Yaogan Weixing

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Yaogan Weixing ( Chinese 遥感 卫星 , German "remote sensing satellite", Yaogan for short ) refers to a series of Chinese earth observation and / or reconnaissance satellites .

The satellites

Yaogan Weixing 1 , or Jian Bing-5 (JB-5), is a Chinese satellite commissioned by the People's Liberation Army . The development took place at the Shanghai Academy of Space Technology . On April 26, 2006, at 22:48 UTC, it was launched into solar synchronous orbit by a Langer March 4B launcher from the Taiyuan Cosmodrome without prior notice . After reaching the starting orbit of 601 × 621 km × 97.8 °, it raised its orbit to 628 × 629 km × 97.8 ° from April 29 to May 1.

Yaogan Weixing 2 (JianBing 6) was born on May 25, 2007 together with a 2.5 kg picosatellite (Zheda Pixing 1 or MEMS-Pico) equipped with an infrared sensor, a CMOS camera and an S-band transceiver Chenyang was brought into a 631 × 655 km orbit with a 97.8 ° inclination with a Langer Marsch 2D rocket. It is probably a technically related satellite, but it uses an optical camera instead of SAR radar.

Yaogan Weixing 3 is a satellite of the same series as YaoGan 1 launched on November 11, 2007 with an LM-4C rocket. It was placed in a 613 × 623 km orbit with 97.9 ° inclination.

Yaogan Weixing 4 was launched on December 1st, 2008 with an LM-2D at 04:42 UTC from the Jiuquan Cosmodrome into a 633 × 652 km orbit with 97.9 ° inclination. It belongs to the same series as Yaogan-2.

Yaogan Weixing 5 (JianBing 8) was launched on December 15, 2008 with an LM-4B at 03:22 UTC from the Taiyuan Cosmodrome into a 519 × 520 km orbit with 97.6 ° inclination. It is a satellite with optical monitoring technology, which however does not correspond to the Yaogan-2, 4 series.

Yaogan Weixing 6 (JianBing 7) was launched on April 22, 2009 with an LM-2C at 02:55 UTC from the Taiyuan Cosmodrome into a 519 × 520 km orbit with 97.6 ° inclination. It is a satellite with radar surveillance technology.

Yaogan Weixing 7 was launched on December 9, 2009 with an LM-2D at 08:42 UTC from the Jiuquan Cosmodrome.

The launch of yaogan 8 took place on 15 December 2009 from the Taiyuan Satellite Launch Center with a CZ-4C.

Yaogan Weixing 9 was launched on March 5, 2010 with a CZ-4C from the Jiuquan Cosmodrome . It is a constellation of the three satellites Yaogan Weixing 9A , Yaogan Weixing 9B and Yaogan Weixing 9C .

Yaogan Weixing 10 was launched on August 9, 2010 with a CZ-4C from the Jiuquan Cosmodrome . The satellite was deployed on a polar, sun-synchronous orbit at an altitude between 607 and 622 km. The orbit inclination to the equator is 97.8 degrees, so it is slightly declining.

Yaogan Weixing 11 was launched on September 22, 2010 with a CZ-2D from the Jiuquan Cosmodrome .

Yaogan Weixing 12 was launched on November 9, 2011 and corresponds to the Yaogan 5 design.

Yaogan Weixing 13 was launched on November 29, 2011 and corresponds to the Yaogan 6 type.

Yaogan Weixing 14 was launched on May 10, 2012 and is an optical satellite.

Yaogan Weixing 15 was launched on May 29, 2012 with a rocket of the type Langer Marsch 4C and corresponds to the type Yaogan 8. The satellite was placed in an almost circular polar earth orbit with an orbit height of 1,200 kilometers and an inclination of 100.1 degrees .

Yaogan Weixing 16 to 30 started with CZ-2 and CZ-4 between November 25, 2012 and May 15, 2016. Numbers 16, 17, 20, and 25 were each a group of three satellites.

From September 2017 to January 2018, the Yaogan Weixing 30-01 , -02 , -03 and -04 groups , each consisting of three satellites , started with CZ-2C and -2C . On April 10, 2018, the group of three 31-01 followed on a CZ-4C.

Yaogan Weixing 32-01 and 32-02 started on October 9, 2018 with a CZ-2C.

When Yaogan Weixing 33 was launched on May 24, 2019 with a CZ-4C, the third stage missile malfunctioned. The step and the payload crashed onto Cambodian soil.

technology

According to government information, the Yaogan Weixing satellites of type 1 (Yaogan 1, 3 and 10) are about 2,700 kg research satellites that are used to measure mineral resources and crops. The data could also improve natural disaster predictions. They are the first Chinese satellites to have a synthetic aperture radar on board that delivers images with unknown sharpness. It is also not known what frequency the radar is operating at. In addition, they should have a movable solar panel that can be controlled from the ground station. In March 2019 there were five such ground stations, namely in Miyun near Beijing , Kashgar , Xinjiang Province , Sanya on Hainan Island , Kunming , Yunnan Province , and Kiruna , Sweden . The high-resolution Earth observation satellite Gaofen Mokuai Weixing (高分 多 模 卫星), which was launched on July 3, 2020, is now part of the network of satellites operated by the Research Institute for Space Information (空 天 信息 创新 研究院) of the Chinese Academy of Sciences and Ground stations involved.

Web links

Gunter's Space Page:

swell

  1. ↑ Spaceflight Now: Remote sensing spacecraft launched on Chinese rocket April 26, 2006
  2. ^ Jonathan's Space Report No. 564: Yaogan ( Memento of March 11, 2007 in the Internet Archive ) May 4, 2006
  3. ↑ 2, 4, 7, 11, 24, 30
  4. ↑ SinoDefence: Remote Sensing Satellite 2 (JianBing 6) ( Memento from July 2, 2008 in the Internet Archive )
  5. ^ The Satellite Encyclopedia: YaoGan 3
  6. ↑ Deng Shasha: China launches remote sensing satellite. Xinhua, December 1, 2008; archived from the original on September 5, 2014 ; accessed on December 2, 2008 .
  7. ↑ Gunter Krebs: Yaogan 2, December 4, 15, 2008, accessed on December 18, 2008 (English).
  8. ↑ a b YAOGAN 6 Satellite details 2009-021A NORAD 34839. In: N2YO.com. April 30, 2009, accessed April 30, 2009 .
  9. ↑ Gunter Krebs: Yaogan 5, 12, 21 (JB-10 1, 2, 3). December 15, 2008, accessed December 18, 2008 .
  10. ↑ The Orion: China launches military satellites
  11. ↑ China launches "Yaogan VII" remote-sensing satellite. Xinhua, December 9, 2009; archived from the original on December 13, 2009 ; accessed on December 9, 2009 .
  12. ^ Rui C. Barbosa: China completes 2009 schedule by launching another spy satellite. In: nasaspaceflight.com. December 15, 2009, accessed December 15, 2009 .
  13. ^ Rui C. Barbosa: China launch YaoGan Weixing-9, announce increase in vehicle production. nasaspaceflight.com, March 5, 2010, accessed March 5, 2010 .
  14. ^ Rui C. Barbosa: China launches military satellite YaoGan Weixing-10. nasaspaceflight.com, August 9, 2010, accessed August 28, 2010 .
  15. ↑ The Orion: Chinese military reconnaissance launched
  16. ^ Rui C. Barbosa: China launches YaoGan Weixing-11, press forward with Station and Lunar goals. nasaspaceflight.com, September 21, 2010, accessed September 23, 2010 (due to the time zone, the article bears the date of the day before the start).
  17. ↑ The Orion: Yaogan 15 Observed for China's Military
  18. ↑ China suffers Long March 4 failure. In: Spacenews. May 23, 2019, accessed May 26, 2019 .
  19. ↑ ធ្លាក់ បំណែក ដែក ពី លើ អាកាស នៅ ចំណុច ព្រំដែន ខេត្តស្ទឹងត្រែង, សមត្ថកិច្ច កំពុង ស្រាវជ្រាវ (video inside). In: freshnewsasia.com. May 24, 2019, Retrieved May 26, 2019 (Khmer).
  20. ↑ China Remote Sensing Satellite Ground Station (RSGS). In: radi.cas.cn. Accessed March 29, 2019 .
  21. ↑ 中国 遥感 卫星 地面站. In: radi.cas.cn. Retrieved March 29, 2019 (Chinese).
  22. ↑ 高 雅丽: 中国 遥感 卫星 地面站 喀什 站 ： 坚守 边陲 十年 “牧 星 人”. In: sciencenet.cn. January 22, 2018, Retrieved March 29, 2019 (Chinese).
  23. ↑ 田 进: 高分 多 模 卫星 成功 发射 西安 科技 为 卫星 信息 传输 搭建 重要 桥梁. In: shx.chinanews.com. July 5, 2020, accessed July 6, 2020 (Chinese).
  24. ↑ 孙 自 法: 中国 遥感 卫星 地面站 成功 接收 高分 多 模 卫星 数据. In: chinanews.com. July 6, 2020, accessed July 6, 2020 (Chinese).