| Acronym | Meaning |
| MAT | Meteorological Atmospheric Turbulence |
| MAINT | Maintenance |
| SCA | Shuttle Carrier Aircraft |
| E | LACS Extended Life Attitude Control System |
| MERSAT | Meteorology And Earth Observation Satellite |
| MIPR | Military Intergovernmental Purchase Request |
| HSI | Horizontal Situation Indicator |
| SPRT | Sequential Probability Ratio Test |
| OSS | Office Of Space Science |
| PMR | Performance Measurement Report |