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First mentioned by name in the 2022 China Military Power Report, the U.S. Office of the Secretary of Defense writes "China has launched multiple satellites to conduct scientific experiments on space maintenance technologies and is conducting research on space debris cleanup; the most recent launch was the Shijian-21 launched into GEO in October ...
[2] [4] [5] [6] Later, Shiyan 7 shifted to rendezvous with Shijian 7 (of unknown mission) with whom it maintained proximity from 19 to 20 August 2013 until it maneuvered into a 5 km lower orbit. [ 4 ] [ 7 ] Drawing further suspicion, around 19 October 2013, Shiyan 7 maneuvered to a 1 km higher orbit and released a previously untracked object ...
The Inter-Agency Space Debris Coordination Committee (IADC) is an inter-governmental forum whose aim is to co-ordinate efforts to deal with debris in orbit around the Earth founded in 1993. The primary purposes of the IADC is information exchange on space debris research activities, facilitating opportunities for joint research, and reviewing ...
NASA scientists continue to develop and upgrade orbital debris models to describe and characterize the current and future debris environment. Engineering models, such as ORDEM2000, can be used for debris impact risk assessments for spacecraft and satellites, including the International Space Station and the Space Shuttle.
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).
On 11 January 2007, China conducted an anti-satellite missile test. A Chinese weather satellite—the FY-1C (COSPAR 1999-025A) polar orbit satellite of the Fengyun series, at an altitude of 865 kilometres (537 mi), with a mass of 750 kilograms (1,650 lb) [1] —was destroyed by a kinetic kill vehicle traveling with a speed of 8 km/s (18,000 mph) in the opposite direction [2] (see Head-on ...
The vast amount of rubble including unexploded ordnance left by Israel's devastating war in the Gaza Strip could take about 14 years to remove, a United Nations official said on Friday. Israel's ...
Research indicates that the patch is rapidly accumulating. [14] The patch is believed to have increased "10-fold each decade" since 1945. [16] The gyre contains approximately six pounds of plastic for every pound of plankton. [17] A similar patch of floating plastic debris is found in the Atlantic Ocean, called the North Atlantic garbage patch.