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China launches Ziyuan-1 02E satellite

  • Category
    Science & Technology
  • Published
    3rd Jan, 2022

Context

Recently, China has launched a new satellite with a camera capable of taking photos of the ground with a resolution of five meters called “Ziyuan-1 02E” or “Five Meter 02 Optical Satellite”.

  • This is the 39th launch of the Longue Marche-4C rocket and the 403rd launch of the entire Long March series.

About

About the satellite


  • The Ziyuan-1 02E carries the same two imaging payloads:
    • a high-resolution visible and near-infrared camera
    • a hyperspectral imager, as well as a new long-wave infrared camera
  • The high-resolution camera will be able to produce images with resolutions of up to five meters (5m) when operating in panchromatic mode.
  • The satellite is also part of a China-Africa cooperation project called “Xiwang” (Hope) to popularize science among teenagers. 
  • The satellite will work with the five-meter optical satellite 01 and will reduce the revisiting time of Chinese territory from three days to two days.

Ziyuan (ZN) Series

  • Ziyuan (meaning Resource), is a series of remote-sensing satellites which China uses to acquire high-resolution images that can be used for surveying Earth resources, disaster management, and ecological and land use monitoring.
  • The first Ziyuan satellite, Ziyuan-1 01, was launched in 1999 in a partnership between China and the Brazil.
  • Six of the nine Ziyuan satellites launched to date have been part of the China-Brazil Earth Resources Satellite (CBERS) program, with the other three – including Ziyuan-1 02E – being solely Chinese-operated.

Significance of the satellite

  • Better understanding of geological environment: Images taken by the satellite duo will help engineers study China’s geological environment and search for minerals.
  • Helpful for other fields: People working in other fields such as transport, agriculture and disaster mitigation will also receive help through the images.
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