OPT in NASA could mean:
Displaying 1-5 of 5 result(s).
Similar to OPT
ACCS - Advanced Checkout and Control SystemACE - Advanced Composition Explorer
ACE - Apollo Checkout Equipment
ACES - Acoustic Containerless Experiment System
ACF - Auto- Correlation Function
ACFS - Advanced Concepts Flight Simulator
ACFY - After the Current Fiscal Year
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