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Shijian 21 24 October 2021 Debris clean-up or counterspace [60] [61] GEO: 36,217.7 km × 36,217.7 km 8.580° 49330 2021-094A: XSLC: Long March 3B: Operational Shijian 21 (subsat) 24 October 2021 Unknown [61] [62] 49382 2021-094C: XSLC: Long March 3B: Operational Shijian 22 TBA: Classified GEO: Planned: not yet launched Planned Shijian 23 8 ...
As of 2012 there were an estimated 500,000 pieces of debris in orbit, [4] with 300,000 pieces below 2000 km . [1] Of the total, about 20,000 are tracked. [ 1 ] Also, about sixteen old Soviet nuclear space reactors are known to have released an estimated 100,000 NaK liquid metal coolant droplets 800–900 km up, [ 5 ] which range in size from 1 ...
[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 ...
Shijian 6-05A: Sun-synchronous: CNSA: ELINT: Shijian 6-05B: Sun-synchronous: CNSA: ELINT: The 400th launch of the Long March series rocket. [72] 13 December 2021 16:09 [73] Long March 3B/E F-82 Xichang, LA-3 Successful Tianlian II-02: Geosynchronous: CNSA: Communications: 23 December 2021 10:12 [74] Long March 7A: F-03 Wenchang, LC-2 Successful ...
02:22 LA-3, XSLC None Yaogan 35-02A Yaogan 35-02B Yaogan 35-02C LEO: Success 61 Y65 29 July 2022 13:28 LA-3, XSLC None Yaogan 35-03A Yaogan 35-03B Yaogan 35-03C LEO: Success 62 Y66 19 August 2022 17:37 LA-3, XSLC None Yaogan 35-04A Yaogan 35-04B Yaogan 35-04C LEO: Success 63 Y75 24 August 2022 03:01 LA-9, TSLC None Beijing-3B SSO: Success 64 ...
6 months 16 days: Controlled: 17 July 1977 Cosmos 1443: USSR: 15,000 kg (33,000 lb) 19 September 1983: 6 months 17 days: Controlled: 2 March 1983 CGRO [3] USA: 14,910 kg (32,870 lb) 4 June 2000: 9 years: Controlled: 5 April 1991 Phobos-Grunt [11] Russia: 13,500 kg (29,800 lb) 15 January 2012: 2 months 6 days: Uncontrolled: 9 November 2011 ...
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.
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).