| Acronym | Meaning |
| IRP | Intermediate Rated Power (30 Minutes) |
| DSSA | Domain Specific Software Architecture |
| FOUO | For Official Use Only |
| NGL | Gas Generator Speed Left |
| DNS | Doppler Navigation Sensor |
| SSPP | System Safety Program Plan |
| FD/LC | Fault Detection/location Subsystem |
| SPDR | Software Preliminary Design Review |
| SDDD | Software Detailed Design Document |
| QCFI | Quality Conformance Final Inspection (on-site) |