| Acronym | Meaning |
| SDS | Software Design Specification |
| PPS | Pulse Per Second |
| NC1 | Nominal Correction 1 (Phasing Maneuver) |
| FLAP | Flight Application Software |
| LAGS | Launch Abort Guide Simulation |
| FPM | Folding Platform Mechanism |
| UMO | Unmanned Orbital |
| VSA | Verification Site Approval |
| TD | Test Director (NASA) |
| SIO | Serial Input/output |