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Shijian-18 was a Chinese communications and technology demonstration satellite developed and launched by the China Academy of Space Technology on 2 July 2017. It was the maiden flight of the DHF-5 satellite bus, which is designed with 16-year lifespan. Shijian-18 carried 18 experiments on board involving communications and space telescopes.
The degradation of plastics in the ocean also leads to a rise in the level of toxics in the area. [21] The garbage patch was confirmed in mid-2017, and has been compared to the Great Pacific Garbage Patch's state in 2007, making the former ten years younger. The South Pacific garbage patch is not visible on satellites, and is not a landmass.
Shiyan 21 16 December 2022 LEO: 480.8 km × 498.5 km 36.0° 54752 2022-172A: XSLC: Long March 11: Operational Shiyan 22A 13 January 2023 LEO: 504.3 km × 521.9 km 43.2° 55242 2023-006A: JSLC: Long March 2D: Operational Shiyan 22B 13 January 2023 LEO: 510.6 km × 526.3 km 43.2° 55243 2023-006B: JSLC: Long March 2D: Operational Shiyan 23 11 May ...
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A garbage patch is a gyre of marine debris particles caused by the effects of ocean currents and increasing plastic pollution by human populations. These human-caused collections of plastic and other debris are responsible for ecosystem and environmental problems that affect marine life, contaminate oceans with toxic chemicals, and contribute ...
Tongxin Jishu Shiyan (TJS, Chinese: 通信技术试验; pinyin: Tōngxìn Jìshù Shìyàn; lit. 'communication technology test') is a Chinese military satellite program operating in geostationary orbit (GEO).
First flight of Long March 5B. Some debris from the CZ-5B's core stage may have survived reentry and fell on villages in the Ivory Coast. [8] 29 May 2020 20:13 [10] Long March 11: F-09 Xichang: Successful XJS-G (Chuangxin 6-01) Low Earth: Shanghai Engineering Center for Microsatellites Earth observation technology XJS-H Low Earth
The South Pacific garbage patch is an area of ocean with increased levels of marine debris and plastic particle pollution, within the ocean's pelagic zone. This area is in the South Pacific Gyre , which itself spans from waters east of Australia to the South American continent, as far north as the Equator , and south until reaching the ...