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JCSAT 12, a communications satellite for Japan, was launched on an Ariane 5 rocket from Kourou on 21 August 2009 at 22:09 UT. The 4,000 kg satellite carries 30 Ku-band and 12 C-band transponders serving Japan, the Asia-Pacific region, and Hawaii. The satellite will serve as a backup and will be renamed JCSAT R-A once it is operational. It has an expected life span of 15 years.

Alternate Names

  • 35755
  • JCSAT12

Facts in Brief

Launch Date: 2009-08-21
Launch Vehicle: Ariane 5
Launch Site: Kourou, French Guiana

Funding Agency

  • Unknown (Japan)


  • Communications

Additional Information

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

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