| Acronym | Meaning |
| USB | Upper Side Band |
| MET | Master Events Timer |
| MACRO | Merge And Correlate Recorded Output (Program) |
| FPHB | Flight Procedures Handbook |
| RBE | Radiation Biological Effectiveness |
| GFE | Government Furnished Equipment |
| PCTO | Payload Cost Tradeoff Optimization |
| APC | Adaptive Payload Carrier |
| SBA | Structure Borne Acoustic |
| PCA | Pneumatic Control Assembly |