| Acronym | Meaning |
| FL | Feed Lines |
| SFPA | Single Failure Point Analysis |
| GEOSEPS | Geosynchronous Solar Electric Propulsion Stage |
| COFR | Certificate Of Flight Readiness |
| HFTF | Horizontal Flight Test Facility |
| LC | Intercomputer |
| SRR | Site Readiness Review |
| REGEN | Regenerate |
| LSAP | Launch Sequence Applications Program |
| VGZ | Velocity To Be Gained (Body Z-Axis) |