| Acronym | Meaning |
| SID | Sudden Ionospheric Disturbance |
| RMS | Remote Manipulator System |
| JCMT | James Clerk Maxwell Telescope |
| ASRM | Advanced Solid Rocket Motor |
| ELV | Expendable Launch Vehicle |
| PLB | Payload Bay |
| EUTELSAT | European Telecommunications Satellite Organization |
| COSTAR | Corrective Optics Space Telescope Axial Replacement |
| HALOE | Halogen Occultation Experiment |
| PMT | PhotoMultiplier Tube |