| Acronym | Meaning |
| LW | Launch Window |
| LOI | Lunar Orbit Insertion |
| NETWORK | IntNetwork Interface Processor |
| CRR | Critical Requirements Review |
| SMVP | Shuttle Master Verification Plan |
| OPPAR | Orbiter Project(s) Parts Authorization Request |
| ESS | Environmental Support System |
| SADEC | SAEsociety Of Automotive Engineers |
| MTEEC | Electronic Maintenance Test Equipment |
| EM | Exception Monitor |