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SJ 20



SJ 20 (Shijian 20) was a Chinese experimental geostationary satellite based on the new DFH-5 Bus.

SJ 20 is the second flight of the DFH-5 ultra-high-performance satellite platform, featuring a high-thrust ion propulsion. It provides payload power up to 28 Kilowatts. The satellite has a launch mass of more than 8000 kg.

Alternate Names

  • SJ20
  • 44910
  • Shijian 20

Facts in Brief

Launch Date: 2019-12-27
Launch Vehicle: Long March 5
Launch Site: Wenchang, Peoples Republic of China

Funding Agency

  • Chinese Academy of Sciences (Peoples Republic of China)


  • Technology Applications

Additional Information

Questions and comments about this spacecraft can be directed to: Coordinated Request and User Support Office

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