| Acronym | Meaning |
 | PPF | Columbus Polar Platform |
| AGE | Auxiliary Ground Equipment |
| MMS | Multi-mission Modular Spacecraft |
| LPO | La Palma Observatory |
| ATCS | Active Thermal Control System |
| RCS | Reaction Control System / Revision Control System |
| ET | External Tank |
| NSF | National Science Foundation |
| OSSA | Office Of Space Science And Applications |
| RG | Red Giant |
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