| Acronym | Meaning |
| MGA | Middle Gimbal Angle |
| GCS | Ground Communications System |
| TVEXPIS | TV Experiment Interconnecting Station |
| SDC | Software DeveloPment COmPuter |
| CCTV | Closed Circuit Television |
| PORR | Preliminary Operat Ons Requirements Review |
| PSIG | Propulsion Systems Integration Group |
| SSPRO | Space Shuttle Program Resident Office |
| TC | Thermocouple |
| ETR | Eastern Test Range (ESME Preferred) |