| Acronym | Meaning |
| BDC | Bit Error Rate |
| VCB | Vertical Location Of The Center Of Buoyancy |
| GCE | Ground Checkout Equipment |
| RPTA | Rudder Pedal Transducer Assembly |
| MDCS | Master Digital Command System |
| FDR | Flight Data Recorder |
| TG | Ground Systems (KSC Directorate) |
| MACH | Velocity Relative To The Speed Of Sound |
| V-RTIF | Vandenberg Real Time Interface |
| T- | Time Prior To Launch |