NASA Abbreviations and Acronyms

1. TSRA
   Total System Requirements Analysis
2. TSS
   Tps Summary Sheet Control
3. TSS
   Tug Structural Support
4. TSS
   Time Sharing System
5. TSS
   Taps Support Structure
6. TSSU
   Test Signal Switching Unit
7. TST
   Test
8. TSU
   Time Standard Unit
9. TSU
   Thermal Structural Unit
10. TSW
    Test Switch
11. TT
    Teletype
12. TT
    Test
13. TT
    Total Temperature
14. TT
    Turnaround Time
15. TT
    Terminal Timing
16. TT
    Thrust Termination
17. TT&C
    Telemetry
18. TT&C
    Tracking
19. TT&C
    Tracking Telemetry and Control
20. TTC
    Telemetry

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