Author Topic: China's space program  (Read 405013 times)

Offline Phil Stooke

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Re: China's space program
« Reply #820 on: 07/11/2018 06:37 PM »
A bit more on the polar research station.  This was from a presentation at the Microsymposium held just before LPSC in March 2018.

CR1 and CR2 stand for Connecting Ridge 1 and 2, high illumination sites on the ridge between Shackleton and de Gerlache craters.
« Last Edit: 07/11/2018 06:38 PM by Phil Stooke »

Offline plutogno

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Re: China's space program
« Reply #821 on: 07/12/2018 07:53 PM »
New China space missions will watch for colliding black holes, solar blasts
http://www.sciencemag.org/news/2018/07/new-china-space-missions-will-watch-colliding-black-holes-solar-blasts

Offline bolun

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Re: China's space program
« Reply #822 on: 07/18/2018 07:38 PM »
CAS Officially Launched the Strategic Priority Program on Space Science Phase II

2018-07-05

On July 4, 2018, the Chinese Academy of Sciences (CAS) officially launched the strategic pioneer program on space science (phase II) at Beijing Huairou Science City. Upon great scientific achievements achieved by Dark Matter Particle Explorer (DAMPE), Quantum Experiments at Space Scale (QUESS), Hard X-Ray Modulation Telescope (HXMT), ShiJian-10 Recoverable Satellite, etc. from Phase I, the program will launch 4 more space science satellites in the next 5 years.

The new patch of space science satellites, includes Einstein Probe (EP), Advanced Space-based Solar Observatory (ASO-S), ESA-CAS Solar Wind Magnetosphere Ionosphere Link Explorer (SMILE), all of which has officially entered its engineering phase. Gravitational Wave High-energy Electromagnetic Counterpart All-sky Monitor (GECAM) is carrying out Phase A study, and will enter engineering phase soon.

The four missions mainly focuses on time-domain high-energy astrophysics, the relationship between solar magnetic field and solar eruptions, interactions between the solar wind and magnetosphere, the detection of gravitational wave electromagnetic counterpart from gamma-ray bursts.

The priority program has also deployed a number of projects including conceptual study, intensive study, pre-research, space science mission planning and data analysis, etc.

The Enhanced X-ray Timing and Polarimetry Mission (eXTP) is among the six major projects under intensive research. It is a major international cooperation program led by China and participated by more than 20 countries. With the scientific targets of “one singularity (black holes), two stars (neutron stars and magnetars) and three extremes (gravity, magnetism and density)”, it is designed to observe black holes, neutron stars, and magnetars to better understand the physics in extreme conditions of gravity, magnetism and density.

Other projects under intensive study will carry out a series of key technological endeavors in fields such as space gravitational wave detection, origin and evolution law of the universe, birth of the solar system, detection of earth-like planets outside the solar system, etc.

Background information:

Einstein Probe (EP) will perform all-sky monitoring and explore the cosmic high-energy transients. It may shed light on the answers to the questions such as the origin and evolution of black hole population, generation mechanism of gravitational waves, and their effects and life cycle of the first generation of stars, re-ionization, etc.

Advanced Space-borne Solar Observatory (ASO-S) will reveal the multiple relationships between solar magnetic field, solar flares, and Coronal Mass Ejections (CMEs).

Solar Wind Magnetosphere Ionosphere Link Explorer (SMILE) was jointly proposed and developed by Chinese Academy of Sciences and European Space Agency. It is expected to determine when and where transient and steady magnetopause reconnection dominates, define the substorm cycle, including timing and flux transfer amplitudes, as well as the development of CME-driven storms. With the new soft X-ray Imager and ultra-violet imager as its payloads, SMILE will carry out global imaging of the interaction between solar wind and magnetosphere for the first time.

Gravitational Wave High-energy Electromagnetic Counterpart All-sky Monitor (GECAM) is an “mission of opportunity” project proposed for the detection of gravitational wave high energy electromagnetic counterpart in space. With the joint observation by satellites and ground gravitational wave detector, it enables facilitates the discovery of gravitational wave electromagnetic counterpart gamma-ray burst and new radiation phenomena.

http://english.nssc.cas.cn/ns/headline/201807/t20180705_194747.html

Offline Tywin

Re: China's space program
« Reply #823 on: 09/21/2018 05:18 AM »
A very good paper, about the new science missions proposed by China  :D, and in english  ;)

https://sites.nationalacademies.org/cs/groups/ssbsite/documents/webpage/ssb_185302.pdf

And other with more info  8)

http://www.essc.esf.org/fileadmin/user_upload/essc/Chinese-Space-Program-2018.pdf
« Last Edit: 09/21/2018 05:26 AM by Tywin »

Offline zandr

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Re: China's space program
« Reply #824 on: 09/25/2018 09:34 PM »
http://www.xinhuanet.com/english/2018-09/25/c_137491923.htm
Quote
China aims to explore polar regions of Moon by 2030 
BEIJING, Sept. 25 (Xinhua) -- China plans to land on and explore the southern and northern polar regions of the Moon by 2030, according to an official of the China National Space Administration (CNSA).
Li Guoping, director of the Department of System Engineering of the CNSA, said at the World Conference on Science Literacy 2018 recently held in Beijing that China is planning four missions for the fourth stage of its lunar exploration program.
China's lunar exploration program, named after the legendary Chang'e, a moon goddess accompanied by a jade rabbit, started in 2003, and the first three stages of the program include orbiting and landing on the Moon, and bringing samples back to Earth.
Li said the fourth stage of the program will include sending the Chang'e-4 lunar probe to the far side of the Moon at the end of 2018, which is expected to become the world's first soft-landing, roving probe on the Moon's far side. A relay satellite, named Queqiao (Magpie Bridge), for Chang'e-4 has entered a Halo orbit around the second Lagrangian (L2) point of the Earth-Moon system, about 65,000 km from the Moon in June.
Three other missions include bringing lunar samples back to Earth for the second time, landing on the South Pole region and the North Pole region, Li said.
The exploration to the South Pole aims to study the age of the lunar soil, and the composition of the solar wind's isotopes of hydrogen, carbon, helium and oxygen; while the exploration to the North Pole aims to find out whether ice exists in the permanent shadow area, according to Li.
After that, China is considering setting up a scientific research station on the Moon and implementing more robot and human lunar exploration missions in the future, Li added. 

Offline SciNews

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Re: China's space program
« Reply #825 on: 09/26/2018 03:16 PM »
Tengfei-1 - China’s spaceplane completed first tests

Zou Hon (CASIC):"We have recently completed the flight test of Tengfei 1 and it was the first flight test in China that had realized the mode conversion of combined power"

Offline Steven Pietrobon

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Re: China's space program
« Reply #826 on: 09/27/2018 08:52 AM »
Tengfei 1 was launched "recently". Anybody have an actual date?
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline SciNews

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Re: China's space program
« Reply #827 on: 09/27/2018 12:19 PM »
Andrew Jones: "Despite claims of the test flight, the footage of Tengfei-1 (腾飞一号, meaning to 'rapid rise' or 'blast off' number one) was CGI." https://gbtimes.com/chinese-contractor-claims-progress-on-reusable-spaceplane

Offline Asteroza

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Re: China's space program
« Reply #828 on: 09/27/2018 11:42 PM »
Tengfei-1 - China’s spaceplane completed first tests

Zou Hon (CASIC):"We have recently completed the flight test of Tengfei 1 and it was the first flight test in China that had realized the mode conversion of combined power"

Mode conversion, along with the picture suggesting an air breather. Is this an RBCC type engine we are seeing?

Offline Steven Pietrobon

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Re: China's space program
« Reply #829 on: 09/28/2018 08:58 AM »
Andrew Jones: "Despite claims of the test flight, the footage of Tengfei-1 (腾飞一号, meaning to 'rapid rise' or 'blast off' number one) was CGI." https://gbtimes.com/chinese-contractor-claims-progress-on-reusable-spaceplane

The top left of the image I posted of the presumed launch doesn't look like CGI to me, although it could be of anything. What was tested was probably in the lower left image (which is CGI), with perhaps a ground test at lower right (not CGI).
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline SciNews

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Re: China's space program
« Reply #830 on: 09/28/2018 09:30 AM »
Top left could be any suborbital launch, top right suggests a wind tunnel test of a scale model, down left could be an ilustration of the mode conversion and down right could be a ground test of the rocket engine.
It's hard to know for sure what was tested and when, but similar attempts were made before
https://forum.nasaspaceflight.com/index.php?topic=11130.0
https://forum.nasaspaceflight.com/index.php?topic=23764

Offline SciNews

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Re: China's space program
« Reply #831 on: 10/12/2018 06:49 PM »
Quote
A military magazine editor and blogger by the name of Weaponmagazine-Xiaoning said the footage could be of Chinese military testing a top secret hypersonic aircraft, DF-ZF. The hypersonic glide vehicle was previously known by the Pentagon as WU-14.
However, officials in China have yet to confirm the latest round of testing.
https://www.dailymail.co.uk/news/article-6268839/Is-UFO-Mysterious-light-spotted-night-sky-northern-China.html

Offline russianhalo117

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Re: China's space program
« Reply #832 on: 10/12/2018 06:54 PM »
Quote
A military magazine editor and blogger by the name of Weaponmagazine-Xiaoning said the footage could be of Chinese military testing a top secret hypersonic aircraft, DF-ZF. The hypersonic glide vehicle was previously known by the Pentagon as WU-14.
However, officials in China have yet to confirm the latest round of testing.
https://www.dailymail.co.uk/news/article-6268839/Is-UFO-Mysterious-light-spotted-night-sky-northern-China.html

DF-ZF is a suborbital CZ-2C (DF-5C version?) so WU-14 would be the payload.

Offline Hog

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Re: China's space program
« Reply #833 on: 10/14/2018 12:17 AM »
Is China the only country that currently has human access to space?
Paul

Online MATTBLAK

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Re: China's space program
« Reply #834 on: 10/14/2018 12:44 AM »
Technically, yes. Don't think we can count the all-up, sub-orbital test flight of Spaceship 2 that is imminent.
« Last Edit: 10/14/2018 12:44 AM by MATTBLAK »
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Offline SciNews

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Re: China's space program
« Reply #835 on: 10/14/2018 09:09 AM »
Technically, yes.
Practically, no. China recently announced the scheduled deorbit of Tiangong-2 in July 2019. It's unlikely they have a Long March 2F rocket ready or a Shenzhou capsule. So, China has the potential human access to space, but not the readiness.

Offline Lsquirrel

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Re: China's space program
« Reply #836 on: 10/23/2018 10:28 AM »
Next Generation Manned Launch Vehicles,Next Generation Manned SpaceCraft,LEO、GEO and Beyond(Cis-Lunar)

Offline Phillip Clark

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Re: China's space program
« Reply #837 on: 10/23/2018 10:43 AM »
Next Generation Manned Launch Vehicles,Next Generation Manned SpaceCraft,LEO、GEO and Beyond(Cis-Lunar)

Could the captions be translated into English please?
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Offline Lars-J

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Re: China's space program
« Reply #838 on: 10/23/2018 05:09 PM »
Next Generation Manned Launch Vehicles,Next Generation Manned SpaceCraft,LEO、GEO and Beyond(Cis-Lunar)

Could the captions be translated into English please?

Yes, please, that would be great. :)

-----

Otherwise, it looks like the Chinese space program is picking up lots of influences of SpaceX and Blue Origin - using that as their source of inspiration rather than Orion/SLS. Their next-gen manned launcher will have 7 clustered engines. In a single stick and 3-core heavy version. (heavy for lunar?)

(see attached image)
« Last Edit: 10/23/2018 07:00 PM by Lars-J »

Offline Ultrafamicom

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Re: China's space program
« Reply #839 on: 10/24/2018 12:49 AM »
Next Generation Manned Launch Vehicles,Next Generation Manned SpaceCraft,LEO、GEO and Beyond(Cis-Lunar)

Could the captions be translated into English please?
The title is"Development and Preliminary Research of New Generation crewed launch vehicle"

The new crewed spacecraft has a reusable capsule and two configuration of SM for LEO or deep space operation.

The rocket designs emphasis "modularization". The presentation focus on "Falcon Heavy on steroid" with 5m, 7xYF-100K core and 3CBC as take-off stage. 2xYF-100K  Vacuum as second stage, and an optional hydrolox 3rd stage utilize YF-75D. Another design is an "Angara on steroid " with 4m, 4xYF-100 URM

That page with SpaceX stuff advocates advanced design concept and method, as well as bold attempt on new technology for global advantage
« Last Edit: 10/24/2018 01:04 AM by Ultrafamicom »

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