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FORMOSAT-1 (福爾摩沙衛星一號, formerly known as ROCSAT-1) is an Earth observation satellite operated by the National Space Organization (NSPO) of the Republic of China (Taiwan) to conduct observations of the ionosphere and oceans. The spacecraft and its instrumentation were developed jointly by NSPO and TRW using TRW's Lightsat bus, and was launched from Cape Canaveral Air Force Station, US, by Lockheed Martin on January 27, 1999.

FORMOSAT-1 is still active as of July 2005.

Technical details[edit]


  • Weight: 401 kg
  • Shape: Hexagonal
  • Dimensions
    • Height: 2.1 m
    • Diameter: 1.1 m
  • Solar arrays: Two, 1.16 x 2.46 m
  • Electrical power: 450 watts


  • Experimental Communication Payload (ECP)
  • Ionosphere Plasma Electrodynamics Instrument (IPEI)
  • Ocean Color Imager (OCI)


  • Altitude: 600 km
  • Type: Circular
  • Inclination: 35 degrees

See also[edit]

External links[edit]