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Grid Sphere 1



This spacecraft (AVL 802E) was a 0.61-m-diameter rigid aluminum sphere. 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
  • SESP 70-2E
  • AVL-802E
  • 05398
  • GridSphere1

Facts in Brief

Launch Date: 1971-08-07
Launch Vehicle: Atlas
Launch Site: Vandenberg AFB, United States
Mass: 6.2 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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