| Acronym | Meaning |
| EMI | Electromagnetic Interference |
| LFAM | Low Frequency Accelerometer Modes |
| EHX | Experiment Dedicated Heat Exchanger |
| B/O | Booster Orbiter |
| OTA | Optical Telescope Assembly |
| SDM | SYstem Definition Manual |
| MCLT | Maximum Cruise Level Thrust |
| PTO | Power Test Operations |
| TAA | Temporary Access Authorization |
| SSOP | Space Systems Operating Procedure(s) |