good at boasting things on PowerPoint. Let's compare GTO then, ours 14t, your non existent gslv3 4t, got it?

GSLV MK-3 non-existent? Are you aware that it has already flown in suborbital config?

 

[lonelyman]

GSLV MK-3 non-existent? Are you aware that it has already flown in suborbital config?

Bullshit, missing the critical cryogenic engine Indians boasting for years, which China flied 32 years ago on long march 3 in 1984

 

[Nan Yang]

It is 8 tons to 620km high circular LEO

Really ?

Can you enlighten us with a source of this claim?

 

[K210]

Bullshit, missing the critical cryogenic engine Indians boasting for years, which China flied 32 years ago on long march 3 in 1984

Your YF-73 engine that flew in 84 was a gas generator design. Such design is childs play compared to stage combustion cycle that ISRO's CE-7.5 uses.

YF-73 specific impulse: 420 seconds

CE-7.5 specific impulse: 452 seconds

Really ?

Can you enlighten us with a source of this claim?

Look at wikipedia or ISRO's site

 

[Akasa]

The parameters of the two rockets aren't difficult to find.

The GSLV MK. 3 can send a 10 ton satellite to a 200 km orbit at 45 degree inclination. Source: http://www.spacelaunchreport.com/gslvmk3.html

In terms of cryogenic engines, the Chinese are fielding (or very close to fielding) the YF-73 (44 kN), YF-75 (78.45 kN), YF-75D (88 kN), YF-50t (700 kN), and YF-77 (700 kN). The maiden LM-5 rocket used a YF-77 core stage and a YF-75D upper stage. Note that the mentioned thrusts are vacuum thrusts.

India's CE-7.5 and CE-20 produce 74 kN and 200 kN, respectively. The latter would most likely be tested this year aboard the GSLV MK3's first orbital launch in December.

 

[Beast]

It is 8 tons to 620km high circular LEO while long march five is 25 tons to 200 km by 400 km eplitical LEO. They are not the same it takes more delta v to place at 620km than it does at 200-400 km. If long march 5 launched into 620km high orbit its capablity would be somewhere between 10 - 15 tons.

Besides MK-3 is in its base config which should have been flown back in 2012 but was delayed due to problems with ISRO's MK-2 rocket. Once the weakass engines in the core are replaced the rocket can do 6.5 ton GTO and around 15 ton LEO so not that much behind long march 5

Is there such thing called high circular 620km LEO? Space lifting capacity is place according to 2 catergory LEO, GTO. I never heard high circular LEO. you don't make up another type and confuse us.

 

[Nan Yang]

Is there such thing called high circular 620km LEO? Space lifting capacity is place according to 2 catergory LEO, GTO. I never heard high circular LEO. you don't make up another type and confuse us.

If you go to ISRO website, they have a sub-GTO orbit too. What is a sub-GTO orbit?

 

[Han Patriot]

Your YF-73 engine that flew in 84 was a gas generator design. Such design is childs play compared to stage combustion cycle that ISRO's CE-7.5 uses.

YF-73 specific impulse: 420 seconds

CE-7.5 specific impulse: 452 seconds



Look at wikipedia or ISRO's site

Funny how the advanced Indian staged combustion (cough* Russsian cyro copy) is not use in GSLV mk iii? But instead a gas generator CE-20 had to be used ...LOL

OOO i checked further, this engine was only successfully flown in 2014, I wonder how many flight it had taken. One year later our YF-100 which is 20 times more powerful and also a staged combustion was flown.

And now the Indians are busy developing LESS ADVANCED gas generator CE-20...what a joke. The point is YOU NEED TO HAVE BOTH !