| Acronym | Meaning |
| NVB | Navigational Base |
| CONV | Converter |
| ELMS | Elements |
| PRD | Procurement Regulation Directive |
| BCP | Base Condemnation Percent |
| HAM | Height Adjustment Maneuver |
| ESDAC | European Space Data Center (Darmstadt |
| SLI | ERNO Spacelab Integration And Test |
| IWG | Investigator Working Group |
| DEW | Distant Early Warning |