| Acronym | Meaning |
| MMS | Multimission Modular Spacecraft |
| TSU | Time Standard Unit |
| WTR | Western Test Range |
| EVA | Earned Value Analysis |
| T/W | Thrust Weight |
| TSLD | Troubleshooting Logic Diagram |
| H | EPAHigh Efficiency Particle Accumulator |
| DARTS | Digital Automated Radar Tracking System |
| EXTGH | Extinguish |
| LUCS | Instrumentation Update Command SYstem |