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Distribution Control Agency
in NASA
Digital Command Assembly
in NASA
Distance of Closest Approach
in NASA
Design Change Authorization
in NASA
Defense Communications Agency
in NASA
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Similar to DCA
A/FM - Air/Firing Mechanism
A/G - Air to Ground
A/L - AutoLand
A/L - AirLock
A/L - Approach and Landing
AA - Astronomical Applications
AA - Adverse Action
View all in NASA