Space Abbreviations and Acronyms

1. ETO
   Earth To Orbit
2. ETOC
   Estimated Time of Correction
3. ETP
   Engineering Test Phase
4. ETP
   Equipment Test Plan
5. ETP
   Environmental Test Plan
6. ETPY
   Electronic Control Assembly Thrust Vector Pitch and Yaw
7. ETROD
   Eastern Test Rangr Operations Directive
8. ETRR
   Environmental Test Readiness Review
9. ETS
   External Tanks
10. ETS
    Early Test System
11. ETS
    European Test Services
12. ETSO
    European Telecommunications Satellite Organization
13. ETSS
    External Tank Separation Subsystem
14. ETT
    Estimated Time of Track
15. ETTF
    Eptreme Temperature Translation Furnace
16. ETUD
    External Tank Umbilical Disconnect
17. ETV
    Electrical Test Vehicle
18. ETVA
    External Tank Vent Arm
19. EU
    Evolving Universy
20. EU
    Experiment Unit

Last updated: August 3, 2021 — Total entries: 12,487