China's Space Program News Thread

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bd popeye

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Chinese astronauts in the reentry module of Shenzhou-11 spacecraft are seen on the screen of the Beijing Aerospace Control Center (BACC) in Beijing, capital of China, Nov. 18, 2016. Two astronauts who completed China's longest-ever manned space mission returned to Earth safely Friday afternoon, according to the BACC. (Xinhua/Cai Yang)

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Technicians work at the Beijing Aerospace Control Center (BACC) in Beijing, capital of China, Nov. 18, 2016. Two astronauts who completed China's longest-ever manned space mission returned to Earth safely Friday afternoon, according to the BACC. (Xinhua/Cai Yang)

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Photos taken on Nov. 18, 2016 shows the reentry module of Shenzhou-11 spacecraft in north China's Inner Mongolia Autonomous Region. Two astronauts who completed China's longest-ever manned space mission returned to Earth safely Friday afternoon, according to the Beijing Aerospace Control Center. (Xinhua/Ren Junchuan)

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The return capsule of China's Shenzhou-11 spacecraft is seen on the main landing area after landing successfully in north China's Inner Mongolia Autonomous Region on Nov. 18, 2016. (Xinhua/Li Gang)
 

SinoSoldier

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Can anybody do a rough translation of what's written on this website:

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This is another private Chinese aerospace startup (the third one so far) that aims to develop lightweight rockets (maiden flight set for 2018) and eventually move to heavy-lift rockets; they've already tested a 50 kN DDE-5 engine which is slated for their flagship rocket in a 9-cluster configuration.
 

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China’s Shijian-17 satellite this week linked up with another satellite in Geostationary Orbit and has entered a path closely shadowing the resident object in continued testing of rendezvous and situational awareness technology in the high-orbit regime – a self-prescribed goal of several nations faced with ongoing space militarization efforts.

Officially, SJ-17 has been identified as a technical demonstrator satellite for a new satellite platform, testing higher-performance solar cells, new structural components, a green propulsion system consuming non-toxic propellants, and debuting a Hall-Effect Thruster system for use on future Chinese GEO satellites.

Additionally, official media reported, Shijian-17 would be tasked with communications services, a demonstration of navigation in the high-orbit regime, and testing an imaging system for the identification of space debris at high altitude. The use of a combination of chemical & electric propulsion strongly suggested SJ-17 was in for quite some maneuvering once reaching its planned orbit – possibly to employ its optical sensor to look at more than just space debris.

The satellite drifted at 20 degrees per day until November 10 when it reduced its orbital altitude and continued drifting at 10 degrees for another day before a pair of maneuvers placed the satellite in a stationary position with its velocity matching that of Earth’s rotation.Orbital tracking showed the SJ-17 satellite entering station at 162.9 degrees East, in close neighborhood to the ChinaSat-5A communications satellite residing at 163.06°E – a first indication that a close rendezvous at high-altitude might be in store...

According to AGI, Shijian-17 was within 100 Kilometers to ChinaSat-5A on November 17 and continued on towards a flyby at a distance of only four Kilometers at ~17:36 UTC on November 30. By this week, Shijian-17 “entered into a co-planar circumnavigation of ChinaSat-5A, remaining 86 to 115 Kilometers away,” AGI Tweeted based on their tracking data. Publicly available tracking elements confirm a close angular separation of the two objects at under 0.05 degrees as of Friday, December 9...
 
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escobar

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China develops non-toxic propellant for orbiting satellites
A non-toxic propulsion system developed by Chinese scientists will enable satellites to carry more payload and save on satellite launching costs, the system's developer said.The ammonium dinitramide (ADN) technology used in the system proved successful when it was tested in the Shijian-17 satellite sent into space last month, the China Aerospace Science and Technology Corporation said in a statement.

Shijian-17 is tasked with verifying technology for observation of space debris, new electric sources and electric propulsion.According to scientists, the propulsion system is meant to help an orbiting satellite sustain its altitude as atmospheric drag and gravity can lead to gradual descent in orbit.

It will also make China the second country after Sweden to master a non-toxic propulsion technology in orbit, it said.The technology will help avoid human injuries and adverse effects to equipment caused by propellant emission or leakage, according to the document.As most propellants currently used are toxic, countries are racing to develop more environmentally friendly and non-toxic propellants, it added.
 

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A Chinese commercial launch-service provider created earlier this year to bid for small-satellite business worldwide expects to launch 10 of its Kuaizhou solid-fueled rockets per year between 2017 and 2020, the company said.

In a statement published by China Daily, Zhang Di, vice president of the China Aerospace Science and Industry Corp. (CASIC) Fourth Academy, said Expace Technology Co. would charge around $10,000 per kilogram of satellite payload, which he said was less than half the prevailing commercial price. Zhang is also chairman of Expace.

CASIC created Expace in early 2016 as China’s second commercial-launch provider after China Great Wall Industry Corp. of Beijing, which has long been China’s showcase export vehicle for launches and commercial satellite contracts. China Great Wall is part of the China Aerospace Science and Technology Corp. (CAST).

Zhang said Expace has already signed its first commercial contract, valued at 100 million Chinese yuan, or around $14.5 million, to place three Earth observation satellites into low Earth orbit aboard a Kuaizhou 1 rocket for the government-owned Changguang Satellite Technology Co.This same company has more than 10 other satellites slated for future launches on Kuaizhou rockets.


Guo Yong, president of the CASIC Fourth Academy, said letters of intent for “nearly 20” Kuaizhou rocket launches were signed at the Airshow China conference and exhibition held Nov. 1-6 in Zhuhai. It was not clear if any of these were with non-Chinese customers.

Zhang said Expace is in discussions with satellite owners in Asia, Europe and Latin America and has already bid on launch contracts in one or more of these regions. China Great Wall, which markets the Long March series of medium- and heavy-lift rockets, has been obliged to sign bundled satellite-manufacturing and launch contracts with non-Chinese customers to get around a U.S. government ban on launching U.S. satellite parts from China.

For now, most builders of large telecommunications satellites in Asia and Europe, in addition to the United States, incorporate U.S. components and are thus prevented from being exported to China.

But industry officials say this U.S. influence is gradually reducing as non-U.S. manufacturers, stimulated by politically driven goals of autonomy in critical satellite components, reduce their reliance on U.S. suppliers. The strengthening U.S. dollar will accelerate that trend insofar as it makes U.S. hardware more expensive.

The picture is different for small satellites for Earth observation, technology demonstration or other missions. A higher percentage of these satellites built outside the United States are built without reliance on U.S. components and are not bound by the U.S. ban.

Tan Qinghai of CASIC said in the China Daily article that the CASIC Fourth Academy’s the latest version of the Kuaizhou rocket, which can place a 1,000-kilogram satellite into a 700-kilometer sun-synchronous orbit — and 1,500 kilograms into a 400-kilometer orbit — is scheduled to make its first flight in 2017.
 

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China's National Space Science Centre (NSSC) has unveiled a range of space science missions to be developed over the next five years, following the success of a number of pioneering missions over the last 12 months. The missions were selected from a roadmap for a long-term space science program and will delve into some of the most fundamental questions such as the formation and evolution of the universe, the formation and evolution of the solar system, and the study of exoplanets and potential extra-terrestrial life.

The unveiled missions are a space-weather observatory mission in collaboration with the European Space Agency (SMILE), a global water cycle observation mission (WCOM), the Magnetosphere, Ionosphere and Thermosphere mission (MIT), the Einstein Probe (EP), and the Advanced Space-based Solar Observatory (ASO-S). The missions will be overseen and integrated by the NSSC, under the Chinese Academy of Sciences (CAS).

Operating in the new field of transient astronomy, the Einstein Probe will survey large portions of the universe for exotic space phenomena using very sensitive X-ray cameras. EP will also aim to locate the electromagnetic wave counterparts of gravitational wave events, and survey the skies for phenomena including supernovae, neutron stars and transient activity in galactic centres. WCOM will further understanding of the global water cycle and its variations, while SMILE will investigate how charged particles coming from the sun interact with the Earth’s magnetosphere.

The missions are expected to be launched around or after 2020, and will variously involve collaboration with scientists and institutions from the United States, United Kingdom, Germany and other European nations...
 

escobar

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FY-4A, first of the new generation of geosynchronous meteorological sat series launched
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escobar

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China’s Long March 3B rocket made a midnight-hour liftoff from the Xichang Satellite Launch Center Saturday night, carrying into orbit the first in the next-generation of Fengyun Geostationary Weather Satellites to significantly enhance the country’s weather forecasting capabilities, introducing new instruments to keep close watch on planet Earth

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The new and improved Fengyun-4 satellite series switches to a three-axis stabilized bus that permits a much higher observation efficiency and also allows the satellite to employ a more diverse sensor complement. The 5,300-Kilogram Fengyun-4A satellite hosts an Advanced Geosynchronous Imager as its main instrument, capturing a full view of Earth every 15 minutes in 16 spectral channels for Earth surface monitoring and cloud observation at a resolution between 0.5 and 4 Kilometers.

A new development is the Geostationary Interferometric Infrared Sounder that hosts a large 913-channel detector to capture data on the internal constitution of the atmosphere at a 16-Kilometer resolution. FA-4 also hosts a Lightning Mapper that pin-points every lightning strike occurring over China with day and night coverage to assist in the prediction of severe weather. A Space Weather Suite captures data on energetic particles arriving at Earth as well as the planet’s magnetic field responsible for particle motion around Earth which can have implications on space weather phenomena

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