| Acronym | Meaning |
| CSD | LCharles Stark Draper Laboratory (MIT) |
| SRPA | Spherical Retarding Potential Analyzer |
| VEI | Vehicle End Item |
| MPS | Main Propulsion System |
| HT | Heat Transfer |
| CCRF | Consolidated Communication Recording Facility |
| D | Deck |
| GP | GeGP General Publication (RSC) |
| RFA | RF Authorization (Frequency) |
| SCT | Scanning Telescope |