| Acronym | Meaning |
| TAP | Telemetry Acceptance Pattern |
| PTIS | Program Test Input System |
| ICMS | Indirect Cost Management SYstem |
| PP | Program Performance |
| PCB | Product Configuration Baseline |
| LPR | Line Printer |
| PSE | Payload Support Equipment |
| EMPGS | Electrical/Mechanical Power Generation SubsYstem |
| PRN | Pseudo-Random Noise |
| GR | Ground R@le |