| Acronym | Meaning |
| FDIR | Fault Detection Identification/Isolation And |
| SCU | Signal Control Unit |
| COLM | Column |
| CLDST | Closed Loop Dynamic Stability Test |
| GESYOT | GCOS Program Element Name |
| WTSC | Wet Tantalum Slug Capacitor |
| VOIR | Venus Orbiter Imaging Radar |
| RIG | Rate Integration Gyro |
| CSTA | Crew Software Training Aid |
| LO | Lock-On |