| Acronym | Meaning |
 | CSM | Command And Service Module |
| SL | (Comet) Shoemaker-Levy / SpaceLab |
| MPESS | Multiple Purpose Experiment Support Structure |
| ENAC | Energetic Neutral Atom Camera |
| SEI | Space Exploration Initiative |
| PAM | Payload Assist Module |
| ISEP | Isolated/Stabilized Exercise Platform |
| GNC | Guidance |
| HRMS | High Resolution Microwave Survey |
| ESOC | European Space Operations Centre |
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