NASA Abbreviations and Acronyms

1. SCT
   Scanning Telescope
2. SCU
   Secondary Control Unit
3. SCU
   Sequence Control Unit
4. SCU
   Service and Cooling Umbilical
5. SCU
   Signal Conditioner Unit
6. SCU
   Signal Conditioning Unit
7. SIN
   Sine
8. Sits
   Science Instrument Test System
9. SOT
   Strap-on Tank
10. SOT
    Science Operations Time
11. T&V
    Test and Verification
12. T&V
    Thermal Vacuum
13. CLMN(S)
    Column
14. L/O
    Lift-Off
15. S/S
    Space Shuttle
16. S/S
    Samples Per Second
17. S/S
    Single Sideband
18. S/S
    Subsystem
19. VW(S)
    View
20. SPSS
    Science Planning and Scheduling System

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