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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.
Shijian-21 [ edit ] In December 2021 - January 2022, China's Shijian-21 space debris mitigation satellite has docked with the defunct Beidou-2 G2 navigation satellite to drastically alter its geostationary orbit, demonstrating capabilities only previously exhibited by the United States.
BeiDou-2 - Sent to GEO graveyard Orbit by Shijian-21 space Debris mitigation satellite or orbital servicing vehicle in January 2022. [10] 3 Compass-G1 16 January 2010 16:12 Xichang, LC-2 Long March 3C: N/A GEO 140.0° E Retired: BeiDou-2 4 Compass-G3 2 June 2010 15:53 Xichang, LC-2 Long March 3C: N/A GEO 79.5° E Retired September 29, 2018
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 ...
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.
These 50 printable pumpkin carving templates are ready to inspire you. On each image, click "save image as" and save the JPEGs to your computer desktop. From there, you can print them!
California said on Tuesday it has withdrawn its request for a federal waiver to require commercial truckers to transition to zero-emissions vehicles, preempting an expected denial from the ...
The Long March 4B (Chinese: 长征四号乙火箭), also known as the Chang Zheng 4B, CZ-4B, and LM-4B, is a Chinese expendable orbital launch vehicle.Launched from Launch Complex 1 at the Taiyuan Satellite Launch Center, it is a 3-stage launch vehicle, used mostly to place satellites into low Earth orbit and Sun-synchronous orbits.