China announces success of Chang'e-2 lunar probe mission

[Markus]

Are u out of u r MIND???
Didn't u hear Chandrayaan 1 probe,the nearest probe till now in 2008???
And India has its flag on moon..
This chinese mission is a probe,not a manned mission....
India will launch Chandrayaan 2 in 2012,with a Robotic Rover....
U lack some important knowledge..
It's not India catch up china,it's china should catch up india..
India's flag lands on Moon - Wikinews, the free news source
and wat about Chandrayaan finding of water on moon..
Chandrayaan-1 finds water on moon - report | Reuters

Dude, I know what I am saying.

India has sent up one mission and this is the second one for China.

So, in terms of numbers, India will catch in 2012/13, thats when our second mission is supposed to be launched.

 

[Martian2]

Are u out of u r MIND???
Didn't u hear Chandrayaan 1 probe,the nearest probe till now in 2008???
And India has its flag on moon..
This chinese mission is a probe,not a manned mission....
India will launch Chandrayaan 2 in 2012,with a Robotic Rover....
U lack some important knowledge..
It's not India catch up china,it's china should catch up india..
India's flag lands on Moon - Wikinews, the free news source
and wat about Chandrayaan finding of water on moon..
Chandrayaan-1 finds water on moon - report | Reuters

I would not have discussed the following three factual points if you had not made an issue of them.

Firstly, China's Chang'e I was launched on October 24, 2007. India's Chandrayaan-1 was launched a year later on October 28, 2008.

Secondly, you have to compare apples to apples and oranges to oranges. All of the instruments on Chang'e I were indigenous. However, the majority of the instruments on board Chandrayaan-1 were foreign.

Chandrayaan-1 - Wikipedia, the free encyclopedia
"The lunar mission carries five ISRO payloads and six payloads from other space agencies including NASA, ESA, and the Bulgarian Aerospace Agency, which were carried free of cost.[15]"

Thirdly, you can't really claim credit for discovering water on the moon. That discovery is credited to a NASA instrument.

SPACE.com -- Tons of Water Ice Found on the Moon's North Pole
"Mar 1, 2010 ... A NASA radar instrument on an Indian moon probe found evidence of at least 600 million metric tons of water ice spread out on the bottom of ..."

In conclusion, it is a fact that China's space program, manned or unmanned, is far more advanced than India's. This is not surprising because China's economy is four times bigger than India's and the Chinese space agency has far more resources.

However, it is incorrect to claim that India is ahead of China in space exploration. You can only make that claim if there are facts to support that proposition. Currently and in the near future, I do not believe that you can make such a claim.

 

[Martian2]

I've been debating whether I should mention this last important distinction between Chang'e I and Chandrayaan-1. Do facts outweigh political correctness? For those that are interested in historical facts, I will post it.

However, I intend to stay out of future China-India comparisons. I should not have become involved in this one. China-India comparisons are inherently mismatched and the outcome is predictable.

Here is the final critical difference between the Chang'e I and Chandrayaan-1 outcomes. Chang'e I performed fully as expected. In contrast, Chandrayaan-1's mission was terminated early.

ISRO admits miscalculation of moon temperature led to Chandrayaan''s early termination | TopNews

"ISRO admits miscalculation of moon temperature led to Chandrayaan''s early termination
Submitted by Sahil Nagpal on Mon, 09/07/2009 - 14:53

Bangalore, Sep. 7 : A senior official at the Indian Space Research Organisation (ISRO) has candidly admitted that scientists miscalculated the temperature of the moon and that this had led to the early termination of the Chandrayaan-I mission last month.

Dr T K Alex, director, ISRO Satellite Centre, Bangalore, said: "We assumed that the temperature at 100km above the Moon''s surface would be around 75 degrees Celsius. However, it was more than 75 degrees and problems started to surface. We had to raise the orbit to 200km."

In May, ISRO said it had raised Chandrayaan''s orbit to "enable further studies on orbit perturbations, gravitational field variation of the Moon and also enable imaging of the lunar surface with a wider swath".

It now transpires that heating problems on the craft had begun as early as November 25, 2008, forcing ISRO to deactivate some of the payloads - there were 11 in all.

As a result, some of the experiments could not be carried out which raised questions on whether the pre-launch thermal vacuum test done on the spacecraft at the ISRO Satellite Centre in Bangalore was adequate.

In early 2009, the situation improved and Chandrayaan-1 started operating normally. However, the snags resurfaced. This time with the two star sensors of Chandrayaan because of high temperature. The sensors are crucial in determining the orientation of the craft in space.

The first star sensor packed up on April 26, and even the back-up sensor failed during the second week of May.

ISRO officials said scientists and engineers used ingenious ways to restore Chandrayaan-I by using gyroscopes as a temporary step.

The official said much before the official announcement of the project''s end on August 30, it had become clear that the two-year mission would be cut short since 95 percent of the scientific goals had been accomplished.

Although, ISRO claims that 95% of its planned experiments have been completed, it remains to be known whether payloads designed to operate at a 100-km orbit completed their missions. The issue has triggered a fierce debate on whether ISRO should have declared it a one-year mission right at the beginning rather than an ambitious two-year programme. (ANI)"

 

[qwerrty]

china should catch up to indians in making substandard moon-spacecraft.

everyone knows how their moon probe started falling apart from the beginning to the end. because of NASA magically saves india's face at the end they somehow forgotten everything and declaring everything were success, as usual. like you see with the 'commonwealth games'..lol

 

[Kinetic]

1.3m for the first image I posted and 7m for the second and third.

Thanks.

Dude, I know what I am saying.

India has sent up one mission and this is the second one for China.

So, in terms of numbers, India will catch in 2012/13, thats when our second mission is supposed to be launched.

Dude you are miscalculating because that China did with Change 2 India did better with Chandrayaan-1. Check the payload and other related areas. So no need to compare.

Chandrayaan 2 is a robotic probe.

 

[Kinetic]

I would not have discussed the following three factual points if you had not made an issue of them.

Firstly, China's Chang'e I was launched on October 24, 2007. India's Chandrayaan-1 was launched a year later on October 28, 2008.

Secondly, you have to compare apples to apples and oranges to oranges. All of the instruments on Chang'e I were indigenous. However, the majority of the instruments on board Chandrayaan-1 were foreign.

Chandrayaan-1 - Wikipedia, the free encyclopedia
"The lunar mission carries five ISRO payloads and six payloads from other space agencies including NASA, ESA, and the Bulgarian Aerospace Agency, which were carried free of cost.[15]"

Thirdly, you can't really claim credit for discovering water on the moon. That discovery is credited to a NASA instrument.

SPACE.com -- Tons of Water Ice Found on the Moon's North Pole
"Mar 1, 2010 ... A NASA radar instrument on an Indian moon probe found evidence of at least 600 million metric tons of water ice spread out on the bottom of ..."

In conclusion, it is a fact that China's space program, manned or unmanned, is far more advanced than India's. This is not surprising because China's economy is four times bigger than India's and the Chinese space agency has far more resources.

However, it is incorrect to claim that India is ahead of China in space exploration. You can only make that claim if there are facts to support that proposition. Currently and in the near future, I do not believe that you can make such a claim.

Learn the factS before posting.

China went for 100 km orbit in second mission while India already did it.

India sent a MIP on the Moon China yet to do it.

Payloads on Chandrayaan-1 were much more advanced than Change 2.

Chandrayan 1 also did many discoveries including evidance of water and other resources on the Moon.

 

[Markus]

Thanks.


Dude you are miscalculating because hat China did with Change 2 India did better with Chandrayaan-1. Check the payload and other related areas. So no need to compare.

I am not comparing at all.

India is planning to send her second mission in 2012/13, thats what I said earlier.

 

[Kinetic]

I am not comparing at all.

India is planning to send her second mission in 2012/13, thats what I said earlier.

Yeah but we can talk about Chandrayaan 2 with Change 3 because they are similar while Chandrayaan 1 is superior to Change 1 ad Change 2 in terms of payloads, scientific instruments and experiments.

The Chandrayaan 2 spacecraft fired a moon impact probe carrying an Indian tricolor national flag down to the surface of the Moon, that made India fourth country in the world.

 

[qwerrty]

China went for 100 km orbit in second mission while India already did it.

the probe had to raise to 200~250 km because many components got fried at 100 km.

probe dead in less than 1 year..moon mapping was incomplete and some completed part were not meant to be taken from intended orbit...failed!

India sent a MIP on the Moon China yet to do it.

must be very complicate dropping stuff free fall into the moon surface..

Payloads on Chandrayaan-1 were much more advanced than Change 2.

no deny, americans components on board were advanced..

Chandrayan 1 also did many discoveries including evidance of water and other resources on the Moon.

thanks to NASA......no NASA people & equipments to tell you what those things you've found idians woundn't have a clue.

Chandrayaan 2 is a robotic probe.

russian lander(most complicate in this mission) & big russian robot + very tiny indian robot.

 

[siegecrossbow]

Chandrayan 1 was launched a year after Chang'e 1, I thought.

 

[Nomenclature]

China went for 100 km orbit in second mission while India already did it.

Yes, Chandrayaan-1 went closer to the moon than Chang'e 1, but China's second mission went much closer still.

Periapsis of Chang'e 1 orbit: 200km

Periapsis of Chandrayaan-1 orbit: 100km

Periapsis of Chang'e 2 orbit: 15km

 

[CardSharp]

I would not have discussed the following three factual points if you had not made an issue of them.

Firstly, China's Chang'e I was launched on October 24, 2007. India's Chandrayaan-1 was launched a year later on October 28, 2008.

Secondly, you have to compare apples to apples and oranges to oranges. All of the instruments on Chang'e I were indigenous. However, the majority of the instruments on board Chandrayaan-1 were foreign.

Chandrayaan-1 - Wikipedia, the free encyclopedia
"The lunar mission carries five ISRO payloads and six payloads from other space agencies including NASA, ESA, and the Bulgarian Aerospace Agency, which were carried free of cost.[15]"

Thirdly, you can't really claim credit for discovering water on the moon. That discovery is credited to a NASA instrument.

SPACE.com -- Tons of Water Ice Found on the Moon's North Pole
"Mar 1, 2010 ... A NASA radar instrument on an Indian moon probe found evidence of at least 600 million metric tons of water ice spread out on the bottom of ..."

In conclusion, it is a fact that China's space program, manned or unmanned, is far more advanced than India's. This is not surprising because China's economy is four times bigger than India's and the Chinese space agency has far more resources.

However, it is incorrect to claim that India is ahead of China in space exploration. You can only make that claim if there are facts to support that proposition. Currently and in the near future, I do not believe that you can make such a claim.

You are arguing with the online equivalent of a brick.

 

[Martian2]

You are arguing with the online equivalent of a brick.

The brick is immovable. My effort is futile. I know when to desist.

 

[Brotherhood]

5 landing sites pre-selected for Chang'e-3 lunar probe - People's Daily OnlineNovember 24, 2010

An event titled "Science and the Media Dialogue - Lunar Exploration of the Chang'e-2 satellite" was held by the China Association for Science and Technology (CAST) and other units on Nov. 23.

The experts who attend the meeting said the current Chang'e-3, Chang'e-4 lunar probes have entered the prototype development phase, the Sinus Iridum is one of the five proposed landing sites for Chang' e-3.

Yu Dengyun, deputy chief designer of China's lunar exploration project, said that the landing sites selection for the second lunar exploration project should consider scientific, security, monitoring and innovation factors. Of the five new proposed candidate sites, Sinus Iridum is still the first choice.

By Yan Meng, People's Daily Online

 

[Martian2]

Parts of Chang'e II - People's Daily Online

This undated photo shows the 490N engine monitor camera carried aboard Chang'e II, China's second unmanned lunar probe. China launched Chang'e II on Oct. 1, 2010. (Xinhua)

This undated photo shows the laser altimeter carried aboard Chang'e II, China's second unmanned lunar probe. China launched Chang'e II on Oct. 1, 2010. (Xinhua)

This undated photo shows the CCD Stereo Camera carried aboard Chang'e II, China's second unmanned lunar probe. China launched Chang'e II on Oct. 1, 2010. (Xinhua)

This undated photo shows the X-ray spectrometer system carried aboard Chang'e II, China's second unmanned lunar probe. China launched Chang'e II on Oct. 1, 2010. (Xinhua)

This undated photo shows the TT&C (telemetry, track, and command) omnidirectional antenna for Chang'e II, China's second unmanned lunar probe. China launched Chang'e II on Oct. 1, 2010. (Xinhua)

This undated photo shows miscellaneous equipment, developed by Beijing Institute of Control Engineering, for Chang'e II, China's second unmanned lunar probe. China launched Chang'e II on Oct. 1, 2010. (Xinhua)