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Leasat F5



LEASAT-5, also known as SYNCOM-IV-5, was deployed from the orbiting STS 32 on January 10, 1990. Forty-five minutes after ejecting frisbee-style from the cargo bay, LEASAT's solid perigee kick motor fired to boost it into orbit. Subsequent solid and liquid fuel engine firings inserted the satellite into geosynchronous orbit. It reached its assigned station at 177 deg w on January 14. LEASAT was built by Hughes Space and Communications Group for Hughes Communications, Inc (HCI). The US Navy leased communications service from HCI for DoD users, including air, sea, surface and subsurface units. Twelve UHF repeaters provided the main communications capability; signals were received and transmitted via 2 helical antennas. LEASAT 5 was a 4.26-m-diameter drum, standing 6.17 m high with antenna mast deployed. Body mounted solar arrays provided 1,238 W at the end of its 10-year design life.

Alternate Names

  • Leased Satellite F5
  • 20410
  • Syncom IV-5
  • LeasatF5

Facts in Brief

Launch Date: 1990-01-09
Launch Vehicle: Shuttle
Launch Site: Cape Canaveral, United States
Mass: 1388 kg

Funding Agency

  • Department of Defense-Department of the Navy (United States)


  • Communications

Additional Information

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

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