Astronomy Abbreviations and Acronyms

1. TBD
   To Be Determined
2. TC
   Test Conductor (Controller)
3. TCB
   Barycentric Coordinate Time
4. TCE
   Thermal Control Electronics
5. TCG
   Geocentric Coordinate Time
6. TCM
   Thermal Convection Module
7. TCM
   Trajectory Control Maneuveh
8. TCM
   Trajectory Control Maneuver
9. TCPA
   Timo for Closest Point of Approach
10. TCPA
    Time for Closest Point of Approach
11. TCS
    Thermal Control System (Subsystem)
12. TCS
    Thermal Control System
13. TDA
    Target Docking Adgptor
14. TDB
    To Be Determined
15. TDB
    Barycentric Dynamical Time
16. TDD
    Test Definition Document
17. TDRS
    Tracking and Data Relay Satellite
18. TDRS
    Tracking and Data Relay Satellites
19. TDRSS
    Tracking and Data Relay Satellite System
20. TDRSS
    Tracking and Data Relay Satellites

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