| Acronym | Meaning |
| ITRDS | Integrated Test Requirements Documents |
| CACC | Communications And Configuration Console |
| HE | Heat Exchange (Exchanger) |
| RFL | Reflect |
| SIA | Solar Inertial Attitude |
| R | IMPMinimum Range To Avoid Plum Impingement |
| BAI | Barometric Altitude Indicator |
| ENVIR | Environment |
| PCR | Project Control Room |
| SYNCOM | Synchronous Communication Satellite (Hughes) |