| Acronym | Meaning |
 | TAI | International Atomic Time |
| SSO | Spurious Shut-off |
| CFA | Harvard-Smithsonian Center For Astrophysics |
| CRIM | Commercial Refrigerator Incubator Module |
| UFO | Unidentified Flying Object |
| SPTN | SPARTAN |
| SEI | Space Exploration Initiative |
| MMH | MonoMethyl Hydrazine |
| SOB | Strap-On Booster |
| ESOC | European Space Operations Centre |
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