China Space Military：Recon, Satcom, Navi, ASAT/BMD, Orbital Vehicle, SLV, etc.

[Daniel808]

From Henri Kenhmann at East Pendulum on 2021.03.13:

The SY-9 satellite, launched on March 12 by the CZ-7A Y2 launcher upon return to flight of this medium power launcher. This family of new generation launchers will eventually replace the CZ-3 family.

According to some local sources, the SY-9 satellite would have a mass of more than 6 tonnes.

https://twitter.com/x/status/1370694630912581633

This new type of launcher experienced failure on its maiden flight on March 16, 2020.

6.8 Tonnes, what a badass Satellite

From stromgade @stromgade on 2021.03.13:

As expected, the YG-31-04 group (i.e. the 4th triplet group, a typo at the original tweet) has filled the gap in the constellation. All the six orbital planes are now equally spaced, so the constellation is complete.

On the images,
the 1st-generation satellites are in yellow,
2nd generation in red,
Yaogan 31-02, -03 and -04 in GREEN.

View attachment 724381
View attachment 724382

https://twitter.com/x/status/1370676305046421505

Read the corresponding article here:

The Chinese maritime surveillance system

A space-based maritime surveillance system, with electronic intelligence, radar and optical satellite constellations. The aim of this article is to give a survey of these constellations, and to assess how much their combined capabilities give China an accurate and comprehensive picture of the situation at sea.

Conclusion

Thanks to its satellites, China has optical, radar and electronic capabilities to detect, identify and track ships at sea. Even without taking into account real-time tracking from geostationary orbit, the wide-angle JB-9 constellation and the JB-5 and JB-7 SAR constellations can find contacts in a vast area every day, and have a good chance of refreshing the location of the most interesting ships every few hours. Consequently, it seems unlikely a naval group could hide in the ocean for long.

However, when the weather is very cloudy, only the SAR satellites are able to look through, which severely limits the capabilities of the system. This does not mean China is blind: other means of detection, such as it trans-horizon radars, or its long range patrol aircrafts can complement the satellite system, and help challenge the defenses of US aircraft carriers. This makes a US intervention in a new Taiwan Strait crisis much more risky, and consequently less likely.

The Chinese maritime surveillance system

An analysis of the Chinese reconnaissance satellites, and their maritime surveillance capabilities This article initially appeared on eastpendulum.com, a French-language blog about the Chinese mili…

satelliteobservation.net

With the launch of Yaogan-31 group 04, there are now 6 regularly-spaced orbital planes, so the constellation is likely complete:

YG 31-02 a/b/c same 2021 New plane

YG 31-03 a/b/c same 2021 New plane

YG 31-04 a/b/c same 2021 New plane

'same' refers to Local time of passage is VARIABLE, as the orbit is not Sun-Synchronous (non-SSO)

year refers to Launch year

New orbital plane

 

[GeHAC]

The 24-hour revisit diagram of the coverage over Taipei for the JianBing 8 (JB-8), the Chinese military satellite constellation (the triplet satellites of Yaogan-20, YG-25, YG-31, YG-31-02, YG-31-03, YG-31-04), with a 5-degree minimum incidence angle. (2021-03-14)

View attachment 724670

In video:

https://twitter.com/x/status/1371052766320336896

The related article:

The Chinese maritime surveillance system

An analysis of the Chinese reconnaissance satellites, and their maritime surveillance capabilities This article initially appeared on eastpendulum.com, a French-language blog about the Chinese mili…

satelliteobservation.net

JianBing 建兵 lit. to build soldiers
Yaogan 遥感 lit. remote sensing

jianbing 尖兵 scout

是尖兵系列卫星，对外使用遥感系列的名称

 

[samsara]

The 24-hour revisit diagram of the coverage over Taipei for the JianBing 8 (JB-8), the Chinese military satellite constellation (the triplet satellites of Yaogan-20, YG-25, YG-31, YG-31-02, YG-31-03, YG-31-04), with a 5-degree minimum incidence angle. (2021-03-14)

View attachment 724670

In video:

https://twitter.com/x/status/1371052766320336896

The related article:

The Chinese maritime surveillance system

An analysis of the Chinese reconnaissance satellites, and their maritime surveillance capabilities This article initially appeared on eastpendulum.com, a French-language blog about the Chinese mili…

satelliteobservation.net

JianBing 建兵 lit. to build soldiers
Yaogan 遥感 lit. remote sensing

Correction:

JianBing 尖兵 lit. trailblazer, pathfinder, vanguard
Yaogan 遥感 lit. remote sensing

Thx @GeHAC

 

[JSCh]

China航天​

今天 09:59​

【长光卫星公司计划今年实现60颗卫星在轨运行】长光卫星技术有限公司计划今年实现60颗卫星在轨运行，具备全球任意地点30分钟内重访能力。‘十四五’期间，实现138颗卫星组网，具备全球任意地点10分钟内重访能力。
长光卫星公司按照承担的国家卫星项目发射要求，按时研发、生产、交付相关型号卫星，加速 “吉林一号”卫星星座的组网。长光卫星公司自成立以来，已先后经历十余次发射，成功将25颗“吉林一号”卫星发射升空，在线组网O网页链接
图为:吉林一号星座2020年5月5日拍摄的天眼​

China Aerospace
Today at 09:59

[Changguang Satellite Company plans to have 60 satellites in orbit this year]

Changguang Satellite Technology Co., Ltd. plans to achieve 60 satellites in orbit this year, with the ability to revisit any location in the world within 30 minutes. Within the "14th Five-Year Plan" period, 138 satellites will be networked, with the ability to revisit any place in the world within 10 minutes.

In accordance with the launch requirements of the national satellite project, Changguang Satellite Company will develop, produce and deliver related types of satellites on time to accelerate the networking of the "Jilin No. 1" satellite constellation. Since its establishment, Changguang Satellite Company has successfully sent 25 "Jilin No. 1" satellites into space in more than ten launches.

Pictured: FAST Telescope taken by Jilin No.1 Constellation on May 5, 2020

 

[JSCh]

China launches new Earth observation satellite
Source: Xinhua| 2021-03-31 07:38:10|Editor: huaxia

A Long March-4C rocket carrying Gaofen-12 02 Earth observation satellite blasts off from the Jiuquan Satellite Launch Center in northwest China on March 31, 2021. (Photo by Wang Jiangbo/Xinhua)

JIUQUAN, March 31 (Xinhua) -- China sent a new Earth observation satellite into space from the Jiuquan Satellite Launch Center in northwest China at 6:45 a.m. Wednesday (Beijing Time).

The satellite, Gaofen-12 02, was launched aboard a Long March-4C rocket and entered its planned orbit successfully.

The satellite will be used in land surveys, urban planning, road network design and crop yield estimation, as well as disaster relief.

It was the 364th flight mission of the Long March carrier rocket series.

 

[samsara]

From Henri Kenhmann at East Pendulum on 2021.03.31:

Successful launch of the Gaofen-12-02 satellite this morning at the Jiuquan Space Center. Lift-off of the CZ-4C rocket took place at 6:45 a.m. Beijing time.

It is the 8th Chinese orbital launch of the year.

https://twitter.com/x/status/1377074422926872578

 

[JSCh]

China航天
今天 10:18
吉林一号星座2020年11月8日拍摄到的三峡大坝
The Three gorges dam taken by Jilin-1 on 8 Nov, 2020.

 

[Yongpeng Sun-Tastaufen]

China航天
今天 10:18
吉林一号星座2020年11月8日拍摄到的三峡大坝
The Three gorges dam taken by Jilin-1 on 8 Nov, 2020.

View attachment 731278​

Better resolution than google map satellite images.

 

[JSCh]

07:38, 09-Apr-2021
China launches satellite for space environment study
Updated 09:49, 09-Apr-2021
CGTN

China's Long March-4B rocket blasts off with a Shiyan-6 satellite for space environment study, April 9, 2021. /CMG

China launched a satellite into planned orbit on Friday for space environment study. The satellite was carried by a Long March-4B rocket departing from Taiyuan Satellite Launch Center in north China's Shanxi Province.

The satellite, the third of the Shiyan-6 series, was launched at 7:01 a.m. It will be used to carry out space environment survey and experiments on related technologies.

The first and second Shiyan-6 satellites were both launched by China's Long March-2D rocket, in November 2018 and July 2020 respectively, for similar objectives.

The Long March-4B carrier rocket is a three-stage carrier rocket powered with liquid fuel under normal temperature.

The rocket is capable of launching various types of satellites to different orbits, and can launch multiple satellites in single flight. It can carry a payload of up to 2.5 tonnes to a sun-synchronous circular orbit.

Friday's launch was the 365th by the Long March rocket series.

 

[letsrock]

Better resolution than google map satellite images.

When will these enter mainstream maps like baidu maps. right now chinese mapping is worse than russia's.

 

[JSCh]

China launches nine commercial satellites
Source: Xinhua| 2021-04-27 12:17:20|Editor: huaxia

A Long March-6 rocket blasts off from the Taiyuan Satellite Launch Center in north China's Shanxi Province, April 27, 2021, sending nine commercial satellites into space. The satellites, including Qilu-1 and Qilu-4, have entered their planned orbits and will provide east China's Shandong Province with remote sensing services for land survey, urban construction, agriculture, forestry, energy, disaster prevention and reduction. Other satellites onboard the rocket will be used to test technologies in satellite platform design, real-time imaging and observation, data acquisition and transmission, or to offer observations of small celestial bodies and remote sensing services. (Photo by Zheng Taotao/Xinhua)

TAIYUAN, April 27 (Xinhua) -- China launched its Long March-6 rocket on Tuesday, sending nine commercial satellites into space.

The rocket blasted off from the Taiyuan Satellite Launch Center in north China's Shanxi Province at 11:20 a.m. (Beijing Time).

This was the 366th flight mission of the Long March rocket series.

The satellites, including Qilu-1 and Qilu-4, have entered their planned orbits and will provide east China's Shandong Province with remote sensing services for land survey, urban construction, agriculture, forestry, energy, disaster prevention and reduction.

Other satellites onboard the rocket will be used to test technologies in satellite platform design, real-time imaging and observation, data acquisition and transmission, or to offer observations of small celestial bodies and remote sensing services.

 

[JSCh]

https://twitter.com/x/status/1387070922398519304

Jeff Foust @jeff_foust

Interesting chart from today’s ACCRES (Advisory Cmte for Comm’l Remote Sensing) by Dave Gauthier of NGA, providing an Olympics-style assessment of commercial remote sensing capabilities worldwide. China edges out the US in this NGA assessment.


11:47 PM · Apr 27, 2021

 

[redtom]

China recently announced plans for global transportation in one hour.What is the estimated weight for a single shipment? Is it possible to drop dozens of tons of cluster bombs directly from space?

 

[JSCh]

China launches nine commercial satellites
Source: Xinhua| 2021-04-27 12:17:20|Editor: huaxia

View attachment 737878​

A Long March-6 rocket blasts off from the Taiyuan Satellite Launch Center in north China's Shanxi Province, April 27, 2021, sending nine commercial satellites into space. The satellites, including Qilu-1 and Qilu-4, have entered their planned orbits and will provide east China's Shandong Province with remote sensing services for land survey, urban construction, agriculture, forestry, energy, disaster prevention and reduction. Other satellites onboard the rocket will be used to test technologies in satellite platform design, real-time imaging and observation, data acquisition and transmission, or to offer observations of small celestial bodies and remote sensing services. (Photo by Zheng Taotao/Xinhua)

TAIYUAN, April 27 (Xinhua) -- China launched its Long March-6 rocket on Tuesday, sending nine commercial satellites into space.

The rocket blasted off from the Taiyuan Satellite Launch Center in north China's Shanxi Province at 11:20 a.m. (Beijing Time).

This was the 366th flight mission of the Long March rocket series.

The satellites, including Qilu-1 and Qilu-4, have entered their planned orbits and will provide east China's Shandong Province with remote sensing services for land survey, urban construction, agriculture, forestry, energy, disaster prevention and reduction.

Other satellites onboard the rocket will be used to test technologies in satellite platform design, real-time imaging and observation, data acquisition and transmission, or to offer observations of small celestial bodies and remote sensing services.

View attachment 737875
View attachment 737876​

https://twitter.com/x/status/1387354711985061889

 

[JSCh]

我们的太空​

7分钟前 来自 新版微博 weibo.com​

【#我国成功发射遥感三十四号卫星# 】北京时间2021年4月30日15时27分，我国在酒泉卫星发射中心用长征四号丙运载火箭，成功将遥感三十四号卫星发射升空，卫星进入预定轨道。
遥感三十四号卫星是光学遥感卫星，主要用于国土普查、城市规划、土地确权、路网设计、农作物估产和防灾减灾等领域，可为“一带一路”建设等提供信息保障。
此次任务是长征系列运载火箭的第368次飞行。（拍摄：汪江波）​

Our space
30 minutes ago from New Weibo

[China successfully launched the Yaogan-34 satellite]

At 15:27 on April 30, 2021, Beijing time, China used the Long March 4C carrier rocket at the Jiuquan Satellite Launch Center to successfully launch the Yaogan-34 satellite into space, and the satellite entered the planned orbit.

Yaogan-34 satellite is an optical remote sensing satellite, mainly used in the fields of land survey, urban planning, land right confirmation, road network design, crop yield estimation, and disaster prevention and mitigation. It can provide support for the construction of "Belt and Road".

This mission is the 368th flight of the Long March series of carrier rockets. (Photographing: Wang Jiangbo)