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This three-axis stabilized satellite was designed as a test vehicle to carry communications-related equipment. The purpose of its launch into an equatorial, earth-synchronous orbit was -- (1) to demonstrate new technology, (2) to conduct communications technological experiments, and (3) to develop new communications methodology in conjunction with ground-based components. The spacecraft was a short (1.17-m) right cylinder (1.8-m diameter) with two parallel (1.72-m apart) plane surfaces symmetrically truncating the curved surface. These plane surfaces were also parallel to the cylinder axis. Relatively long, narrow (1.3- by 6.5-m) solar arrays were extendable from mechanisms mounted on the parallel plane sides. A more complete description may be found in the 'NASA-GSFC Mission Operation Plan, section 1,' and in the Mission Operation Report.

Alternate Names

  • 08585
  • CAS-C
  • CTS
  • Communications Technology Satellite
  • Cooperative Application Satellite

Facts in Brief

Launch Date: 1976-01-17
Launch Vehicle: Delta
Launch Site: Cape Canaveral, United States
Mass: 680 kg

Funding Agencies

  • NASA-Office of Space and Terrestrial Applications (United States)
  • Communications Research Centre, Canada (Canada)


  • Communications
  • Engineering

Additional Information

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



NameRoleOriginal AffiliationE-mail
Dr. Wasyl M. Lew, Jr.Program ManagerNASA Headquarters
Dr. J. N. BarryProject ManagerDepartment of Communications/Communications Research Centre
Dr. Irvine PaghisProgram ManagerDepartment of Communications/Communications Research Centre
Dr. A. S. BrownProject ScientistDepartment of Communications/Communications Research Centre
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