Tag: China

Cause of Long March 5 July failure is in “first-stage propulsion”

8:21 pm

In an interview earlier this week a Chinese official revealed that the problem during the July Long March 5 launch was related to an issue with “first-stage propulsion.”

The official only added that the investigation is “on-going” and that they intend to fix the problem because the Long March 5 is needed for China’s human and deep space programs.

The vagueness here suggests to me the possibility of some very fundamental problems that might be requiring a major redesign. That is a pure guess, however, and should not be taken very seriously.

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China’s first test space station, Tiangong-1, is out-of-control

4:00 pm

The orbit of China’s first test space station, Tiangong-1, is quickly decaying and the station is shut down with no way to bring it down in a controlled manner.

The Chinese space station is accelerating its fall towards us and will reach the ground in the coming months, Harvard astrophysicist Jonathan McDowell told the Guardian. It is decaying quickly and he expects “expect it will come down a few months from now – late 2017 or early 2018”, he told the paper.

The Tiangong 1 station was launched in 2011 as one of the great hopes of the Chinese ambitions in space, and as part of a plan to show itself off as a global superpower. The country’s space agency referred to the station as the “Heavenly Palace” and conducted a range of missions, some of which included astronauts.

But last year scientists at Chinese’s CNSA space agency said that they had lost control of the lab, and that it would now be heading towards Earth. That put an end to months of speculation, as experts watching the path of the station suggested that it had been behaving strangely.

As with many other similar objects coming down from orbit, the odds of any pieces hitting anyone is quite small. Still, China is a signatory to the Outer Space Treaty, and that makes them liable for any damage done by their spacecraft when they return to Earth.

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First discoveries from China’s FAST radio telescope

8:58 am

Astronomers using China’s new FAST radio telescope have announced its first discoveries, the identification of two pulsars,

The new pulsars PSR J1859-01 and PSR J1931-02, also referred to as FAST pulsar #1 and #2 (FP1 and FP2), were detected on August 22 and 25, and were confirmed by the Parkes telescope in Australia on September 10. “FP1 is a pulsar with a spin period of 1.83 second and an estimated distance of 16 thousand light-years, and FP2, is a pulsar with a spin period of 0.59 second and an estimated distance of 4,100 light years,” said Li Di, Deputy Chief Engineer of FAST Project at the National Astronomical Observatories (NAOC), on Tuesday.

FAST’s gigantic size will allow it to pinpoint many similar astronomical objects previously beyond the resolution of radio telescopes.

Note that there is still no word on whether China has found a scientist to head FAST operations.

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Egypt announces creation of space agency

9:26 am

The new colonial movement: The Egyptian government today voted to create an Egyptian space agency with the goal of encouraging the development of a home-based satellite industry.

The ruling by the Council of Ministers will now pass on to the Egyptian parliament for final agreement and made into law. Minister Abdel Ghaffar also said that Egypt intends create a satellite manufacturing centre in 2019, and then launch Egypt’s first indigenously made satellite in 2020.

This satellite is now dubbed Misr Sat 2, previously known as EgyptSat-2, and will be designed and manufactured at Space City, located in New Cairo. Space City is a one hundred acre plot of land where satellite manufacturing and other space facilities are being built. Misr Sat-2 is to be partly funded by China to the tune of U.S.$45 million after a Memorandum of Understanding was signed between Egypt’s President Abdel Fattah El-Sisi and China’s President Xi Jinping on the sidelines of the BRICS Summit held in Xiamen, China, earlier in September 2017.

This project is linked to larger aid from China, and appears to be prompted by this Chinese aid.

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Chinese government orders shutdown of all North Korean businesses

8:39 am

The Chinese government has ordered that all businesses run by North Koreans, whether singly or in a joint partnership, must shut down within the next four months.

The order applies to all such businesses in China, as well as any Chinese/North Korean joint ventures abroad. It will exempt nonprofits and “noncommercial infrastructure projects,” whatever that is, and will also allow individual businesses to request a waiver.

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Long March 5 failure to delay Chinese lunar probes and space station

12:46 pm

The July launch failure of China’s largest rocket, Long March 5, is going to cause delays to both its lunar and space station programs.

They have not yet finished their investigation into the failure, and are now admitting that the launch of Chang’e-5, a lunar sample return mission, will not occur this year as planned, and that the launch of their space station core module will be delayed into 2019.

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Chinese banks cease all business with North Korea

10:39 am

China’s central bank has ordered all Chinese banks to stop all business with North Korea.

Chinese banks have come under scrutiny for their role as a conduit for funds flowing to and from China’s increasingly isolated neighbor. The sources said banks were told to stop providing financial services to new North Korean customers and to wind down loans with existing customers, following tighter sanctions against Pyongyang by the United Nations. The sources said lenders were asked to fully implement United Nations sanctions against North Korea and were warned of the economic losses and reputational risks if they did not do so.

Chinese banks received the document on Monday, the sources said.

It appears that this order only effects new business with North Koreans, which means it can be gotten around, and is somewhat meaningless. At the same time, it appears that China’s is slowly stepping up its pressure on North Korea, which is a good thing.

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China successfully completes third robotic docking

9:05 pm

China’s Tianzhou-1 test cargo freighter successfully completed its third docking with the prototype test space station module Tiangong-2 today.

Commands for the rendezvous and docking were issued at 17:24 Beijing time, according to the China Manned Space Agency, with the new ‘fast’ process taking 6.5 hours to complete.

Previously the rendezvous and docking process took around two days, or 30 orbits. The breakthrough will be used to allow crewed Shenzhou craft to reach the future Chinese Space Station (CSS) much sooner after launch.

Tianzhou-1 will soon perform a third and final refuelling test with Tiangong-2, before the cargo spacecraft is carefully deorbited over the South Pacific.

No word yet on when China might resume launches however. Since the July launch failure of their largest rocket, Long March 5, the country has launched nothing. There have also been stories that suggest the planned December launch of their Chang’e 5 lunar mission will be delayed now until the spring.

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Russia and China both condemn North Korea’s nuclear test

9:37 pm

Has the veil finally lifted from their eyes? The leaders of both Russia and China on Sunday agreed to work together to deal with the threat of a North Korea with nuclear weapons and ICBMs, with China strongly condemning North Korea.

It appears that these nations have suddenly realized that a North Korea with nuclear weapons and missiles capable of delivering those weapons anywhere on the globe is not merely a threat to the U.S., it also poses a threat to them. It is a shame that it took so long for this basic and obvious fact to sink in.

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Building launch backlog in China

8:33 am

The two launch failures in June and July experienced by China has forced an extended pause in rocket launches, resulting in an increasing launch backlog.

The main contractor for the Chinese space programme, the China Aerospace Science and Technology Corporation (CASC), had announced plans for a national record of close to 30 launches this year, but recent failures have halted progress, putting pressure on an increasingly intense schedule.

There have been no launches since the high profile failure of the second flight of China’s largest rocket, the Long March 5, on July 2. Preceding that, a Long March 3B, used for launches to geosynchronous and medium Earth orbits, left the Zhongxing-9A telecommunications satellite in a much lower than intended orbit. This partial failure has apparently hit the schedule for launches of China’s Beidou navigation satellites, while two more launch vehicles – the Long March 2D and 4C – also suffered issues last time out.

The Chinese launch calendar typically sees the vast majority of its activity in the second half of the year, and this will need to be the case once again to prevent a large mission backlog. China was looking to launch 6-8 new satellites for its own version of the GPS constellation, starting in July, but it is unclear if the first pair, Beidou-3M3 and Beidou-3M4, will be ready for launch from Xichang in mountainous Sichuan Province.

Right now China has only completed 7 launches in 2017. The article also notes that further launches might be delayed for political reasons:

With the 19th National Congress of the Communist Party of China, a major political event that will see a once-every-five-years reshuffle of the country’s leadership, set for October, it is likely that unnecessary risks – particularly regarding a space programme regarded as a source of national pride and prestige – will be avoided.

What this article indicates is that China is undergoing the same kind of launch pressures experienced by Russia and SpaceX. Rocket science is hard, but the benefits are so great that it forces those involved to solve the problems. I expect we shall see China resume launches, at a fast pace, sometime after October.

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Russia and China to team up to explore Moon?

1:19 pm

Russia and China appear ready to sign a cooperative agreement involving the joint exploration of the Moon from 2018 to 2022.

The deal is expected to be signed this October and will bring significant benefits to both nations, particularly in manned and future missions to the moon….

The bilateral agreement will cover five areas including lunar and deep space exploration, developing special materials, collaboration in the area of satellite systems, Earth remote sensing, and space debris research.

No details yet. Moreover, the deal itself has not yet been signed, so this might all vanish into the ether. It does appear however that Russia’s financial problems are forcing it to partner with others, and China presently has a very sophisticated but inexperienced space program and lots of cash. Russia’s experience would be a great help to China, until they don’t need it anymore. Thus, the logic of the agreement.

Posted from the lobby of the Swiftcurrent hotel at the Many Glacier area of Glacier National Park. Diane completed a 10 mile hike today early, so we have the afternoon to relax. Tomorrow we make the long drive south to Capital Reef.

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Chinese engineers and astronomers fight over new telescope design

9:10 am

A dispute over the design of a new Chinese optical telescope has broken out between the astronomers who will use it and the engineers who will build it.

In April, an international committee convened by [Chinese Academy of Science’s] Center for Astronomical Mega-Science, which is responsible for the project, reviewed the competing designs and recommended the three-mirror option [the preference of astronomer Jiansheng Chen and China’s astronomers]. On 10 July, [Xiangqun Cui, the instrument’s chief engineer] organized her own review committee that picked the SYZ design as better. Cui’s panel “leaned toward one side,” Chen says. And one member says that the three-mirror design was not sufficiently presented, partly because no one from the Huazhong team was there. Cui and Su explain in their open letter that a member of their own group who knows it well introduced the Huazhong design. “Members were repeatedly reminded they could abstain from voting,” they write. One-third of the 21 committee members did abstain.

Meanwhile, to date, more than 130 young astronomers have signed an open letter to the astronomical community urging that the recommendations of the international panel be respected.

The fundamental disagreement, according to Chen, is “whether a large science project should be technically or scientifically oriented.” Cui and Su say the choice is between incorporating “rapidly developing new technologies” that ensure a long life for the facility, or “simply replicating a 10-meter telescope built 30 years ago.”

This spat reinforces the impression gained from the recent other story about China’s inability to find a manager for its newly built radio telescope. Its top-down management approach (where decisions are made by well-connected powerful bureaucrats at the top of the chain of command) produces office politics that generally does not lead to good technical decisions.

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China admits it will do nothing to stop North Korea from attacking US

10:25 am

In an official editorial, China has admitted that it will do nothing to stop North Korea from using missiles to attack the US territory of Guam.

Beijing is not able to persuade Washington or Pyongyang to back down at this time. It needs to make clear its stance to all sides and make them understand that when their actions jeopardize China’s interests, China will respond with a firm hand.

China should also make clear that if North Korea launches missiles that threaten US soil first and the US retaliates, China will stay neutral. If the US and South Korea carry out strikes and try to overthrow the North Korean regime and change the political pattern of the Korean Peninsula, China will prevent them from doing so.

In other words, China will not stop North Korea from carrying out its attacks, but if it does so China will also not do anything if the U.S. responds.

The editorial is intellectually dishonest however. It also states,

The real danger is that such a reckless game may lead to miscalculations and a strategic “war.” That is to say, neither Washington nor Pyongyang really wants war, but a war could break out anyway as they do not have the experience of putting such an extreme game under control. [emphasis mine]

The highlighted words are simply wrong. It has been very clear now for several years that North Korea is eager for war, and has been doing everything it can to instigate a conflict.

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China has a giant radio telescope and no one to run it

9:04 am

China’s effort to become a major player in the astronomy and space exploration field has run up against a strange problem.

China has built a staggeringly large instrument in the remote southern, mountainous region of the country called the Five hundred-meter Aperture Spherical Telescope, or FAST. The telescope measures nearly twice as large as the closest comparable facility in the world, the US-operated Arecibo radio telescope in Puerto Rico. Radio telescopes use a large, parabolic dish to collect radio waves from distant sources, such as pulsars and black holes—or even alien civilizations.

According to the South China Morning Post, the country is looking for a foreigner to run the observatory because no Chinese astronomer has the experience of running a facility of such size and complexity. The Chinese Academy of Sciences began advertising the position in western journals and job postings in May, but so far there have been no qualified applicants.

Part of the problem here is that it appears the telescope was built by order of the Chinese government, not Chinese astronomers. It would have been better for China to have built something its own astronomers were qualified to run. Instead, they built something to impress the world, and now can’t find a way to use it.

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China punishes more than 500 scientists for peer review fraud

8:51 am

An investigation in China has revealed peer review fraud in more than 100 papers, causing that nation to discipline more than 500 researchers.

MOST’s 27 July announcement marked the culmination of an investigation into the mass retraction this past April of 107 papers by Chinese authors that appeared in a single journal, “Tumor Biology.” The papers, published between 2012 and 2016, were pulled after editors found “strong reason to believe that the peer review process was compromised,” Editor-in-Chief Torgny Stigbrand, of Umeå University in Sweden, wrote on 20 April on the website of the publisher Springer. (Springer, an arm of Springer Nature, published “Tumor Biology” until December 2016; the journal is now operated by SAGE Publications.)

Investigators say the authors engaged in an all-too-common scam. “Tumor Biology” allowed submitting authors to nominate reviewers. The Chinese authors suggested “experts” and provided email addresses that routed messages from the journal back to the researchers themselves, or to accomplices—sometimes third-party firms hired by the authors—who wrote glowing reviews that helped get the papers accepted.

As the article notes, the journal is as guilty as these fake scientists.

“Tumor Biology,” which is owned by the International Society of Oncology and BioMarkers, has a history of problems. In 2016 it retracted 25 papers all at once for similar peer-review problems. The journal now has the dubious distinction of having retracted “the most papers of any other journal,” according to Retraction Watch. An investigation by ScienceInsider found that several scientists listed on its editorial board had no relationship with the journal and one had even passed away several years ago. The journal “should also improve their examination system to prevent [abuse by] unscrupulous researchers,” Chen says.

SAGE took over responsibility for publishing the journal “with the agreement that there would be a complete overhaul of the editorial structure and peer review practices of the journal, specifically the use of preferred reviewers,” a SAGE spokesperson wrote in an email to ScienceInsider.

Not surprisingly, the article includes some whining about the harshness of China’s punishments. Of the more than 500 disciplined, 314 were merely co-authors on a paper, and had not directly participated in the fraud. The investigation concluded that they should have been more diligent and aware of what the lead authors were doing, a perfectly reasonable conclusion.

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China’s giant single dish radio telescope FAST nears completion

10:19 am

The new colonial movement: The completion of FAST, the world’s largest single dish radio telescope in China, nears completion.

The article over emphasizes one of the telescope’s minor research projects, the search for alien life. However, it also provides a good overview of the telescope’s status. The main dish is finished, and they are presently building the instruments that will use that dish to do astronomical research.

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