Author Topic: China's space program  (Read 660444 times)

Offline zubenelgenubi

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Re: China's space program
« Reply #980 on: 07/20/2020 08:50 pm »
Cross-post:
Quote
Yuanwang 6 tracking ship left port today. This is expected to be to support the Tianwen-1 launch, though not stated (and interestingly will support missions will in the Pacific, Indian and Atlantic Oceans across one, 100+ day outing).
Pacific Ocean to support Tianwen-1 launch to Mars?
Atlantic Ocean to support experimental space-plane launch once-around the world?
Indian Ocean to support ?? launch to sun-synchronous orbit?
« Last Edit: 07/20/2020 08:53 pm by zubenelgenubi »
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Offline zubenelgenubi

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Re: China's space program
« Reply #981 on: 07/22/2020 06:05 pm »
Yuan Wang 7 en-route to Suva, Fiji, expected arrival July 29.
https://www.vesselfinder.com/vessels/YUAN-WANG-7-IMO-9804485-MMSI-413379290

Is this ship working the Tianwen-1 launch?  Or something else?
EDIT July 28: Tiantong-1 (02) launch?
« Last Edit: 07/28/2020 08:26 pm by zubenelgenubi »
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Offline zandr

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Re: China's space program
« Reply #982 on: 09/18/2020 08:45 pm »
From Xinhua:
China's new broadband satellite enters assembly stage
Quote
BEIJING, Sept. 18 (Xinhua) -- China's satellite producer GalaxySpace announced that its new broadband communication satellite has entered the assembly stage after the company completed the development of satellite payloads, state broadcaster CCTV reported Friday.
The satellite will be the second of the Beijing-based company, which aims to build a broadband satellite constellation in low-Earth orbit and create a global 5G communication network.
Its first communication satellite was sent into space in January this year.
China's commercial satellite sector is expecting a boost after "satellite internet" was added to a list of "new infrastructures" in April by the National Development and Reform Commission.

Offline SciNews

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Re: China's space program
« Reply #983 on: 09/21/2020 10:07 am »
Taiji-2 to be launched by 2024, Taiji-3 by 2033

Offline SciNews

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Re: China's space program
« Reply #984 on: 09/21/2020 11:55 am »
Reuters "Exclusive: China to lose access to Australian space tracking station"
https://www.reuters.com/article/china-space-australia/exclusive-china-to-lose-access-to-australian-space-tracking-station-idUSL4N2G6054
"The Swedish state-owned company told Reuters it would not enter into any new contracts at the Australian site to support Chinese customers after its current contract expires. However, it did not disclose when the lease runs out."

Offline SciNews

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Re: China's space program
« Reply #985 on: 09/22/2020 11:00 am »
Xi'an Aerospace Propulsion Institute: The first flight of a combined power engine developed by our institute is successful
https://mp.weixin.qq.com/s/7mcnySMD9F_EW7aFEDW77w
Machine translation: "After the test, the product was inspected to be in good condition. According to the telemetry data analysis, all the assessment items were completed in this flight test, and the performance of the engine exceeded the ground test results and the expected level. The test was super successful, which further verified the key technologies of the engine under the real flight state and incoming flow conditions, laying the foundation for the subsequent development."

Offline luhai167

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Re: China's space program
« Reply #986 on: 10/09/2020 02:13 am »
Chang'E 7 and proposed program schedule.

Offline Steven Pietrobon

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Re: China's space program
« Reply #987 on: 10/09/2020 07:28 am »
That's quite an ambitious mission. The relay satellite might mean a far side or polar mission. Can anyone translate the schedule?
« Last Edit: 10/09/2020 07:29 am by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Liss

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Re: China's space program
« Reply #988 on: 10/09/2020 10:55 am »
Can anyone translate the schedule?
Well, four sections are for CE-4, CE-7, CE-6 and CE-8 missions. Missions are structured as:
CE-4
* lander
* rover
* relay satellite
CE-7
* orbiter
* relay satellite
* lander
* hopper
* survey rover
CE-6
* orbiter
* return vehicle
* lander
* ascent vehicle
CE-8
* propulsion section
* lander
* hopper
* survey rover
Durations are indicated in parentheses (6 months, 3 months, 3-5 years etc.)
This message reflects my personal opinion based on open sources of information.

Offline Steven Pietrobon

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Re: China's space program
« Reply #989 on: 10/10/2020 02:24 am »
Thanks Liss! That's very informative. So that would have Chang'e 7 launch in 3rd qtr 2023, Chang'e 6 in 4th qtr 2024 (around the time of the Artemis landing) and Chang'e 8 in mid 2027. There's also a line in mid 2030, which I presume is the Chinese crewed landing.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline zandr

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Re: China's space program
« Reply #990 on: 10/22/2020 09:17 pm »
From Xinhua:
China Focus: China's commercial space industry forges ahead
Quote

China will continue developing Kuaizhou series rockets, which are low-cost solid-fuel space vehicles with high reliability and a short preparation period. Besides regular commercial launches, China will further shorten the launch preparation period and increase the number of launches.
China will conduct research on reusable launch vehicle technologies to reduce launch cost. The number of annual launch missions of Kuaizhou series rockets will be doubled by 2023 and China would have developed world-class solid propulsion technology by 2025.
Xingyun project, China's first self-developed space-based Internet of Things constellation, is expected to be complete in 2023 and will be ready to provide low-cost and reliable services to global users in 2025.
The rocket industrial park in the Wuhan National Aerospace Industry Base has the capacity to produce 20 solid-fuel launch vehicles per year. The satellite industrial park inside the base will have an annual production capacity of 100 to 200 satellites weighing less than one tonne by the end of 2020...

Offline Darkseraph

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Re: China's space program
« Reply #991 on: 10/30/2020 12:26 pm »
https://spacenews.com/china-outlines-architecture-for-future-crewed-moon-landings/

TLDR;

China's lunar landing plans now seem to revolve around using the Falcon-Heavy inspired rocket rather than Long March 9 'Saturn V' class rocket, which is not being mentioned anymore wrt lunar landing.

"A launcher concept using three, five-meter-diameter first stage cores and clusters of YF-100K engines—uprated versions of the YF-100 kerosene engines used by China’s new Long March 5, 6 and 7 launchers—was first displayed in 2018 and now appears to be integral to China’s plans, at least in the presentation. The new launcher would be around 87 meters long with a mass at liftoff of about 2,000 metric tons."

That sounds like a pretty good idea overall as this launcher would have other economically affordable uses for commercial, civil and military payloads in the near term. Russia's plans for Yenisei also seem to be practical in this manner by clustering boosters (Angara, Soyuz-5) that will already be used elsewhere rather than a single purpose mega-rocket that can't share costs, be used anywhere else or reused. If only that lesson had been learned elsewhere...
"For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled." R.P.Feynman

Offline Steven Pietrobon

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Re: China's space program
« Reply #992 on: 10/31/2020 01:16 am »
Yes, the "Next Generation Crewed Launcher" looks like a good solution. It has the advantage over Angara 5 though in potentially being reusable in a single core configuration and could replace all the other large rockets in China's stable.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline zandr

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Re: China's space program
« Reply #993 on: 11/03/2020 07:50 pm »
From Xinhua
http://russian.news.cn/2020-11/03/c_139487917.htm
Translated from Russian
Quote
China plans to launch a space telescope in 2024
Guangzhou, November 3 / Xinhua / -- China plans to launch an optical space telescope in 2024 /China Space Station Telescope, CSST/. As part of a project at sun Yat-sen University /Prov. Guangdong / construction of the CSST science center in the "Big Bay" region of Guangdong-Hong Kong-Macao has recently begun.
The csst telescope is expected to be launched into low-earth orbit in four years. As the first Russian orbital Observatory, it will give a powerful impetus to important scientific research, said Yu Tsung, Professor at the Institute of physics and astronomy of the aforementioned University.
To effectively organize research and operate the space Observatory, the office of the China manned space Program will establish four research centers in the country.

Offline SciNews

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Re: China's space program
« Reply #994 on: 11/05/2020 07:41 am »
Xinhua | English - University starts construction on astronomy center in China's Greater Bay Area
http://www.xinhuanet.com/english/2020-11/04/c_139491003.htm
Quote
The center is a part of a project known as the Chinese Space Station Telescope (CSST) , which is scheduled to be launched into a low-Earth orbit in 2024. The telescope will function as a space optical observatory for Chinese scientists to carry out sky surveys, said Yu Cong, a professor with the university, told Xinhua earlier this week.

Offline FutureSpaceTourist

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Re: China's space program
« Reply #995 on: 11/08/2020 03:10 pm »
twitter.com/spacenews_inc/status/1325234591628746754

Quote
China’s main space contractor is developing launch vehicles capable of learning and adapting as well as multiple technologies for recovering and reusing rockets.
https://spacenews.com/china-sets-targets-for-smart-recoverable-and-reusable-launch-vehicles/

https://twitter.com/elonmusk/status/1325402989201403906

Quote
China understands the profound importance of reusability. The era of expendable rockets will soon be over.

Offline gosnold

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Re: China's space program
« Reply #996 on: 11/08/2020 06:02 pm »
Academician Li Deren has given an extensive interview on China's current and future Earth observation system:
https://mp.weixin.qq.com/s/-x7Du8uW-KOJwjA-0-kGxw

Offline zubenelgenubi

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Re: China's space program
« Reply #997 on: 11/10/2020 06:27 pm »
Cross-post:
[Future lunar missions attachment]
Support your local planetarium! (COVID-panic and forward: Now more than ever.) My current avatar is saying "i wants to go uppies!" Yes, there are God-given rights. Do you wish to gainsay the Declaration of Independence?

Offline Phil Stooke

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Re: China's space program
« Reply #998 on: 11/10/2020 06:49 pm »
Note that the "Chang'e 4" in the bottom row should say "Chang'e 7".

Offline otter

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Re: China's space program
« Reply #999 on: 11/18/2020 05:55 pm »

 

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