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The French D5-A satellite was launched as a piggyback of the D5-B. The external structure of the D5-A was an octahedron made up of two truncated tetrahedrons, eight facets of which were covered with solar cells. The D5-A carried a hydrazine propeller that was tested in space.

Alternate Names

  • 07801
  • Pollux

Facts in Brief

Launch Date: 1975-05-17
Launch Vehicle: Diamant
Launch Site: Kourou, French Guiana
Mass: 37.5 kg

Funding Agency

  • Centre National d'Etudes Spatiales (France)


  • Engineering

Additional Information

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



NameRoleOriginal AffiliationE-mail
Mr. J. P. ChassaingProject CoordinatorCentre National d'Etudes Spatiales
Mr. A. OliveroProject ManagerCentre National d'Etudes Spatiales
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