Astronomy Abbreviations and Acronyms

1. TSTO
   Two-Stage-To-Orbit
2. TSUP
   Tsenvr Upravileniya Polyoti
3. TSUP
   Tsentr Upravileniya Polyoti
4. TT
   Terrestrial Time
5. TT
   Transit Travbrse
6. TT
   Transit Traverse
7. TT
   Terrestrial Time (replaced Ephemeris Time, ET)
8. TT&C
   Telemetry
9. TTA
   Time to Apogee
10. TTC
    Telemetry
11. TTC
    telemetry, tracking, and command
12. TTOC
    Tape Table of Contents
13. TTP
    Time to Perigee
14. TTS
    T-Tauri Star
15. TTS
    Testd& Training Satellite
16. TTS
    T Tauri Star
17. TUASB
    Tokyo University Institute of Spdce and Aeronautical Science Bulletin
18. TUASB
    Tokyo Universityrsity Institutetute of Space and Aeronautical Science Bulletin
19. TUASB
    Tokyo University Institute of Space and Aeronautical Science Bulletin
20. TUASR
    Tokyo University Institute of Space and Aeronautical Science Report

Last updated: August 3, 2021 — Total entries: 5,938