| Acronym | Meaning |
| CM | Central Meridian |
| NOCC | Network Operations Control Center |
| EODC | Earth Observation Data Centre |
| AGB | Asymptotic Giant Branch |
| SAS | Space Activity Suit / Space Adaptation Syndrome |
| SR | Special Relativity |
| HLV | Heavy Lift Vehicle |
| UPPP | Union Pour La Promotion De La Propulsion Photonique |
| OMB | Office Of Management And Budget |
| EDO | Extended Duration Orbiter |