Difference between revisions of "Category:Lockheed McDonnell Agena Target Vehicle"

Lockheed McDonnell Agena Target Vehicle in When We Left Earth: The NASA Missions.

The Lockheed McDonnell Agena Target Vehicle (ATV) was an unmanned spacecraft used by NASA during its Gemini program to develop and practice orbital space rendezvous and docking techniques and to perform large orbital changes, in preparation for the Apollo program lunar missions. Each ATV consisted of an Agena-D derivative upper rocket stage built by Lockheed and a docking adapter built by McDonnell. The Agena was launched from Cape Canaveral Air Force Station Launch Complex 14 on top of an Atlas booster built by the Convair division of General Dynamics. The Agena first burn would occur shortly after shroud jettison and separation from the Atlas over the Atlantic Ocean. Over Ascension Island, a second burn would place the Agena into a low circular orbit. The McDonnell Gemini spacecraft would then be launched from Launch Complex 19, as soon as 90 minutes later. Both countdowns would proceed in parallel and required close synchronization. The Gemini would rendezvous and dock with the Agena as soon as Gemini's first orbit toward the end of the program. The Gemini astronauts would then fly the combined spacecraft in a stabilized mode and perform a number of experiments. After the Gemini capsule separated for the last time, the Agena remained in orbit for a short time and was used to verify the command system. 7 flights occurred.

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