China Outer Space Science, Technology and Explorations: News & Updates

[Han Patriot]

So no technology is involved in launch of 104 satellie or in Mars mission or any planatory exploration??

Only technology involved is More weight lifting capability right?

Wait, we are going to surpass you guys in that area also.

Nobody is saying there is no technology involved, I am saying there is no advanced technology involved if you compare launching 20 sats or 100 sats. Its the same freaking technology, MULTIPLE SATELLITE LAUNCHING.

 

[MULUBJA]

Nobody is saying there is no technology involved, I am saying there is no advanced technology involved if you compare launching 20 sats or 100 sats. Its the same freaking technology, MULTIPLE SATELLITE LAUNCHING.

Then why others do not do that? you can not do that does not mean it is not advance. People find it difficult to put even a single satellite properly in orbit. You know that. We have put all this satellites at different places and on different time and different elevation. Go and see video and come back when you do that.

 

[Han Patriot]

I think Longmarch-5 will have about another 1-3 times fail launch
New generation rockets will be some bugs at first , eg. Ariane 5 ,Falcon 9, Ariane 5 failed 4 times during its first 14 times lauch

Failure for CZ-5 is understandable, but the other partial failures for matured launchers is not acceptable.

Then why others do not do that? you can not do that does not mean it is not advance. People find it difficult to put even a single satellite properly in orbit. You know that. We have put all this satellites at different places and on different time and different elevation. Go and see video and come back when you do that.

You think Ariane will wait for months collecting and waiting for 100 microsats to launch?

 

[MULUBJA]

Failure for CZ-5 is understandable, but the other partial failures for matured launchers is not acceptable.


You think Ariane will wait for months collecting and waiting for 100 microsats to launch?

From where does alliens come in? Is is taught in CPC reeducation schools?

 

[Han Patriot]

From where does alliens come in? Is is taught in CPC reeducation schools?

Well China is not allowed to launch satellites with any US made components, the only viable comparison is Ariane since they are the largest commercial launcher.

 

[Kapwercs]

Well China is not allowed to launch satellites with any US made components, the only viable comparison is Ariane since they are the largest commercial launcher.

Will China be taking the help of the americans in analyzing the lm5 failure ?

 

[xunzi]

So no technology is involved in launch of 104 satellie or in Mars mission or any planatory exploration??

Only technology involved is More weight lifting capability right?

Wait, we are going to surpass you guys in that area also.

You are correct. In space rocket technology, the different level of technological sophistication relies entirely on the weight lifting capability. Think of a car horse power. What's different between a Honda Civic and a Lamborghini?

Indian launching 104 satellites isn't really that impressive considered the fact the weight you lift up is tiny. We could have launch a thousand satellites in space if there is a market demand for it. But due to geopolitical reason and market competition, that is obviously not possible.

 

[JSCh]

Chinese satellite Zhongxing-9A enters preset orbit
Source: Xinhua| 2017-07-06 13:12:25|Editor: An



BEIJING, July 6 (Xinhua) -- The communications satellite Zhongxing-9A has entered its preset orbit over two weeks after its launch on June 19.

Abnormal performance was identified during the third phase of the Long March-3B launch, which failed to deliver the satellite as planned.

The satellite conducted 10 orbit adjustments with its onboard thrusters and Wednesday reached its preset orbit at 101.4 degrees east longitude over the equator, according to China Aerospace Science and Technology Corporation (CASC) Thursday.

Currently, the satellite's systems are operational and the transponders are on, said the CASC, adding that a series of tests will be carried out.

Zhongxing-9A is the first Chinese-made satellite for live radio and television broadcasts.

An anomaly was found on the carrier rocket's rolling control thruster, part of the attitude control engine, during the third gliding phase, according to an investigation.

The rocket team has also completed a thorough technology analysis and expanded examinations.

 

[Kapwercs]

Chinese satellite Zhongxing-9A enters preset orbit
Source: Xinhua| 2017-07-06 13:12:25|Editor: An



BEIJING, July 6 (Xinhua) -- The communications satellite Zhongxing-9A has entered its preset orbit over two weeks after its launch on June 19.

Abnormal performance was identified during the third phase of the Long March-3B launch, which failed to deliver the satellite as planned.

The satellite conducted 10 orbit adjustments with its onboard thrusters and Wednesday reached its preset orbit at 101.4 degrees east longitude over the equator, according to China Aerospace Science and Technology Corporation (CASC) Thursday.

Currently, the satellite's systems are operational and the transponders are on, said the CASC, adding that a series of tests will be carried out.

Zhongxing-9A is the first Chinese-made satellite for live radio and television broadcasts.

An anomaly was found on the carrier rocket's rolling control thruster, part of the attitude control engine, during the third gliding phase, according to an investigation.

The rocket team has also completed a thorough technology analysis and expanded examinations.

What's the reduction in service life envisaged ?

 

[onebyone]

BEIJING, July 6 (Xinhua) -- The communications satellite Zhongxing-9A has entered its preset orbit over two weeks after its launch on June 19.

Abnormal performance was identified during the third phase of the Long March-3B launch, which failed to deliver the satellite as planned.

The satellite conducted 10 orbit adjustments with its onboard thrusters and Wednesday reached its preset orbit at 101.4 degrees east longitude over the equator, according to China Aerospace Science and Technology Corporation (CASC) Thursday.

Currently, the satellite's systems are operational and the transponders are on, said the CASC, adding that a series of tests will be carried out.

Zhongxing-9A is the first Chinese-made satellite for live radio and television broadcasts.

An anomaly was found on the carrier rocket's rolling control thruster, part of the attitude control engine, during the third gliding phase, according to an investigation.

The rocket team has also completed a thorough technology analysis and expanded examinations.

http://news.xinhuanet.com/english/2017-07/06/c_136422178.htm

 

[Bussard Ramjet]

BEIJING, July 6 (Xinhua) -- The communications satellite Zhongxing-9A has entered its preset orbit over two weeks after its launch on June 19.

Abnormal performance was identified during the third phase of the Long March-3B launch, which failed to deliver the satellite as planned.

The satellite conducted 10 orbit adjustments with its onboard thrusters and Wednesday reached its preset orbit at 101.4 degrees east longitude over the equator, according to China Aerospace Science and Technology Corporation (CASC) Thursday.

Currently, the satellite's systems are operational and the transponders are on, said the CASC, adding that a series of tests will be carried out.

Zhongxing-9A is the first Chinese-made satellite for live radio and television broadcasts.

An anomaly was found on the carrier rocket's rolling control thruster, part of the attitude control engine, during the third gliding phase, according to an investigation.

The rocket team has also completed a thorough technology analysis and expanded examinations.

http://news.xinhuanet.com/english/2017-07/06/c_136422178.htm

Yeah but how much fuel was lost in all these manoeuvers?

How much life was reduced of the satellite?

 

[Pyr0test]

What's the reduction in service life envisaged ?

8-10 years

 

[SEAISI]

Yeah but how much fuel was lost in all these manoeuvers?

How much life was reduced of the satellite?

No one knows except the Chinese.

I would ask the question: "Would you have a non-functional satellite that drifts in space for years or a functional one that has a reduced lifespan (eg. 1/3 of its original designed life of 15 years)?"

 

[Kapwercs]

Zhongxing-9A is the first Chinese-made satellite for live radio and television broadcasts.

Is this a fact ?

Also a Chinese guy in another thread says life will be reduced by 10 years.

 

[Pyr0test]

Also a Chinese guy in another thread says life will be reduced by 10 years.

The original designed life for the satellite is 15 years. During that 15 years ~750m/s worth of fuel is required for station keeping. According to folks at nasaspaceflight 540m/s second worth of fuel is required to get it to the correct orbit which leaves 210m/s worth of fuel left or around 5 years.

it might last longer, but who knows