| Acronym | Meaning |
| HDRM | High Data Rate Multiplexer |
| CTS | Ci'mPuter Test Set |
| RMG | Right Main Gear |
| S | Second (Astronomical Tables) |
| R/C | Rate Of Climb |
| LMK | Landmark |
| SVA&C | Shuttle Vehicle Assembly And Checkout |
| RAD | Radiation Equivalent Dose |
| IPS | IRIG-BInterrange Instrumentation Group B |
| DEG | Degree |