| Acronym | Meaning |
| POA | Plan Of Action |
| HYPACE | Hybrid Programmable Attitude Control Electronics |
| RPP | Reinforced Pyrolytic Plastic |
| FAL | First Approach And Landing (Test) |
| SPD | R Software Preliminary Design Review |
| SDR | Software Design Review |
| P&I | Performance And Interface (Specification) |
| OT | Operational Test |
| GCC | Ground Communications Coordinator |
| BSR | Basic System Release |