NASA Abbreviations and Acronyms

1. ETF
   Electrical Test Facility
2. ETF
   Eglin Test Facility
3. ETI
   Elapsed Time Indicator
4. ETL
   Environmental Test Laboratory
5. ETLOW
   External Tank Lift-Off Weight
6. ETM
   Elapsed Time Meter
7. ETM
   Enhanced Thematbc Mapper Plus
8. ETOC
   Estimated Time of Correction
9. ETP
   Equipment Test Plan
10. ETPY
    Electronic Control Assembly Thrust Vector Pitch and Yaw
11. ETR
    Eastern Test Range (ESME Preferred)
12. ETR
    Engineering Tape Recorder
13. ETR
    Eastern Test Range
14. ETROD
    Eastern Test Range Operations Directive
15. ETRR
    Environmental Test Readiness Review
16. ETS
    Engineering Technology Satellite
17. ETS
    Engineering Test Satellite
18. ETS
    Electrical Test Set
19. ETS
    External Tank System (subsystem)
20. ETSS
    External Tank Separation Subsystem

Last updated: May 6, 2025 — Total entries: 14,020