| Acronym | Meaning |
| PRF | Pulse Repetition Frequency |
| PDP | Postinsertion Deorbit Preparation |
| ULT | Ultimate |
| FDIR | Fault Detection Identification/Isolation And |
| HFX | High Frequency Transceiver |
| SF-SOO | KSC Safety Operations Office |
| HT | High Technology |
| RHP | Right Hand Panel |
| M&R | Maintenance And Repair |
| DSAD | Data Systems And Analysis Directorate (JSC) |