Gravity-gradient stabilization or tidal stabilization is a passive method of stabilizing artificial satellites or space tethers in a fixed orientation using only the mass distribution of the orbited b
Transit-O (Operational) navigation satellite with a gravity boom
Agena target vehicle
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The Agena Target Vehicle, also known as Gemini-Agena Target Vehicle, was an uncrewed spacecraft used by NASA during its Gemini program to develop and practice orbital space rendezvous and docking tech
Gravity-gradient stabilization
…to use this technique in human spaceflight occurred on September 13, 1966 during the US Gemini 11 mission. The Gemini spacecraft was attached to the Agena target vehicle by a 100-foot (30 m) tether. The attempt was a failure, as insufficient gradient was produced to keep the tether taut. On August 11, 1978, during the…
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An Atlas-Agena launch vehicle launches GATV-5006 into orbit for the Gemini 11 mission.
The ATDA in orbit as seen from Gemini 9A, above Caracas, Venezuela, the Venezuelan Coastal Range, Isla La Orchila, and the Los Roques Archipelago. The white parts are the partially-opened shroud. The photo is mirrored.
Atlas Agena 6 Launch