| Acronym | Meaning |
| HSU | Helium Service Unit |
| CRDP | Computer Resources Development Plan |
| SEPS | Solar Electric Propulsion System |
| DIPEC | Defense Industrial Plant Equipment Center |
| PMOM | Performance Management Operations Manual |
| RJC | Reaction Jet Control |
| MCL | Mass Change Log |
| CST | Crew Systems Trainer (One-G Trainer) |
| IMP | Initial Memory Protection |
| PCM | Pulse Code Modulator |