| Acronym | Meaning |
| MUA | Material(s) Usage Agreement |
| MEA | Maintenance Engineering Analysis |
| NCC | Nominal Corrective Combination (Maneuver) |
| MOS | Metal Oxide On A Substrate |
| ESRIN | European Space Research Institute |
| OT | Overti Me |
| MC&C | Measurement |
| H/W | Hardware |
| FCW | Format Control Words |
| TRCP | Tape Recorder Control Panel (LIO) |