Missions

INTELSAT 21

Payload

The Intelsat 21 satellite is based on the BSSI 702MP mid-level power platform.

Designed to provide 15 or more years of satellite service, the Intelsat 21 spacecraft will carry 24 C-band transponders for coverage over the western hemisphere and 36 Ku-band transponders with Brazil and mobility beams.

IS-21 vital statistics:

  • Platform:  Boeing Satellite Systems 702MP

  • Dimensions, in orbit:
    H, 6.9 m
    W, antennas: 9.25 m
    L, solar arrays: 36.85 m

  • Mass at Launch: 5,984 kilograms (13,192 lbs.)

  • The payload is powered by two solar wings, with four panels of ultra triple-junction gallium arsenide solar cells.

  • Power at end-of-life:  11.8 kW

  • Operational Lifetime: 15+ years

 

 
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