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Rigid Sphere 1



This satellite (AVL 802H), was a 2.1-m-diameter inflatable sphere constructed of wire mesh and a plastic skin. It was one of seven spherical research satellites ejected from OV1-21. The spacecraft was designed to gather aerodynamic data for use in the design and development of orbiting vehicles.

Alternate Names

  • Grid Sphere Drag
  • AVL-802H
  • 05406
  • SESP 70-2H
  • RigidSphere1

Facts in Brief

Launch Date: 1971-08-07
Launch Vehicle: Atlas
Launch Site: Vandenberg AFB, United States
Mass: 1.6 kg

Funding Agency

  • Department of Defense-Department of the Air Force (United States)


  • Engineering
  • Earth Science

Additional Information

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



NameRoleOriginal AffiliationE-mail
Mrs. Mary P. GauveyGeneral ContactUS Air Force Avionics Laboratory
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