| Acronym | Meaning |
 | PASS | Primary Avionics Software System |
| APL | Applied Physics Laboratory (at Johns Hopkins) |
| WFPCII | Replacement For WFPC |
| APT | Automatic Picture Transmission |
| STC | SHAPE Technical Center |
| GOSAMR | Gelation Of Soils: Applied Microgravity Research |
| MPESS | Multiple Purpose Experiment Support Structure |
| BAE | British Aerospace |
| HJD | Helicentric Julian Date |
| MTFF | Columbus Man-Tended Free-Flyer |
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